UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 21, 2023    

CARTESIAN THERAPEUTICS, INC.

(Exact name of registrant as specified in its charter)

Delaware	001-37798	26-1622110
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

704 Quince Orchard Road, Gaithersburg, MD 20878

(Address of principal executive offices)(Zip Code)

(617) 923-1400

Registrant’s telephone number, including area code

Selecta Biosciences, Inc.

65 Grove Street

Watertown, MA 02472

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:
Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock (Par Value $0.0001)	RNAC	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company o

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 13(a) of the Exchange Act.

o

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On November 21, 2023, Scott D. Myers, a member of the Board of Directors (the “Board”) of Cartesian Therapeutics, Inc. (the “Company”), notified the Company of his resignation from the Board, effective immediately, to pursue other opportunities. Prior to his resignation, Mr. Myers served on the Board’s Compensation and Nominating and Corporate Governance Committees, and in connection with his resignation, Mr. Myers will cease service on both such committees. Mr. Myers’ resignation was not the result of a disagreement with the Company on any matter relating to the Company’s operations, policies or practices.

Mr. Myers was a valued member of the Selecta Biosciences Board, providing exemplary service and making many important contributions since he joined in June 2019. We thank Mr. Myers for his advice and leadership and wish Mr. Myers well as he pursues other opportunities.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	CARTESIAN THERAPEUTICS, INC.
Date: November 27, 2023	By:	/s/ Carsten Brunn, Ph.D.
		Carsten Brunn, Ph.D.
		President and Chief Executive Officer