Sera Prognostics, Inc.
SERA- Exchange
- Nasdaq
- Industry
- Services-Medical Laboratories
- SEC CIK
- 0001534969
In the last 90 days, Sera Prognostics, Inc. insiders filed 0 open-market purchases and 5 sales; 47 institutions reported holding it in 13F filings for Q2 2026, worth $31.0M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Sera Prognostics, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 56
- 0 vs. Q4 2025
- Shares held
- 19.9M
- +3.54M (+21.6%) vs. Q4 2025
- Total value
- $40.5M
- −$7.92M (−16.4%) vs. Q4 2025
- New holders
- 11
- 6 more added
- Sold out
- 11
- 17 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SERA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 47 | $31.0M |
| Q1 2026 | 56 | $40.5M |
| Q4 2025 | 57 | $52.1M |
| Q3 2025 | 62 | $55.6M |
| Q2 2025 | 59 | $51.5M |
| Q1 2025 | 71 | $74.4M |
| Q4 2024 | 73 | $147.2M |
| Q3 2024 | 61 | $140.3M |
| Q2 2024 | 65 | $98.2M |
| Q1 2024 | 52 | $131.1M |
| Q4 2023 | 47 | $66.8M |
| Q3 2023 | 28 | $16.5M |
| Q2 2023 | 33 | $31.4M |
| Q1 2023 | 35 | $36.5M |
| Q4 2022 | 29 | $8.86M |
| Q3 2022 | 35 | $13.9M |
| Q2 2022 | 30 | $14.2M |
| Q1 2022 | 45 | $36.6M |
| Q4 2021 | 37 | $63.8M |
| Q3 2021 | 36 | $96.1M |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Sera Prognostics, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Baker Bros. Advisors LP | 5,498,170 | $11.2M | 0.06% | 00.0% | Unchanged |
| Whetstone Capital Advisors, LLC | 3,306,889 | $6.71M | 2.53% | −152,824−4.4% | Reduced |
| Standard Life Aberdeen plc | 2,550,775 | $5.18M | 0.01% | +271,076+11.9% | Added |
| PSP Research LLC | 2,396,685 | $4.87M | 3.44% | +2,396,685 | New |
| Vivo Capital, LLC | 1,650,440 | $3.35M | 0.28% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 1,204,115 | $2.44M | 0.00% | +1,204,115 | New |
| Captrust Financial Advisors | 536,761 | $1.09M | 0.00% | −50.0% | Reduced |
| Geode Capital Management, LLC | 363,617 | $738.5K | 0.00% | +28,978+8.7% | Added |
| Sanders Morris Harris LLC | 314,950 | $639.3K | 0.10% | +314,950 | New |
| Citadel Advisors LLC | 248,909 | $505.3K | 0.00% | −458,705−64.8% | Reduced |
| AWM Investment Company, Inc. | 207,382 | $421.0K | 0.05% | 00.0% | Unchanged |
| BlackRock, Inc. | 196,105 | $398.1K | 0.00% | +9,354+5.0% | Added |
| Vanguard Fiduciary Trust Co | 169,661 | $344.4K | 0.00% | +169,661 | New |
| State Street Corp | 124,792 | $253.3K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 105,017 | $213.2K | 0.00% | +24,049+29.7% | Added |
| Gsa Capital Partners LLP | 104,973 | $213.0K | 0.01% | −2,262−2.1% | Reduced |
| Northern Trust Corp | 96,535 | $196.0K | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 91,504 | $185.8K | 0.00% | −21,674−19.2% | Reduced |
| Perigon Wealth Management, LLC | 72,685 | $147.6K | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 60,927 | $123.7K | 0.00% | −14,340−19.1% | Reduced |
| Requisite Capital Management, LLC | 55,648 | $113.0K | 0.02% | 00.0% | Unchanged |
| Jane Street Group, LLC | 53,908 | $109.4K | 0.00% | −14,918−21.7% | Reduced |
| Ballentine Partners, LLC | 49,664 | $100.8K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 45,705 | $92.8K | 0.00% | 00.0% | Unchanged |
| Twelve Points Wealth Management LLC | 43,388 | $88.1K | 0.02% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 42,234 | $85.7K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 31,967 | $64.9K | 0.00% | −4,755−12.9% | Reduced |
| Squarepoint Ops LLC | 31,428 | $63.8K | 0.00% | −4,894−13.5% | Reduced |
| Birch Hill Investment Advisors LLC | 27,293 | $55.4K | 0.00% | 00.0% | Unchanged |
| Cetera Investment Advisers | 25,000 | $50.8K | 0.00% | 00.0% | Unchanged |
| Catalyst Funds Management Pty Ltd | 23,564 | $47.8K | 0.01% | +23,564 | New |
| Two Sigma Investments, LP | 21,964 | $44.6K | 0.00% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 19,917 | $40.4K | 0.00% | −9,065−31.3% | Reduced |
| Dimensional Fund Advisors LP | 19,535 | $39.3K | 0.00% | −3,399−14.8% | Reduced |
| Goldman Sachs Group Inc | 18,472 | $37.5K | 0.00% | −10,127−35.4% | Reduced |
| XTX Topco Ltd | 16,491 | $33.5K | 0.00% | +16,491 | New |
| UBS Group AG | 14,869 | $30.2K | 0.00% | −10,326−41.0% | Reduced |
| Riverview Capital Advisers, LLC | 12,669 | $25.7K | 0.01% | 00.0% | Unchanged |
| Wagner Wealth Management, LLC | 12,400 | $25.2K | 0.01% | −286−2.3% | Reduced |
| Arkadios Wealth Advisors | 12,400 | $25.2K | 0.00% | +12,400 | New |
| Colony Group, LLC | 12,156 | $24.7K | 0.00% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 12,085 | $24.5K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 11,169 | $22.7K | 0.00% | +11,169 | New |
| Geneos Wealth Management Inc. | 10,800 | $21.9K | 0.00% | +3,000+38.5% | Added |
| Wealth Enhancement Advisory Services, LLC | 10,558 | $21.2K | 0.00% | −81−0.8% | Reduced |
| FMR LLC | 6,573 | $13.3K | 0.00% | −8,272−55.7% | Reduced |
| CWM, LLC | 1,003 | $2.04K | 0.00% | −3−0.3% | Reduced |
| Optiver Holding B.V. | 412 | $836 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 236 | $479 | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 222 | $426 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 129 | $262 | 0.00% | 00.0% | Unchanged |
| Silicon Valley Capital Partners | 57 | $116 | 0.00% | +57 | New |
| Advisory Services Network, LLC | 19 | $39 | 0.00% | +19 | New |
| SBI Securities Co., Ltd. | 7 | $14 | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 4 | $8 | 0.00% | +4 | New |
| Royal Bank of Canada | 43 | $0 | 0.00% | +3+7.5% | Added |
| CI Private Wealth, LLC | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −71,532−100.0% | Sold out |
| Lido Advisors, LLC | 0 | $0 | 0.00% | −16,623−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −11,403−100.0% | Sold out |
| Abel Hall, LLC | 0 | $0 | 0.00% | −11,037−100.0% | Sold out |
| Deutsche Bank AG | 0 | $0 | 0.00% | −8,729−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −4,670−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −945−100.0% | Sold out |
| Torren Management, LLC | 0 | $0 | 0.00% | −389−100.0% | Sold out |
| Fortitude Family Office, LLC | 0 | $0 | 0.00% | −301−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |