SERA · Sera Prognostics, Inc.
$2.03
-0.02 (-0.98%)
At close · Jul 28
Market Cap
$79.49M
Shares
39.16M
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
The Jun 30, 2026 filing window is
still open — showing the latest known positions. Funds that have not filed yet
carry their prior-quarter positions; a fund that filed without this stock counts
as sold out.
Holders: 54
Total Value: $34,992,423
Total Shares: 17,247,989
Institutional Ownership Trend
20 quarters
Holder Concentration
Across 56 13F filersTop Holder
27.5%
of institutional value
Top 5
77.2%
of institutional value
Top 10
90.6%
of institutional value
HHI
1,465
Broadly held
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Large BAKER BROS. ADVISORS LP | $11,161,285 | 31.90% | 5,498,170 | Shares | Sole | 2026-05-15 | ||||
| Small Whetstone Capital Advisors, LLC | $6,712,984 | 19.18% | 3,306,889 | Shares | Sole | 2026-05-15 | ||||
| Large Aberdeen Group plc | $5,178,073 | 14.80% | 2,550,775 | Shares | Defined | 2026-04-29 | ||||
| Mid Vivo Capital, LLC | $3,350,393 | 9.57% | 1,650,440 | Shares | Sole | 2026-05-20 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $2,444,353 | 6.99% | 1,204,115 | Shares | Defined | 2026-05-15 | ||||
| Large CAPTRUST FINANCIAL ADVISORS | $1,089,624 | 3.11% | 536,761 | Shares | Sole | 2026-05-15 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $738,142 | 2.11% | 363,617 | Shares | Defined | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $505,285 | 1.44% | 248,909 | Shares | Defined | 2026-05-15 | ||||
| Small AWM Investment Company, Inc. | $420,985 | 1.20% | 207,382 | Shares | Sole | 2026-05-15 | ||||
| Mega BlackRock, Inc. | $398,092 | 1.14% | 196,105 | Shares | Sole | 2026-05-13 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $344,411 | 0.98% | 169,661 | Shares | Defined | 2026-05-08 | ||||
| Mega STATE STREET CORP | $253,327 | 0.72% | 124,792 | Shares | Defined | 2026-05-15 | ||||
| Mega MORGAN STANLEY | $213,184 | 0.61% | 105,017 | Shares | Defined | 2026-05-15 | ||||
| Mid GSA CAPITAL PARTNERS LLP | $213,095 | 0.61% | 104,973 | Shares | Sole | 2026-05-08 | ||||
| Mega NORTHERN TRUST CORP Bank | $195,966 | 0.56% | 96,535 | Shares | Defined | 2026-05-14 | ||||
| Mega MILLENNIUM MANAGEMENT LLC | $185,753 | 0.53% | 91,504 | Shares | Sole | 2026-05-15 | ||||
| Mid Perigon Wealth Management, LLC | $147,550 | 0.42% | 72,685 | Shares | Sole | 2026-04-10 | ||||
| Mega Bank of New York Mellon Corp Bank | $123,681 | 0.35% | 60,927 | Shares | Defined | 2026-05-05 | ||||
| Small Requisite Capital Management, LLC | $112,965 | 0.32% | 55,648 | Shares | Sole | 2026-05-14 | ||||
| Mega JANE STREET GROUP, LLC | $109,432 | 0.31% | 53,908 | Shares | Defined | 2026-05-12 | ||||
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC | $92,781 | 0.27% | 45,705 | Shares | Sole | 2026-05-15 | ||||
| Mid Ballentine Partners, LLC | $90,388 | 0.26% | 49,664 | Shares | Sole | 2026-07-17 | ||||
| Small Twelve Points Wealth Management LLC | $88,077 | 0.25% | 43,388 | Shares | Sole | 2026-04-14 | ||||
| Large HighTower Advisors, LLC | $85,735 | 0.25% | 42,234 | Shares | Sole | 2026-05-05 | ||||
| Mega BARCLAYS PLC | $64,893 | 0.19% | 31,967 | Shares | Defined | 2026-05-15 | ||||
| Large Squarepoint Ops LLC | $63,798 | 0.18% | 31,428 | Shares | Defined | 2026-05-15 | ||||
| Large Cetera Investment Advisers | $50,750 | 0.15% | 25,000 | Shares | Sole | 2026-05-13 | ||||
| Mid Birch Hill Investment Advisors LLC | $49,673 | 0.14% | 27,293 | Shares | Sole | 2026-07-21 | ||||
| Small Catalyst Funds Management Pty Ltd | $47,834 | 0.14% | 23,564 | Shares | Sole | 2026-05-11 | ||||
| Mega TWO SIGMA INVESTMENTS, LP | $44,586 | 0.13% | 21,964 | Shares | Sole | 2026-05-15 | ||||
| Large Qube Research & Technologies Ltd | $40,431 | 0.12% | 19,917 | Shares | Sole | 2026-05-15 | ||||
| Mega DIMENSIONAL FUND ADVISORS LP | $39,655 | 0.11% | 19,535 | Shares | Sole | 2026-05-07 | ||||
| Mega GOLDMAN SACHS GROUP INC | $37,498 | 0.11% | 18,472 | Shares | Defined | 2026-05-15 | ||||
| Mid XTX Topco Ltd | $33,476 | 0.10% | 16,491 | Shares | Defined | 2026-05-15 | ||||
| Mega UBS Group AG | $30,184 | 0.09% | 14,869 | Shares | Defined | 2026-05-05 | ||||
| Mega CITADEL ADVISORS LLC | $30,044 | 0.09% | 14,800 | Call | Defined | 2026-05-15 | ||||
| Small Riverview Capital Advisers, LLC | $25,718 | 0.07% | 12,669 | Shares | Sole | 2026-05-14 | ||||
| Mid Arkadios Wealth Advisors | $25,172 | 0.07% | 12,400 | Shares | Sole | 2026-05-18 | ||||
| Large Focus Partners Wealth | $24,676 | 0.07% | 12,156 | Shares | Sole | 2026-05-15 | ||||
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $24,532 | 0.07% | 12,085 | Shares | Sole | 2026-05-15 | ||||
| Mega Vanguard Global Advisers, LLC | $22,673 | 0.06% | 11,169 | Shares | Defined | 2026-05-08 | ||||
| Small Wagner Wealth Management, LLC | $22,568 | 0.06% | 12,400 | Shares | Sole | 2026-07-24 | ||||
| Mid Geneos Wealth Management Inc. | $21,924 | 0.06% | 10,800 | Shares | Sole | 2026-05-05 | ||||
| Large WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | $19,117 | 0.05% | 10,504 | Shares | Sole | 2026-07-15 | ||||
| Mega FMR LLC | $13,343 | 0.04% | 6,573 | Shares | Defined | 2026-05-15 | ||||
| Large CWM, LLC | $2,036 | 0.01% | 1,003 | Shares | Sole | 2026-05-14 | ||||
| Mid Optiver Holding B.V. | $836 | 0.00% | 412 | Shares | Defined | 2026-05-15 | ||||
| Mega BNP PARIBAS ARBITRAGE, SA | $479 | 0.00% | 236 | Shares | Defined | 2026-05-12 | ||||
| Mega JPMORGAN CHASE & CO | $450 | 0.00% | 222 | Shares | Defined | 2026-05-13 | ||||
| Large NISA INVESTMENT ADVISORS, LLC | $261 | 0.00% | 129 | Shares | Sole | 2026-04-30 | ||||
| Small Silicon Valley Capital Partners | $115 | 0.00% | 57 | Shares | Sole | 2026-05-19 | ||||
| Mega ROYAL BANK OF CANADA Bank | $87 | 0.00% | 43 | Shares | Sole | 2026-05-15 | ||||
| Mid Advisory Services Network, LLC | $38 | 0.00% | 19 | Shares | Sole | 2026-05-15 | ||||
| Small Caitong International Asset Management Co., Ltd | $8 | 0.00% | 4 | Shares | Sole | 2026-05-11 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $7 | 0.00% | 4 | Shares | Defined | 2026-07-23 | ||||
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