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ABOS Insider Trading

Insider Ownership Percentage: 9.30%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $233,123.83

Acumen Pharmaceuticals Insider Trading History Chart

This chart shows the insider buying and selling history at Acumen Pharmaceuticals by year and by quarter.

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Acumen Pharmaceuticals Share Price & Price History

Current Price: $1.98
Price Change: ▲ Price Increase of +0.05 (2.59%)
As of 12/4/2025 05:00 PM ET

This chart shows the closing price history over time for ABOS up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Acumen Pharmaceuticals Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
1/23/2025Matt ZugaCFOSell28,902$1.72$49,711.44231,744View SEC Filing Icon  
1/21/2025Daniel Joseph OconnellCEOSell12,619$1.59$20,064.21667,488View SEC Filing Icon  
1/21/2025Eric SiemersInsiderSell3,219$1.59$5,118.21170,298View SEC Filing Icon  
1/21/2025Matt ZugaCFOSell4,364$1.60$6,982.40260,646View SEC Filing Icon  
1/21/2025Russell BartonCOOSell2,914$1.61$4,691.54136,117View SEC Filing Icon  
1/3/2025Daniel Joseph OconnellCEOSell47,778$1.84$87,911.52454,707View SEC Filing Icon  
1/3/2025Eric SiemersInsiderSell10,859$1.85$20,089.15106,717View SEC Filing Icon  
1/3/2025Matt ZugaCFOSell13,235$1.84$24,352.40198,210View SEC Filing Icon  
1/3/2025Russell BartonCOOSell7,636$1.86$14,202.9689,231View SEC Filing Icon  
1/19/2024Daniel Joseph OconnellCEOSell15,200$3.47$52,744.00502,485View SEC Filing Icon  
1/19/2024Derek M MeisnerInsiderSell8,933$3.48$31,086.84108,867View SEC Filing Icon  
1/18/2024Matt ZugaCFOSell4,242$3.71$15,737.82211,445View SEC Filing Icon  
1/18/2024Russell BartonCOOSell2,833$3.73$10,567.0996,867View SEC Filing Icon  
8/17/2023Jeffrey L. IvesDirectorSell41,949$6.49$272,249.01View SEC Filing Icon  
7/21/2023Ra Capital Management, L.P.DirectorBuy5,161,290$7.75$39,999,997.5013,043,179View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Acumen Pharmaceuticals (NASDAQ:ABOS)

71.01% of Acumen Pharmaceuticals stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at ABOS by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Acumen Pharmaceuticals Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/17/2025Jacobs Levy Equity Management Inc.16,001$27K0.0%N/A0.026%Search for SEC Filing on Google Icon
11/17/2025Susquehanna International Group LLP214,440$0.37M0.0%+26.5%0.354%Search for SEC Filing on Google Icon
11/17/2025Qube Research & Technologies Ltd32,881$56K0.0%-42.9%0.054%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC601,716$1.03M0.0%-69.1%0.993%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE213,729$0.37M0.0%+45.4%0.353%Search for SEC Filing on Google Icon
11/14/2025ADAR1 Capital Management LLC891,183$1.52M0.1%-2.7%1.471%Search for SEC Filing on Google Icon
11/14/2025Bridgeway Capital Management LLC190,171$0.33M0.0%+65.1%0.314%Search for SEC Filing on Google Icon
11/13/2025Pathstone Holdings LLC859,110$1.47M0.0%-18.8%1.418%Search for SEC Filing on Google Icon
11/13/2025Franklin Resources Inc.2,305,096$3.94M0.0%-25.1%3.806%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.1,651,472$2.82M0.0%-2.2%2.727%Search for SEC Filing on Google Icon
10/23/2025SG Americas Securities LLC403,878$0.69M0.0%N/A0.667%Search for SEC Filing on Google Icon
8/19/2025Marex Group plc33,300$39K0.0%N/A0.055%Search for SEC Filing on Google Icon
8/18/2025Hudson Bay Capital Management LP825,004$0.96M0.0%+7.1%1.362%Search for SEC Filing on Google Icon
8/15/2025Hudson Bay Capital Management LP825,004$0.96M0.0%+7.1%1.362%Search for SEC Filing on Google Icon
8/15/2025Bank of America Corp DE147,009$0.17M0.0%-7.5%0.243%Search for SEC Filing on Google Icon
8/14/2025Jane Street Group LLC175,670$0.20M0.0%+1,526.0%0.290%Search for SEC Filing on Google Icon
8/14/2025Qube Research & Technologies Ltd57,559$67K0.0%+160.0%0.095%Search for SEC Filing on Google Icon
8/13/2025Marshall Wace LLP137,943$0.16M0.0%N/A0.228%Search for SEC Filing on Google Icon
8/12/2025Franklin Resources Inc.3,077,039$3.57M0.0%-2.1%5.080%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC396,626$0.46M0.0%-54.0%0.655%Search for SEC Filing on Google Icon
8/1/2025Y Intercept Hong Kong Ltd250,848$0.29M0.0%N/A0.414%Search for SEC Filing on Google Icon
6/27/2025Goldman Sachs Group Inc.196,207$0.22M0.0%-10.5%0.324%Search for SEC Filing on Google Icon
5/16/2025Goldman Sachs Group Inc.196,207$0.22M0.0%-10.5%0.324%Search for SEC Filing on Google Icon
5/16/2025AQR Capital Management LLC41,735$46K0.0%N/A0.069%Search for SEC Filing on Google Icon
5/16/2025ADAR1 Capital Management LLC146,183$0.16M0.0%+55.0%0.241%Search for SEC Filing on Google Icon
5/12/2025Nuveen LLC78,446$86K0.0%N/A0.130%Search for SEC Filing on Google Icon
5/12/2025Invesco Ltd.127,798$0.14M0.0%+544.1%0.211%Search for SEC Filing on Google Icon
2/17/2025Two Sigma Investments LP301,268$0.52M0.0%-2.7%0.501%Search for SEC Filing on Google Icon
2/17/2025Two Sigma Advisers LP499,100$0.86M0.0%+6.4%0.831%Search for SEC Filing on Google Icon
2/17/2025Millennium Management LLC1,344,745$2.31M0.0%-26.7%2.238%Search for SEC Filing on Google Icon
2/17/2025Deutsche Bank AG96,995$0.17M0.0%+468.7%0.161%Search for SEC Filing on Google Icon
2/17/2025Bank of America Corp DE148,668$0.26M0.0%+7.2%0.247%Search for SEC Filing on Google Icon
2/14/2025Jane Street Group LLC30,740$53K0.0%-116.1%0.051%Search for SEC Filing on Google Icon
2/14/2025Susquehanna Fundamental Investments LLC14,731$25K0.0%N/A0.025%Search for SEC Filing on Google Icon
2/14/2025Rock Springs Capital Management LP1,838,916$3.16M0.1%-20.0%3.061%Search for SEC Filing on Google Icon
2/14/2025Tower Research Capital LLC TRC20,624$35K0.0%+427.5%0.034%Search for SEC Filing on Google Icon
2/14/2025Dimensional Fund Advisors LP98,016$0.17M0.0%+73.3%0.163%Search for SEC Filing on Google Icon
2/13/2025Barclays PLC93,082$0.16M0.0%+50.1%0.155%Search for SEC Filing on Google Icon
2/13/2025Renaissance Technologies LLC257,213$0.44M0.0%-16.0%0.428%Search for SEC Filing on Google Icon
2/13/2025ADAR1 Capital Management LLC94,294$0.16M0.0%N/A0.157%Search for SEC Filing on Google Icon
2/12/2025Franklin Resources Inc.3,273,633$5.63M0.0%-7.8%5.449%Search for SEC Filing on Google Icon
2/12/2025JPMorgan Chase & Co.937,908$1.61M0.0%+1,387.2%1.561%Search for SEC Filing on Google Icon
2/11/2025Clune & Associates LTD.16,500$28K0.0%N/A0.027%Search for SEC Filing on Google Icon
2/11/2025Intech Investment Management LLC18,847$32K0.0%N/A0.031%Search for SEC Filing on Google Icon
2/6/2025Charles Schwab Investment Management Inc.126,747$0.22M0.0%+16.6%0.211%Search for SEC Filing on Google Icon
1/30/2025Rhumbline Advisers53,076$91K0.0%-40.0%0.088%Search for SEC Filing on Google Icon
1/17/2025SG Americas Securities LLC25,631$44K0.0%+44.2%0.043%Search for SEC Filing on Google Icon
12/26/2024JPMorgan Chase & Co.63,066$0.16M0.0%+252.8%0.105%Search for SEC Filing on Google Icon
11/27/2024Franklin Resources Inc.3,549,069$8.34M0.0%+5.4%5.907%Search for SEC Filing on Google Icon
11/19/2024Barclays PLC61,997$0.15M0.0%+189.1%0.103%Search for SEC Filing on Google Icon
11/16/2024Geode Capital Management LLC864,528$2.14M0.0%+6.5%1.439%Search for SEC Filing on Google Icon
11/15/2024Barclays PLC61,997$0.15M0.0%+189.1%0.103%Search for SEC Filing on Google Icon
11/15/2024State Street Corp516,406$1.28M0.0%+18.3%0.860%Search for SEC Filing on Google Icon
11/13/2024FMR LLC2,028,117$5.03M0.0%+0.3%3.376%Search for SEC Filing on Google Icon
11/13/2024The Manufacturers Life Insurance Company52,333$0.13M0.0%-12.8%0.087%Search for SEC Filing on Google Icon
10/3/2024SG Americas Securities LLC17,772$44K0.0%N/A0.030%Search for SEC Filing on Google Icon
8/16/2024Murchinson Ltd.56,250$0.14M0.0%N/A0.094%Search for SEC Filing on Google Icon
8/15/2024Millennium Management LLC1,954,085$4.73M0.0%-25.7%3.252%Search for SEC Filing on Google Icon
8/14/2024Murchinson Ltd.56,250$0.14M0.0%N/A0.094%Search for SEC Filing on Google Icon
8/12/2024Marathon Trading Investment Management LLC26,298$64K0.0%-56.2%0.044%Search for SEC Filing on Google Icon
8/9/2024Renaissance Technologies LLC338,100$0.82M0.0%N/A0.563%Search for SEC Filing on Google Icon
8/9/2024Dimensional Fund Advisors LP56,548$0.14M0.0%-8.4%0.094%Search for SEC Filing on Google Icon
8/8/2024American Century Companies Inc.45,444$0.11M0.0%+31.3%0.076%Search for SEC Filing on Google Icon
8/1/2024Rhumbline Advisers52,323$0.13M0.0%N/A0.087%Search for SEC Filing on Google Icon
7/26/2024Bank of New York Mellon Corp126,422$0.31M0.0%N/A0.210%Search for SEC Filing on Google Icon
7/19/2024Gladius Capital Management LP10,939$26K0.0%N/A0.018%Search for SEC Filing on Google Icon
5/17/2024Ikarian Capital LLC266,435$1.08M0.1%-15.5%0.443%Search for SEC Filing on Google Icon
5/15/2024Price T Rowe Associates Inc. MD1,098,276$4.45M0.0%N/A1.828%Search for SEC Filing on Google Icon
5/10/2024Vanguard Group Inc.1,665,058$6.74M0.0%-9.5%2.771%Search for SEC Filing on Google Icon
5/7/2024Susquehanna Fundamental Investments LLC62,518$0.25M0.0%N/A0.104%Search for SEC Filing on Google Icon
5/7/2024SG Americas Securities LLC12,856$52K0.0%N/A0.021%Search for SEC Filing on Google Icon
2/23/2024Chicago Partners Investment Group LLC18,315$70K0.0%+34.9%0.032%Search for SEC Filing on Google Icon
2/15/2024Parkman Healthcare Partners LLC603,497$2.32M0.3%+20.7%1.042%Search for SEC Filing on Google Icon
2/9/2024Franklin Resources Inc.3,358,809$12.90M0.0%+18.3%5.800%Search for SEC Filing on Google Icon
2/7/2024Jump Financial LLC103,000$0.40M0.0%+203.8%0.178%Search for SEC Filing on Google Icon
12/7/2023Hudson Bay Capital Management LP525,000$2.18M0.0%+32.9%0.907%Search for SEC Filing on Google Icon
12/6/2023Citigroup Inc.38,498$0.16M0.0%+5,423.4%0.066%Search for SEC Filing on Google Icon
11/15/2023RA Capital Management L.P.14,932,063$61.97M1.2%+52.8%25.803%Search for SEC Filing on Google Icon
11/15/2023Rock Springs Capital Management LP2,812,579$11.67M0.3%N/A4.860%Search for SEC Filing on Google Icon
11/15/2023Laurion Capital Management LP1,895,023$7.86M0.0%+57.1%3.275%Search for SEC Filing on Google Icon
11/14/2023Schonfeld Strategic Advisors LLC645,112$2.68M0.0%N/A1.115%Search for SEC Filing on Google Icon
11/14/2023Knollwood Investment Advisory LLC1,628,510$6.76M3.2%N/A2.814%Search for SEC Filing on Google Icon
11/13/2023DekaBank Deutsche Girozentrale40,000$0.17M0.0%N/A0.069%Search for SEC Filing on Google Icon
11/8/2023Pathstone Family Office LLC478,790$1.99M0.0%+2.5%0.827%Search for SEC Filing on Google Icon
11/7/2023Jump Financial LLC33,900$0.14M0.0%N/A0.059%Search for SEC Filing on Google Icon
11/3/2023Intrepid Financial Planning Group LLC30,150$0.13M0.1%+49.6%0.052%Search for SEC Filing on Google Icon
10/26/2023Chicago Partners Investment Group LLC13,579$56K0.0%N/A0.023%Search for SEC Filing on Google Icon
9/21/2023Baystate Wealth Management LLC18,020$87K0.0%N/A0.031%Search for SEC Filing on Google Icon
8/14/2023Deep Track Capital LP3,916,361$18.84M0.9%-0.9%6.768%Search for SEC Filing on Google Icon
8/14/2023Prelude Capital Management LLC31,100$0.15M0.0%N/A0.076%Search for SEC Filing on Google Icon
8/2/2023Catalyst Financial Partners LLC89,699$0.43M0.2%N/A0.219%Search for SEC Filing on Google Icon
8/2/2023Baystate Wealth Management LLC18,020$87K0.0%N/A0.044%Search for SEC Filing on Google Icon
7/27/2023Pinnacle Associates Ltd.18,020$87K0.0%N/A0.044%Search for SEC Filing on Google Icon
5/16/2023Great Point Partners LLC1,051,267$4.27M0.8%-5.8%2.563%Search for SEC Filing on Google Icon
5/15/2023Commodore Capital LP400,000$1.62M0.2%-19.7%0.975%Search for SEC Filing on Google Icon
5/15/2023Guardian Point Capital LP130,000$0.53M0.4%-56.7%0.317%Search for SEC Filing on Google Icon
5/3/2023Jump Financial LLC10,183$41K0.0%-52.1%0.025%Search for SEC Filing on Google Icon
5/2/2023Intrepid Financial Planning Group LLC30,150$0.12M0.1%+201.5%0.073%Search for SEC Filing on Google Icon
4/26/2023Chicago Partners Investment Group LLC12,332$47K0.0%-34.0%0.030%Search for SEC Filing on Google Icon
2/14/2023Moore Capital Management LP27,578$0.15M0.0%-93.5%0.068%Search for SEC Filing on Google Icon
Data available starting January 2016

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Acumen Pharmaceuticals logo
Acumen Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, develops targeted therapies for the treatment of Alzheimer's disease. The company focuses on advancing a targeted immunotherapy drug candidate sabirnetug (ACU193), a recombinant humanized immunoglobulin gamma 2 that completed Phase I clinical trial to target soluble amyloid-beta oligomers. The company has a license agreement with Lonza Sales AG to manufacture and commercialize sabirnetug; and a collaboration and license agreement with Halozyme, Inc. for the development of a subcutaneous formulation of sabirnetug. Acumen Pharmaceuticals, Inc. was incorporated in 1996 and is headquartered in Charlottesville, Virginia.
Read More on Acumen Pharmaceuticals

Today's Range

Now: $1.98
Low: $1.90
High: $2.00

50 Day Range

MA: $1.93
Low: $1.42
High: $2.33

52 Week Range

Now: $1.98
Low: $0.86
High: $2.46

Volume

168,948 shs

Average Volume

161,674 shs

Market Capitalization

$119.93 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.25

Who are the company insiders with the largest holdings of Acumen Pharmaceuticals?

Acumen Pharmaceuticals' top insider shareholders include:
  1. Daniel Joseph Oconnell (CEO)
  2. Matt Zuga (CFO)
  3. Eric Siemers (Insider)
  4. Russell Barton (COO)
  5. Derek M Meisner (Insider)
Learn More about top insider investors at Acumen Pharmaceuticals.

Who are the major institutional investors of Acumen Pharmaceuticals?

Acumen Pharmaceuticals' top institutional investors include:
  1. Franklin Resources Inc. — 3.81%
  2. Vanguard Group Inc. — 2.73%
  3. ADAR1 Capital Management LLC — 1.47%
  4. Pathstone Holdings LLC — 1.42%
  5. Millennium Management LLC — 0.99%
  6. SG Americas Securities LLC — 0.67%
Learn More about top institutional investors of Acumen Pharmaceuticals stock.

Which major investors are selling Acumen Pharmaceuticals stock?

Within the previous quarter, ABOS stock was sold by these institutional investors:
  1. Millennium Management LLC
  2. Franklin Resources Inc.
  3. Pathstone Holdings LLC
  4. Vanguard Group Inc.
  5. ADAR1 Capital Management LLC
  6. Qube Research & Technologies Ltd
During the previous year, company insiders that have sold Acumen Pharmaceuticals company stock include:
  1. Daniel Joseph Oconnell (CEO)
  2. Matt Zuga (CFO)
  3. Eric Siemers (Insider)
  4. Russell Barton (COO)
Learn More investors selling Acumen Pharmaceuticals stock.

Which major investors are buying Acumen Pharmaceuticals stock?

During the previous quarter, ABOS stock was bought by institutional investors including:
  1. SG Americas Securities LLC
  2. Bridgeway Capital Management LLC
  3. Bank of America Corp DE
  4. Susquehanna International Group LLP
  5. Jacobs Levy Equity Management Inc.