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

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Acumen Pharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Derrell PorterDirector2026-06-1713,040$2.33
$30.32kSell
Derrell PorterDirector2026-06-1713,040$1.07
$13.95kBuy
Derrell PorterDirector2026-06-1612,800$2.33
$29.77kSell
Derrell PorterDirector2026-06-156,460$2.35
$15.15kSell
Derrell PorterDirector2026-06-156,460$1.07
$6.91kBuy
Nathan B. FountainDirector2026-06-096,400$2.23
$14.27kSell
Ra Capital Management LPDirector2026-03-166,060,606$3.30
$20.00MBuy
Derek M. MeisnerChief Legal Officer Corp Sec2026-03-062,090$1.85
$3.87kBuy
Derek M. MeisnerChief Legal Officer Corp Sec2026-03-062,090$3.26
$6.81kSell
Derek M. MeisnerChief Legal Officer Corp Sec2026-02-279,406$1.85
$17.40kBuy

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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 LP29.06%20,992,669$47.44MInstitution
Robert D. Hardie5.34%3,859,141$8.72MInsider
Sands Capital Alternatives LLC5.15%3,720,105$8.41MInstitution
Sands Capital Ventures Discovery Fund III LP4.73%3,417,075$7.72MInsider
Alyeska Investment Group LP3.40%2,454,754$5.55MInstitution
Franklin Resources Inc3.19%2,305,096$5.21MInstitution
Adar1 Capital Management LLC2.99%2,156,334$4.87MInstitution
Knollwood Investment Advisory LLC2.25%1,628,510$3.68MInstitution
Vanguard Capital Management LLC2.09%1,506,277$3.40MInstitution
Fmr LLC1.60%1,157,346$2.62MInstitution

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ABOS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ABOS63.69%15.73%Net BuyingNet Selling
HURA14.85%33.07%
CRBU38.16%8.68%Net Selling
MIST23.93%10.86%Net SellingNet Selling
ORMP32.35%55.22%Net SellingNet Selling
View Top Biotech Stocks

Acumen Pharmaceuticals Stock Ownership FAQ

Who owns Acumen Pharmaceuticals?

Acumen Pharmaceuticals (NASDAQ: ABOS) is owned by 63.69% institutional shareholders, 15.73% Acumen Pharmaceuticals insiders, and 20.58% retail investors. Robert D. Hardie is the largest individual Acumen Pharmaceuticals shareholder, owning 3.86M shares representing 5.34% of the company. Robert D. Hardie's Acumen Pharmaceuticals shares are currently valued at $8.72M.

If you're new to stock investing, here's how to buy Acumen Pharmaceuticals stock.
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