🕵️ Cartesian Therapeutics, Inc. ($RNAC)
SEC insider & ownership activity, last 12 months · CIK 1453687 · every row links its SEC filing
Over the last 12 months insiders sold $259K against $206K of open-market buying. Timothy C. Barabe bought $206K in discretionary trades (Dec). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $206K (1 lots) · 3 sellers, $259K (3 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Timothy C. Barabe | 1 | $206K | 0 | – | Dec 4, 2025 |
| Brunn Carsten | 0 | – | 1 | $162K | Jan 6, 2026 |
| Davis Blaine | 0 | – | 1 | $72K | Jan 6, 2026 |
| Milos Miljkovic | 0 | – | 1 | $24K | Jan 6, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Timothy A. Springer | 36.9% | 13D | Jan 13, 2025 | filing ↗ | |
| Timothy A. Springer | 36.8% | 13D | Dec 19, 2024 | filing ↗ | |
| Murat Kalayoglu | 19.9% | 13D | Mar 31, 2026 | filing ↗ | |
| Sinan Kalayoglu | 18.1% | 13D | Mar 31, 2026 | filing ↗ | |
| Elizabeth Hoge | 18.1% | 13D | Mar 31, 2026 | filing ↗ | |
| Seven One Eight Three FOUR Irrevocable Trust | 18.1% | 13D | Mar 31, 2026 | filing ↗ | |
| Squarepoint OPS LLC | 8.3% | 13G | Mar 13, 2026 | filing ↗ | |
| Squarepoint Capital LLP | 8.3% | 13G | Mar 13, 2026 | filing ↗ | |
| Squarepoint Operations Private Limited | 8.3% | 13G | Mar 13, 2026 | filing ↗ | |
| Squarepoint (DIFC) Ltd | 8.3% | 13G | Mar 13, 2026 | filing ↗ | |
| Squarepoint Master Fund Limited | 8.2% | 13G | Mar 13, 2026 | filing ↗ | |
| JPMorgan Chase & Co. | exited | 13G | Jul 22, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Milos Miljkovic | $233K | Jun 9, 2026 | filing ↗ |
| Milos Miljkovic | $25K | Jun 2, 2026 | filing ↗ |
| Christopher M Jewell | $69K | Jan 13, 2026 | filing ↗ |
| Christopher M Jewell | $12K | Jan 9, 2026 | filing ↗ |
| Christopher M Jewell | $193K | Nov 19, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Shareholder vote (5.07) | Jun 12, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 9, 2026 | filing ↗ |
| Material agreement (1.01) | May 22, 2026 | filing ↗ |
| New financial obligation (2.03) | May 22, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | May 22, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 22, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 22, 2026 | filing ↗ |
| Earnings (2.02) | Apr 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 30, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 26, 2026 | filing ↗ |
| Earnings (2.02) | Mar 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 9, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 9, 2026 | filing ↗ |
| Officer/director changes (5.02) | Dec 16, 2025 | filing ↗ |
| Amendments to the Registrant's Code of Ethics (5.05) | Dec 16, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Dec 16, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 16, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 13, 2025 | filing ↗ |
| Other events (8.01) | Nov 13, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 13, 2025 | filing ↗ |
| Earnings (2.02) | Nov 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 6, 2025 | filing ↗ |
| Officer/director changes (5.02) | Oct 29, 2025 | filing ↗ |
| Charter/bylaw changes (5.03) | Oct 29, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 29, 2025 | filing ↗ |
| Officer/director changes (5.02) | Oct 15, 2025 | filing ↗ |