🕵️ Senti Biosciences Holdings, Inc. ($SNTI)
SEC insider & ownership activity, last 12 months · CIK 1854270 · every row links its SEC filing
Insiders were quiet over the last 12 months – no open-market buys or sells. Bayer Healthcare LLC trimmed 20.0% → 17.8%; Bayer US Holding LLC trimmed 20.0% → 17.8%. No red-flag 8-Ks in the window.
Insider flow
0 buyers, $0 (0 lots) · 0 sellers, $0 (0 lots)
No open-market insider transactions in the last 12 months.
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Celadon Partners, LLC | 54.6% | 13D | Jul 14, 2026 | filing ↗ | |
| CPIF II-7 Limited | 54.6% | 13D | Jul 14, 2026 | filing ↗ | |
| Celadon Partners SPV 24 | 54.6% | 13D | Jul 14, 2026 | filing ↗ | |
| Gurumurthy Ramamurthy | 20.0% | 13D | Mar 10, 2025 | filing ↗ | |
| Sebastian Guth | 17.8% | 13D | Mar 27, 2026 | filing ↗ | |
| Priyal Patel | 17.8% | 13D | Mar 27, 2026 | filing ↗ | |
| Bayer Healthcare LLC | 17.8% | 13D | Mar 27, 2026 | filing ↗ | |
| Bayer US Holding LLC | 17.8% | 13D | Mar 27, 2026 | filing ↗ | |
| Scott D. Sandell | 12.1% | 13D | Mar 27, 2026 | filing ↗ | |
| New Enterprise Associates 15, L.P. | 12.1% | 13D | Mar 27, 2026 | filing ↗ | |
| NEA Partners 15, L.P. | 12.1% | 13D | Mar 27, 2026 | filing ↗ | |
| NEA 15 GP, LLC | 12.1% | 13D | Mar 27, 2026 | filing ↗ | |
| Forest Baskett | 12.1% | 13D | Mar 27, 2026 | filing ↗ | |
| Anthony A. Florence, JR. | 12.1% | 13D | Mar 27, 2026 | filing ↗ | |
| Mohamad H. Makhzoumi | 12.1% | 13D | Mar 27, 2026 | filing ↗ | |
| Nantahala Capital Management, LLC | 8.1% | 13G | May 15, 2025 | filing ↗ | |
| Wilmot B. Harkey | 8.1% | 13G | May 15, 2025 | filing ↗ | |
| Daniel Mack | 8.1% | 13G | May 15, 2025 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Material agreement (1.01) | Jul 14, 2026 | filing ↗ |
| Earnings (2.02) | Jul 14, 2026 | filing ↗ |
| Change of control (5.01) | Jul 14, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 14, 2026 | filing ↗ |
| Other events (8.01) | Jul 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 14, 2026 | filing ↗ |
| Material agreement (1.01) | May 20, 2026 | filing ↗ |
| New financial obligation (2.03) | May 20, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 20, 2026 | filing ↗ |
| Earnings (2.02) | May 14, 2026 | filing ↗ |
| Other events (8.01) | May 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 14, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 27, 2026 | filing ↗ |
| New financial obligation (2.03) | Apr 27, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Apr 27, 2026 | filing ↗ |
| Change of control (5.01) | Apr 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 27, 2026 | filing ↗ |
| Other events (8.01) | Apr 1, 2026 | filing ↗ |
| Earnings (2.02) | Mar 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 27, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 17, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Dec 9, 2025 | filing ↗ |
| Other events (8.01) | Dec 9, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 9, 2025 | filing ↗ |
| Earnings (2.02) | Nov 13, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 13, 2025 | filing ↗ |
| Earnings (2.02) | Aug 7, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 7, 2025 | filing ↗ |