NASDAQ: ABOS
Acumen Pharmaceuticals Inc Stock Ownership - Who owns Acumen Pharmaceuticals?

Insider buying vs selling

Have Acumen Pharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Derek M. MeisnerChief Legal Officer Corp Sec2026-01-282,671$1.85
$4.94kBuy
Derek M. MeisnerChief Legal Officer Corp Sec2026-01-282,671$3.00
$8.02kSell
Derek M. MeisnerChief Legal Officer Corp Sec2026-01-2615,085$1.85
$27.91kBuy
Derek M. MeisnerChief Legal Officer Corp Sec2026-01-2615,085$3.00
$45.27kSell
Derek M. MeisnerChief Legal Officer Corp Sec2026-01-235,633$1.90
$10.72kSell
Derek M. MeisnerChief Legal Officer Corp Sec2026-01-221,054$1.84
$1.94kSell
Russell BartonChief Operating Officer2026-01-22462$1.84
$850.08Sell
Matt ZugaCFO Chief Business Officer2026-01-221,687$1.86
$3.14kSell
Eric SiemersChief Medical Officer2026-01-22895$1.82
$1.63kSell
Daniel Joseph OconnellChief Executive Officer2026-01-222,689$1.88
$5.07kSell

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Net Insider Buy/Sell (L12M) Ownership

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ABOS Shareholders

What type of owners hold Acumen Pharmaceuticals Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Ra Capital Management LP24.65%14,932,063$38.67MInstitution
Robert D. Hardie6.37%3,859,141$10.00MInsider
Sands Capital Ventures Discovery Fund III LP5.64%3,417,075$8.85MInsider
Sands Capital Alternatives LLC5.64%3,417,075$8.85MInstitution
Franklin Resources Inc3.81%2,305,096$5.97MInstitution
Fmr LLC3.35%2,029,325$5.26MInstitution
Vanguard Group Inc2.73%1,651,472$4.28MInstitution
Knollwood Investment Advisory LLC2.69%1,628,510$4.22MInstitution
Alyeska Investment Group LP1.55%939,603$2.43MInstitution
Adar1 Capital Management LLC1.47%891,183$2.31MInstitution

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ABOS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ABOS58.99%18.38%Net SellingNet Selling
IPHA0.09%0.00%
NKTX61.88%38.12%Net SellingNet Selling
HELP40.05%0.00%
TNYA20.74%22.99%Net BuyingNet Selling

Acumen Pharmaceuticals Stock Ownership FAQ

Who owns Acumen Pharmaceuticals?

Acumen Pharmaceuticals (NASDAQ: ABOS) is owned by 58.99% institutional shareholders, 18.38% Acumen Pharmaceuticals insiders, and 22.63% retail investors. Robert D. Hardie is the largest individual Acumen Pharmaceuticals shareholder, owning 3.86M shares representing 6.37% of the company. Robert D. Hardie's Acumen Pharmaceuticals shares are currently valued at $9.92M.

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