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RNAC · Additional Proxy Materials (DEFA14A) · Filed April 28, 2026

Cartesian Therapeutics Inc — Additional Proxy Materials (DEFA14A)

Form
DEFA14A
Filed
April 28, 2026
Ticker
RNAC
Accession
0001453687-26-000071
Cartesian Therapeutics Inc on Boardroom AlphaView on SEC EDGAR
Boardroom Alpha · Filing insights

CARTESIAN THERAPEUTICS, INC. filed definitive additional materials. Consult the filing for more details.

About Cartesian Therapeutics Inc
Market cap
$188M
1Y TSR
−28.4%
3Y TSR
−41.7%
Board grade
C
Sector
Healthcare
CEO
Carsten Brunn
Last annual meeting: Jun 12, 2026 · View full Cartesian Therapeutics Inc profile →
Document

  

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549
SCHEDULE 14A
(Rule 14a-101)
INFORMATION REQUIRED IN PROXY STATEMENT
SCHEDULE 14A INFORMATION
Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934
(Amendment No.    )
 
 
Filed by the Registrant        þ
 
Filed by a Party other than the Registrant        o
Check the appropriate box:
 
oPreliminary Proxy Statement
oConfidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
oDefinitive Proxy Statement
þDefinitive Additional Materials
oSoliciting Material Pursuant to § 240.14a-12
CARTESIAN THERAPEUTICS, INC.
(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement if Other Than the Registrant)
 
Payment of Filing Fee (Check the appropriate box)
þ No fee required.
o Fee previously paid with preliminary materials
o Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11




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Frequently asked questions

When did Cartesian Therapeutics Inc file this DEFA14A?
Cartesian Therapeutics Inc (RNAC) filed this Additional Proxy Materials (DEFA14A) with the SEC on April 28, 2026. The accession number assigned by EDGAR is 0001453687-26-000071.
What does a DEFA14A disclose?
DEFA14A is additional definitive proxy soliciting material filed in connection with a shareholder meeting — supplemental letters, slides, or amendments issued after the main proxy statement.
What is the key takeaway from this filing?
CARTESIAN THERAPEUTICS, INC. filed definitive additional materials. Consult the filing for more details. This is Boardroom Alpha's one-line summary of the additional proxy materials; see the full filing text above for the formal disclosure.
Where can I find Cartesian Therapeutics Inc's prior proxy statements on EDGAR?
The SEC EDGAR browser lists every DEFA14A Cartesian Therapeutics Inc has filed under CIK 1453687, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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