Institutional Ownership
Cartesian Therapeutics Inc
CUSIP 816212302COM NEWRNACQ1 2026
13D / 13G Filings
14
Schedule 13D/13G on record
Beneficial Filers
6
Distinct reporting persons
Largest Stake
37.6%
Max % of class reported
Institutional Holders
79
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
14 filings · latest Mar 13, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Mar 13, 2026 | Squarepoint Ops LLC | 13G | 8.3% | 2.21M | SEC |
| 2 | Feb 5, 2026 | Fmr LLC | 13G/A | 5.3% | 1.37M | SEC |
| 3 | Nov 5, 2025 | Fmr LLC | 13G/A | 8.3% | 2.16M | SEC |
| 4 | Apr 25, 2025 | Jpmorgan Chase &Amp; Co. | 13G | 6.1% | 1.68M | SEC |
| 5 | Feb 12, 2025 | Fmr LLC | 13G/A | 9.4% | 2.42M | SEC |
| 6 | Jan 15, 2025 | Timothy A. Springer | 13D/A | 36.9% | — | SEC |
| 7 | Dec 23, 2024 | Timothy A. Springer | 13D/A | 36.8% | — | SEC |
| 8 | Nov 18, 2024 | Springer Timothy A | 13D/A | 37.1% | 9.48M | SEC |
| 9 | Oct 15, 2024 | Kalayoglu Murat | 13D/A | 19.9% | 5.06M | SEC |
| 10 | Oct 4, 2024 | Springer Timothy A | 13D/A | 37.6% | 9.05M | SEC |
4 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Cartesian Therapeutics Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Squarepoint Ops LLC | 2.24M | $13.77M |
| 2 | Fmr LLC | 799.7K | $4.92M |
| 3 | Blackrock, Inc. | 599.1K | $3.68M |
| 4 | 683 Capital Management, LLC | 330.0K | $2.03M |
| 5 | Millennium Management LLC | 284.3K | $1.75M |
| 6 | Geode Capital Management, LLC | 263.7K | $1.62M |
| 7 | Marshall Wace, LLP | 251.1K | $1.54M |
| 8 | Erste Asset Management Gmbh | 221.7K | $1.30M |
| 9 | State Street Corp | 200.3K | $1.23M |
| 10 | Privium Fund Management B.V. | 179.1K | $1.10M |