Company: RNAC
Filing Date: 2025-04-28
Form Type: DEF 14A
Source: 0001453687-25-000075
Chunk: 3

Company: Cartesian Therapeutics, Inc.
Filing Date: 2025-04-28
Form: DEF 14A
Chunk 3
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2025 are entitled to notice of and to vote at the Annual Meeting, or any continuation, postponement or adjournment of the Annual Meeting. A complete list of these stockholders will be open to the examination of any stockholder for a period of ten days prior to the Annual Meeting for a purpose germane to the meeting by sending an email to StockholderRequests@cartesiantx.com, stating the purpose of the request and providing proof of ownership of our common stock. The Annual Meeting may be continued or adjourned from time to time without notice other than by announcement at the Annual Meeting.

It is important that your shares be represented regardless of the number of shares you may hold. Whether or not you plan to attend the Annual Meeting webcast, we urge you to vote your shares via the toll-free telephone number or over the Internet, as described in the enclosed materials. If you received a proxy card by mail, you may sign, date and mail the proxy card in the enclosed return envelope. Promptly voting your shares will ensure the presence of a quorum at the Annual Meeting and will save us the expense of further solicitation. We encourage stockholders to submit their proxies via telephone or over the Internet. Submitting your proxy now will not prevent you from voting your shares electronically at the Annual Meeting if you desire to do so, as your proxy is revocable at your option.

| By order of the Board of Directors,             |
| /s/ Carsten Brunn, Ph.D.                        |
| Carsten Brunn, Ph.D.                            |
| President and Chief Executive Officer, Director |
| Frederick, Maryland                             |
| April 28, 2025                                  |

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#### CARTESIAN THERAPEUTICS, INC.

#### 7495 New Horizon Way

#### Frederick, Maryland 21703

### PROXY STATEMENT
This proxy statement is furnished in connection with the solicitation by the Board of Directors (the “Board”) of Cartesian Therapeutics, Inc. (the “Company”) of proxies to be voted at our Annual Meeting of Stockholders (the “Annual Meeting”) to be held on Friday, June 13, 2025 at 10:00 a.m., Eastern Time, and at any continuation, postponement, or adjournment of the Annual Meeting. The Annual Meeting will be a completely virtual meeting, which will be conducted via live webcast. You will be able to attend the Annual Meeting online and submit your questions during