Murat Kalayoglu - Oct 11, 2024 Form 4 Insider Report for Cartesian Therapeutics, Inc. (RNAC)

Role: Director, 10%+ Owner
Signature: /s/ Matthew Bartholomae, Attorney-in-Fact for Murat Kalayoglu
Stock symbol: RNAC
Transactions as of: Oct 11, 2024
Transactions value $: $0
Form type: 4
Date filed: 10/15/2024, 04:53 PM
Previous filing: Apr 10, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RNAC	Common Stock	Options Exercise		+1.52M	+50%		4.56M	Oct 11, 2024	by trust	F1, F2
holding	RNAC	Common Stock						506K	Oct 11, 2024	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	RNAC	Series A Non-Voting Convertible Preferred Stock	Options Exercise		-45.6K	-44.68%		56.4K	Oct 11, 2024	Common Stock	1.52M		by trust	F1, F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	On October 11, 2024, a trust (the "Trust") for the benefit of the reporting person's spouse and children elected to convert a portion of its shares of the issuer's Series A Non-Voting Convertible Preferred Stock into shares of the issuer's common stock. The remaining shares of the issuer's Series A Non-Voting Convertible Preferred Stock held by the Trust are subject to a beneficial ownership limitation.
F2	Shares are held by the Trust for the benefit of the reporting person's spouse and children. The reporting person's spouse is a trustee of the Trust.
F3	On November 13, 2023, the issuer acquired the private Delaware corporation which was then known as Cartesian Therapeutics, Inc. in accordance with the terms of an Agreement and Plan of Merger, dated November 13, 2023 (the "Merger"). These securities represent merger consideration payable as a result of the closing of the Merger and securities purchased in a private placement in November 2023.