Sera Prognostics, Inc. 13F holders
47 funds reported a position in Sera Prognostics, Inc. in their 13F for the quarter ended 30 June 2026, together 17.1 million shares worth $31.0 million. Against the quarter before, 0 opened a position, 11 added, 13 trimmed and 9 sold out; together they sold a net 2.9 million shares. The largest holders: Baker Bros. Advisors LP, Whetstone Capital Advisors, LLC and Aberdeen Group plc.
Funds holding47-9 on Q1 2026
Shares they held17.1Mworth $31.0 million
Net sold on the quarter2.9M sharesabout $5.3 million at the funds' values
Funds buying to selling11 to 22opened or added, to cut or sold
Added 11Held 22Trimmed 13Sold out 9
What each fund did in SERA against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in SERA in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,405 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 12 reported a position in Sera Prognostics, Inc.: 4 opened one, 0 added, 0 trimmed and 0 sold out, a net 2.4 million shares bought.
| Fund | Change in shares | Shares now | Status | Filing |
|---|---|---|---|---|
| PSP Research LLC | +2,396,685 | 2,396,685 | new | 13F |
| Diversify Advisory Services, LLC | +10,591 | 10,591 | new | 13F |
| Diversify Wealth Management, LLC | +10,591 | 10,591 | new | 13F |
| Toth Financial Advisory Corp. | +255 | 255 | new | 13F |
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 5 reported a position in Sera Prognostics, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Geode Capital Management, 348,967 shares worth $635,473, 0.0% of its reported book. In the quarter, 0 funds added or opened a position and 5 trimmed or sold out; together they sold a net 249,443 shares, about $453,988 at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Geode Capital Management | 348,967 | $635,473 | 0.0% | -14,650 | trimmed | 30 June 2026 | 13F |
| Millennium Management | 73,986 | $134,655 | 0.0% | -17,518 | trimmed | 30 June 2026 | 13F |
| Citadel Advisors | 41,411 | $75,368 | 0.0% | -207,498 | trimmed | 30 June 2026 | 13F |
| Two Sigma Investments | 16,221 | $29,522 | 0.0% | -5,743 | trimmed | 30 June 2026 | 13F |
| FMR LLC | 2,539 | $4,621 | 0.0% | -4,034 | trimmed | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| Baker Bros. Advisors LP | 5,498,170 | 32.23% | $10.0 million | 0.05% | no change | 13F |
| Whetstone Capital Advisors, LLC | 3,306,889 | 19.39% | $6.0 million | 1.59% | no change | 13F |
| Aberdeen Group plc | 2,753,525 | 16.14% | $5.0 million | 0.01% | +202,750 | 13F |
| Vivo Capital, LLC | 1,650,440 | 9.68% | $3.0 million | 0.27% | no change | 13F |
| Vanguard Capital Management LLC | 1,297,792 | 7.61% | $2.4 million | 0.00% | +93,677 | 13F |
| Captrust Financial Advisors | 535,755 | 3.14% | $975,074 | 0.00% | -1,006 | 13F |
| Geode Capital Management, LLC | 348,967 | 2.05% | $635,473 | 0.00% | -14,650 | 13F |
| BlackRock, Inc. | 221,369 | 1.30% | $402,891 | 0.00% | +25,264 | 13F |
| AWM Investment Company, Inc. | 207,382 | 1.22% | $377,435 | 0.03% | no change | 13F |
| Vanguard Fiduciary Trust Co. | 170,908 | 1.00% | $311,053 | 0.00% | +1,247 | 13F |
| State Street Corp. | 124,792 | 0.73% | $227,121 | 0.00% | no change | 13F |
| Millennium Management LLC | 73,986 | 0.43% | $134,655 | 0.00% | -17,518 | 13F |
| Perigon Wealth Management, LLC | 72,685 | 0.43% | $132,287 | 0.00% | no change | 13F |
| Northern Trust Corp. | 68,595 | 0.40% | $124,843 | 0.00% | -27,940 | 13F |
| Bank of New York Mellon Corp | 60,927 | 0.36% | $110,887 | 0.00% | no change | 13F |
| Bridgeway Capital Management, LLC | 55,705 | 0.33% | $101,383 | 0.00% | +10,000 | 13F |
| Requisite Capital Management, LLC | 55,648 | 0.33% | $101,279 | 0.02% | no change | 13F |
| Morgan Stanley | 50,972 | 0.30% | $92,769 | 0.00% | -54,045 | 13F |
| Qube Research & Technologies Ltd | 50,871 | 0.30% | $92,585 | 0.00% | +30,954 | 13F |
| Ballentine Partners, LLC | 49,664 | 0.29% | $90,388 | 0.00% | no change | 13F |
| Twelve Points Wealth Management LLC | 43,388 | 0.25% | $78,966 | 0.02% | no change | 13F |
| HighTower Advisors, LLC | 42,234 | 0.25% | $76,866 | 0.00% | no change | 13F |
| Citadel Advisors LLC | 41,411 | 0.24% | $75,368 | 0.00% | -207,498 | 13F |
| Catalyst Funds Management Pty Ltd | 38,890 | 0.23% | $70,780 | 0.00% | +15,326 | 13F |
| Goldman Sachs Group Inc. | 32,541 | 0.19% | $59,225 | 0.00% | +14,069 | 13F |
| Dimensional Fund Advisors LP | 29,499 | 0.17% | $53,652 | 0.00% | +9,964 | 13F |
| Birch Hill Investment Advisors LLC | 27,293 | 0.16% | $49,673 | 0.00% | no change | 13F |
| Cetera Investment Advisers | 25,000 | 0.15% | $45,500 | 0.00% | no change | 13F |
| XTX Topco Ltd | 16,808 | 0.10% | $30,591 | 0.00% | +317 | 13F |
| Two Sigma Investments, LP | 16,221 | 0.10% | $29,522 | 0.00% | -5,743 | 13F |
| Riverview Capital Advisers, LLC | 12,669 | 0.07% | $23,058 | 0.01% | no change | 13F |
| Wagner Wealth Management, LLC | 12,400 | 0.07% | $22,568 | 0.00% | no change | 13F |
| Focus Partners Wealth | 12,156 | 0.07% | $22,124 | 0.00% | no change | 13F |
| Wealth Enhancement Advisory Services, LLC | 10,504 | 0.06% | $20,693 | 0.00% | -54 | 13F |
| UBS Group AG | 11,309 | 0.07% | $20,583 | 0.00% | -3,560 | 13F |
| Vanguard Global Advisers, LLC | 11,169 | 0.07% | $20,328 | 0.00% | no change | 13F |
| Geneos Wealth Management Inc. | 10,800 | 0.06% | $19,656 | 0.00% | no change | 13F |
| Barclays PLC | 3,179 | 0.02% | $5,786 | 0.00% | -28,788 | 13F |
| FMR LLC | 2,539 | 0.01% | $4,621 | 0.00% | -4,034 | 13F |
| Global Retirement Partners, LLC | 1,000 | 0.01% | $1,820 | 0.00% | first 13F | 13F |
| JPMorgan Chase & Co. | 222 | 0.00% | $402 | 0.00% | no change | 13F |
| BNP Paribas Financial Markets | 186 | 0.00% | $339 | 0.00% | -50 | 13F |
| Nisa Investment Advisors, LLC | 129 | 0.00% | $235 | 0.00% | no change | 13F |
| Silicon Valley Capital Partners | 57 | 0.00% | $104 | 0.00% | no change | 13F |
| Caitong International Asset Management Co., Ltd | 4 | 0.00% | $7 | 0.00% | no change | 13F |
| SBI Securities Co., Ltd. | 4 | 0.00% | $7 | 0.00% | -3 | 13F |
| Advisory Services Network, LLC | 0 | 0.00% | $0 | 0.00% | sold out | 13F |
| Arkadios Wealth Advisors | 0 | 0.00% | $0 | 0.00% | sold out | 13F |
| Charles Schwab Investment Management Inc. | 0 | 0.00% | $0 | 0.00% | sold out | 13F |
| Gsa Capital Partners LLP | 0 | 0.00% | $0 | 0.00% | sold out | 13F |
The 50 largest of the 47 funds that reported a position in SERA in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 15 July 2026 | 13G/A | Aberdeen Group plc and 3 others | 2.8 million | 7.2% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 1 May 2026 | 13G/A | Whetstone Capital Advisors, LLC and 3 others | 3.3 million | 8.6% | 31 March 2026 | passive, under 20% (13d-1(c)) | EDGAR |
| 16 January 2026 | 13G/A | Whetstone Capital Advisors, LLC and 3 others | 3.5 million | 9.2% | 31 December 2025 | passive, under 20% (13d-1(c)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 31 August 2026 | 4 | $2.07 | SEC |
| 13 August 2026 | 7,702 | $2.02 | SEC |
| 12 August 2026 | 8,568 | $1.99 | SEC |
| 11 August 2026 | 182 | $2.01 | SEC |
| 7 August 2026 | 21,102 | $2.00 | SEC |
| 6 August 2026 | 24,254 | $2.00 | SEC |
| 5 August 2026 | 25,563 | $1.93 | SEC |
| 4 August 2026 | 314 | $2.10 | SEC |
| 17 July 2026 | 10 | $2.20 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.