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FMR LLC

SEC CIK
0000315066
Latest filing
Aug 13, 2026

ABOS holding history

Acumen Pharmaceuticals, Inc. in every 13F filed by FMR LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

ABOS overviewAll 13F holders of ABOSFull Q2 2026 holdings

Shares (Q2 2026)
7,530
Value
$20.1K
% of portfolio
<0.1%
Quarters held
19
Since Q3 2021
Holdings of ABOS by FMR LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20267,530$20.1K<0.1%−1,149,816−99.3%ReducedHolders
Q1 20261,157,346$2.73M<0.1%−870,151−42.9%ReducedHolders
Q4 20252,027,497$4.28M<0.1%−1,828−0.1%ReducedHolders
Q3 20252,029,325$3.47M<0.1%−4110.0%ReducedHolders
Q2 20252,029,736$2.35M<0.1%+4,113+0.2%AddedHolders
Q1 20252,025,623$2.23M<0.1%+1,863+0.1%AddedHolders
Q4 20242,023,760$3.48M<0.1%−4,357−0.2%ReducedHolders
Q3 20242,028,117$5.03M<0.1%+6,014+0.3%AddedHolders
Q2 20242,022,103$4.89M<0.1%−66,897−3.2%ReducedHolders
Q1 20242,089,000$8.46M<0.1%+2,089,000NewHolders
Q4 20230$00.0%−657−100.0%Sold outHolders
Q3 2023657$2.73K<0.1%+180+37.7%AddedHolders
Q2 2023477$2.29K<0.1%−202−29.7%ReducedHolders
Q1 2023679$2.76K<0.1%−220−24.5%ReducedHolders
Q4 2022899$4.86K<0.1%00.0%UnchangedHolders
Q3 2022899$9.00K<0.1%00.0%UnchangedHolders
Q2 2022899$4.00K<0.1%−939−51.1%ReducedHolders
Q1 20221,838$7.00K<0.1%−11,462−86.2%ReducedHolders
Q4 202113,300$90.0K<0.1%−93,800−87.6%ReducedHolders
Q3 2021107,100$1.59M<0.1%+107,100NewHolders