SER: SERINA THERAPEUTICS, INC. insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 0 sales totaling - in the last 180 days.
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-11-03 | 13G amendment | Sio Capital Management, LLC | 7.87% | SEC |
Institutional ownership (Q2 2026)
27 institutions reported holding $2.73M of SERINA THERAPEUTICS, INC. on Form 13F (25 the quarter before). 4 opened a new position and 3 sold out. Shares held by institutions: -4%.
| Largest holders | Shares | Value |
|---|---|---|
| Sio Capital Management, LLC | 1,000,000 | $1.94M |
| VANGUARD CAPITAL MANAGEMENT LLC | 162,198 | $315K |
| Waverly Advisors, LLC | 67,492 | $131K |
| GEODE CAPITAL MANAGEMENT, LLC | 51,007 | $99K |
| Keel Point, LLC | 21,508 | $42K |
| NORTHERN TRUST CORP | 20,771 | $40K |
| VANGUARD FIDUCIARY TRUST CO | 20,009 | $39K |
| Avidian Wealth Enterprises, LLC | 18,800 | $36K |
| JANE STREET GROUP, LLC | 15,444 | $30K |
| STATE STREET CORP | 12,758 | $25K |
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