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Schedule 13G/A

RNAC Schedule 13G/A filing by Fidelity / FMR

Fidelity / FMR reported beneficial ownership of 799.7K shares, representing 12% of Cartesian Therapeutics, Inc. in this filing.

FiledMay 6, 2026
Ownership dateMar 31, 2026
Reported shares799.7K
Reported ownership12%
Ownership details

Voting and dispositive power reported in the filing

These figures describe the reporting filer’s disclosed voting and investment authority. They should be read together with the reported share count and percentage.

Sole voting power 797.9K
Shared voting power 799.7K
Sole dispositive power 799.7K
Shared dispositive power 799.7K
Price context

Price dates alongside the ownership filing

Price data provides market context around the disclosure. It does not identify the filer’s actual transaction price.

Close near filing date$8.34as of May 6, 2026
Latest tracked price$8.35as of Aug 5, 2026
Source

Original filing and accession

Use the SEC filing as the primary source when you need the complete disclosure, footnotes, exhibits, or reporting-person details.

Reporting filer
Fidelity / FMR
CIK
CIK0000315066
Accession
0000315066-26-001134
Form
Schedule 13G/A
Open SEC filing View RNAC ownership history
Read the filing in context

Understand what a Schedule 13 filing does—and does not—tell you.

How to read a Schedule 13G → Does a 13G mean the shares were just bought? → Filing date vs. ownership date →