Sera Prognostics, Inc. (SERA)
Nasdaq: SERA · Services-Medical Laboratories · Salt Lake City, UT · filing with the SEC since 2011
Who owns Sera Prognostics, Inc.
As filed with the SECHolders of 5% or more
4
Baker Bros. Advisors LP holds 16.1% of Class A Common Stock, $0.0001 par value per share, as its SCHEDULE 13D filed Feb 14, 2025 says.
Directors and officers
17
report now, of 26 people on the record since 2021. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 4 named at left.
Holders of 5% or moreshare of the class, as filed
Baker Bros. Advisors LP
SCHEDULE 13D · filed Feb 14, 2025 · Class A Common Stock, $0.0001 par value per share
Whetstone Capital Advisors, LLC
SCHEDULE 13G/A · filed May 1, 2026 · Class A Common Stock, par value $0.0001 per share · 9.2% in Jan 16, 2026
Chione Ltd.
SCHEDULE 13D/A · filed Feb 14, 2025 · Class A Common Stock
Aberdeen Group plc
SCHEDULE 13G/A · filed Jul 15, 2026 · Class A Common Stock $0.0001 par value per share · 6.07% in Aug 5, 2025
Vivo Capital IX, LLC
SCHEDULE 13G/A · filed May 15, 2025 · Class A common stock, par value $ 0.0001 per share · reported falling below 5%
RA Capital Management, L.P.
SCHEDULE 13G/A · filed Aug 14, 2025 · Class A Common Stock, $0.0001 par value per share · reported falling below 5%
What SERA reports owning in othersstakes of 5% or more, and other ties
Sera Prognostics, Inc. reports no stake in another company in the record.
Insider tradesForm 4
52sales
0purchases
9sales on a scheduled plan
10people selling
$700,000sold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Oct 13, 2025 to Oct 13, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Oct 13, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window10 of 34 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Lindgardt Zhenya | Chief Executive Officer | 9 | $300,000 | 0 | 0 | $0 |
| Aerts Austin | Chief Financial Officer | 8 | $100,000 | 0 | 0 | $0 |
| Harrison Robert Gardner | Chief Information Officer | 9 | $100,000 | 5 | 0 | $0 |
| Kearney Paul | Chief Data Officer | 6 | $100,000 | 1 | 0 | $0 |
| Inglis Tiffany Eul Davis | Chief Medical Officer | 3 | $0 | 0 | 0 | $0 |
| Anderson Dyaarl Lee Jr. | Chief Commercial Officer | 2 | $0 | 0 | 0 | $0 |
| Boniface John J. | Chief Scientific Officer | 4 | $0 | 0 | 0 | $0 |
| Jackson Benjamin | General Counsel | 6 | $0 | 0 | 0 | $0 |
| Lawrence Sandra Aj | director | 3 | $0 | 3 | 0 | $0 |
| Mirza Mansoor Raza | director | 2 | $0 | 0 | 0 | $0 |