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NASDAQ: SERA
Sera Prognostics Inc Stock Ownership - Who owns Sera Prognostics?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Sera Prognostics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Robert Gardner HarrisonChief Information Officer2026-01-272,000$2.97
$5.94kSell
Robert Gardner HarrisonChief Information Officer2025-12-302,000$3.00
$6.00kSell
Paul KearneyChief Data Officer2025-12-101,213$3.31
$4.02kSell
Zhenya LindgardtChief Executive Officer2025-12-104,155$3.31
$13.75kSell
Austin AertsChief Financial Officer2025-12-10873$3.31
$2.89kSell
Robert Gardner HarrisonChief Information Officer2025-12-10616$3.31
$2.04kSell
John J. BonifaceChief Scientific Officer2025-12-101,332$3.31
$4.41kSell
Benjamin JacksonGeneral Counsel2025-12-10892$3.31
$2.95kSell
Zhenya LindgardtChief Executive Officer2025-12-0928,215$3.04
$85.77kSell
Austin AertsChief Financial Officer2025-12-095,232$3.04
$15.91kSell

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Net Insider Buy/Sell (L12M) Ownership

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SERA Shareholders

What type of owners hold Sera Prognostics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Baker Bros Advisors LP14.25%5,498,170$14.24MInstitution
Baker Bros Advisors LP13.13%5,065,736$13.12MInsider
Whetstone Capital Advisors LLC8.96%3,459,713$8.96MInstitution
Aberdeen Group PLC5.91%2,279,699$5.90MInstitution
Vivo Capital LLC4.28%1,650,440$4.27MInstitution
Gregory C. Critchfield3.77%1,453,698$3.77MInsider
Vanguard Group Inc3.21%1,239,449$3.21MInstitution
Zhenya Lindgardt1.98%763,926$1.98MInsider
Citadel Advisors LLC1.83%707,614$1.83MInstitution
Joshua Phillips1.59%614,021$1.59MInsider

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SERA vs Diagnostic & Research Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
SERA45.45%25.17%Net SellingNet Selling
BDSX3.92%96.08%Net BuyingNet Buying
STIM61.54%31.95%Net SellingNet Selling
DRIO5.02%94.98%Net Buying
FONR38.81%3.60%
View Top Diagnostic & Research Stocks

Sera Prognostics Stock Ownership FAQ

Who owns Sera Prognostics?

Sera Prognostics (NASDAQ: SERA) is owned by 45.45% institutional shareholders, 25.17% Sera Prognostics insiders, and 29.38% retail investors. Baker Bros Advisors LP is the largest individual Sera Prognostics shareholder, owning 5.07M shares representing 13.13% of the company. Baker Bros Advisors LP's Sera Prognostics shares are currently valued at $13.02M.

If you're new to stock investing, here's how to buy Sera Prognostics stock.
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