SER SERINA THERAP
SERINA THERAP (SER) Institutional Ownership
What the institutions did with SER last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Sio Capital Management, LLC | 1.0M | 71.1% |
| VANGUARD CAPITAL MANAGEMENT LLC | 162.2K | 11.5% |
| Waverly Advisors, LLC | 67.5K | 4.8% |
| GEODE CAPITAL MANAGEMENT, LLC | 51.0K | 3.6% |
| Keel Point, LLC | 21.5K | 1.5% |
| NORTHERN TRUST CORP | 20.8K | 1.5% |
| VANGUARD FIDUCIARY TRUST CO | 20.0K | 1.4% |
| Avidian Wealth Enterprises, LLC | 18.8K | 1.3% |
| JANE STREET GROUP, LLC | 15.4K | 1.1% |
| STATE STREET CORP | 12.8K | 0.9% |
| Caitong International Asset Management Co., Ltd | 3.7K | 0.3% |
| WELLS FARGO & COMPANY/MN | 3.6K | 0.3% |
| Tower Research Capital LLC (TRC) | 2.6K | 0.2% |
| BlackRock, Inc. | 2.4K | 0.2% |
| OSAIC HOLDINGS, INC. | 2.0K | 0.1% |
| UBS Group AG | 1.3K | 0.1% |
| BARCLAYS PLC | 545 | 0.0% |
| Avion Wealth | 312 | 0.0% |
| Piscataqua Savings Bank | 28 | 0.0% |
| MORGAN STANLEY | 14 | 0.0% |
| ALBION FINANCIAL GROUP /UT | 8 | 0.0% |
| Pacifica Partners Inc. | 8 | 0.0% |
| BNP PARIBAS FINANCIAL MARKETS | 2 | 0.0% |
| Rockefeller Capital Management L.P. | 2 | 0.0% |
| JPMORGAN CHASE & CO | 1 | 0.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Reduced | 58.3K | 2.4K | -55.9K |
| JANE STREET GROUP, LLC | Reduced | 39.7K | 15.4K | -24.2K |
| NORTHERN TRUST CORP | New | 0 | 20.8K | +20.8K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 65.0K | 51.0K | -14.0K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 159.1K | 162.2K | +3.1K |
| Tower Research Capital LLC (TRC) | Increased | 843 | 2.6K | +1.7K |
| UBS Group AG | Increased | 5 | 1.3K | +1.3K |
| OSAIC HOLDINGS, INC. | Increased | 1.0K | 2.0K | +1.0K |
| BARCLAYS PLC | New | 0 | 545 | +545 |
| Vanguard Global Advisers, LLC | Sold Out | 368 | 0 | -368 |
| Avion Wealth | New | 0 | 312 | +312 |
| Caitong International Asset Management Co., Ltd | Reduced | 4.0K | 3.7K | -238 |
| Advisory Services Network, LLC | Sold Out | 14 | 0 | -14 |
| MORGAN STANLEY | Increased | 8 | 14 | +6 |
| WELLS FARGO & COMPANY/MN | Increased | 3.6K | 3.6K | +5 |
| JPMORGAN CHASE & CO | New | 0 | 1 | +1 |
| Federation des caisses Desjardins du Quebec | Sold Out | 1 | 0 | -1 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.