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Who owns Sera Prognostics (SERA) stock

51 funds reported Sera Prognostics (SERA) shares in their latest 13F filings, worth $40.0M in all. The largest holder is Baker Bros. Advisors LP ($10.0M). Last quarter 12 funds added to their stakes and 21 cut them.

Largest holders of SERA (13F)Largest holders of SERA (13F)Baker Bros. Advisors LP$10.0MWhetstone Capital Advisors, LLC$6.0Mabrdn$5.0MPSP Research LLC$5.0MVanguard Group$3.7MVivo Capital, LLC$3.0MVanguard Capital Management LLC$2.4MCaptrust Financial Advisors$975KSanders Morris Harris LLC$642KGeode Capital Management, LLC$635K

Largest holders (13F)

FundSharesValueChangeQuarter
Baker Bros. Advisors LP5,498,170$10.0Munchanged2026-06-30
Whetstone Capital Advisors, LLC3,306,889$6.0Munchanged2026-06-30
abrdn2,753,525$5.0Mincrease2026-06-30
PSP Research LLC2,396,685$5.0Mnew2026-09-30
Vanguard Group1,239,449$3.7Mincrease2025-12-31
Vivo Capital, LLC1,650,440$3.0Munchanged2026-06-30
Vanguard Capital Management LLC1,297,792$2.4Mincrease2026-06-30
Captrust Financial Advisors535,755$975Kdecrease2026-06-30
Sanders Morris Harris LLC314,950$642Knew2026-09-30
Geode Capital Management, LLC348,967$635Kdecrease2026-06-30
BlackRock221,369$403Kincrease2026-06-30
Vanguard Fiduciary Trust170,908$311Kincrease2026-06-30
State Street124,792$227Kunchanged2026-06-30
Millennium Management LLC73,986$135Kdecrease2026-06-30
Perigon Wealth Management, LLC72,685$132Kunchanged2026-06-30

Sera Prognostics' latest quarter

Sera Prognostics, Q3 2026: revenue $42K (+162% year over year), net loss $8.1M, operating cash flow −$7.3M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most SERA stock?

By the latest 13F filings: Baker Bros. Advisors LP ($10.0M); Whetstone Capital Advisors, LLC ($6.0M); abrdn ($5.0M); PSP Research LLC ($5.0M); Vanguard Group ($3.7M).

What is the short interest in SERA?

222,706 shares were sold short at the 2026-10-15 settlement, -3.05% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.