Sera Prognostics Inc. Class ASERA
13F holders, Q2 2025 (June 30)59holders −12
13new positions
24sold out
2famous investors
$2.77avg. 13F price*
At the end of Q2 2025, 59 institutions reported holding Sera Prognostics Inc. Class A (SERA) in their 13F filings, down 12 from Q1 2025. 13 opened new positions and 24 sold out. The largest holders were Baker Bros. Advisors LP ($15.2M), Whetstone Capital Advisors, LLC ($10.1M) and Aberdeen Group plc ($6.2M). 2 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Sera Prognostics Inc. Class A
- CUSIP
- 81749D107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 13 | $10.8M |
| Exits | 24 | $12.4M |
All 13F filers, Q1 2025 → Q2 2025: 5,488,635 shares bought and 7,077,073 shares sold, net −1,588,438 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 59 holders
| Baker Bros. Advisors LP | 0.15% | No change | 5,498,170 | $15.2M |
| Whetstone Capital Advisors, LLC | 2.84% | New | 3,632,371 | $10.1M |
| Aberdeen Group plc | 0.01% | Add +79.6% | 2,227,367 | $6.2M |
| Vivo Capital, LLC | 0.47% | No change | 1,650,440 | $4.6M |
| Vanguard Group Inc. | 0.00% | Reduce -8.8% | 1,163,182 | $3.2M |
| AWM Investment Company, Inc. | 0.21% | Reduce -21.4% | 680,931 | $1.9M |
| Citadel Advisors | 0.00% | Add +0.3% | 629,007 | $1.7M |
| Captrust Financial Advisors | 0.00% | Add +20.0% | 602,277 | $1.7M |
| Geode Capital Management, LLC | 0.00% | Reduce -52.3% | 302,410 | $838K |
| Sanders Morris Harris LLC | 0.17% | Add +179.8% | 263,600 | $730K |
| Millennium Management | 0.00% | Add +756.5% | 184,564 | $511K |
| BlackRock, Inc. | 0.00% | Reduce -90.5% | 145,279 | $402K |
| Perkins Capital Management Inc. | 0.36% | Reduce -12.7% | 131,000 | $363K |
| State Street Corp. | 0.00% | Reduce -74.3% | 121,592 | $337K |
| Corient Private Wealth LP | 0.00% | Add +73.9% | 100,000 | $277K |
| Northern Trust Corp. | 0.00% | Reduce -65.4% | 91,635 | $254K |
| Morgan Stanley | 0.00% | Add +11.0% | 91,382 | $253K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | Add +0.4% | 99,155 | $247K |
| Squarepoint Ops LLC | 0.00% | Add +161.1% | 85,420 | $237K |
| Cliftonlarsonallen Wealth Advisors, LLC | 0.00% | New | 78,855 | $218K |
| Bank of New York Mellon Corp | 0.00% | Reduce -43.4% | 76,757 | $213K |
| Perigon Wealth Management, LLC | 0.00% | No change | 72,685 | $201K |
| Y-Intercept (Hong Kong) Ltd | 0.00% | New | 67,692 | $188K |
| Gsa Capital Partners LLP | 0.01% | Add +127.8% | 62,534 | $173K |
| Requisite Capital Management, LLC | 0.03% | No change | 55,648 | $154K |
| Ballentine Partners, LLC | 0.00% | No change | 49,664 | $138K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -27.1% | 45,914 | $127K |
| Bridgeway Capital Management, LLC | 0.00% | Reduce -49.6% | 45,705 | $127K |
| Twelve Points Wealth Management LLC | 0.03% | No change | 43,388 | $120K |
| HighTower Advisors, LLC | 0.00% | Reduce -0.2% | 42,984 | $119K |
| Acadian Asset Management LLC | 0.00% | New | 37,384 | $102K |
| Qube Research & Technologies Ltd | 0.00% | New | 33,382 | $92K |
| Susquehanna International Group, LLP | 0.00% | Reduce -35.1% | 24,446 | $68K |
| Dimensional Fund Advisors LP | 0.00% | Reduce -38.4% | 22,424 | $67K |
| FMR LLC | 0.00% | Add +180.2% | 14,845 | $41K |
| Point72 Asia (Singapore) Pte. Ltd. | 0.01% | New | 13,804 | $38K |
| Pallas Capital Advisors LLC | 0.00% | Reduce -1.1% | 13,711 | $38K |
| Riverview Capital Advisers, LLC | 0.01% | New | 12,733 | $35K |
| Wagner Wealth Management, LLC | 0.01% | New | 12,400 | $34K |
| Focus Partners Wealth | 0.00% | Reduce -0.1% | 12,156 | $34K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -85.1% | 12,092 | $33K |
| Abel Hall, LLC | 0.01% | New | 11,037 | $31K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +167.1% | 10,439 | $29K |
| Dauntless Investment Group, LLC | 0.13% | New | 10,000 | $28K |
| Equitable Holdings, Inc. | 0.00% | Reduce -69.0% | 10,000 | $28K |
| Deutsche Bank AG | 0.00% | Reduce -74.3% | 8,729 | $24K |
| Bank of America Corp. | 0.00% | Reduce -79.0% | 3,867 | $11K |
| Cwm, LLC | 0.00% | Add +4.0% | 1,111 | $3K |
| UBS Group AG | 0.00% | Reduce -98.8% | 1,025 | $3K |
| Raymond James Financial Inc. | 0.00% | New | 1,005 | $3K |
| BNP Paribas Financial Markets | 0.00% | Reduce -63.9% | 584 | $2K |
| Point72 (DIFC) Ltd | 0.00% | New | 204 | $566 |
| Rise Advisors, LLC | 0.00% | New | 172 | $476 |
| JPMorgan Chase & Co. | 0.00% | Reduce -100.0% | 146 | $404 |
| Nisa Investment Advisors, LLC | 0.00% | Reduce -58.5% | 129 | $357 |
| SBI Securities Co., Ltd. | 0.00% | Add +75.0% | 7 | $19 |
| Citigroup Inc. | 0.00% | Reduce -100.0% | 5 | $14 |
| Barclays PLC | 0.00% | Reduce -100.0% | 2 | $6 |
| Royal Bank of Canada | 0.00% | Reduce -90.8% | 36 | $0 |
"% of holder's portfolio" is SERA's weight in each manager's 13F, not the share of Sera Prognostics Inc. Class A the manager owns.