SEC Form SC 13G filed by Surrozen Inc.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. )*

Surrozen, Inc.

(Name of Issuer)

Common Stock, par value $0.0001 per share

(Title of Class of Securities)

86889P208

(CUSIP Number)

April 4, 2024

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

¨   Rule 13d-1(b)

x   Rule 13d-1(c)

¨   Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Surrozen, Inc. (the “Issuer”)

171 Oyster Point Blvd, Suite 400, South San Francisco, CA 94080

The names of the persons filing this report (collectively, the “Reporting Persons”) are:

RA Capital Management, L.P. (“RA Capital”)

Peter Kolchinsky

Rajeev Shah

RA Capital Healthcare Fund, L.P. (the “Fund”)

The address of the principal business office of each of the Reporting Persons is:

c/o RA Capital Management, L.P., 200 Berkeley Street, 18th Floor, Boston MA 02116

RA Capital and the Fund are Delaware limited partnerships.

Dr. Kolchinsky and Mr. Shah are United States citizens.

Common Stock, par value $0.0001 per share (“Common Stock”)

86889P208

Not applicable.

The information required by this item with respect to each Reporting Person is set forth in Rows 5 through 9 and 11 of the cover pages to this Schedule 13G. The ownership percentages reported are based on the sum of: (i) 3,198,786 shares of Common Stock outstanding as of April 8, 2024, as reported in the Issuer’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (the “SEC”) on April 10, 2024; and (ii) 41,082 shares of Common Stock issuable upon the exercise of Warrants (as defined below).

The Fund directly holds (i) 282,580 shares of Common Stock; (ii) pre-funded warrants (the “Pre-Funded Warrants”) exercisable for up to 40,000 shares of Common Stock; (iii) Series A warrants (the “Series A Common Warrants”) exercisable for up to 322,580 shares of Common Stock; (iv) Series B warrants (the “Series B Common Warrants”) exercisable for up to 350,876 shares of Common Stock; (v) Series C warrants (the “Series C Common Warrants”) exercisable for up to 1,249,997 shares of Common Stock; and (vi) Series D warrants (the “Series D Common Warrants” and, together with the Pre-Funded Warrants, Series A Common Warrants, Series B Common Warrants and Series C Common Warrants, the “Warrants”) exercisable for up to 1,249,997 shares of Common Stock. Each of the Warrants contains a provision (the “Beneficial Ownership Blockers”) which precludes exercise of the Warrants to the extent that, following exercise, the Fund, together with its affiliates and other attribution parties, would own more than 9.99% of the Common Stock outstanding. The Series C Common Warrants and Series D Common Warrants contain additional exercise conditions related to performance milestones. The Fund is currently prohibited from exercising the Warrants to the extent that such exercise would result in the Reporting Persons’ beneficial ownership of more than 323,662 shares of Common Stock.

RA Capital Healthcare Fund GP, LLC is the general partner of the Fund. The general partner of RA Capital is RA Capital Management GP, LLC, of which Dr. Kolchinsky and Mr. Shah are the controlling persons. RA Capital serves as investment adviser for the Fund and may be deemed a beneficial owner, for purposes of Section 13(d) of the Act, of any securities of the Issuer held by the Fund. The Fund has delegated to RA Capital the sole power to vote and the sole power to dispose of all securities held in its portfolio, including the shares of the Issuer’s Common Stock reported herein. Because the Fund has divested itself of voting and investment power over the reported securities it holds and may not revoke that delegation on less than 61 days’ notice, the Fund disclaims beneficial ownership of the securities it holds for purposes of Section 13(d) of the Act and therefore disclaims any obligation to report ownership of the reported securities under Section 13(d) of the Act. As managers of RA Capital, Dr. Kolchinsky and Mr. Shah may be deemed beneficial owners, for purposes of Section 13(d) of the Act, of any securities of the Issuer beneficially owned by RA Capital. RA Capital, Dr. Kolchinsky, and Mr. Shah disclaim beneficial ownership of the securities reported in this Schedule 13G other than for the purpose of determining their obligations under Section 13(d) of the Act, and the filing of this Schedule 13G shall not be deemed an admission that either RA Capital, Dr. Kolchinsky, or Mr. Shah is the beneficial owner of such securities for any other purpose.

If this statement is being filed to report the fact that as of the date hereof the Reporting Persons have ceased to be the beneficial owner of more than five percent of the class of securities, check the following ¨

Not applicable.

Not applicable.

Not applicable.

Not applicable.

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

Exhibit List

SIGNATURE

After reasonable inquiry and to the best of its or his knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

Dated: April 15, 2024

RA CAPITAL MANAGEMENT, L.P.

PETER KOLCHINSKY

RAJEEV SHAH

RA CAPITAL HEALTHCARE FUND, L.P.

EXHIBIT 1

AGREEMENT

This Joint Filing Agreement, dated as of April 15, 2024 is by and among RA Capital Management, L.P., Peter Kolchinsky, Rajeev Shah, and RA Capital Healthcare Fund, L.P. (the foregoing are collectively referred to herein as the “Filers”).

Each of the Filers may be required to file with the United States Securities and Exchange Commission a statement on Schedule 13G and/or 13D with respect to Common Stock, par value $0.0001 per share of Surrozen, Inc. beneficially owned by them from time to time.

Pursuant to and in accordance with Rule 13(d)(1)(k) promulgated under the Securities Exchange Act of 1934, as amended, the Filers hereby agree to file a single statement on Schedule 13G and/or 13D (and any amendments thereto) on behalf of each of such parties, and hereby further agree to file this Joint Filing Agreement as an exhibit to such statement, as required by such rule.

This Joint Filing Agreement may be terminated by any of the Filers upon one week’s prior written notice or such lesser period of notice as the Filers may mutually agree.

Executed and delivered as of the date first above written.

RA CAPITAL MANAGEMENT, L.P.

PETER KOLCHINSKY

RAJEEV SHAH

RA CAPITAL HEALTHCARE FUND, L.P.