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Disclosery

ABOS ACUMEN PHARMACEUTICALS INC

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CMN (common), issuer CIK 1576885

80 managers (82 13F filers) reported a position in ABOS shares at 2025-03-31, 40,269,403 shares in all. 10 filers opened a position and 9 filers sold out during the quarter.

Managers
80
13F filers
82
New
10
Added
15
Reduced
33
Sold out
9
Shares held by filers
40,269,403

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 2025

Filers in the available 13F reports with a share position at 2025-03-31, 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
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.14,932,063$16.4M0.27%013F-HRTimelineGroup
Sands Capital Alternatives, LLC3,417,075$3.76M0.92%013F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources3,141,939$3.46M<0.01%-131,69413F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.2,331,049$2.56M<0.01%-40,99813F-HRTimelineGroup
FMR LLCin group FMR LLC2,025,623$2.23M<0.01%+1,86313F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding1,958,997$2.15M+5,332Timeline
Knollwood Investment Advisory, LLC1,628,510$1.79M0.2%013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO832,267$1.46M<0.01%-105,64113F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC1,135,222$1.25M<0.01%-209,52313F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC1,086,531$1.2M0.01%+479,68613F-HRTimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.939,603$1.03M<0.01%013F-HRTimelineGroup
Laurion Capital Management LP867,046$954K0.07%013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC861,899$948K<0.01%-8,65613F-HRTimelineGroup
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…770,000$847K0.01%+55,00013F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding695,993$766K-104,375Timeline
STATE STREET CORPin group STATE STREET CORP521,206$573K<0.01%-4,60013F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP289,836$319K<0.01%-17,77913F-HRTimelineGroup
Ikarian Capital, LLCin group Ikarian Capital, LLC265,769$292K0.1%013F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC256,700$282K<0.01%-51313F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC196,207$216K<0.01%-22,93713F-HR/ATimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/158,934$175K<0.01%+10,26613F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY152,636$168K<0.01%-113,58013F-HRTimelineGroup
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC146,183$161K0.03%+51,88913F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.127,798$141K<0.01%+107,95613F-HRTimelineGroup
UBS Group AGin group UBS Group AG123,015$135K<0.01%-18,47713F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co116,902$129K<0.01%-9,84513F-HR/ATimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC115,171$127K<0.01%-18,82913F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding110,976$122K+20,357Timeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\96,995$107K<0.01%013F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp90,258$99.3K<0.01%-2,72513F-HRTimelineGroup
CATALYST FINANCIAL PARTNERS LLC89,699$98.7K0.02%013F-HRTimeline
Nuveen, LLCin group TIAA78,446$86.3K<0.01%13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC72,265$79.5K<0.01%-20,81713F-HR/ATimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC51,042$56.1K<0.01%013F-HRTimeline
RHUMBLINE ADVISERS45,516$50.1K<0.01%-7,56013F-HR/ATimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP43,524$47.9K<0.01%-54,49213F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC41,735$45.9K<0.01%new13F-HRTimelineGroup
Marex Group Ltdin group Marex Group Ltd33,300$36.6K<0.01%013F-HRTimelineGroup
Intrepid Financial Planning Group LLC30,150$33.2K0.02%013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC29,836$32.8K<0.01%-50,50913F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC28,540$31.4K<0.01%+9,69313F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN27,678$30.4K<0.01%+1,55913F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…25,171$27.7K<0.01%+1,09213F-HRTimelineGroup
Qube Research & Technologies Ltd22,135$24.3K<0.01%-46,18613F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO21,782$24K<0.01%013F-HR/ATimelineGroup
Corebridge Financial, Inc.in group Corebridge Financial, Inc.20,550$22.6K<0.01%-30513F-HRTimelineGroup
SG Americas Securities, LLC18,007$20K<0.01%-7,62413F-HRTimeline
PINNACLE ASSOCIATES LTD18,020$19.8K<0.01%013F-HRTimeline
Pinnacle Wealth Management Advisory Gro…18,020$19.8K<0.01%013F-HRTimeline
Factor Wealth Management LTD16,500$18.1K0.01%013F-HRTimeline
THOROUGHBRED FINANCIAL SERVICES, LLC15,500$17K<0.01%new13F-HRTimeline
Integrated Wealth Concepts LLC15,219$16.7K<0.01%+5,11913F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/13,616$15K<0.01%013F-HRTimeline
TWO SIGMA SECURITIES, LLC11,879$13.1K<0.01%new13F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC11,189$12.3K<0.01%-62613F-HR/ATimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC10,804$11.9K<0.01%-19,93613F-HR/ATimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND9,800$10.8K<0.01%013F-HR/ATimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…8,441$9.29K<0.01%-12,18313F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA8,540$9K<0.01%-6,12113F-HR/ATimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.5,000$5.5K<0.01%-10,40013F-HRTimelineGroup
CWM, LLCin group CWM, LLC4,137$5K<0.01%+3,90813F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…4,446$4.89K<0.01%new13F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…4,110$4.52K<0.01%013F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc3,635$4K<0.01%013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS3,167$3.48K<0.01%-3,85013F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…3,039$3.34K<0.01%013F-HRTimeline
GROUP ONE TRADING LLC2,411$2.65K<0.01%-26,43713F-HRTimeline
SIMPLEX TRADING, LLC2,343$2K<0.01%+1,15213F-HRTimeline
AMALGAMATED BANK1,451$2K<0.01%013F-HRTimeline
MEEDER ASSET MANAGEMENT INCin group Meeder Advisory Services, Inc.1,584$1.74K<0.01%new13F-HRTimelineGroup
Federation des caisses Desjardins du Qu…1,500$1.65K<0.01%013F-HRTimeline
Sterling Capital Management LLC685$754<0.01%-74013F-HRTimeline
N.E.W. Advisory Services LLC598$658<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.513$564<0.01%+7313F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…486$535<0.01%new13F-HRTimelineGroup
Rise Advisors, LLC373$410<0.01%new13F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC311$343<0.01%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…278$306<0.01%-95913F-HRTimelineGroup
True Wealth Design, LLC29$32<0.01%new13F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.