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Disclosery

SERA SERA PROGNOSTICS INC

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CMN (common), issuer CIK 1534969

44 managers (46 13F filers) reported a position in SERA shares at 2026-06-30, 17,056,642 shares in all. 0 filers opened a position and 9 filers sold out during the quarter.

Managers
44
13F filers
46
New
0
Added
11
Reduced
13
Sold out
9
Shares held by filers
17,056,642

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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$10M0.05%013F-HRTimelineGroup
Whetstone Capital Advisors, LLC3,306,889$6.02M1.59%013F-HRTimeline
Aberdeen Group plcin group Aberdeen Group plc2,753,525$5.01M0.01%+202,75013F-HRTimelineGroup
Vivo Capital, LLC1,650,440$3M0.27%013F-HRTimeline
VANGUARD GROUP INCgroup of 3 filers holding1,479,869$2.69M+94,924Timeline
CAPTRUST FINANCIAL ADVISORS535,755$975K<0.01%-1,00613F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC348,967$635K<0.01%-14,65013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.221,369$403K<0.01%+25,26413F-HRTimelineGroup
AWM Investment Company, Inc.207,382$377K0.03%013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP124,792$227K<0.01%013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC73,986$135K<0.01%-17,51813F-HRTimelineGroup
Perigon Wealth Management, LLC72,685$132K<0.01%013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP68,595$125K<0.01%-27,94013F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp60,927$111K<0.01%013F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC55,705$101K<0.01%+10,00013F-HRTimeline
Requisite Capital Management, LLC55,648$101K0.02%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY50,972$92.8K<0.01%-54,04513F-HRTimelineGroup
Qube Research & Technologies Ltd50,871$92.6K<0.01%+30,95413F-HRTimeline
Ballentine Partners, LLC49,664$90.4K<0.01%013F-HRTimeline
Twelve Points Wealth Management LLC43,388$79K0.02%013F-HRTimeline
HighTower Advisors, LLC42,234$76.9K<0.01%013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC41,411$75.4K<0.01%-207,49813F-HRTimelineGroup
Catalyst Funds Management Pty Ltd38,890$70.8K<0.01%+15,32613F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC32,541$59.2K<0.01%+14,06913F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP29,499$53.7K<0.01%+9,96413F-HRTimelineGroup
Birch Hill Investment Advisors LLC27,293$49.7K<0.01%013F-HRTimeline
Cetera Investment Advisers25,000$45.5K<0.01%013F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd16,808$30.6K<0.01%+31713F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP16,221$29.5K<0.01%-5,74313F-HRTimelineGroup
Riverview Capital Advisers, LLC12,669$23.1K0.01%013F-HRTimeline
Wagner Wealth Management, LLC12,400$22.6K<0.01%013F-HRTimeline
Focus Partners Wealthin group Focus Partners Wealth12,156$22.1K<0.01%013F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…10,504$20.7K<0.01%-5413F-HRTimeline
UBS Group AGin group UBS Group AG11,309$20.6K<0.01%-3,56013F-HRTimelineGroup
Geneos Wealth Management Inc.10,800$19.7K<0.01%013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC3,179$5.79K<0.01%-28,78813F-HRTimelineGroup
FMR LLCin group FMR LLC2,539$4.62K<0.01%-4,03413F-HRTimelineGroup
Global Retirement Partners, LLC1,000$1.82K<0.01%13F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO222$402<0.01%013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS186$339<0.01%-5013F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC129$235<0.01%013F-HRTimeline
SBI Securities Co., Ltd.4$7<0.01%-313F-HRTimeline
Caitong International Asset Management …4$7<0.01%013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA45$00%+213F-HRTimelineGroupValue filed as zero, left out of ratios.