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, Q2 2026
Institutional positions in Sera Prognostics, Inc. as of Jun 30, 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
- 47
- −8 vs. Q1 2026
- Shares held
- 17.1M
- −2.89M (−14.5%) vs. Q1 2026
- Total value
- $31.0M
- −$9.44M (−23.3%) vs. Q1 2026
- New holders
- 1
- 11 more added
- Sold out
- 9
- 13 more reduced
1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | $52.4M |
| Q3 2025 | 62 | $55.6M |
| Q2 2025 | 59 | $51.5M |
| Q1 2025 | 71 | $74.4M |
| Q4 2024 | 73 | $147.3M |
| Q3 2024 | 61 | $147.2M |
| Q2 2024 | 65 | $98.2M |
| Q1 2024 | 52 | $134.5M |
| Q4 2023 | 47 | $67.3M |
| 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, Q2 2026
Shares, value and share of portfolio for each institution holding Sera Prognostics, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Baker Bros. Advisors LP | 5,498,170 | $10.0M | 0.05% | 00.0% | Unchanged |
| Whetstone Capital Advisors, LLC | 3,306,889 | $6.02M | 1.59% | 00.0% | Unchanged |
| Standard Life Aberdeen plc | 2,753,525 | $5.01M | 0.01% | +202,750+7.9% | Added |
| Vivo Capital, LLC | 1,650,440 | $3.00M | 0.27% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 1,297,792 | $2.36M | 0.00% | +93,677+7.8% | Added |
| Captrust Financial Advisors | 535,755 | $975.1K | 0.00% | −1,006−0.2% | Reduced |
| Geode Capital Management, LLC | 348,967 | $635.5K | 0.00% | −14,650−4.0% | Reduced |
| BlackRock, Inc. | 221,369 | $402.9K | 0.00% | +25,264+12.9% | Added |
| AWM Investment Company, Inc. | 207,382 | $377.4K | 0.03% | 00.0% | Unchanged |
| Vanguard Fiduciary Trust Co | 170,908 | $311.1K | 0.00% | +1,247+0.7% | Added |
| State Street Corp | 124,792 | $227.1K | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 73,986 | $134.7K | 0.00% | −17,518−19.1% | Reduced |
| Perigon Wealth Management, LLC | 72,685 | $132.3K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 68,595 | $124.8K | 0.00% | −27,940−28.9% | Reduced |
| Bank of New York Mellon Corp | 60,927 | $110.9K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 55,705 | $101.4K | 0.00% | +10,000+21.9% | Added |
| Requisite Capital Management, LLC | 55,648 | $101.3K | 0.02% | 00.0% | Unchanged |
| Morgan Stanley | 50,972 | $92.8K | 0.00% | −54,045−51.5% | Reduced |
| Qube Research & Technologies Ltd | 50,871 | $92.6K | 0.00% | +30,954+155.4% | Added |
| Ballentine Partners, LLC | 49,664 | $90.4K | 0.00% | 00.0% | Unchanged |
| Twelve Points Wealth Management LLC | 43,388 | $79.0K | 0.02% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 42,234 | $76.9K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 41,411 | $75.4K | 0.00% | −207,498−83.4% | Reduced |
| Catalyst Funds Management Pty Ltd | 38,890 | $70.8K | 0.00% | +15,326+65.0% | Added |
| Goldman Sachs Group Inc | 32,541 | $59.2K | 0.00% | +14,069+76.2% | Added |
| Dimensional Fund Advisors LP | 29,499 | $53.7K | 0.00% | +9,964+51.0% | Added |
| Birch Hill Investment Advisors LLC | 27,293 | $49.7K | 0.00% | 00.0% | Unchanged |
| Cetera Investment Advisers | 25,000 | $45.5K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 16,808 | $30.6K | 0.00% | +317+1.9% | Added |
| Two Sigma Investments, LP | 16,221 | $29.5K | 0.00% | −5,743−26.1% | Reduced |
| Riverview Capital Advisers, LLC | 12,669 | $23.1K | 0.01% | 00.0% | Unchanged |
| Wagner Wealth Management, LLC | 12,400 | $22.6K | 0.00% | 00.0% | Unchanged |
| Colony Group, LLC | 12,156 | $22.1K | 0.00% | 00.0% | Unchanged |
| Wealth Enhancement Advisory Services, LLC | 10,504 | $20.7K | 0.00% | −54−0.5% | Reduced |
| UBS Group AG | 11,309 | $20.6K | 0.00% | −3,560−23.9% | Reduced |
| Vanguard Global Advisers, LLC | 11,169 | $20.3K | 0.00% | 00.0% | Unchanged |
| Geneos Wealth Management Inc. | 10,800 | $19.7K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 3,179 | $5.79K | 0.00% | −28,788−90.1% | Reduced |
| FMR LLC | 2,539 | $4.62K | 0.00% | −4,034−61.4% | Reduced |
| Global Retirement Partners, LLC | 1,000 | $1.82K | 0.00% | +1,000 | New |
| JPMorgan Chase & Co | 222 | $402 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 186 | $339 | 0.00% | −50−21.2% | Reduced |
| Nisa Investment Advisors, LLC | 129 | $235 | 0.00% | 00.0% | Unchanged |
| Silicon Valley Capital Partners | 57 | $104 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 4 | $7 | 0.00% | −3−42.9% | Reduced |
| Caitong International Asset Management Co., Ltd | 4 | $7 | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 45 | $0 | 0.00% | +2+4.7% | Added |
| PSP Research LLC | 0 | $0 | 0.00% | −2,396,685−100.0% | Sold out |
| Sanders Morris Harris LLC | 0 | $0 | 0.00% | −314,950−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −104,973−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −53,908−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −31,428−100.0% | Sold out |
| Arkadios Wealth Advisors | 0 | $0 | 0.00% | −12,400−100.0% | Sold out |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −12,085−100.0% | Sold out |
| Optiver Holding B.V. | 0 | $0 | 0.00% | −412−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −19−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |