SEC Form 424B3 filed by enGene Holdings Inc.

Up to 46,977,183 Common Shares and 6,289,198 Warrants to be Offered and Sold by the Selling Holders

and
Up to 8,511,968 Common Shares Issuable Upon Exercise of Warrants

This prospectus relates to the offer and sale from time to time by the selling securityholders named in this prospectus (the “Selling Holders”) of up to: (i) 5,693,002 of the common shares, without par value (“Common Shares” or “enGene Common Shares”) of enGene Holdings Inc. (the “Company”, or “enGene” or “us”) and 2,686,558 warrants to purchase Common Shares (the “Warrants” or “enGene Warrants”) issued for the consideration described in the succeeding paragraph below in connection with the 2023 PIPE Financing (as defined herein) to certain investors (the “2023 PIPE Investors”) including Forbion Growth Sponsor FEAC I B.V., a private limited liability company incorporated in The Netherlands (“FEAC Sponsor”) or an affiliate thereof; (ii) 13,237,012 Common Shares and 3,602,640 Warrants held by certain Selling Holders party to the Registration Rights Agreement (as defined below), including FEAC Sponsor or an affiliate thereof, (iii) 6,289,198 Common Shares that may be obtained by the Selling Holders upon the exercise of the Warrants at an exercise price of $11.50 described in (i) and (ii) above, (iv) 14,902,269 of our Common Shares issued for the consideration described below in connection with the February 2024 PIPE Financing (as defined below) and (v) 6,758,311 of our Common Shares issued for the consideration described below in connection with the October 2024 PIPE Financing (as defined below). See “Selling Holders” for more information about the Selling Holders, including with respect to their acquisition of the securities offered hereby.

On May 16, 2023, certain investors entered into subscription agreements with us and Forbion European Acquisition Corp. (“FEAC”) pursuant to which they purchased a total of 6,435,441 Common Shares and 2,702,791 Warrants for an aggregate consideration of $56,891,682 (the “2023 PIPE Financing”). As a result, each investor in the 2023 PIPE Financing received approximately 1.1595 Common Shares and approximately 0.4870 Warrants for each $10.25 of subscription price.

Prior to the execution and delivery of the Business Combination Agreement (as defined below), enGene agreed to certain modifications of existing convertible indebtedness in an aggregate principal amount of $18,400,000 (the “Amended 2022 Convertible Notes” and, together with the enGene warrants to be issued by enGene as consideration for such modifications, the “Amended 2022 Financing”). Concurrently with the execution and delivery of the Business Combination Agreement, enGene entered into agreements pursuant to which it issued new convertible indebtedness and enGene warrants (i) for cash in an aggregate principal amount of $30,000,000 and (ii) in repayment of certain outstanding indebtedness in an aggregate principal amount of $8,000,000 (collectively, the “2023 Convertible Notes” and, together with the enGene warrants purchased concurrently, the “2023 Financing”; the 2023 Financing together with the Amended 2022 Financing, the “Convertible Bridge Financing”).

Selling Holders party to the Registration Rights Agreement, dated October 31, 2023, by and among the Company, FEAC and each of the Holders identified therein (the “Registration Rights Agreement”) hold securities registered for resale hereunder as follows: (i) 4,189,716 Common Shares and 2,204,355 Warrants obtained in the Business Combination in respect of the Convertible Bridge Financing of enGene Inc. for the same price per Common Share and Warrant as applicable to investors in the 2023 PIPE Financing described above, (ii) 1,373,496 Common Shares (the “FEAC Sponsor Shares”) corresponding to a like number of shares of FEAC Class B ordinary shares, $0.0001 par value (“FEAC Class B Shares) purchased by FEAC Sponsor for a nominal amount prior to FEAC’s initial public offering (the “FEAC IPO”), (iii) 731,619 Warrants (the “Private Warrants”) purchased by FEAC Sponsor at a price of $1.50 per Warrant, (iv) 2,000,000 Common Shares and 666,666 Warrants held by an affiliate of FEAC Sponsor and corresponding to a like number of securities purchased in FEAC’s IPO for a price of $10.00 for a unit consisting of one share and one-third of a Warrant, and (v) 5,673,800 Common Shares obtained in the Business Combination by certain former holders of the equity of enGene Inc. (the “Legacy enGene Investors”), based on the enGene Exchange Ratio (as defined herein) negotiated in connection with the Business Combination. As set out in more detail herein the enGene Exchange Ratio was based on a reference equity value of enGene Inc. of $90.0 million and a reference price per Common Share of $10.25. See “Information Related to Offered Securities”.

On February 20, 2024, we completed the private placement of 20,000,000 Common Shares, at a price of $10.00 per share (the “February 2024 PIPE Financing”) with certain institutional investors pursuant to subscription agreements entered into on February 13, 2024 (collectively, the “February 2024 Subscription Agreements”). Investors in the February 2024 PIPE Financing purchased a total of 20,000,000 Common Shares for an aggregate consideration of $200,000,000, or $10.00 per Common Share.

On October 29, 2024, we completed the private placement of 6,758,311 Common Shares, at a price of $8.90 per share (the “October 2024 PIPE Financing”) with certain institutional investors pursuant to subscription agreements entered into on October 25, 2024 (collectively, the “October 2024 Subscription Agreements”, and together with the February 2024 Subscription Agreements, the “2024 PIPE Subscription Agreements”). Investors in the October 2024 PIPE Financing purchased a total of 6,758,311 Common Shares for an aggregate consideration of $60,148,968, or $8.90 per Common Share.

Pursuant to the 2024 Subscription Agreements, we agreed to register for resale the Common Shares collectively issued pursuant thereto on the registration statement of which this prospectus is part, and to use commercially reasonable efforts to have such registration statement declared effective and kept effective for the periods set forth in the respective 2024 Subscription Agreements.

This prospectus also relates to the issuance by us of up to an aggregate of 8,511,968 Common Shares upon the exercise of a like number of Warrants consisting of (i) the 6,289,198 Warrants described above following their public resale by the Selling Holders and (ii) 2,222,770 additional outstanding Warrants. The Warrants have an exercise price of $11.50 per share.

We will not receive any of the proceeds from the sale of the securities by the Selling Holders. The aggregate proceeds to the Selling Holders will be the sale price of the securities less any discounts and commissions borne by the Selling Holders.

We will receive proceeds from Warrants exercised in the event that such Warrants are exercised for cash, which amount of aggregate proceeds could be up to approximately $97.9 million, assuming the exercise in full of all of the Warrants for cash. There is no assurance that Warrants will be and/or remain in the money prior to their expiration or that the holders of Warrants will elect to exercise any or all of their Warrants for cash. We believe the likelihood that these holders will exercise their Warrants, and therefore any cash proceeds that we may receive in relation to the exercise thereof, will depend on the trading price of our Common Shares. If the market price for our Common Shares is less than the exercise price of Warrants, we believe the holders of Warrants will be unlikely to exercise them. See “Risk Factors” and “Use of Proceeds.”

The Common Shares and Warrants being offered for resale in this prospectus represent approximately 92.2% of our total outstanding Common Shares and approximately 73.9% of our outstanding Warrants, respectively, as of the date of this prospectus. The sale of all the securities being offered in this prospectus could result in a significant decline in the public trading price of our Common Shares and Warrants. Despite such a decline in the public trading prices, the Selling Holders may still experience a positive rate of return on the securities they purchased due to the differences in the trading price and the purchase prices at which they purchased the securities as described above. See “Risk Factors.”

Our registration of the securities covered by this prospectus does not mean that either we or the Selling Holders will issue, offer or sell, as applicable, any of the securities. The Selling Holders may offer and sell the securities covered by this prospectus in a number of different ways and at varying prices. We provide more information in the section entitled “Plan of Distribution.”

Certain Selling Holders acquired their securities through more than one of the above. See “Selling Holders.” This prospectus provides you with a general description of such securities and the general manner in which the Selling Holders may offer or sell the securities. More specific terms of any securities that the Selling Holders may offer or sell may be provided in a prospectus supplement that describes, among other things, the specific amounts and prices of the securities being offered and the terms of the offering. The prospectus supplement may also add, update or change information contained in this prospectus.

You should read this prospectus and any prospectus supplement or amendment carefully before you invest in our securities.

Our Common Shares and Warrants are listed on the Nasdaq Capital Market (“Nasdaq”) under the symbols “ENGN” and “ENGNW,” respectively. On November 20, 2024, the closing price of our common shares was $7.50 and the closing price for our warrants was $1.89.

Investing in our securities involves significant risks. You should carefully read this prospectus, any applicable prospectus supplement and any related free writing prospectus, as well as the documents incorporated by reference herein and therein, before you invest in any of our securities. See “Risk Factors” beginning on page 8 of this prospectus.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The date of this prospectus is November 21, 2024

TABLE OF CONTENTS

ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement that we have filed with the Securities and Exchange Commission (the “SEC”) using a “shelf” registration process under the Securities Act of 1933, as amended (the “Securities Act”). Under this shelf registration process, we and the Selling Holders may, from time to time, issue, offer and sell, as applicable, any combination of the securities described in this prospectus in one or more offerings. The Selling Holders may use the shelf registration statement to sell up to (i) an aggregate of 46,977,183 Common Shares and up to 6,289,198 Warrants from time to time through any means described in the section entitled “Plan of Distribution.” We will not receive any proceeds from the sale by such Selling Holders of the securities offered by them described in this prospectus. More specific terms of any securities that the Selling Holders offer and sell may be provided in a prospectus supplement that describes, among other things, the specific amounts and prices of the Common Shares and/or Warrants being offered and the terms of the offering. We may use the shelf registration statement to issue up to an aggregate of 8,511,968 Common Shares upon exercise of the Warrants. We will receive proceeds from the exercise of any Warrants for cash.

We may also provide a prospectus supplement or post-effective amendment to the registration statement to add information to, or update or change information contained in or incorporated by reference into, this prospectus. You should read both this prospectus and any applicable prospectus supplement or post-effective amendment to the registration statement together with the additional information to which we refer you in the sections of this prospectus entitled “Where You Can Find More Information” and “Incorporation of Certain Documents by Reference.”

Neither we nor the Selling Holders have authorized anyone to provide any information or to make any representations other than those contained in this prospectus, any accompanying prospectus supplement or any free writing prospectus we have prepared. We and the Selling Holders take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. This prospectus is an offer to sell only the securities offered hereby and only under circumstances and in jurisdictions where it is lawful to do so. No dealer, salesperson or other person is authorized to give any information or to represent anything not contained in this prospectus, any applicable prospectus supplement or any related free writing prospectus. This prospectus is not an offer to sell securities, and it is not soliciting an offer to buy securities, in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus or any prospectus supplement is accurate only as of the date on the front of those documents only, regardless of the time of delivery of this prospectus or any applicable prospectus supplement, or any sale of a security. Our business, financial condition, results of operations and prospects may have changed since those dates.

This prospectus contains summaries of certain provisions contained in some of the documents described herein, but reference is made to the actual documents for complete information. All of the summaries are qualified in their entirety by the actual documents. Copies of some of the documents referred to herein have been filed, will be filed or will be incorporated by reference as exhibits to the registration statement of which this prospectus is a part, and you may obtain copies of those documents as described below under “Where You Can Find More Information.”

Unless stated otherwise or as the context otherwise requires, all references to dollar amounts in this prospectus and any prospectus supplement are references to United States dollars. References to “$” or “US$” are to United States dollars and references to “C$” are to Canadian dollars.

Unless the context indicates otherwise, references to the terms “enGene,” the “Company,” the “Registrant,” “we,” “us” and “our” refer to enGene Holdings Inc. and its subsidiaries. References to the terms “enGene Inc.” refer to enGene Inc. and its consolidated subsidiary prior to the Business Combination.

RISK FACTORS

Investing in our securities involves a high degree of risk. Before making an investment decision, you should carefully consider these risks as well as other information we include or incorporate by reference in this prospectus. In particular, you should carefully consider the information under the heading “Risk Factors,” as well as the factors listed under the heading “Special Note Regarding Forward-Looking Statements,” in each case contained in our Annual Report on Form 10-K for our most recent fiscal year, in any Quarterly Reports on Form 10-Q that have been filed since our most recent Annual Report on Form 10-K and in any other documents that we file with the SEC which is incorporated by reference in this prospectus. New risks may emerge in the future at any time, and we cannot predict such risks or estimate the extent to which they may affect our financial condition or performance. Additionally, any prospectus supplement may contain a discussion of additional risks applicable to an investment in us and our securities we are offering under that prospectus supplement. Each of the risks described could result in a decrease in the value of the securities and your investment therein.

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus, any accompanying prospectus supplement or related free writing prospectus, and the documents incorporated by reference herein and therein may contain “forward-looking statements” within the meaning of the safe harbor provisions of Section 27A of the Securities Act of 1933, as amended, Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the Private Securities Litigation Reform Act of 1995 and may contain “forward-looking information” within the meaning of Canadian securities laws (collectively, “forward-looking statements”).

enGene’s forward-looking statements include, but are not limited to, statements regarding enGene’s management teams’ expectations, hopes, beliefs, intentions, goals or strategies regarding the future. In addition, any statements that refer to projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, are forward-looking statements. The words “anticipate,” “appear,” “approximate,” “believe,” “continue,” “could,” “estimate,” “expect,” “foresee,” “intends,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “seek,” “should,” “would” and similar expressions (or the negative version of such words or expressions) may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. Forward-looking statements may include, for example, statements about:

All forward-looking statements, including, without limitation, our examination of historical operating trends, are based upon our current expectations and various assumptions. Certain assumptions made in preparing the forward-looking statements include:

You should not place undue reliance on these forward-looking statements which speak only as of the date hereof. The forward-looking statements contained in this prospectus are based primarily on current expectations and projections about future events and trends that may affect our business, financial condition and operating results. The following uncertainties and factors, among other things (including those described in “Risk Factors” in our Annual Report on Form 10-K and elsewhere in our Quarterly Reports on Form 10-Q and in our other filings with the Securities and Exchange Commission (“SEC”)), could affect future performance and actual results to differ materially and adversely from those expressed in, anticipated or implied by forward-looking statements:

In addition, statements that “we believe” and similar statements reflect beliefs and opinions on the relevant subject. These statements are based on information available to us as of the date of this prospectus. While we believe that information provides a reasonable basis for these statements, that information may be limited or incomplete. Our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all relevant information. These statements are inherently uncertain, and investors are cautioned not to unduly rely on these statements.

The forward-looking statements made in this prospectus relate only to events as of the date on which the statements are made. We undertake no obligation to update any forward-looking statements made in this prospectus to reflect events or circumstances after the date of this prospectus or to reflect new information or the occurrence of unanticipated events, except as required by law. We may not

actually achieve the plans, intentions or expectations disclosed in our forward-looking statements, and you should not place undue reliance on our forward-looking statements.

You should read carefully the risks described in the section entitled “Risk Factors” beginning on page 8 of this prospectus and those contained in our Annual Report on Form 10-K for our most recent fiscal year, in any Quarterly Reports on Form 10-Q that have been filed since our most recent Annual Report on Form 10-K and in any other documents that we file with the SEC under the Exchange Act, each of which is incorporated by reference in this prospectus. and in any accompanying prospectus supplement or related free writing prospectus, together with all information incorporated by reference herein and therein, to better understand the significant risks and uncertainties inherent in our business and underlying any forward-looking statements. As a result of these risks, actual results could differ materially and adversely from those anticipated or implied in the forward-looking statements in this prospectus or in any accompanying prospectus supplement or related free writing prospectus, or incorporated by reference herein and therein, and you should not place undue reliance on any forward-looking statements.

USE OF PROCEEDS

All of the Common Shares and Warrants offered by the Selling Holders pursuant to this prospectus will be sold by the Selling Holders for their respective accounts. We will not receive any of the proceeds from these sales.

We will receive up to an aggregate of approximately $97,887,632 from the exercise of the Warrants, assuming the exercise in full of all of the Warrants for cash. There is no assurance that Warrants will be and/or remain in the money prior to their expiration or that the holders of Warrants will elect to exercise any or all of their Warrants for cash. We believe the likelihood that these holders will exercise their Warrants, and therefore any cash proceeds that we may receive in relation to the exercise thereof, will depend on the trading price of our Common Shares. If the market price for our Common Shares is less than the exercise price of Warrants, we believe the holders of Warrants will be unlikely to exercise them. If the market price for our Common Shares exceeds the exercise price of the Warrants, we believe the holders of the Warrants will be more likely to exercise them. See “Risk Factors.”

We expect to use the net proceeds from the exercise of the Warrants, if any, for general corporate purposes. We will have broad discretion over the use of proceeds from the exercise of the Warrants. There is no assurance that the holders of the Warrants will elect to exercise any or all of such Warrants. To the extent that the Warrants are exercised on a “cashless basis,” the amount of cash we would receive from the exercise of the Warrants will decrease.

The Selling Holders will pay any underwriting fees, discounts and selling commissions incurred by such Selling Holders in disposing of their Common Shares. Pursuant to a registration rights agreement entered into by the Company, FEAC Sponsor and certain other shareholders of the Company, the Company will bear all other costs, fees and expenses incurred in effecting the registration of Common Shares covered by this prospectus, including, without limitation, all registration and filing fees, Nasdaq listing fees and fees and expenses of counsel and independent registered public accountants.

SELLING HOLDERS

This prospectus relates to the possible resale by the Selling Holders of (i) up to 46,977,183 of our Common Shares (which includes 6,289,198 Common Shares that may be issued upon exercise of the enGene Warrants) and (ii) up to 6,289,198 of our Warrants.

The Selling Holders may from time to time offer and sell any or all of the Common Shares and Warrants set forth below pursuant to this prospectus and any accompanying prospectus supplement. When we refer to the “Selling Holders” in this prospectus, we mean the persons listed in the table below, and the pledgees, donees, transferees, assignees, successors, designees and others who later come to hold any of the Selling Holders’ interest in the Common Shares or Warrants after the date of this prospectus such that registration rights shall apply to those securities.

We cannot advise you as to whether the Selling Holders will in fact sell any or all of such Common Shares or warrants. In addition, the Selling Holders may sell, transfer or otherwise dispose of, at any time and from time to time, the Common Shares and Warrants in transactions exempt from the prospectus or registration requirements of the Securities Act or with respect to certain Selling Holders, applicable Canadian securities laws, after the date of this prospectus. For purposes of the following table, we have assumed that the Selling Holders will have sold all of the securities covered by this prospectus upon the completion of the offering.

The following table is prepared based on information provided to us by the Selling Holders. It sets forth the name and address of each of the Selling Holders, information with respect to each Selling Holder’s acquisition of the securities offered hereby, the aggregate number of Common Shares and Warrants that the Selling Holders may offer pursuant to this prospectus, and the beneficial ownership of the Selling Holders both before and after the offering. We have based the percentage ownership prior to this offering on 50,976,676

Common Shares and 8,511,968 Warrants outstanding, in each case as of October 31, 2024. In calculating percentages of Common Shares owned by a particular Selling Holder, we treated as outstanding the number of Common Shares issuable upon exercise of that particular Selling Holder’s warrants or options, if any, and did not assume the exercise of any other Selling Holder’s warrants or options. The following tables do not reflect the beneficial ownership of any Common Shares issuable upon exercise of warrants or options unless such securities were exercisable or convertible within 60 days of October 31, 2024.

We have determined beneficial ownership in accordance with the rules of the SEC and the information is not necessarily indicative of beneficial ownership for any other purpose. We have included a separate column for the Common Shares issuable upon exercise of the Warrants. Unless otherwise indicated below, to our knowledge, the persons and entities named in the tables have sole voting and sole investment power with respect to all securities that they beneficially own, subject to community property laws where applicable.

Selling Holder information for each additional Selling Holder, if any, will be set forth by prospectus supplement to the extent required prior to the time of any offer or sale of such Selling Holder’s securities pursuant to this prospectus. Any prospectus supplement may add, update, substitute, or change the information contained in this prospectus, including the identity of each Selling Holder and the number of securities registered on its behalf. A Selling Holder may sell or otherwise transfer all, some or none of such securities in this offering. See “Plan of Distribution.” Unless otherwise indicated, the address of each person named below is c/o enGene Holdings Inc., 4868 Rue Levy, Suite 220, Saint-Laurent, QC H4R 2P1, Canada.

* Denotes less than 1%.

DESCRIPTION OF SHARE CAPITAL

enGene’s authorized share capital consists of an unlimited number of common shares and an unlimited number of blank cheque preferred shares, issuable in series. No preferred shares are designated, issued or outstanding.

Common Shares

We are authorized to issue an unlimited number of common shares, without par value. As of October 31, 2024, we had 50,976,676 common shares issued and outstanding, outstanding warrants to purchase an additional 8,511,968 common shares, outstanding stock options to purchase an additional 6,034,513 common shares and an agreement with a lender pursuant to which warrants for a maximum of 138,696 common shares may be issued.

Under the articles of enGene (the “Articles”), the holders of common shares are entitled to one vote for each share held on all matters submitted to a vote of the shareholders. Holders of common shares are entitled to receive ratably any dividends declared by our board of directors out of funds legally available for that purpose, subject to any preferential dividend rights of any outstanding preferred shares. Common shares have no preemptive rights, conversion rights or other subscription rights or redemption or sinking fund provisions.

In the event of enGene’s liquidation, dissolution or winding up, holders of common shares are entitled to share ratably in all assets remaining after payment of all debts and other liabilities and any liquidation preference of any outstanding preferred shares. The outstanding common shares are duly authorized, validly issued, fully paid and non-assessable.

The Articles provide that the enGene Board is staggered. While the staggered board provisions apply, at every annual general meeting and in every unanimous shareholder resolution in lieu thereof, all of the directors whose terms expire shall cease to hold office immediately before the election or appointment of directors, but are eligible for re-election or re-appointment. The shareholders entitled to vote at the annual general meeting for the election of directors may elect, or in a unanimous resolution appoint, the number of directors required to fill any vacancies created. The directors will hold office for the applicable terms contemplated in the staggered board provisions. Upon resignations of a director, the remaining directors may fill the casual vacancy resulting from such resignation for the remainder of the unexpired term.

The staggering of directors will make it more difficult for shareholders to change the composition of the enGene Board. The Articles provide that the number of directors shall be no less than three and no greater than 10, and may be fixed by the enGene Board from time to time, in accordance with the Articles.

enGene Warrants

Terms of the enGene Warrants

Each whole warrant entitles the registered holder to purchase one enGene Common Share at a price of $11.50 per share, subject to adjustment as discussed below. Pursuant to the terms of the Warrant Agreement, dated December 9, 2021, between FEAC and Continental Stock Transfer & Trust Company, as warrant agent (as subsequently amended, assigned to and assumed by the Company pursuant to the Warrant Assignment, Assumption and Amendment Agreement (as defined below), the “enGene Warrant Agreement”), a warrant holder may exercise its enGene Warrants only for a whole number of enGene Common Shares. This means only a whole enGene Warrant may be exercised at a given time by a warrant holder. The enGene Warrants will expire October 31, 2028, the date that is five years after the completion of the Business Combination, at 5:00 p.m., New York City time, or earlier upon redemption or liquidation.

enGene will not be obligated to deliver any enGene Common Shares pursuant to the exercise of a warrant and will have no obligation to settle such warrant exercise unless a registration statement under the Securities Act with respect to the enGene Common Shares underlying the enGene Warrants is then effective and a prospectus relating thereto is current, subject to enGene satisfying its obligations described below with respect to registration, or a valid exemption from registration is available. No warrant will be exercisable and enGene will not be obligated to issue an enGene Common Share upon exercise of a warrant unless the enGene Common Share issuable upon such warrant exercise has been registered, qualified or deemed to be exempt under the securities laws of the jurisdiction of residence of the registered holder of the warrants. In the event that the conditions in the two immediately preceding sentences are not satisfied with respect to a warrant, the holder of such warrant will not be entitled to exercise such warrant and such warrant may have no value and expire worthless. In no event will enGene be required to net cash settle any warrant.

enGene has filed with the SEC this registration statement for the registration, under the Securities Act, of the enGene Common Shares issuable upon exercise of the warrants, and enGene will use its commercially reasonable efforts to maintain the effectiveness of

this registration statement and a current prospectus relating to those enGene Common Shares until the enGene Warrants expire or are redeemed, as specified in the enGene Warrant Agreement; provided that if the enGene Common Shares are at the time of any exercise of a warrant not listed on a national securities exchange such that they satisfy the definition of a “covered security” under Section 18(b)(1) of the Securities Act, enGene may, at its option, require holders of enGene Warrants who exercise their enGene Warrants to do so on a “cashless basis” in accordance with Section 3(a)(9) of the Securities Act and, in the event enGene so elects, it will not be required to file or maintain in effect a registration statement, but enGene will use its commercially reasonable efforts to register or qualify the shares under applicable blue sky laws to the extent an exemption is not available.

During any period when enGene will have failed to maintain an effective registration statement covering the enGene Common Shares issuable upon exercise of the enGene Warrants, warrant holders may, until such time as there is an effective registration statement, exercise enGene Warrants on a “cashless basis” in accordance with Section 3(a)(9) of the Securities Act or another exemption, but enGene will use its commercially reasonable efforts to register or qualify the shares under applicable blue sky laws to the extent an exemption is not available. In such event, each holder would pay the exercise price by surrendering the enGene Warrants for that number of enGene Common Shares equal to the quotient obtained by dividing (x) the product of the number of enGene Common Shares underlying the enGene Warrants, multiplied by the excess of the “fair market value” (defined below) less the exercise price of the enGene Warrants by (y) the fair market value. The “fair market value” as used in this paragraph shall mean the volume weighted average price of the enGene Common Shares for the 10 trading days ending on the trading day prior to the date on which the notice of exercise is received by the warrant agent.

enGene also previously agreed that if a registration statement covering the enGene Common Shares issuable upon exercise of the enGene Warrants was not effective by the 60th day after the Closing of the Business Combination, warrant holders could, until such time as there was an effective registration statement, exercise enGene Warrants on a “cashless basis” on the same terms as set forth immediately above. During the period between the expiration of such 60-day window and the date of effectiveness of this registration statement, approximately 1,379,391 enGene Warrants were exercised on such “cashless basis”.

Redemption of enGene Warrants. Once the redeemable enGene Warrants become exercisable, enGene may redeem the outstanding enGene Warrants (except as described herein):

enGene will not redeem the enGene Warrants as described above unless a registration statement under the Securities Act covering the issuance of the enGene Common Shares issuable upon exercise of the enGene Warrants is then effective and a current prospectus relating to those enGene Common Shares is available throughout the 30-day redemption period. If and when the enGene Warrants become redeemable by enGene, enGene may exercise its redemption right even if it is unable to register or qualify the underlying securities for sale under all applicable state securities laws.

The last of the redemption criterion discussed above is designed to prevent a redemption call unless there is at the time of the call a significant premium to the warrant exercise price. If the foregoing conditions are satisfied and enGene issues a notice of redemption of the enGene Warrants, each warrant holder will be entitled to exercise his, her or its warrant prior to the scheduled redemption date. However, the price of the enGene Common Shares may fall below the $18.00 redemption trigger price (as adjusted for adjustments to the number of shares issuable upon exercise or the exercise price of a warrant as described under the heading “enGene Warrants — Redemption Procedures — Anti-dilution Adjustments”) as well as the $11.50 (for whole shares) warrant exercise price after the redemption notice is issued.

If enGene calls the enGene Warrants for redemption as described above, enGene will have the option to require any holder that wishes to exercise its enGene Warrant to do so on a “cashless basis.” In determining whether to require all holders to exercise their enGene Warrants on a “cashless basis,” enGene will consider, among other factors, its cash position, the number of enGene Warrants that are outstanding and the dilutive effect on its shareholders of issuing the maximum number of enGene Common Shares issuable upon the exercise of its enGene Warrants. If enGene takes advantage of this option, all holders of enGene Warrants would pay the exercise price by surrendering their enGene Warrants for that number of enGene Common Shares equal to the quotient obtained by dividing (x) the product of the number of enGene Common Shares underlying the enGene Warrants, multiplied by the difference between the exercise price of the enGene Warrants and the “fair market value” (defined below) by (y) the fair market value. The “fair market

value” means the 10-day average closing price as of the date on which the notice of redemption is sent to the holders of the enGene Warrants. If enGene takes advantage of this option, the notice of redemption will contain the information necessary to calculate the number of enGene Common Shares to be received upon exercise of the enGene Warrants, including the “fair market value” in such case. Requiring a cashless exercise in this manner will reduce the number of enGene Common Shares to be issued and thereby lessen the dilutive effect of a warrant redemption. We believe this feature is an attractive option to enGene if it does not need the cash from the exercise of the enGene Warrants after the Business Combination. If enGene calls its enGene Warrants for redemption and does not take advantage of this option, the FEAC Sponsor and its permitted transferees would still be entitled to exercise their enGene Warrants for cash or on a cashless basis using the same formula described above that other warrant holders would have been required to use had all warrant holders been required to exercise their enGene Warrants on a cashless basis, as described in more detail below.

No fractional enGene Common Shares will be issued upon exercise. If, upon exercise, a holder would be entitled to receive a fractional interest in a share, enGene will round down to the nearest whole number of the number of enGene Common Shares to be issued to the holder.

Redemption Procedures

A holder of a warrant may notify enGene in writing in the event it elects to be subject to a requirement that such holder will not have the right to exercise such warrant, to the extent that after giving effect to such exercise, such person (together with such person’s affiliates), to the warrant agent’s actual knowledge, would beneficially own in excess of 9.8% (or such other amount as a holder may specify) of the enGene Common Shares issued and outstanding immediately after giving effect to such exercise.

Anti-dilution Adjustments. If the number of outstanding enGene Common Shares is increased by a capitalization or share dividend payable in enGene Common Shares, or by a sub-division of common shares or other similar event, then, on the effective date of such capitalization or share dividend, sub-division or similar event, the number of enGene Common Shares issuable on exercise of each warrant will be increased in proportion to such increase in the outstanding common shares. A rights offering made to all or substantially all holders of common shares entitling holders to purchase enGene Common Shares at a price less than the “historical fair market value” (as defined below) will be deemed a share dividend of a number of enGene Common Shares equal to the product of (i) the number of enGene Common Shares actually sold in such rights offering (or issuable under any other equity securities sold in such rights offering that are convertible into or exercisable for enGene Common Shares) and (ii) one minus the quotient of (x) the price per enGene Common Share paid in such rights offering and (y) the historical fair market value. For these purposes, (i) if the rights offering is for securities convertible into or exercisable for enGene Common Shares, in determining the price payable for enGene Common Shares, there will be taken into account any consideration received for such rights, as well as any additional amount payable upon exercise or conversion and (ii) “historical fair market value” means the volume weighted average price of the enGene Common Shares as reported during the 10 trading day period ending on the trading day prior to the first date on which the enGene Common Shares trade on the applicable exchange or in the applicable market, regular way, without the right to receive such rights.

In addition, if enGene, at any time while the enGene Warrants are outstanding and unexpired, pays a dividend or makes a distribution in cash, securities or other assets to all or substantially all of the holders of enGene Common Shares on account of such enGene Common Shares (or other securities into which the enGene Warrants are convertible), other than (a) as described above, (b) any cash dividends or cash distributions which, when combined on a per share basis with all other cash dividends and cash distributions paid on the enGene Common Shares during the 365-day period ending on the date of declaration of such dividend or distribution does not exceed $0.50 (as adjusted to appropriately reflect any other adjustments and excluding cash dividends or cash distributions that resulted in an adjustment to the exercise price or to the number of enGene Common Shares issuable on exercise of each warrant) but only with respect to the amount of the aggregate cash dividends or cash distributions equal to or less than $0.50 per share, (c) to satisfy the redemption rights of the holders of enGene Common Shares in connection with the Business Combination, or (d) to satisfy the redemption rights of the holders of the enGene Common Shares in connection with a shareholder vote to amend enGene’s Articles (A) to modify the substance or timing of enGene’s obligation to provide holders of the enGene Shares the right to have their shares redeemed in connection with the Business Combination or (B) with respect to any other provision relating to the rights of holders of the enGene Common Shares.

If the number of enGene Common Shares is decreased by a consolidation, combination, reverse share sub-division or reclassification of the enGene Common Shares or other similar event, then, on the effective date of such consolidation, combination, reverse share sub-division, reclassification or similar event, the number of enGene Common Shares issuable on exercise of each warrant will be decreased in proportion to such decrease in outstanding enGene Common Shares.

Whenever the number of enGene Common Shares purchasable upon the exercise of the enGene Warrants is adjusted, as described above, the warrant exercise price will be adjusted by multiplying the warrant exercise price immediately prior to such adjustment by a fraction (x) the numerator of which will be the number of enGene Common Shares purchasable upon the exercise of the enGene Warrants immediately prior to such adjustment and (y) the denominator of which will be the number of enGene Common Shares so purchasable

immediately thereafter. The enGene Warrant Agreement provides that no adjustment to the number of enGene Common Shares issuable upon exercise of a warrant will be required until cumulative adjustments amount to 1% or more of the number of enGene Common Shares issuable upon exercise of a warrant as last adjusted. Any such adjustments that are not made will be carried forward and taken into account in any subsequent adjustment. All such carried forward adjustments will be made (i) in connection with any subsequent adjustment that (taken together with such carried forward adjustments) would result in a change of at least 1% in the number of enGene Common Shares issuable upon exercise of a warrant and (ii) on the exercise date of any warrant.

In case of any reclassification or reorganization of the outstanding enGene Common Shares (other than those described above or that solely affects the par value of such enGene Common Shares), or in the case of any merger or consolidation of enGene with or into another corporation (other than a consolidation or merger in which enGene is the continuing corporation and that does not result in any reclassification or reorganization of the outstanding enGene Common Shares), or in the case of any sale or conveyance to another corporation or entity of the assets or other property of enGene as an entirety or substantially as an entirety in connection with which it is dissolved, the holders of the enGene Warrants will thereafter have the right to purchase and receive, upon the basis and upon the terms and conditions specified in the enGene Warrants and in lieu of enGene Common Shares immediately theretofore purchasable and receivable upon the exercise of the rights represented thereby, the kind and amount of enGene Common Shares or other securities or property (including cash) receivable upon such reclassification, reorganization, merger or consolidation, or upon a dissolution following any such sale or transfer, that the holder of the enGene Warrants would have received if such holder had exercised their enGene Warrants immediately prior to such event.

The enGene Warrants were issued in registered form under a warrant agreement between Continental Stock Transfer & Trust Company, as warrant agent, and enGene. The enGene Warrant Agreement provides that the terms of the enGene Warrants may be amended without the consent of any holder for the purpose of (i) curing any ambiguity or correcting any mistake, including to conform the provisions of the enGene Warrant Agreement to the description of the terms of the EnGene Warrants and the EnGene Warrant Agreement set forth in the prospectus for FEAC’s IPO, or defective provision (ii) amending the provisions relating to cash dividends on common shares as contemplated by and in accordance with the enGene Warrant Agreement, (iii) providing for the delivery of certain alternative issuances in the case of certain reorganizations or other events or (iv) adding or changing any provisions with respect to matters or questions arising under the enGene Warrant Agreement as the parties to the enGene Warrant Agreement may deem necessary or desirable and that the parties deem to not adversely affect the rights of the registered holders of the enGene Warrants, provided that the approval by the holders of at least 65% of the then-outstanding enGene Warrants is required to make any change that adversely affects the interests of the registered holders. You should review a copy of the enGene Warrant Agreement and the Warrant Assignment, Assumption and Amendment Agreement, dated as of October 30, 2023, among FEAC, enGene Inc., enGene and Continental Stock Transfer & Trust Company (the “Warrant Assignment, Assumption and Amendment Agreement”), which is filed as an exhibit to the Company’s Annual Report on Form 10-K that is incorporated by reference into the registration statement of which this prospectus is a part, for a complete description of the terms and conditions applicable to the enGene Warrants.

The warrant holders do not have the rights or privileges of holders of enGene Common Shares and any voting rights until they exercise their enGene Warrants and receive enGene Common Shares. After the issuance of enGene Common Shares upon exercise of the enGene Warrants, each holder will be entitled to one vote for each share held of record on all matters to be voted on by shareholders.

If, upon exercise of the enGene Warrants, a holder would be entitled to receive a fractional interest in a share, enGene will, upon exercise, round down to the nearest whole number the number of enGene Common Shares to be issued to the warrant holder.

enGene has agreed that, subject to applicable law, any action, proceeding or claim against enGene arising out of or relating in any way to the enGene Warrant Agreement or the Warrant Assignment, Assumption and Amendment Agreement will be brought and enforced in the courts of the State of New York or the United States District Court for the Southern District of New York, and enGene irrevocably submit to such jurisdiction, which jurisdiction will be the exclusive forum for any such action, proceeding or claim. This provision applies to claims under the Securities Act but does not apply to claims under the Exchange Act or any claim for which the federal district courts of the United States of America are the sole and exclusive forum.

MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS

The following discussion is a summary of the material U.S. federal income tax considerations generally applicable to the ownership and disposition of our Common Shares and Warrants, which we refer to collectively as our securities, by U.S. Holders (as defined herein). This summary is based upon U.S. federal income tax law as of the date of this prospectus, which is subject to change or differing interpretations, possibly with retroactive effect. This summary does not discuss all aspects of U.S. federal income taxation that may be important to particular investors in light of their individual circumstances, including investors subject to special tax rules (e.g., financial institutions, insurance companies, broker-dealers, tax-exempt organizations (including private foundations), taxpayers subject to the rules of Section 451(b) due to their use of certain financial statements, taxpayers that have elected mark-to-market accounting, S corporations, regulated investment companies, real estate investment trusts, passive foreign investment companies, controlled foreign corporations, investors that will hold Common Shares or Warrants as part of a straddle, hedge, conversion, or other integrated transaction for U.S. federal income tax purposes, or investors that have a functional currency other than the U.S. dollar), all of whom may be subject to tax rules that differ materially from those summarized below. In addition, this summary does not discuss other U.S. federal non-income tax considerations (e.g., estate or gift tax), any state, local, or non-U.S. tax considerations or the Medicare tax or alternative minimum tax (including the corporate alternative minimum tax imposed with respect to financial statement income). In addition, this summary is limited to investors that will hold our securities as “capital assets” within the meaning of Section 1221 (generally, property held for investment) under the Internal Revenue Code of 1986, as amended, (the “Code”). No ruling from the Internal Revenue Service, (the “IRS”) has been or will be sought regarding any matter discussed herein. No assurance can be given that the IRS would not assert, or that a court would not sustain a position contrary to any of the tax aspects set forth below.

For purposes of this summary, a “U.S. Holder” is a beneficial holder of securities who or that, for U.S. federal income tax purposes is:

This discussion is based on the Code, proposed, temporary and final Treasury regulations promulgated under the Code, judicial and administrative interpretations thereof, the income tax treaty between the United States and Canada (the “Treaty”) and practices of the U.S. Internal Revenue Service (the “IRS”), all as of the date hereof and all of which are subject to differing interpretations. All of the foregoing is subject to change, which change could apply retroactively and could affect the tax considerations described herein.

If a partnership (including an entity or arrangement treated as a partnership for U.S. federal income tax purposes) holds our securities, the tax treatment of a partner, member or other beneficial owner in such partnership will generally depend upon the status of the partner, member or other beneficial owner, the activities of the partnership and certain determinations made at the partner, member or other beneficial owner level. If you are a partner, member or other beneficial owner of an entity or arrangement treated as a partnership for U.S. federal income tax purposes and that holds our securities, you are urged to consult your tax advisor regarding the tax consequences of the ownership and disposition of our securities.

THIS DISCUSSION OF U.S. FEDERAL INCOME TAX CONSIDERATIONS IS FOR GENERAL INFORMATION PURPOSES ONLY, DOES NOT PURPORT TO BE A COMPREHENSIVE ANALYSIS OR DESCRIPTION OF ALL POTENTIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS, AND IS NOT TAX ADVICE. PROSPECTIVE HOLDERS SHOULD CONSULT THEIR TAX ADVISORS CONCERNING THE U.S. FEDERAL INCOME TAX CONSEQUENCES TO THEM OF OWNING AND DISPOSING OF OUR SECURITIES, AS WELL AS THE APPLICATION OF ANY STATE, LOCAL AND NON-U.S. INCOME, ESTATE AND OTHER TAX CONSIDERATIONS.

Taxation of Distributions

General

Subject to the passive foreign investment company (“PFIC”) and foreign currency rules discussed below, if we pay distributions to U.S. Holders of Common Shares, such distributions will generally constitute dividends for U.S. federal income tax purposes to the extent paid from our current or accumulated earnings and profits, as determined under U.S. federal income tax principles. Distributions in excess of our current and accumulated earnings and profits as so determined will constitute a return of capital that will be applied against and reduce (but not below zero) the U.S. Holder’s adjusted tax basis in our Common Shares. Any remaining excess will be treated as gain realized on the sale or other disposition of the Common Shares and will be treated as described under “—Gain or Loss on Sale, Taxable Exchange or Other Taxable Disposition of Common Shares” below. Because enGene may not maintain calculations of earnings and profits as determined under U.S. federal income tax principles, it is expected that the full amount of distributions (if any) paid by enGene will be reported as dividends for U.S. federal income tax purposes.

With certain exceptions (including dividends treated as investment income for purposes of investment interest deduction limitations), and provided (i) the Common Shares are readily tradable on an established securities market in the United States or enGene is eligible for the benefits of the Treaty, (ii) enGene is not treated as a PFIC with respect to such U.S. Holder for the taxable year in which the dividend was paid nor for the preceding taxable year and (iii) certain holding period requirements are met, dividends we pay to a non-corporate U.S. Holder will generally constitute “qualified dividends” that will be subject to tax at the maximum tax rate accorded to long-term capital gains.

For purposes of the foreign tax credit rules, dividends will be treated as foreign-source income. As discussed below under “Certain Canadian Federal Income Tax Considerations — Dividends on Common Shares,” dividends paid by enGene will be subject to Canadian withholding tax. For U.S. federal income tax purposes, the amount of dividend income will include any amounts withheld in respect of Canadian taxes. Subject to applicable limitations that vary depending upon a U.S. Holder’s particular circumstances and the discussion below regarding certain Treasury regulations, Canadian taxes withheld from dividend payments (at a rate not exceeding the applicable rate provided in the Treaty with respect to a U.S. Holder eligible for the benefits of the Treaty) generally will be creditable against such U.S. Holder’s U.S. federal income tax liability. The rules governing foreign tax credits are complex. For example, Treasury regulations provide that, in the absence of an election to apply the benefits of an applicable income tax treaty, in order for non-U.S. income taxes to be creditable, the relevant non-U.S. income tax rules must be consistent with certain U.S. federal income tax principles, and we have not determined whether the Canadian income tax system meets these requirements. A recent IRS notice indicated the Treasury Department and the IRS are considering amendments to these Treasury regulations and provided some temporary relief from certain of their provisions, and such relief was recently extended. U.S. Holders should consult their tax advisors regarding the creditability of Canadian taxes in their particular circumstances. In lieu of claiming a credit, a U.S. Holder may be able to elect to deduct non-U.S. income taxes, including Canadian taxes, in computing such U.S. Holder’s taxable income, subject to applicable limitations. An election to deduct creditable non-U.S. taxes instead of claiming foreign tax credits applies to all creditable non-U.S. taxes paid or accrued in the taxable year.

Distributions in Non-U.S. Currency

Dividends paid in non-U.S. currency will be included in the gross income of a U.S. Holder in a U.S. dollar amount calculated by reference to a spot market exchange rate in effect on the date that the dividends are received by the U.S. Holder, regardless of whether such foreign currency is in fact converted into U.S. dollars on such date. Such U.S. Holder will have a tax basis for United States federal income tax purposes in the foreign currency received equal to that U.S. dollar value. If such dividends are converted into U.S. dollars on the date of receipt, a U.S. Holder generally should not be required to recognize foreign currency gain or loss in respect thereof. If the foreign currency so received is not converted into U.S. dollars on the date of receipt, such U.S. Holder will have a basis in the foreign currency equal to its U.S. dollar value on the date of receipt. Any gain or loss on a subsequent conversion or other disposition of the foreign currency generally will be treated as ordinary income or loss to such U.S. Holder and generally will be income or loss from sources within the United States for foreign tax credit limitation purposes. U.S. Holders should consult their own tax advisors regarding the treatment of foreign currency gain or loss, if any, on any foreign currency received by a U.S. Holder that are converted into U.S. dollars on a date subsequent to receipt.

Gain or Loss on Sale, Taxable Exchange or Other Taxable Disposition of Common Shares

Subject to the PFIC rules discussed below, a U.S. Holder will recognize gain or loss on the sale, taxable exchange or other taxable disposition of our Common Shares. Any such gain or loss will be capital gain or loss, and will be long-term capital gain or loss if the U.S. Holder’s holding period for the Common Shares so disposed of exceeds one year. The amount of gain or loss recognized will generally be equal to the difference between (1) the sum of the amount of cash and the fair market value of any property received in such disposition and (2) the U.S. Holder’s adjusted tax basis in its Common Shares so disposed of. A U.S. Holder’s adjusted tax basis in its Common Shares will generally equal the U.S. Holder’s acquisition cost therefor (which, in the case of Common Shares received

upon exercise of a Warrant, will be the U.S. Holder’s initial basis in such Common Shares, as discussed below under the heading “—Exercise of a Warrant”) less any prior distributions in respect of such Common Shares treated as a return of capital, as discussed above. The deductibility of capital losses is subject to limitations. This gain or loss generally will be treated as U.S. source gain or loss.

Exercise of a Warrant

Subject to the PFIC rules discussed below and except as discussed below with respect to the cashless exercise of a Warrant, a U.S. Holder will not recognize gain or loss upon the exercise of a Warrant. The U.S. Holder’s tax basis in a Common Share received upon exercise of a Warrant will generally be an amount equal to the sum of the U.S. Holder’s initial investment in the Warrant and the exercise price of such Warrant. It is unclear whether a U.S. Holder’s holding period for the Common Share received upon exercise of the Warrant would commence on the date of exercise of the Warrant or the day following the date of exercise of the Warrant; however, in either case the holding period will not include the period during which the U.S. Holder held the Warrant.

The tax consequences of a cashless exercise of a Warrant are not clear under current tax law. Subject to the PFIC rules discussed below, such a cashless exercise may be nontaxable, either because the exercise is not a realization event or because the exercise is treated as a recapitalization for U.S. federal income tax purposes. In either situation, a U.S. Holder’s tax basis in the Common Shares received would generally equal the holder’s tax basis in the Warrant. If the cashless exercise were treated as not being a realization event, it is unclear whether a U.S. Holder’s holding period for the Common Shares would commence on the date of exercise of the Warrant or the day following the date of exercise of the Warrant. If, however, the cashless exercise were treated as a recapitalization, the holding period of the Common Shares would include the holding period of the Warrant.

It is also possible that a cashless exercise could be treated as a taxable exchange in which gain or loss is recognized. In such event, a U.S. Holder would be deemed to have surrendered a number of Warrants having a value equal to the exercise price. The U.S. Holder would recognize capital gain or loss in an amount equal to the difference between the fair market value of the Common Shares represented by the Warrants deemed surrendered and the U.S. Holder’s tax basis in the Warrants deemed surrendered. In this case, a U.S. Holder’s tax basis in the Common Shares received would equal the sum of the U.S. Holder’s initial investment in the Warrants exercised and the exercise price of such Warrants. It is unclear whether a U.S. Holder’s holding period for the Common Shares would commence on the date of exercise of the Warrant or the day following the date of exercise of the Warrant.

Due to the absence of authority on the U.S. federal income tax treatment of a cashless exercise, including when a U.S. Holder’s holding period would commence with respect to the Common Shares received, there can be no assurance which, if any, of the alternative tax consequences and holding periods described above would be adopted by the IRS or a court of law. Accordingly, U.S. Holders are urged to consult their tax advisors regarding the tax consequences of a cashless exercise.

Subject to the PFIC rules discussed below, if Warrants are redeemed for cash or we purchase Warrants in an open-market transaction, such redemption or purchase generally will be treated as a taxable disposition to the U.S. Holder, taxed as described below.

Sale, Exchange, Redemption or Expiration of a Warrant

Subject to the PFIC rules discussed below, upon a sale, exchange (other than by exercise), redemption (other than a redemption for Common Shares), or expiration of a Warrant, a U.S. Holder will recognize taxable gain or loss in an amount equal to the difference between (1) the amount realized upon such sale, exchange, redemption or expiration and (2) the U.S. Holder’s tax basis in the Warrant. Such gain or loss will generally be treated as long-term capital gain or loss if the Warrant has been held by the U.S. Holder for more than one year at the time of such sale, exchange, redemption, or expiration. If a Warrant is allowed to lapse unexercised, a U.S. Holder generally will recognize a capital loss equal to such holder’s tax basis in the Warrant. The deductibility of capital losses is subject to certain limitations.

A redemption of Warrants for Common Shares described in this prospectus under “Description of Securities — enGene Warrants” is expected to be treated as a “recapitalization” within the meaning of Section 368(a)(1)(E) of the Code. Accordingly, a U.S. Holder should not recognize any gain or loss on the redemption of Warrants for Common Shares. A U.S. Holder’s aggregate tax basis in the Common Shares received in the redemption should equal such U.S. Holder’s aggregate tax basis in the Warrants redeemed and the U.S. Holder’s holding period for the Common Shares received in redemption of its Warrants should include such U.S. Holder’s holding period for the surrendered Warrants.

Possible Constructive Distributions

The terms of each Warrant provide for an adjustment to the number of Common Shares for which the Warrant may be exercised or to the exercise price of the Warrant in certain events, as discussed in the section of this prospectus captioned “Description of Securities

— enGene Warrants.” An adjustment which has the effect of preventing dilution is generally not a taxable event. Nevertheless, a U.S. Holder of Warrants would be treated as receiving a constructive distribution from us if, for example, the adjustment increases the holder’s proportionate interest in our assets or earnings and profits (e.g., through an increase in the number of Common Shares that would be obtained upon exercise) as a result of a distribution of cash to the holders of Common Shares which is taxable to such holders as a distribution. Such constructive distribution would be subject to tax as described under “—Taxation of Distributions” in the same manner as if such U.S. Holder received a cash distribution from us in an amount equal to the fair market value of such increased interest.

Passive Foreign Investment Company Rules

The treatment of U.S. Holders of enGene Common Shares or enGene Warrants could be materially different from that described above due to the application of the PFIC rules.

In general and as relevant here, a non-U.S. corporation is a PFIC for U.S. federal income tax purposes for any taxable year in which (i) 50% or more of the value of its assets (generally determined on the basis of a weighted quarterly average) including its pro rata share of the assets of any corporation in which it is considered to own at least 25% of the shares by value, consists of assets that produce, or are held for the production of, passive income, or (ii) 75% or more of its gross income, including its pro rata share of the gross income of any corporation in which it is considered to own at least 25% of the shares by value, consists of passive income. Passive income generally includes dividends, interest, rents and royalties (other than rents or royalties derived from the active conduct of a trade or business) and gains from the disposition of passive assets. Cash and cash equivalents are generally passive assets. The value of goodwill will generally be treated as an active or passive asset based on the nature of the income produced in the activity to which the goodwill is attributable.

enGene’s PFIC status for any taxable year is a factual annual determination that can be made only after the end of that year and will depend on the composition of enGene’s income and assets and the value of its assets from time to time and, for the taxable year in which the Business Combination occurred, the composition of the income and assets, and the value of the assets, of FEAC, its predecessor for this purpose. The value of enGene’s assets includes the value of its goodwill and other intangible assets not shown on its financial statements, which may be determined, in large part, by reference to the market price of the enGene Common Shares from time to time, which is subject to change and may be particularly volatile while the business is at the pre-commercialization stage. In addition, prior to the commercialization of any of enGene’s drug candidates its income may be primarily passive. Accordingly, there is a significant risk that enGene will be a PFIC for its current or any future taxable year.

If enGene is a PFIC for any taxable year (or portion thereof) that is included in the holding period of a U.S. Holder of enGene Common Shares and the U.S. Holder did not make any of the applicable PFIC elections discussed below, such U.S. Holder generally will be subject to special and adverse rules with respect to (i) any gain recognized by the U.S. Holder on the sale or other disposition of its enGene Common Shares and (ii) any “excess distribution” made to the U.S. Holder (generally, any distributions to such U.S. Holder during a taxable year of the U.S. Holder to the extent greater than 125% of the average annual distributions received by such U.S. Holder in respect of the enGene Common Shares during the three preceding taxable years of such U.S. Holder or, if shorter, such U.S. Holder’s holding period for the enGene Common Shares).

Under these rules (the “interest charge rules”):

It is not entirely clear how various aspects of the PFIC rules apply to the enGene Warrants. Under proposed Treasury regulations relating to PFICs (the “proposed Treasury regulations”), which have a retroactive effective date, the PFIC rules may apply to rights to acquire shares of a PFIC as if they were shares, and thus could apply to dispositions (other than exercises) of the enGene Warrants. As a result, under the proposed Treasury regulations, if a U.S. Holder sells or otherwise disposes of such enGene Warrants (other than upon exercise of such enGene Warrants) and enGene was a PFIC at any time during the U.S. Holder’s holding period of such enGene Warrants, any gain recognized generally would be treated as an excess distribution, taxed as described above.

PFIC Elections

In general, if enGene is a PFIC, a U.S. Holder may avoid the adverse PFIC tax consequences under the interest charge rules described above in respect of enGene Common Shares, but not enGene Warrants (a) by making or having made a qualified electing fund (“QEF”) election or a mark-to-market election for the first taxable year for which enGene is or was a PFIC and in which such U.S. Holder held (or was deemed to hold) such enGene Common Shares and maintain such election or (b) by making and maintaining a QEF election along with an applicable purging election (collectively, the “PFIC Elections”).

QEF and Purging Elections

As a result of making and maintaining a timely and valid QEF election (if eligible to do so), a U.S. Holder of enGene Common Shares must include in income such U.S. Holder’s pro rata share of enGene’s net capital gains (as long-term capital gain) and other earnings and profits (as ordinary income), on a current basis, whether or not distributed. A U.S. Holder generally may make a separate election to defer the payment of taxes on undistributed income inclusions under the QEF rules, but if deferred, any such taxes will be subject to an interest charge. A subsequent distribution of such earnings and profits that were previously included in income should generally not be taxable as a dividend to such U.S. Holder. The tax basis of a U.S. Holder’s shares in a PFIC with respect to which a QEF election has been made will be increased by amounts that are included in income, and decreased by amounts distributed but not taxed as dividends, under the above rules.

A U.S. Holder may not make a QEF election with respect to its enGene Warrants. If a U.S. Holder that exercises enGene Warrants properly makes and maintains a QEF election with respect to the newly acquired enGene Common Shares (or has previously made a QEF election with respect to its enGene Common Shares), the QEF election will apply to the newly acquired enGene Common Shares. Notwithstanding a QEF election, the adverse tax consequences relating to PFIC shares under the interest charge rules described above, adjusted to take into account the current income inclusions resulting from the QEF election, may continue to apply with respect to the enGene Common Shares (because under the proposed Treasury regulations, the enGene Common Shares generally would be deemed to have a holding period for purposes of the interest charge rules that includes the period the U.S. Holder held the corresponding enGene Warrants), unless the U.S. Holder made a purging election under the PFIC rules.

Under the type of purging election most likely relevant, the U.S. Holder will be deemed to have sold such shares at their fair market value and any gain recognized on such deemed sale will be treated as an excess distribution, as described above. As a result of this election, the U.S. Holder will have additional basis (to the extent of any gain recognized in the deemed sale) and, for purposes of the interest charge rules, a new holding period in such holder’s enGene Common Shares. Because after the purging election takes effect the QEF election will be in effect for the entirety of the new holding period, the interest charge rules will not apply with respect to the enGene Common Shares.

In the absence of a purging election, a U.S. Holder would be treated for purposes of the interest charge rules as if the U.S. Holder held such enGene Common Shares and enGene Warrants for a period that includes a period when the QEF election was not in effect. U.S. Holders are urged to consult their tax advisors regarding the application of the purging elections rules to their particular circumstances.

The QEF election is made on a shareholder-by-shareholder basis and, once made, can be revoked only with the consent of the IRS. A U.S. Holder generally makes a QEF election by attaching a completed IRS Form 8621 (Information Return by a Shareholder of a Passive Foreign Investment Company or Qualified Electing Fund), including the information provided in a PFIC Annual Information Statement from enGene, to a timely filed U.S. federal income tax return for the tax year to which the election relates. In the event that enGene determines that enGene is a PFIC for U.S. federal income tax purposes for any taxable year, enGene will, upon request of a holder of enGene Shares, provide a PFIC Annual Information Statement to such holder. Retroactive QEF elections generally may be made only by filing a protective statement with such federal income tax return and if certain other conditions are met or with the consent of the IRS. U.S. Holders are urged to consult their tax advisors regarding the availability and tax consequences of a retroactive QEF election under their particular circumstances.

Mark-to-Market Election

As an alternative to a QEF election, if a U.S. Holder owns shares in a company that is a PFIC and the shares are “regularly traded” on a “qualified exchange,” such U.S. Holder could make a mark-to-market election that would result in tax treatment different from that under the interest charge rules described above. The enGene Common Shares will be treated as regularly traded for any calendar year

in which more than a de minimis quantity of the enGene Common Shares are traded on a qualified exchange on at least 15 days during each calendar quarter. Nasdaq, where the enGene Common Shares are listed, is a qualified exchange for this purpose.

Such electing U.S. Holder generally will include for each of its taxable years as ordinary income the excess, if any, of the fair market value of its enGene Common Shares at the end of such year over its adjusted basis in its enGene Common Shares. The U.S. Holder also will recognize an ordinary loss in respect of the excess, if any, of its adjusted basis of its enGene Common Shares over the fair market value of its enGene Common Shares at the end of its taxable year (but only to the extent of the net amount of previously included in income as a result of the mark-to-market election). The U.S. Holder’s basis in its enGene Common Shares will be adjusted to reflect any such income or loss amounts. Any gain recognized on a sale or other taxable disposition of its enGene Common Shares will be treated as ordinary income, and any loss will be treated as an ordinary loss (but only to the extent of the net amount previously included in income as a result of the mark-to-market election, with any excess treated as a capital loss). If a U.S. Holder makes the mark-to-market election, distributions paid on enGene Common Shares will be treated as discussed under “— Taxation of Distributions” above. A mark-to-market election may not be made with respect to the enGene Warrants.

If made, a mark-to-market election will be effective for the taxable year for which the election is made and for all subsequent taxable years in which enGene is a PFIC, unless the enGene Common Shares cease to qualify as “regularly traded” on a “qualified exchange” for purposes of the PFIC rules or the IRS consents to the revocation of the election. U.S. Holders are urged to consult their tax advisors regarding the availability and tax consequences of a mark-to-market election with respect to enGene Common Shares under their particular circumstances (including the possible recognition of income or gain under the PFIC interest charge rules in the case that the mark-to-market election is not made for the first taxable year in which the U.S. Holders own (or are treated as owning) the enGene Common Shares).

Other PFIC Rules

If enGene is a PFIC and, at any time, has a non-U.S. subsidiary that is a PFIC, a U.S. Holder generally would be deemed to own a proportionate amount of the shares of such lower-tier PFIC and generally could incur liability for the deferred tax and interest charge under the interest charge rules described above if enGene receives an excess distribution from, or disposes of all or part of its interest in, the lower-tier PFIC, or the U.S. Holder otherwise was deemed to have disposed of an interest in the lower-tier PFIC, in each case as if the U.S. Holder held such shares directly, even though the U.S. Holder will not receive any proceeds of that distribution or disposition. A mark-to-market election cannot be made with respect to a lower-tier PFIC. U.S. Holders are urged to consult their tax advisors regarding the tax issues raised by lower-tier PFICs.

A U.S. Holder that owns (or is deemed to own) shares in a PFIC during any taxable year of the U.S. Holder may have to file an IRS Form 8621 (whether or not a QEF or mark-to-market election is made) and to provide such other information as may be required by the U.S. Treasury Department. Failure to do so, if required, will extend the statute of limitations applicable to such U.S. Holder until such required information is furnished to the IRS.

THE RULES DEALING WITH PFICS ARE VERY COMPLEX AND ARE IMPACTED BY VARIOUS FACTORS IN ADDITION TO THOSE DESCRIBED ABOVE. ALL U.S. HOLDERS ARE URGED TO CONSULT THEIR TAX ADVISORS REGARDING THE CONSEQUENCES TO THEM OF THE PFIC RULES, INCLUDING, WITHOUT LIMITATION, WHETHER A QEF ELECTION (OR A QEF ELECTION ALONG WITH A PURGING ELECTION), A MARK-TO-MARKET ELECTION, OR ANY OTHER ELECTION IS AVAILABLE AND THE CONSEQUENCES TO THEM OF ANY SUCH ELECTION, THE APPLICATION OF THE PFIC RULES TO WARRANTS, AND THE IMPACT OF ANY PROPOSED OR FINAL PFIC TREASURY REGULATIONS.

Information Reporting and Backup Withholding

Dividend payments (including constructive dividends) with respect to enGene Common Shares and proceeds from the sale, exchange or redemption of enGene Common Shares or enGene Warrants may be subject to information reporting to the IRS and possible United States backup withholding. Backup withholding (currently at a rate of 24 percent) will not apply, however, to a U.S. Holder who furnishes a correct taxpayer identification number (generally on an IRS Form W-9 provided to the relevant paying agent) and makes other required certifications, or who is otherwise exempt from backup withholding and establishes such exempt status if required to do so. Any amounts withheld under the backup withholding rules may be allowed as a refund or credit against a holder’s U.S. federal income tax liability, if any, provided the required information is timely furnished to the IRS.

In addition, certain U.S. Holders holding specified foreign financial assets with an aggregate value in excess of the applicable dollar thresholds are required to report information to the IRS relating to enGene Common Shares or the non-U.S. financial accounts through which they are held, subject to certain exceptions (including an exception for enGene Common Shares held in accounts

maintained by U.S. financial institutions), by attaching a complete IRS Form 8938 (Statement of Specified Foreign Financial Assets) with their tax return for each year in which they hold enGene Common Shares.

CERTAIN CANADIAN FEDERAL INCOME TAX CONSIDERATIONS

The following is a general summary of certain Canadian federal income tax considerations under the Income Tax Act (Canada) and the regulations thereunder (collectively, the “Tax Act”) generally applicable to the holding and disposition of Common Shares and Warrants (collectively, the “Securities”).

Comment is restricted to beneficial owners (other than the Sponsor) of Securities each of whom, at all relevant times, for purposes of the Tax Act and any applicable income tax treaty or convention, (a) holds such Securities as capital property, (b) deals at arm’s length with the Company, (c) is not affiliated with the Company, (d) is neither resident in Canada nor deemed to be resident in Canada, (e) does not use or hold (and is not deemed to use or hold) the Securities in the course of carrying on, or otherwise in connection with, a business in Canada, (f) acquires the Securities pursuant to this prospectus, and (g) has not entered into a “derivative forward agreement” (as defined in the Tax Act) with respect to the Securities (a “Non-Canadian Resident Holder”).

Special rules, which are not discussed in this summary, may apply to a Non-Canadian Resident Holder that is an “authorized foreign bank” as defined in the Tax Act, or an insurer carrying on business in Canada and elsewhere. Such Non-Canadian Resident Holders should consult their own tax advisors with respect to an investment in the Securities.

Generally, a Non-Canadian Resident Holder’s Common Shares or Warrants will be considered to be capital property of such holder provided that the Non-Canadian Resident Holder of trading in or dealing in securities, did not acquire, hold, or dispose of the Common Shares or Warrants in one or more transactions considered to be an adventure or concern in the nature of trade (i.e., speculation) and does not hold the Common Shares or Warrants in the course of carrying on a business.

This summary assumes that, at all relevant times, enGene Holdings Inc. is a resident of Canada for purposes of the Tax Act and any applicable income tax treaty or convention.

This summary is based on the facts set out in this prospectus, the provisions of the Tax Act in force as of the date prior to the date hereof, the Canada-United States Tax Convention (1980) as amended (the “Treaty”) and counsel’s understanding of the current administrative policies and assessing practices of the Canada Revenue Agency (the “CRA”) published in writing by the CRA prior to the date hereof. This summary takes into account all specific proposals to amend the Tax Act publicly announced by or on behalf of the Minister of Finance (Canada) prior to the date hereof (the “Tax Proposals”) and assumes that the Tax Proposals will be enacted in the form proposed, although no assurance can be given that the Tax Proposals will be enacted in their current form or at all.

This summary does not otherwise take into account or anticipate any changes in law or in the administrative policies or assessing practices of the CRA, whether by way of judicial, legislative or governmental decision or action. This summary is not exhaustive of all possible Canadian federal income tax considerations and does not take into account other federal or any provincial, territorial or foreign income tax legislation or considerations, which may differ materially from those described in this summary.

This summary is of a general nature only and is not, and is not intended to be, and should not be construed to be, legal or tax advice to any particular Non-Canadian Resident Holder, and no representations concerning the tax consequences to any particular Non-Canadian Resident Holder are made. The tax consequences of acquiring, holding and disposing of the Securities will vary according to the Non-Canadian Resident Holder’s particular circumstances. Non-Canadian Resident Holders should consult their own tax advisors regarding the tax considerations applicable to them having regard to their particular circumstances.

Currency Conversion

In general, for purposes of the Tax Act, all amounts relating to the acquisition, holding or disposition of Securities must be converted into Canadian dollars based on the relevant exchange rate as determined in accordance with the Tax Act.

Adjusted Cost Base of Common Shares

The adjusted cost base to a Non-Canadian Resident Holder of a Common Share acquired pursuant to this prospectus will be determined by averaging the cost of that Common Share with the adjusted cost base (determined immediately before the acquisition of the Common Share) of all other Common Shares held as capital property by the Non-Canadian Resident Holder immediately prior to such acquisition.

Exercise of Warrants

No gain or loss will be realized by a Non-Canadian Resident Holder of a Warrant upon the exercise of such Warrant. When a Warrant is exercised, the Non-Canadian Resident Holder’s cost of the Common Share acquired thereby will be equal to the adjusted cost base of the Warrant to such Non-Canadian Resident Holder, plus the amount paid on the exercise of the Warrant. The Non-Canadian Resident Holder’s adjusted cost base of the Common Share so acquired will be determined by averaging the cost of such Common Share with the adjusted cost base (determined immediately before the acquisition of the Common Share) of all other Common Shares held as capital property by the Non-Canadian Resident Holder immediately prior to such acquisition. A “cashless exercise” of a Warrant pursuant to its terms may result in a disposition of the Warrant, which will be subject to the tax treatment described below under “Disposition of Securities”. Non-Canadian Resident Holders should consult their own tax advisors with respect to the tax consequences to them of a “cashless exercise” of Warrants.

Dividends on Common Shares

Dividends paid or credited (or deemed to be paid or credited) on a Common Share to a Non-Canadian Resident Holder by enGene Holdings Inc. will generally be subject to Canadian withholding tax at the rate of 25%, subject to a reduction of such rate under the terms of an applicable income tax treaty or convention. For example, in the case of a Non-Canadian Resident Holder who is a resident of the United States for purposes of the Treaty, who is the beneficial owner of the dividend, and who qualifies for full benefits of the Treaty, the rate of such withholding tax will generally be reduced to 15% (or 5% if the beneficial owner of such dividend is a corporation that owns at least 10% of the voting stock of enGene Holdings Inc.). Non-Canadian Resident Holders are urged to consult their own tax advisors to determine their entitlement to relief under an applicable income tax treaty or convention.

Dispositions of Securities

A Non-Canadian Resident Holder generally will not be subject to tax under the Tax Act in respect of a capital gain, or entitled to deduct any capital loss, realized on the disposition or deemed disposition of a Security (other than a disposition of Common Shares to enGene Holdings Inc., which may result in a deemed dividend, unless purchased by enGene Holdings Inc. in the open market in the manner in which Common Shares are normally purchased by any member of the public in the open market, in which case other considerations may arise) unless the Security constitutes (or is deemed to constitute) “taxable Canadian property” of such Non-Canadian Resident Holder for purposes of the Tax Act at the time of disposition, and the gain is not exempt from tax pursuant to the terms of an applicable income tax treaty or convention.

Provided the Common Shares are listed on a “designated stock exchange” as defined in the Tax Act (which currently includes the Nasdaq) at the time of disposition, the Securities generally will not constitute taxable Canadian property of a Non-Canadian Resident Holder unless, at any time during the 60-month period immediately preceding the disposition the following two conditions are met concurrently: (i) 25% or more of the issued shares of any class or series of the capital stock of enGene Holdings Inc. were owned by or belonged to one or any combination of (a) the Non-Canadian Resident Holder, (b) persons with whom the Non-Canadian Resident Holder did not deal at arm’s length, and (c) partnerships in which the Non-Canadian Resident Holder or a person described in (b) holds a membership interest directly or indirectly through one or more partnerships; and (ii) more than 50% of the fair market value of the Common Shares was derived, directly or indirectly, from one or any combination of (a) real or immovable property situated in Canada, (b) “Canadian resource property” (as defined in the Tax Act), (c) “timber resource property” (as defined in the Tax Act), or (d) options in respect of, interests in, or for civil law rights in, such properties, whether or not such property exists. Notwithstanding the foregoing, a Security may be deemed to be taxable Canadian property in certain circumstances specified in the Tax Act.

If the Securities are taxable Canadian property of a Non-Canadian Resident Holder, any capital gain realized on the disposition or deemed disposition of such Security may not be subject to tax under the Tax Act pursuant to the terms of an applicable income tax treaty or convention. Non-Canadian Resident Holders whose Securities may constitute taxable Canadian property should consult their own tax advisors.

PLAN OF DISTRIBUTION

We are registering for the offer and sale from time to time by the Selling Holders of up to: (i) 5,693,002 of our Common Shares and 2,686,558 Warrants to purchase Common Shares issued in connection with the 2023 PIPE Financing to the 2023 PIPE Investors, including FEAC Sponsor and an affiliate; (ii) 13,237,012 Common Shares and 3,602,640 Warrants held by certain Selling Holders, including FEAC Sponsor, party to the Registration Rights Agreement, (iii) 6,289,198 Common Shares that may be obtained by the Selling Holders upon the exercise of the Warrants described in (i) and (ii) above, (iv) 14,902,269 of our Common Shares issued in connection with the February 2024 PIPE Financing and (v) 6,758,311 of our Common Shares issued in connection with the October 2024 PIPE Financing. Certain Selling Holders acquired their securities through more than one of the above.

We are also registering the issuance by us of up to an aggregate of 8,511,968 Common Shares upon the exercise of a like number of Warrants consisting of (i) the 6,289,198 Warrants described above following their public resale by the Selling Holders and (ii) 2,222,770 additional outstanding Warrants.

We will not receive any of the proceeds from the sale of the securities by the Selling Holders. We will receive proceeds from Warrants exercised in the event that such Warrants are exercised for cash. The aggregate proceeds to the Selling Holders will be the sale price of the securities less any discounts and commissions borne by the Selling Holders.

The Common Shares beneficially owned by the Selling Holders covered by this prospectus may be offered and sold from time to time by the Selling Holders. The term “Selling Holders” includes donees, pledgees, transferees or other successors in interest selling securities received after the date of this prospectus from a Selling Holder as a gift, pledge, partnership distribution or other transfer. The Selling Holders will act independently of us in making decisions with respect to the timing, manner and size of each sale. Such sales may be made on one or more exchanges or in the over-the-counter market or otherwise, at prices and under terms then prevailing or at prices related to the then current market price or in negotiated transactions. The Selling Holders may sell their Common Shares or Warrants by one or more of, or a combination of, the following methods:

In addition, any shares that qualify for sale pursuant to Rule 144 may be sold under Rule 144 rather than pursuant to this prospectus.

To the extent required, this prospectus may be amended or supplemented from time to time to describe a specific plan of distribution. In connection with distributions of the shares or otherwise, the Selling Holders may enter into hedging transactions with broker-dealers or other financial institutions. In connection with such transactions, broker-dealers or other financial institutions may engage in short sales of Common Shares in the course of hedging transactions, and broker-dealers or other financial institutions may engage in short sales of Common Shares in the course of hedging the positions they assume with Selling Holders. The Selling Holders may also sell Common Shares short and redeliver the shares to close out such short positions. The Selling Holders may also enter into option or other transactions with broker-dealers or other financial institutions which require the delivery to such broker-dealer or other financial institution of shares offered by this prospectus, which shares such broker- dealer or other financial institution may resell pursuant to this prospectus (as supplemented or amended to reflect such transaction). The Selling Holders may also pledge shares to a broker-dealer or other financial institution, and, upon a default, such broker-dealer or other financial institution may effect sales of the pledged shares pursuant to this prospectus (as supplemented or amended to reflect such transaction).

A Selling Holder may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If the applicable prospectus supplement indicates, in connection with those derivatives, the third parties may sell securities covered by this prospectus and the applicable prospectus supplement, including in short sale transactions. If so, the third party may use securities pledged by any Selling Holder or borrowed from any Selling Holder or others to settle those sales or to close out any related open borrowings of stock, and may use securities received from any Selling Holder in settlement of those derivatives to close out any related open borrowings of stock. The third party in such sale transactions will be an underwriter and will be identified in the applicable prospectus supplement (or a post-effective amendment). In addition, any Selling Holder may otherwise loan or pledge securities to a financial institution or other third party that in turn may sell the securities short using this prospectus. Such financial institution or other third party may transfer its economic short position to investors in our securities or in connection with a concurrent offering of other securities.

In effecting sales, broker-dealers or agents engaged by the Selling Holders may arrange for other broker-dealers to participate. Broker-dealers or agents may receive commissions, discounts or concessions from the Selling Holders in amounts to be negotiated immediately prior to the sale.

In offering the shares covered by this prospectus, the Selling Holders and any broker-dealers who execute sales for the Selling Holders may be deemed to be “underwriters” within the meaning of the Securities Act in connection with such sales (it being understood that the Selling Holders shall not be deemed to be underwriters solely as a result of their participation in this offering). Any profits realized by the Selling Holders and the compensation of any broker-dealer may be deemed to be underwriting discounts and commissions.

In order to comply with the securities laws of certain states, if applicable, the shares must be sold in such jurisdictions only through registered or licensed brokers or dealers. In addition, in certain states the shares may not be sold unless they have been registered or qualified for sale in the applicable state or an exemption from the registration or qualification requirement is available and is complied with.

We have advised the Selling Holders that the anti-manipulation rules of Regulation M under the Exchange Act may apply to sales of shares in the market and to the activities of the Selling Holders and their affiliates. In addition, we will make copies of this prospectus available to the Selling Holders for the purpose of satisfying the prospectus delivery requirements of the Securities Act. The Selling Holders may indemnify any broker-dealer that participates in transactions involving the sale of the shares against certain liabilities, including liabilities arising under the Securities Act.

At the time a particular offer of shares is made, if required, a prospectus supplement will be distributed that will set forth the number of shares being offered and the terms of the offering, including the name of any underwriter, dealer or agent, the purchase price paid by any underwriter, any discount, commission and other item constituting compensation, any discount, commission or concession allowed or reallowed or paid to any dealer, and the proposed selling price to the public.

A holder of Warrants may exercise its Warrants in accordance with the Warrant Agreement on or before the expiration date set forth therein by surrendering, at the office of the warrant agent, Continental Stock Transfer & Trust Company, the certificate evidencing such Warrant, with the form of election to purchase set forth thereon, properly completed and duly executed, accompanied by full payment of the exercise price and any and all applicable taxes due in connection with the exercise of the Warrant, subject to any applicable provisions relating to cashless exercises in accordance with the Warrant Agreement.

Lock-Up Agreements

None of the Selling Holders are currently party to any lock-up agreements that generally restricted the transfer of securities.

WHERE YOU CAN FIND MORE INFORMATION

We have filed with the SEC a “shelf” registration statement on Form S-3 of which this prospectus is a part, including exhibits, schedules and amendments filed with, or incorporated by reference into, the registration statement. This prospectus and any prospectus supplement do not contain all of the information found in the registration statement and exhibits and schedules to the registration statement. For further information about us and the securities registered hereby, reference is made to the registration statement, including the exhibits to the registration statement. Statements contained in this prospectus or any prospectus supplement as to the contents of any contract or other document referred to in, or incorporated by reference into, this prospectus are not necessarily complete and, where that contract is an exhibit to the registration statement of which this prospectus is a part or to the annual, quarterly or other reports under the Securities Exchange Act of 1934, as amended (“Exchange Act”), which are incorporated by reference herein, each statement is qualified in all respects by the exhibit to which the reference relates.

We file annual, quarterly and other reports and other documents with the SEC. The SEC maintains a website (www.sec.gov) that contains reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC, including information we file. You may read any document we file with or furnish to the securities commissions and authorities of the provinces of Canada through SEDAR+ at https://www.sedarplus.com. We also maintain a website (www.engene.com). Information on our website is not a part of this prospectus.

INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

The SEC allows us to “incorporate by reference” information that we file with the SEC, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is an important part of this prospectus. Any statement contained in this prospectus, any prospectus supplement or in a document incorporated or deemed to be incorporated by reference herein will be deemed to be modified or superseded for purposes of this prospectus and any prospectus supplement to the extent that a statement in any subsequently filed document that also is or is deemed to be incorporated by reference herein modifies or supersedes that statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus or any prospectus supplement. We incorporate by reference the following documents we have filed with the SEC:

We also incorporate by reference into this prospectus additional documents that we may file with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of the filing of the initial registration statement and prior to effectiveness of the registration statement and from the date of this prospectus (other than any documents, or portions of documents, not deemed to be filed) until all of the securities covered by this registration statement have been sold.

You may obtain copies of any of these filings without charge from our website www.engene.com, or by contacting the SEC or accessing its website as described above. The information found on, or otherwise accessible through, our website is not incorporated into, and does not form a part of, this prospectus or any other report or document we file with or furnish to the SEC. We will provide, upon written or oral request, at no cost, to each person, including any beneficial owner, to whom a prospectus is delivered, a copy of any or all of the information that has been incorporated by reference in the prospectus but not delivered with the prospectus. You may request a copy of these filings, at no cost to you, by writing us at enGene Holdings Inc., Attn: Corporate Secretary, 4868 Rue Levy, Suite 220, Saint-Laurent, QC, Canada H4R 2P1. Our telephone number is (514) 332-4888.

You should rely only on the information incorporated by reference or provided in this prospectus or any supplement. We have not authorized anyone else to provide you with different information. You should not assume that information in this prospectus or any supplement is accurate as of any date other than the date on the front of these documents.

ENFORCEMENT OF CIVIL LIABILITIES

We are a corporation existing under the laws of British Columbia, Canada and, as a result, the rights of the holders of our securities may be impacted by Canadian law and our amended organizational documents. All or substantially all of our assets are located outside the United States, and substantially all of our business, including our operations, is conducted outside the United States. In addition, some of our directors and officers are nationals and/or residents of countries other than the United States, and all or a substantial portion of such persons’ assets may be located outside the United States. As a result, it could be difficult or impossible for you to effect service of process on these individuals in the United States in the event that you believe that your rights have been infringed under applicable securities laws or otherwise or to enforce in the United States judgments obtained in U.S. courts against us or those persons based on civil liability provisions of the U.S. securities laws. There can be no assurance that U.S. investors will be able to enforce against us, members of our board of directors, officers or certain experts named herein who are residents of Canada or other countries outside the United States, any judgments in civil and commercial matters, including judgments under the federal securities laws. There is uncertainty with respect to whether a Canadian court would take jurisdiction on a matter of liability predicated solely upon U.S. federal securities laws, and uncertainty with respect to whether a Canadian court would enforce a foreign judgement on liabilities predicated upon the securities laws of the United States.

TRANSFER AGENT AND REGISTRAR

Our transfer agent, warrant agent and registrar is Continental Stock Transfer & Trust Company, located at 1 State Street, 30th Floor, New York, New York, 10004.

LEGAL MATTERS

The validity of the enGene Common Shares offered by this prospectus has been passed upon for us by Blake, Cassels & Graydon LLP. The validity of the enGene Warrants offered by this prospectus has been passed upon for us by Morgan, Lewis & Bockius LLP. If the validity of any securities is also passed upon by counsel for the underwriters, dealers or agents of an offering of those securities, that counsel will be named in the applicable prospectus supplement.

EXPERTS

The consolidated financial statements of enGene Holdings Inc. as of October 31, 2023 and 2022, and for the years ended October 31, 2023 and 2022, have been incorporated by reference herein in this registration statement in reliance upon the report of KPMG LLP, independent registered public accounting firm, incorporated by reference herein, and upon the authority of said firm as experts in accounting and auditing. The audit report covering the October 31, 2023 consolidated financial statements contains an explanatory paragraph that states that the Company has incurred a net loss and negative cash flows from operating activities for the year ended October 31, 2023, has an accumulated deficit at October 31, 2023, and will require additional financing in order to fund its future expected negative cash flows, that raise substantial doubt about its ability to continue as a going concern. The consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.

The financial statements of Forbion European Acquisition Corp. for the year ended December 31, 2022 and the period from August 9, 2021 (inception) through December 31, 2021, and as of December 31, 2022 and December 31, 2021, included in this registration statement have been audited by Marcum LLP, independent registered public accounting firm, as stated in their report appearing herein which contains an explanatory paragraph relating to substantial doubt about the ability of Forbion European Acquisition Corp. to continue as a going concern as described in Note 1 to the financial statements. Such financial statements have been so included in reliance upon the report of such firm given upon their authority as experts in accounting and auditing.

enGene Holdings Inc.

Up to 46,977,183 Common Shares and 6,289,198 Warrants to be Offered and Sold by the Selling Holders
and
Up to 8,511,968 Common Shares Issuable Upon Exercise of Warrants

PROSPECTUS

November 21, 2024

You should rely only on the information contained or incorporated by reference in this prospectus. We have not authorized anyone to provide you with different information. You should not assume that the information contained or incorporated by reference in this prospectus is accurate as of any date other than the date of this prospectus. We are not making an offer of these securities in any state where the offer is not permitted.