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 |
|---|---|---|---|---|---|
| Royal Bank of Canada | 43 | $0 | 0.00% | +3+7.5% | Added |
| Caitong International Asset Management Co., Ltd | 4 | $8 | 0.00% | +4 | New |
| SBI Securities Co., Ltd. | 7 | $14 | 0.00% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 19 | $39 | 0.00% | +19 | New |
| Silicon Valley Capital Partners | 57 | $116 | 0.00% | +57 | New |
| Nisa Investment Advisors, LLC | 129 | $262 | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 222 | $426 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 236 | $479 | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 412 | $836 | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 1,003 | $2.04K | 0.00% | −3−0.3% | Reduced |
| FMR LLC | 6,573 | $13.3K | 0.00% | −8,272−55.7% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 10,558 | $21.2K | 0.00% | −81−0.8% | Reduced |
| Geneos Wealth Management Inc. | 10,800 | $21.9K | 0.00% | +3,000+38.5% | Added |
| Vanguard Global Advisers, LLC | 11,169 | $22.7K | 0.00% | +11,169 | New |
| Charles Schwab Investment Management Inc | 12,085 | $24.5K | 0.00% | 00.0% | Unchanged |
| Colony Group, LLC | 12,156 | $24.7K | 0.00% | 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 |
| Riverview Capital Advisers, LLC | 12,669 | $25.7K | 0.01% | 00.0% | Unchanged |
| UBS Group AG | 14,869 | $30.2K | 0.00% | −10,326−41.0% | Reduced |
| XTX Topco Ltd | 16,491 | $33.5K | 0.00% | +16,491 | New |
| Goldman Sachs Group Inc | 18,472 | $37.5K | 0.00% | −10,127−35.4% | Reduced |
| Dimensional Fund Advisors LP | 19,535 | $39.3K | 0.00% | −3,399−14.8% | Reduced |
| Qube Research & Technologies Ltd | 19,917 | $40.4K | 0.00% | −9,065−31.3% | Reduced |
| Two Sigma Investments, LP | 21,964 | $44.6K | 0.00% | 00.0% | Unchanged |
| Catalyst Funds Management Pty Ltd | 23,564 | $47.8K | 0.01% | +23,564 | New |
| Cetera Investment Advisers | 25,000 | $50.8K | 0.00% | 00.0% | Unchanged |
| Birch Hill Investment Advisors LLC | 27,293 | $55.4K | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 31,428 | $63.8K | 0.00% | −4,894−13.5% | Reduced |
| Barclays PLC | 31,967 | $64.9K | 0.00% | −4,755−12.9% | Reduced |
| HighTower Advisors, LLC | 42,234 | $85.7K | 0.00% | 00.0% | Unchanged |
| Twelve Points Wealth Management LLC | 43,388 | $88.1K | 0.02% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 45,705 | $92.8K | 0.00% | 00.0% | Unchanged |
| Ballentine Partners, LLC | 49,664 | $100.8K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 53,908 | $109.4K | 0.00% | −14,918−21.7% | Reduced |
| Requisite Capital Management, LLC | 55,648 | $113.0K | 0.02% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 60,927 | $123.7K | 0.00% | −14,340−19.1% | Reduced |
| Perigon Wealth Management, LLC | 72,685 | $147.6K | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 91,504 | $185.8K | 0.00% | −21,674−19.2% | Reduced |
| Northern Trust Corp | 96,535 | $196.0K | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 104,973 | $213.0K | 0.01% | −2,262−2.1% | Reduced |
| Morgan Stanley | 105,017 | $213.2K | 0.00% | +24,049+29.7% | Added |
| State Street Corp | 124,792 | $253.3K | 0.00% | 00.0% | Unchanged |
| Vanguard Fiduciary Trust Co | 169,661 | $344.4K | 0.00% | +169,661 | New |
| BlackRock, Inc. | 196,105 | $398.1K | 0.00% | +9,354+5.0% | Added |
| AWM Investment Company, Inc. | 207,382 | $421.0K | 0.05% | 00.0% | Unchanged |
| Citadel Advisors LLC | 248,909 | $505.3K | 0.00% | −458,705−64.8% | Reduced |
| Sanders Morris Harris LLC | 314,950 | $639.3K | 0.10% | +314,950 | New |
| Geode Capital Management, LLC | 363,617 | $738.5K | 0.00% | +28,978+8.7% | Added |
| Captrust Financial Advisors | 536,761 | $1.09M | 0.00% | −50.0% | Reduced |
| Vanguard Capital Management LLC | 1,204,115 | $2.44M | 0.00% | +1,204,115 | New |
| Vivo Capital, LLC | 1,650,440 | $3.35M | 0.28% | 00.0% | Unchanged |
| PSP Research LLC | 2,396,685 | $4.87M | 3.44% | +2,396,685 | New |
| Standard Life Aberdeen plc | 2,550,775 | $5.18M | 0.01% | +271,076+11.9% | Added |
| Whetstone Capital Advisors, LLC | 3,306,889 | $6.71M | 2.53% | −152,824−4.4% | Reduced |
| Baker Bros. Advisors LP | 5,498,170 | $11.2M | 0.06% | 00.0% | Unchanged |
| 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 |