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Hedge Funds Tracker

ABOS

Acumen Pharmaceuticals, Inc.
Funds Buying6
Funds Selling11
# Funds Holding17
Total Value Held$10.7M

Current Holders

FundSharesValue% of PortfolioAs OfLatest MoveLatest Share Change
Geode Capital Management1,141,858$3.0M0%2026-06-30ADDED+725,620
Hudson Bay Capital Management955,000$2.5M0%2026-06-30TRIMMED-13,940
Renaissance Technologies675,025$1.8M0%2026-06-30ADDED+201,079
Two Sigma Investments622,882$1.7M0%2026-06-30ADDED+92,070
Charles Schwab Investment Management115,099$0.3M0%2026-06-30NEW+115,099
Man Group105,777$0.3M0%2024-06-30CLOSED-105,777
Millennium Management60,598$0.2M0%2026-06-30TRIMMED-599,077
Point72 Asset Management67,375$0.2M0%2026-03-31CLOSED-67,375
Squarepoint Ops52,351$0.1M0%2026-06-30ADDED+37,336
Citadel Advisors51,049$0.1M0%2026-06-30ADDED+39,049
D. E. Shaw & Co.55,007$0.1M0%2024-06-30CLOSED-55,007
Marshall Wace48,114$0.1M0%2026-06-30TRIMMED-144,775
Qube Research & Technologies38,614$0.1M0%2026-06-30TRIMMED-81,774
AQR Capital Management46,292$0.1M0%2025-06-30CLOSED-46,292
Walleye Capital18,801$0.0M0%2024-06-30CLOSED-18,801
Verition Fund Management19,445$0.0M0%2024-12-31CLOSED-19,445
Schonfeld Strategic Advisors11,300$0.0M0%2026-03-31CLOSED-11,300

Move History

QuarterFundActionPrev SharesNew SharesValue Change
2026-03-31 → 2026-06-30Renaissance TechnologiesADDED473,946675,025$0.7M
2026-03-31 → 2026-06-30Citadel AdvisorsADDED12,00051,049$0.1M
2026-03-31 → 2026-06-30Point72 Asset ManagementCLOSED67,3750-$0.2M
2026-03-31 → 2026-06-30Two Sigma InvestmentsADDED530,812622,882$0.4M
2026-03-31 → 2026-06-30Millennium ManagementTRIMMED659,67560,598-$1.4M
2026-03-31 → 2026-06-30Marshall WaceTRIMMED192,88948,114-$0.3M
2026-03-31 → 2026-06-30Geode Capital ManagementADDED416,2381,141,858$2.1M
2026-03-31 → 2026-06-30Charles Schwab Investment ManagementNEW0115,099$0.3M
2026-03-31 → 2026-06-30Squarepoint OpsADDED15,01552,351$0.1M
2026-03-31 → 2026-06-30Schonfeld Strategic AdvisorsCLOSED11,3000-$0.0M
2026-03-31 → 2026-06-30Qube Research & TechnologiesTRIMMED120,38838,614-$0.2M
2026-03-31 → 2026-06-30Hudson Bay Capital ManagementTRIMMED968,940955,000$0.3M
2025-12-31 → 2026-03-31Renaissance TechnologiesADDED423,100473,946$0.2M
2025-12-31 → 2026-03-31Citadel AdvisorsTRIMMED372,08312,000-$0.8M
2025-12-31 → 2026-03-31Point72 Asset ManagementADDED36,36567,375$0.1M
2025-12-31 → 2026-03-31Two Sigma InvestmentsADDED143,221530,812$1.0M
2025-12-31 → 2026-03-31Millennium ManagementADDED584,143659,675$0.3M
2025-12-31 → 2026-03-31Marshall WaceADDED20,907192,889$0.4M
2025-12-31 → 2026-03-31Geode Capital ManagementADDED410,206416,238$0.1M
2025-12-31 → 2026-03-31Squarepoint OpsNEW015,015$0.0M
2025-12-31 → 2026-03-31Schonfeld Strategic AdvisorsNEW011,300$0.0M
2025-12-31 → 2026-03-31Qube Research & TechnologiesADDED47,985120,388$0.2M
2025-12-31 → 2026-03-31Hudson Bay Capital ManagementADDED725,000968,940$0.8M
2025-09-30 → 2025-12-31Renaissance TechnologiesTRIMMED584,292423,100-$0.1M
2025-09-30 → 2025-12-31Citadel AdvisorsTRIMMED505,708372,083-$0.1M
2025-09-30 → 2025-12-31Point72 Asset ManagementNEW036,365$0.1M
2025-09-30 → 2025-12-31Two Sigma InvestmentsTRIMMED199,446143,221-$0.0M
2025-09-30 → 2025-12-31Millennium ManagementTRIMMED601,716584,143$0.2M
2025-09-30 → 2025-12-31Marshall WaceNEW020,907$0.0M
2025-09-30 → 2025-12-31Geode Capital ManagementADDED398,778410,206$0.2M
2025-09-30 → 2025-12-31Qube Research & TechnologiesADDED32,88147,985$0.0M
2025-09-30 → 2025-12-31Hudson Bay Capital ManagementTRIMMED725,004725,000$0.3M
2025-06-30 → 2025-09-30Renaissance TechnologiesADDED246,588584,292$0.7M
2025-06-30 → 2025-09-30Citadel AdvisorsADDED14,300505,708$0.8M
2025-06-30 → 2025-09-30Two Sigma InvestmentsTRIMMED200,785199,446$0.1M
2025-06-30 → 2025-09-30Millennium ManagementTRIMMED1,950,120601,716-$1.2M
2025-06-30 → 2025-09-30AQR Capital ManagementCLOSED46,2920-$0.1M
2025-06-30 → 2025-09-30Marshall WaceCLOSED137,9430-$0.2M
2025-06-30 → 2025-09-30Geode Capital ManagementADDED396,626398,778$0.2M
2025-06-30 → 2025-09-30Schonfeld Strategic AdvisorsCLOSED15,9290-$0.0M
2025-06-30 → 2025-09-30Qube Research & TechnologiesTRIMMED57,55932,881-$0.0M
2025-06-30 → 2025-09-30Hudson Bay Capital ManagementTRIMMED825,004725,004$0.3M
2025-03-31 → 2025-06-30Renaissance TechnologiesTRIMMED256,700246,588$0.0M
2025-03-31 → 2025-06-30Citadel AdvisorsTRIMMED66,60014,300-$0.1M
2025-03-31 → 2025-06-30Two Sigma InvestmentsTRIMMED232,293200,785-$0.0M
2025-03-31 → 2025-06-30Millennium ManagementADDED1,135,2221,950,120$1.0M
2025-03-31 → 2025-06-30AQR Capital ManagementADDED41,73546,292$0.0M
2025-03-31 → 2025-06-30Marshall WaceNEW0137,943$0.2M
2025-03-31 → 2025-06-30Geode Capital ManagementTRIMMED861,899396,626-$0.5M
2025-03-31 → 2025-06-30Charles Schwab Investment ManagementCLOSED116,9020-$0.1M
2025-03-31 → 2025-06-30Squarepoint OpsCLOSED11,1890-$0.0M
2025-03-31 → 2025-06-30Schonfeld Strategic AdvisorsNEW015,929$0.0M
2024-12-31 → 2025-06-30Qube Research & TechnologiesTRIMMED68,32157,559-$0.1M
2025-03-31 → 2025-06-30Hudson Bay Capital ManagementADDED770,000825,004$0.1M
2024-12-31 → 2025-03-31Renaissance TechnologiesTRIMMED257,213256,700-$0.2M
2024-12-31 → 2025-03-31Citadel AdvisorsTRIMMED81,49766,600-$0.1M
2024-12-31 → 2025-03-31Two Sigma InvestmentsTRIMMED301,268232,293-$0.3M
2024-12-31 → 2025-03-31Millennium ManagementTRIMMED1,344,7451,135,222-$1.1M
2024-12-31 → 2025-03-31AQR Capital ManagementNEW041,735$0.0M
2024-12-31 → 2025-03-31Geode Capital ManagementTRIMMED870,555861,899-$0.5M
2024-12-31 → 2025-03-31Charles Schwab Investment ManagementTRIMMED126,747116,902-$0.1M
2024-12-31 → 2025-03-31Verition Fund ManagementCLOSED19,4450-$0.0M
2024-12-31 → 2025-03-31Squarepoint OpsTRIMMED11,81511,189-$0.0M
2024-12-31 → 2025-03-31Hudson Bay Capital ManagementADDED715,000770,000-$0.4M
2024-09-30 → 2024-12-31Renaissance TechnologiesTRIMMED306,100257,213-$0.3M
2024-09-30 → 2024-12-31Citadel AdvisorsADDED69,31281,497-$0.0M
2024-09-30 → 2024-12-31Two Sigma InvestmentsTRIMMED309,507301,268-$0.2M
2024-09-30 → 2024-12-31Millennium ManagementTRIMMED1,834,7531,344,745-$2.2M
2024-09-30 → 2024-12-31Geode Capital ManagementADDED864,528870,555-$0.6M
2024-09-30 → 2024-12-31Charles Schwab Investment ManagementADDED108,743126,747-$0.1M
2024-09-30 → 2024-12-31Verition Fund ManagementNEW019,445$0.0M
2024-09-30 → 2024-12-31Squarepoint OpsNEW011,815$0.0M
2024-09-30 → 2024-12-31Qube Research & TechnologiesTRIMMED82,70268,321-$0.1M
2024-09-30 → 2024-12-31Hudson Bay Capital ManagementADDED636,000715,000-$0.3M
2024-06-30 → 2024-09-30Renaissance TechnologiesTRIMMED338,100306,100-$0.1M
2024-06-30 → 2024-09-30Citadel AdvisorsTRIMMED119,51269,312-$0.1M
2024-06-30 → 2024-09-30D. E. Shaw & Co.CLOSED55,0070-$0.1M
2024-06-30 → 2024-09-30Two Sigma InvestmentsTRIMMED310,797309,507$0.0M
2024-06-30 → 2024-09-30Millennium ManagementTRIMMED1,954,0851,834,753-$0.2M
2024-06-30 → 2024-09-30Geode Capital ManagementADDED812,133864,528$0.2M
2024-06-30 → 2024-09-30Walleye CapitalCLOSED18,8010-$0.0M
2024-06-30 → 2024-09-30Schonfeld Strategic AdvisorsCLOSED73,6190-$0.2M
2024-06-30 → 2024-09-30Qube Research & TechnologiesADDED75,86982,702$0.0M
2024-06-30 → 2024-09-30Man GroupCLOSED105,7770-$0.3M
2024-06-30 → 2024-09-30Hudson Bay Capital ManagementTRIMMED670,000636,000-$0.0M
2024-03-31 → 2024-06-30Renaissance TechnologiesNEW0338,100$0.8M
2024-03-31 → 2024-06-30Citadel AdvisorsADDED34,851119,512$0.1M
2024-03-31 → 2024-06-30D. E. Shaw & Co.NEW055,007$0.1M
2024-03-31 → 2024-06-30Two Sigma InvestmentsADDED177,901310,797$0.0M
2024-03-31 → 2024-06-30Millennium ManagementTRIMMED2,629,5411,954,085-$5.9M
2024-03-31 → 2024-06-30Marshall WaceCLOSED89,7070-$0.4M
2024-03-31 → 2024-06-30Geode Capital ManagementADDED285,139812,133$0.8M
2024-03-31 → 2024-06-30Charles Schwab Investment ManagementNEW0108,743$0.3M
2024-03-31 → 2024-06-30Walleye CapitalNEW018,801$0.0M
2024-03-31 → 2024-06-30Squarepoint OpsCLOSED113,2320-$0.5M
2024-03-31 → 2024-06-30Schonfeld Strategic AdvisorsTRIMMED458,48473,619-$1.7M
2024-03-31 → 2024-06-30Qube Research & TechnologiesTRIMMED167,58875,869-$0.5M
2024-03-31 → 2024-06-30Man GroupTRIMMED187,585105,777-$0.5M
2024-03-31 → 2024-06-30Hudson Bay Capital ManagementADDED560,000670,000-$0.6M
2023-12-31 → 2024-03-31Citadel AdvisorsTRIMMED144,41634,851-$0.4M
2023-12-31 → 2024-03-31D. E. Shaw & Co.CLOSED138,0290-$0.5M
2023-12-31 → 2024-03-31Two Sigma InvestmentsTRIMMED244,416177,901-$0.2M
2023-12-31 → 2024-03-31Millennium ManagementADDED1,495,2842,629,541$4.9M
2023-12-31 → 2024-03-31Marshall WaceNEW089,707$0.4M
2023-12-31 → 2024-03-31Geode Capital ManagementADDED264,603285,139$0.1M
2023-12-31 → 2024-03-31Squarepoint OpsADDED52,829113,232$0.3M
2023-12-31 → 2024-03-31Schonfeld Strategic AdvisorsTRIMMED561,542458,484-$0.3M
2023-12-31 → 2024-03-31Qube Research & TechnologiesADDED88,626167,588$0.3M
2023-12-31 → 2024-03-31Man GroupADDED144,630187,585$0.2M
2023-12-31 → 2024-03-31Hudson Bay Capital ManagementTRIMMED564,400560,000$0.1M
2023-09-30 → 2023-12-31Renaissance TechnologiesCLOSED87,4000-$0.0M
2023-09-30 → 2023-12-31Citadel AdvisorsADDED39,832144,416$0.4M
2023-09-30 → 2023-12-31D. E. Shaw & Co.NEW0138,029$0.5M
2023-09-30 → 2023-12-31Two Sigma InvestmentsADDED132,351244,416$0.4M
2023-09-30 → 2023-12-31Millennium ManagementTRIMMED1,770,0901,495,284-$1.6M
2023-09-30 → 2023-12-31Marshall WaceCLOSED25,4920-$0.1M
2023-09-30 → 2023-12-31Verition Fund ManagementCLOSED23,5000-$0.1M
2023-09-30 → 2023-12-31Squarepoint OpsNEW052,829$0.2M
2023-09-30 → 2023-12-31Schonfeld Strategic AdvisorsTRIMMED645,112561,542-$0.5M
2023-09-30 → 2023-12-31Qube Research & TechnologiesADDED26,11388,626$0.2M
2023-09-30 → 2023-12-31Man GroupNEW0144,630$0.6M
2023-09-30 → 2023-12-31Hudson Bay Capital ManagementADDED525,000564,400-$0.0M