SERA PROGNOSTICS INC-A (SERA) Top Institutional Shareholders
SERA PROGNOSTICS INC-A (SERA) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $40.47M in SERA holdings during the latest filing period.
Baker Bros. Advisors Lp is currently the largest disclosed institutional shareholder of SERA tracked by InsiderSet, reporting ownership valued at approximately $11.16M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $10.39M, representing an estimated loss of -6.90% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 91% of the total disclosed SERA value among the investors covered in this analysis. Major shareholders include Baker Bros. Advisors Lp, Whetstone Capital Advisors, Llc, Aberdeen Group Plc, and several other long-term asset managers with concentrated positions in SERA PROGNOSTICS INC-A (SERA).
This page ranks the largest institutional SERA shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
55
Total Reported Value
$40.47M
Largest Holder
Baker Bros. Advisors Lp
Largest Position
$11.16M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
69
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Baker Bros. Advisors Lp | 0.06% | 5,498,170 | $11,161,285 | $10,391,541 | -$769,744 | -6.90% | |
| Whetstone Capital Advisors, Llc | 2.53% | 3,306,889 | $6,712,985 | $6,250,020 | -$462,965 | -6.90% | |
| Aberdeen Group Plc | 0.01% | 2,550,775 | $5,178,073 | $4,820,965 | -$357,108 | -6.90% | |
| Psp Research Llc | 3.44% | 2,396,685 | $4,865,271 | $4,529,735 | -$335,536 | -6.90% | |
| Vivo Capital, Llc | 0.28% | 1,650,440 | $3,350,393 | $3,119,332 | -$231,061 | -6.90% | |
| Vanguard Capital Management Llc | 0.00% | 1,204,115 | $2,444,353 | $2,275,777 | -$168,576 | -6.90% | |
| Captrust Financial Advisors | 0.00% | 536,761 | $1,089,625 | $1,014,478 | -$75,147 | -6.90% | |
| Geode Capital Management, Llc | 0.00% | 363,617 | $738,511 | $687,236 | -$51,275 | -6.94% | |
| Sanders Morris Harris Llc | 0.10% | 314,950 | $639,349 | $595,256 | -$44,094 | -6.90% | |
| Citadel Advisors Llc | 0.00% | 248,909 | $505,285 | $470,438 | -$34,847 | -6.90% | |
| Awm Investment Company, Inc. | 0.05% | 207,382 | $420,985 | $391,952 | -$29,033 | -6.90% | |
| Blackrock, Inc. | 0.00% | 196,105 | $398,093 | $370,638 | -$27,455 | -6.90% | |
| Vanguard Fiduciary Trust Co | 0.00% | 169,661 | $344,412 | $320,659 | -$23,753 | -6.90% | |
| State Street Corp | 0.00% | 124,792 | $253,328 | $235,857 | -$17,471 | -6.90% | |
| Morgan Stanley | 0.00% | 105,017 | $213,184 | $198,482 | -$14,702 | -6.90% | |
| Northern Trust Corp | 0.00% | 96,535 | $195,966 | $182,451 | -$13,515 | -6.90% | |
| Segall Bryant & Hamill, Llc | 0.00% | 100,000 | $193,000 | $189,000 | -$4,000 | -2.07% | |
| Millennium Management Llc | 0.00% | 91,504 | $185,753 | $172,943 | -$12,810 | -6.90% | |
| Perigon Wealth Management, Llc | 0.00% | 72,685 | $147,551 | $137,375 | -$10,176 | -6.90% | |
| Bank Of New York Mellon Corp | 0.00% | 60,927 | $123,682 | $115,152 | -$8,530 | -6.90% | |
| Requisite Capital Management, Llc | 0.02% | 55,648 | $112,965 | $105,175 | -$7,790 | -6.90% | |
| Jane Street Group, Llc | 0.00% | 53,908 | $109,433 | $101,886 | -$7,547 | -6.90% | |
| Ballentine Partners, Llc | 0.00% | 49,664 | $100,818 | $93,865 | -$6,953 | -6.90% | |
| Bridgeway Capital Management, Llc | 0.00% | 45,705 | $92,781 | $86,382 | -$6,399 | -6.90% | |
| Twelve Points Wealth Management Llc | 0.02% | 43,388 | $88,078 | $82,003 | -$6,075 | -6.90% | |
| Hightower Advisors, Llc | 0.00% | 42,234 | $85,735 | $79,822 | -$5,913 | -6.90% | |
| Barclays Plc | 0.00% | 31,967 | $64,893 | $60,418 | -$4,475 | -6.90% | |
| Squarepoint Ops Llc | 0.00% | 31,428 | $63,799 | $59,399 | -$4,400 | -6.90% | |
| Birch Hill Investment Advisors Llc | 0.00% | 27,293 | $55,405 | $51,584 | -$3,821 | -6.90% | |
| Cetera Investment Advisers | 0.00% | 25,000 | $50,750 | $47,250 | -$3,500 | -6.90% | |
| Catalyst Funds Management Pty Ltd | 0.01% | 23,564 | $47,835 | $44,536 | -$3,299 | -6.90% | |
| Two Sigma Investments, Lp | 0.00% | 21,964 | $44,587 | $41,512 | -$3,075 | -6.90% | |
| Qube Research & Technologies Ltd | 0.00% | 19,917 | $40,432 | $37,643 | -$2,789 | -6.90% | |
| Dimensional Fund Advisors Lp | 0.00% | 19,535 | $39,256 | $36,921 | -$2,335 | -5.95% | |
| Goldman Sachs Group Inc | 0.00% | 18,472 | $37,498 | $34,912 | -$2,586 | -6.90% | |
| Xtx Topco Ltd | 0.00% | 16,491 | $33,477 | $31,168 | -$2,309 | -6.90% | |
| Ubs Group Ag | 0.00% | 14,869 | $30,184 | $28,102 | -$2,082 | -6.90% | |
| Riverview Capital Advisers, Llc | 0.01% | 12,669 | $25,719 | $23,944 | -$1,775 | -6.90% | |
| Arkadios Wealth Advisors | 0.00% | 12,400 | $25,172 | $23,436 | -$1,736 | -6.90% | |
| Wagner Wealth Management, Llc | 0.01% | 12,400 | $25,172 | $23,436 | -$1,736 | -6.90% | |
| Focus Partners Wealth | 0.00% | 12,156 | $24,677 | $22,975 | -$1,702 | -6.90% | |
| Charles Schwab Investment Management Inc | 0.00% | 12,085 | $24,533 | $22,841 | -$1,692 | -6.90% | |
| Vanguard Global Advisers, Llc | 0.00% | 11,169 | $22,673 | $21,109 | -$1,564 | -6.90% | |
| Geneos Wealth Management Inc. | 0.00% | 10,800 | $21,924 | $20,412 | -$1,512 | -6.90% | |
| Wealth Enhancement Advisory Services, Llc | 0.00% | 10,558 | $21,222 | $19,955 | -$1,267 | -5.97% | |
| Fmr Llc | 0.00% | 6,573 | $13,343 | $12,423 | -$920 | -6.90% | |
| Cwm, Llc | 0.00% | 1,003 | $2,036 | $1,896 | -$140 | -6.89% | |
| Optiver Holding B.V. | 0.00% | 412 | $836 | $779 | -$57 | -6.86% | |
| Bnp Paribas Financial Markets | 0.00% | 236 | $479 | $446 | -$33 | -6.88% | |
| Nisa Investment Advisors, Llc | 0.00% | 129 | $262 | $244 | -$18 | -6.94% |
Frequently asked questions about SERA
Who owns the most SERA stock?
The largest holders of SERA are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for SERA PROGNOSTICS INC-A (SERA).
Is SERA widely held by superinvestors?
Many widely followed stocks like SERA appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly SERA is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.