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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

1 of 6

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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
Robert D. Hardie5.34%3,859,141$810.42kInsider
Sands Capital Ventures Discovery Fund III LP4.72%3,417,075$717.59kInsider
Daniel Joseph Oconnell1.22%881,275$185.07kInsider
Paul B. Manning1.03%747,694$157.02kInsider
Ra Capital Management LP0.81%588,850$123.66kInsider
John A. Stalfort Iii0.49%352,219$73.97kInsider
Matt Zuga0.42%304,924$64.03kInsider
Eric Siemers0.35%255,371$53.63kInsider
James J. Doherty0.31%220,900$46.39kInsider
Russell Barton0.28%205,092$43.07kInsider

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ABOS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ABOS0.07%15.71%Net Buying
PLUR0.00%100.00%Net BuyingNet Buying
KPTI0.06%99.94%Net SellingNet Selling
GNTA0.00%0.27%
QNRX0.00%5.12%Net BuyingNet Buying
View Top Biotech Stocks

Acumen Pharmaceuticals Stock Ownership FAQ

Who owns Acumen Pharmaceuticals?

Acumen Pharmaceuticals (NASDAQ: ABOS) is owned by 0.07% institutional shareholders, 15.71% Acumen Pharmaceuticals insiders, and 84.22% 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 $810.42k.

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