Skip to content
Disclosery

SERA SERA PROGNOSTICS INC

Follow

CMN (common), issuer CIK 1534969

54 managers (56 13F filers) reported a position in SERA shares at 2026-03-31, 19,944,881 shares in all. 8 filers opened a position and 11 filers sold out during the quarter.

Managers
54
13F filers
56
New
8
Added
6
Reduced
17
Sold out
11
Shares held by filers
19,944,881

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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$11.2M0.06%013F-HRTimelineGroup
Whetstone Capital Advisors, LLC3,306,889$6.71M2.53%-152,82413F-HRTimeline
Aberdeen Group plcin group Aberdeen Group plc2,550,775$5.18M0.01%+271,07613F-HRTimelineGroup
PSP Research LLC2,396,685$4.87M3.44%new13F-HRTimeline
Vivo Capital, LLC1,650,440$3.35M0.28%013F-HR/ATimeline
VANGUARD GROUP INCgroup of 3 filers holding1,384,945$2.81MnewTimeline
CAPTRUST FINANCIAL ADVISORS536,761$1.09M<0.01%-513F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC363,617$739K<0.01%+28,97813F-HRTimelineGroup
SANDERS MORRIS HARRIS LLC314,950$639K0.1%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC248,909$505K<0.01%-458,70513F-HRTimelineGroup
AWM Investment Company, Inc.207,382$421K0.05%013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.196,105$398K<0.01%+9,35413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP124,792$253K<0.01%013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY105,017$213K<0.01%+24,04913F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP104,973$213K0.01%-2,26213F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP96,535$196K<0.01%013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC91,504$186K<0.01%-21,67413F-HRTimelineGroup
Perigon Wealth Management, LLC72,685$148K<0.01%013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp60,927$124K<0.01%-14,34013F-HRTimelineGroup
Requisite Capital Management, LLC55,648$113K0.02%013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC53,908$109K<0.01%-14,91813F-HRTimelineGroup
Ballentine Partners, LLC49,664$101K<0.01%013F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC45,705$92.8K<0.01%013F-HRTimeline
Twelve Points Wealth Management LLC43,388$88.1K0.02%013F-HRTimeline
HighTower Advisors, LLC42,234$85.7K<0.01%013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC31,967$64.9K<0.01%-4,75513F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC31,428$63.8K<0.01%-4,89413F-HRTimelineGroup
Birch Hill Investment Advisors LLC27,293$55.4K<0.01%013F-HRTimeline
Cetera Investment Advisers25,000$50.8K<0.01%013F-HRTimeline
Catalyst Funds Management Pty Ltd23,564$47.8K0.01%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP21,964$44.6K<0.01%013F-HRTimelineGroup
Qube Research & Technologies Ltd19,917$40.4K<0.01%-9,06513F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP19,535$39.3K<0.01%-3,39913F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC18,472$37.5K<0.01%-10,12713F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd16,491$33.5K<0.01%new13F-HRTimelineGroup
UBS Group AGin group UBS Group AG14,869$30.2K<0.01%-10,32613F-HRTimelineGroup
Riverview Capital Advisers, LLC12,669$25.7K0.01%013F-HRTimeline
Wagner Wealth Management, LLC12,400$25.2K0.01%-28613F-HRTimeline
Arkadios Wealth Advisors12,400$25.2K<0.01%new13F-HRTimeline
Focus Partners Wealthin group Focus Partners Wealth12,156$24.7K<0.01%013F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co12,085$24.5K<0.01%013F-HRTimelineGroup
Geneos Wealth Management Inc.10,800$21.9K<0.01%+3,00013F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…10,558$21.2K<0.01%-8113F-HRTimeline
FMR LLCin group FMR LLC6,573$13.3K<0.01%-8,27213F-HRTimelineGroup
CWM, LLCin group CWM, LLC1,003$2.04K<0.01%-313F-HRTimelineGroup
Optiver Holding B.V.in group Optiver Holding B.V.412$836<0.01%013F-HR/ATimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS236$479<0.01%013F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO222$426<0.01%013F-HR/ATimelineGroup
NISA INVESTMENT ADVISORS, LLC129$262<0.01%013F-HRTimeline
Silicon Valley Capital Partners57$116<0.01%new13F-HRTimeline
Advisory Services Network, LLC19$39<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.7$14<0.01%013F-HRTimeline
Caitong International Asset Management …4$8<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA43$00%+313F-HRTimelineGroupValue filed as zero, left out of ratios.