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Disclosery

SERA SERA PROGNOSTICS INC

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CMN (common), issuer CIK 1534969

57 managers (57 13F filers) reported a position in SERA shares at 2025-12-31, 17,640,520 shares in all. 5 filers opened a position and 8 filers sold out during the quarter.

Managers
57
13F filers
57
New
5
Added
14
Reduced
14
Sold out
8
Shares held by filers
17,640,520

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BAKER BROS. ADVISORS LPin group BAKER BROS. ADVISORS LP5,498,170$16.2M0.09%013F-HRTimelineGroup
Whetstone Capital Advisors, LLC3,459,713$10.2M3.18%-172,65813F-HRTimeline
Aberdeen Group plcin group Aberdeen Group plc2,279,699$6.73M0.01%013F-HRTimelineGroup
Vivo Capital, LLC1,650,440$4.87M0.31%013F-HRTimeline
VANGUARD GROUP INCgroup of 2 filers holding1,239,449$3.66M+9,698Timeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC707,614$2.09M<0.01%+53,86813F-HRTimelineGroup
CAPTRUST FINANCIAL ADVISORS536,766$1.58M<0.01%-65,57013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC334,639$987K<0.01%+3,52413F-HRTimelineGroup
AWM Investment Company, Inc.207,382$612K0.06%013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.186,751$551K<0.01%+7,77413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP124,792$368K<0.01%013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC113,178$334K<0.01%-14,10913F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP107,235$316K0.03%+42,04513F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP100,000$290K<0.01%013F-HR/ATimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP96,535$285K<0.01%+8,05213F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY80,968$239K<0.01%-3,04613F-HR/ATimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp75,267$222K<0.01%013F-HRTimelineGroup
Perigon Wealth Management, LLC72,685$214K<0.01%013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…71,532$211K<0.01%+49,16013F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC68,826$203K<0.01%new13F-HRTimelineGroup
Requisite Capital Management, LLC55,648$164K0.03%013F-HRTimeline
Twelve Points Wealth Management LLC43,388$160K0.04%013F-HRTimeline
Ballentine Partners, LLC49,664$147K<0.01%013F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC45,705$135K<0.01%013F-HRTimeline
HighTower Advisors, LLC42,234$125K<0.01%013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC36,722$108K<0.01%+26,72613F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC36,322$107K<0.01%-56,74113F-HRTimelineGroup
Qube Research & Technologies Ltd28,982$85.5K<0.01%+4,89913F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC28,599$84.4K<0.01%-26,24013F-HR/ATimelineGroup
Birch Hill Investment Advisors LLC27,293$80.5K<0.01%013F-HRTimeline
UBS Group AGin group UBS Group AG25,195$74.3K<0.01%+67213F-HRTimelineGroup
Cetera Investment Advisers25,000$73.8K<0.01%new13F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP22,934$67.5K<0.01%+51013F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP21,964$64.8K<0.01%-9,77213F-HRTimelineGroup
Lido Advisors, LLCin group Lido Advisors, LLC16,623$50.3K<0.01%-5,54113F-HRTimelineGroup
FMR LLCin group FMR LLC14,845$43.8K<0.01%013F-HRTimelineGroup
Wagner Wealth Management, LLC12,686$37.4K0.01%+28613F-HRTimeline
Riverview Capital Advisers, LLC12,669$37.4K0.01%-6413F-HRTimeline
Focus Partners Wealthin group Focus Partners Wealth12,156$35.9K<0.01%013F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co12,085$35.7K<0.01%-713F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.11,403$33.6K<0.01%new13F-HRTimelineGroup
Abel Hall, LLC11,037$32.6K0.01%013F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…10,639$31.5K<0.01%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\8,729$25.8K<0.01%013F-HRTimelineGroup
Geneos Wealth Management Inc.7,800$23K<0.01%+3,30013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/4,670$13.8K<0.01%-77413F-HRTimelineGroup
CWM, LLCin group CWM, LLC1,006$3K<0.01%-113F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…945$2.79K<0.01%new13F-HRTimelineGroup
Optiver Holding B.V.in group Optiver Holding B.V.412$1.22K<0.01%013F-HRTimelineGroup
Torren Management, LLC389$1.15K<0.01%13F-HRTimeline
Fortitude Family Office, LLC301$888<0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS236$696<0.01%013F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO222$655<0.01%013F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC200$590<0.01%+19513F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC129$381<0.01%013F-HRTimeline
SBI Securities Co., Ltd.7$21<0.01%-113F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA40$00%-2,17313F-HRTimelineGroupValue filed as zero, left out of ratios.