SENTI BIOSCIENCES HOLDINGS I SNTI
COM NEW · Common Stock · CUSIP 816944102
- SectorHealth care
- IndustryBiological Products, (No Diagnostic Substances)
- HeadquartersSouth San Francisco, CA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 31.1m as of 2026-07-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $1.10.
Biggest buyers
| Nantahala Capital Management, LLC | New | +888.0k |
| VANGUARD CAPITAL MANAGEMENT LLC | New | +537.5k |
| GEODE CAPITAL MANAGEMENT, LLC | New | +187.1k |
| CITADEL ADVISORS LLC | New | +107.1k |
| VANGUARD FIDUCIARY TRUST CO | New | +91.2k |
| JANE STREET GROUP, LLC | New | +52.5k |
| Menlo Ventures Management, L.P. | New | +35.7k |
| NORTHERN TRUST CORP | New | +32.2k |
| XTX Topco Ltd | New | +23.6k |
| Virtu Financial LLC | New | +22.8k |
Biggest sellers
| None |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
Celadon Partners SPV 24
13D · may seek influence
no change · filed 2026-09-11
Stated purposeThe Issuer plans to use substantially all of the proceeds from the sale of shares of Common Stock pursuant to the Equity Commitment Letter to support its business following completion of the Merger. Full filing |
54.6% |
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 2 | $24.4k | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 0 | — | — |
None reported since 1 Apr 2026.
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| Nantahala Capital Management, LLC 0.03% of their portfolio | 888.0k $976.8k | New |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 537.5k $591.3k | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 187.1k $205.8k | New |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 107.1k $117.8k | New |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 91.2k $100.3k | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 52.5k $57.8k | New |
| Menlo Ventures Management, L.P. 0.01% of their portfolio | 35.7k $39.3k | New |
| NORTHERN TRUST CORP 0.00% of their portfolio | 32.2k $35.4k | New |
| XTX Topco Ltd 0.00% of their portfolio | 23.6k $26.0k | New |
| Virtu Financial LLC 0.00% of their portfolio | 22.8k $25.0k | New |
| UBS Group AG 0.00% of their portfolio | 14.4k $15.9k | New |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 7.3k $8.1k | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 4.0k $4.0k | New |
| BlackRock, Inc. 0.00% of their portfolio | 4.0k $4.4k | New |
| BARCLAYS PLC 0.00% of their portfolio | 768 $845 | New |
| SBI Securities Co., Ltd. 0.00% of their portfolio | 334 $367 | New |
| MORGAN STANLEY 0.00% of their portfolio | 169 $186 | New |
| Caitong International Asset Management Co., Ltd 0.00% of their portfolio | 1 $1 | New |