WallStreetZenWallStreetZen

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
Ra Capital Management LPDirector2026-03-166,060,606$3.30
$20.00MBuy
Derek M. MeisnerChief Legal Officer Corp Sec2026-03-062,090$3.26
$6.81kSell
Derek M. MeisnerChief Legal Officer Corp Sec2026-03-062,090$1.85
$3.87kBuy
Derek M. MeisnerChief Legal Officer Corp Sec2026-02-279,406$3.01
$28.31kSell
Derek M. MeisnerChief Legal Officer Corp Sec2026-02-279,406$1.85
$17.40kBuy
Derek M. MeisnerChief Legal Officer Corp Sec2026-01-282,671$3.00
$8.02kSell
Derek M. MeisnerChief Legal Officer Corp Sec2026-01-282,671$1.85
$4.94kBuy
Derek M. MeisnerChief Legal Officer Corp Sec2026-01-2615,085$3.00
$45.27kSell
Derek M. MeisnerChief Legal Officer Corp Sec2026-01-2615,085$1.85
$27.91kBuy
Derek M. MeisnerChief Legal Officer Corp Sec2026-01-235,633$1.90
$10.72kSell

1 of 5

ABOS insiders have bought more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when ABOS insiders and whales buy or sell their stock.

ABOS Shareholders

What type of owners hold Acumen Pharmaceuticals Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Ra Capital Management LP24.65%14,932,063$43.60MInstitution
Robert D. Hardie6.37%3,859,141$11.27MInsider
Sands Capital Ventures Discovery Fund III LP5.64%3,417,075$9.98MInsider
Sands Capital Alternatives LLC5.64%3,417,075$9.98MInstitution
Franklin Resources Inc3.81%2,305,096$6.73MInstitution
Fmr LLC3.35%2,027,497$5.92MInstitution
Vanguard Group Inc2.73%1,653,772$4.83MInstitution
Knollwood Investment Advisory LLC2.69%1,628,510$4.76MInstitution
Alyeska Investment Group LP1.55%939,603$2.74MInstitution
Adar1 Capital Management LLC1.47%891,183$2.60MInstitution

1 of 3

ABOS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ABOS58.87%18.38%Net BuyingNet Buying
DTIL35.28%64.72%Net SellingNet Selling
PRQR35.27%1.57%
TNYA31.61%38.17%Net SellingNet Selling
MIST22.52%11.52%Net SellingNet Selling
View Top Biotech Stocks

Acumen Pharmaceuticals Stock Ownership FAQ

Who owns Acumen Pharmaceuticals?

Acumen Pharmaceuticals (NASDAQ: ABOS) is owned by 58.87% institutional shareholders, 18.38% Acumen Pharmaceuticals insiders, and 22.75% 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 $10.30M.

If you're new to stock investing, here's how to buy Acumen Pharmaceuticals stock.
©2026 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.