SERA PROGNOSTICS, INC. (SERA) — Institutional Holders, Q2 2026
47 institutional investment managers reported a SERA position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $31.0M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
SERA in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- abrdn plcAdded · +202,750 sh+$369.0K
- VANGUARD CAPITAL MANAGEMENTAdded · +93,677 sh+$170.5K
- Qube Research & Technologies LtdAdded · +30,954 sh+$56.3K
- BlackRockAdded · +25,264 sh+$46.0K
- Catalyst Funds Management Pty LtdAdded · +15,326 sh+$27.9K
Biggest sellers
- PSP ResearchSold out · -2,396,685 sh-$4.4M
- SANDERS MORRIS HARRISSold out · -314,950 sh-$573.2K
- CITADEL ADVISORSTrimmed · -207,498 sh-$377.6K
- GSA CAPITAL PARTNERS LLPSold out · -104,973 sh-$191.1K
- SEGALL BRYANT & HAMILLSold out · -100,000 sh-$182.0K
SERA 13F holders ranked 1–47 of 47
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | BAKER BROS. ADVISORS#1 · 5,498,170 sh | 5,498,170 | $10.0M | 0.05% | 0.0% |
| 2 | Whetstone Capital Advisors#2 · 3,306,889 sh | 3,306,889 | $6.0M | 1.58% | 0.0% |
| 3 | abrdn plc#3 · 2,753,525 sh | 2,753,525 | $5.0M | <0.01% | +7.9% |
| 4 | Vivo Capital#4 · 1,650,440 sh | 1,650,440 | $3.0M | 0.27% | 0.0% |
| 5 | VANGUARD CAPITAL MANAGEMENT#5 · 1,297,792 sh | 1,297,792 | $2.4M | <0.01% | +7.8% |
| 6 | CAPTRUST FINANCIAL ADVISORS#6 · 535,755 sh | 535,755 | $975.1K | <0.01% | -0.2% |
| 7 | GEODE CAPITAL MANAGEMENT#7 · 348,967 sh | 348,967 | $635.5K | 0.00% | -4.0% |
| 8 | BlackRock#8 · 221,369 sh | 221,369 | $402.9K | 0.00% | +12.9% |
| 9 | AWM Investment Company#9 · 207,382 sh | 207,382 | $377.4K | 0.03% | 0.0% |
| 10 | VANGUARD FIDUCIARY#10 · 170,908 sh | 170,908 | $311.1K | <0.01% | +0.7% |
| 11 | STATE STREET#11 · 124,792 sh | 124,792 | $227.1K | 0.00% | 0.0% |
| 12 | MILLENNIUM MANAGEMENT#12 · 73,986 sh | 73,986 | $134.7K | 0.00% | -19.1% |
| 13 | Perigon Wealth Management#13 · 72,685 sh | 72,685 | $132.3K | — | 0.0% |
| 14 | NORTHERN#14 · 68,595 sh | 68,595 | $124.8K | 0.00% | -28.9% |
| 15 | Bank of New York Mellon#15 · 60,927 sh | 60,927 | $110.9K | 0.00% | 0.0% |
| 16 | BRIDGEWAY CAPITAL MANAGEMENT#16 · 55,705 sh | 55,705 | $101.4K | <0.01% | +21.9% |
| 17 | Requisite Capital Management#17 · 55,648 sh | 55,648 | $101.3K | 0.02% | 0.0% |
| 18 | MORGAN STANLEY#18 · 50,972 sh | 50,972 | $92.8K | 0.00% | -51.5% |
| 19 | Qube Research & Technologies Ltd#19 · 50,871 sh | 50,871 | $92.6K | <0.01% | +155.4% |
| 20 | Ballentine Partners#20 · 49,664 sh | 49,664 | $90.4K | <0.01% | 0.0% |
| 21 | Twelve Points Wealth Management#21 · 43,388 sh | 43,388 | $79.0K | 0.02% | 0.0% |
| 22 | HighTower Advisors#22 · 42,234 sh | 42,234 | $76.9K | <0.01% | 0.0% |
| 23 | CITADEL ADVISORS#23 · 41,411 sh | 41,411 | $75.4K | 0.00% | -83.4% |
| 24 | Catalyst Funds Management Pty Ltd#24 · 38,890 sh | 38,890 | $70.8K | <0.01% | +65.0% |
| 25 | GOLDMAN SACHS GROUP#25 · 32,541 sh | 32,541 | $59.2K | 0.00% | +76.2% |
| 26 | DIMENSIONAL FUND ADVISORS#26 · 29,499 sh | 29,499 | $53.7K | 0.00% | +51.0% |
| 27 | Birch Hill Investment Advisors#27 · 27,293 sh | 27,293 | $49.7K | — | 0.0% |
| 28 | Cetera Investment Advisers#28 · 25,000 sh | 25,000 | $45.5K | 0.00% | 0.0% |
| 29 | XTX Topco Ltd#29 · 16,808 sh | 16,808 | $30.6K | <0.01% | +1.9% |
| 30 | TWO SIGMA INVESTMENTS#30 · 16,221 sh | 16,221 | $29.5K | 0.00% | -26.1% |
| 31 | Riverview Capital Advisers#31 · 12,669 sh | 12,669 | $23.1K | <0.01% | 0.0% |
| 32 | Wagner Wealth Management#32 · 12,400 sh | 12,400 | $22.6K | — | 0.0% |
| 33 | Focus Partners Wealth#33 · 12,156 sh | 12,156 | $22.1K | 0.00% | 0.0% |
| 34 | WEALTH ENHANCEMENT ADVISORY SERVICES#34 · 10,504 sh | 10,504 | $20.7K | — | -0.5% |
| 35 | UBS Group AG#35 · 11,309 sh | 11,309 | $20.6K | 0.00% | -23.9% |
| 36 | Vanguard Global Advisers#36 · 11,169 sh | 11,169 | $20.3K | 0.00% | 0.0% |
| 37 | Geneos Wealth Management#37 · 10,800 sh | 10,800 | $19.7K | <0.01% | 0.0% |
| 38 | BARCLAYS PLC#38 · 3,179 sh | 3,179 | $5.8K | 0.00% | -90.1% |
| 39 | FMR#39 · 2,539 sh | 2,539 | $4.6K | 0.00% | -61.4% |
| 40 | Global Retirement Partners#40 · 1,000 sh | 1,000 | $1.8K | 0.00% | — |
| 41 | JPMORGAN CHASE#41 · 222 sh | 222 | $402.00 | 0.00% | 0.0% |
| 42 | BNP PARIBAS FINANCIAL MARKETS#42 · 186 sh | 186 | $339.00 | 0.00% | -21.2% |
| 43 | NISA INVESTMENT ADVISORS#43 · 129 sh | 129 | $235.00 | — | 0.0% |
| 44 | Silicon Valley Capital Partners#44 · 57 sh | 57 | $104.00 | 0.00% | 0.0% |
| 45 | SBI Securities , Ltd.#45 · 4 sh | 4 | $7.00 | — | -42.9% |
| 46 | Caitong International Asset Management , Ltd#46 · 4 sh | 4 | $7.00 | 0.00% | 0.0% |
| 47 | ROYAL BANK OF CANADA#47 · 45 sh | 45 | $0.00 | 0.00% | +4.7% |
Funds that sold out of SERA in Q2 2026 (10)
Held SERA at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| PSP Research2,396,685 sh | 2,396,685 | $4.9M |
| SANDERS MORRIS HARRIS314,950 sh | 314,950 | $639.3K |
| GSA CAPITAL PARTNERS LLP104,973 sh | 104,973 | $213.0K |
| SEGALL BRYANT & HAMILL100,000 sh | 100,000 | $193.0K |
| JANE STREET GROUP53,908 sh | 53,908 | $109.4K |
| Squarepoint Ops31,428 sh | 31,428 | $63.8K |
| Arkadios Wealth Advisors12,400 sh | 12,400 | $25.2K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT12,085 sh | 12,085 | $24.5K |
| Optiver Holding B.V.412 sh | 412 | $836.00 |
| Advisory Services Network19 sh | 19 | $39.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.