SEC Form POS AM filed by Sesen Bio Inc.

As filed with the Securities and Exchange Commission on May 12, 2023 

Registration No. 333-255943             

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

POST-EFFECTIVE AMENDMENT NO. 1 TO

FORM S-3
REGISTRATION STATEMENT
UNDER THE SECURITIES ACT OF 1933

Carisma Therapeutics Inc.

(Exact name of registrant as specified in its charter)

3675 Market Street, Suite 200
Philadelphia, PA 19104
(267) 491-6422
(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

Steven Kelly

President and Chief Executive Officer

Carisma Therapeutics Inc.

3675 Market Street, Suite 200

Philadelphia, PA 19104

(267) 491-6422

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copy to:

Approximate date of commencement of proposed sale to the public: Not applicable.

If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box: ¨

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box: ¨

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ¨ _______________

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ¨

If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ¨

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box.¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ¨

DEREGISTRATION OF UNSOLD SECURITIES

This Post-Effective Amendment No. 1, filed by Carisma Therapeutics Inc. (formerly Sesen Bio, Inc.), a Delaware corporation (the “Company”), removes from registration all of the unsold securities registered under the Registration Statement on Form S-3 (Registration Number 333-255943), which was filed with the U.S. Securities and Exchange Commission on May 10, 2021 (the “Registration Statement”) and became effective on May 14, 2021, pertaining to the registration of up to $200,000,000 in the aggregate of securities.

The Company is terminating all offerings of its securities pursuant to the Registration Statement. The Company, by filing this Post-Effective Amendment No. 1, hereby terminates the effectiveness of the Registration Statement and removes from registration any and all securities registered but unsold under the Registration Statement as of the date hereof. This filing is made in accordance with an undertaking in the Registration Statement to remove from registration by means of a post-effective amendment any securities that were registered for issuance but remain unsold at the termination of the offering.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Post-Effective Amendment No. 1 to be signed on its behalf by the undersigned, thereunto duly authorized, in the city of Philadelphia, Commonwealth of Pennsylvania, on May 12, 2023.

Note: No other person is required to sign this Post-Effective Amendment No. 1 to the Registration Statement in reliance on Rule 478 of the Securities Act of 1933.