Murat Kalayoglu - 31 Mar 2026 SCHEDULE 13D/A Report for Cartesian Therapeutics, Inc. Common Stock (RNAC)

Filing Manager
Murat Kalayoglu
Reporting Manager
Murat Kalayoglu
Symbol
RNAC
Shares outstanding
29,316,437 shares
Disclosed Ownership
5,833,971 shares
Ownership
20%
Form type
SCHEDULE 13D/A
Filing time
02 Apr 2026, 17:37:40 UTC
Date of event
31 Mar 2026

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Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Murat Kalayoglu 20% 5,833,971 5,833,971 0 /s/ Murat Kalayoglu Murat Kalayoglu 0002000002
Seven One Eight Three Four Irrevocable Trust 18% 5,313,261 5,313,261 0 /s/ Murat Kalayoglu Murat Kalayoglu, Authorized Person 0002000959
Elizabeth Hoge 18% 5,313,261 0 5,313,261 /s/ Murat Kalayoglu Murat Kalayoglu, Authorized Person 0002000987
Sinan Kalayoglu 18% 5,313,261 0 5,313,261 /s/ Murat Kalayoglu Murat Kalayoglu, Authorized Person