Acumen Pharmaceuticals Inc Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 05/15/2026 | 20.99 M | $49.54 M | 40.59% | 34.66% |
| SANDS CAPITAL VENTURES, LLC | 05/08/2026 | 3.72 M | $8.78 M | 8.87% | 6.14% |
| ALYESKA INVESTMENT GROUP, L.P. | 05/15/2026 | 2.45 M | $5.78 M | 161.25% | 4.05% |
| FRANKLIN RESOURCES INC | 05/13/2026 | 2.31 M | $5.44 M | 0.00% | 3.81% |
| ADAR1 CAPITAL MANAGEMENT, LLC | 05/18/2026 | 2.16 M | $5.09 M | 141.96% | 3.56% |
| KNOLLWOOD INVESTMENT ADVISORY, LLC | 05/14/2026 | 1.63 M | $3.84 M | 0.00% | 2.69% |
| 05/15/2026 | 1.51 M | $3.55 M | 100.00% | 2.49% | |
| FMR LLC | 05/15/2026 | 1.16 M | $2.73 M | -42.92% | 1.91% |
| IKARIAN CAPITAL, LLC | 05/15/2026 | 1.05 M | $2.49 M | 314.37% | 1.74% |
| HUDSON BAY CAPITAL MANAGEMENT LP | 05/13/2026 | 968.94 K | $2.29 M | 33.65% | 1.60% |
| PATHSTONE HOLDINGS, LLC | 05/11/2026 | 859.11 K | $2.03 M | 0.00% | 1.42% |
| SG AMERICAS SECURITIES, LLC | 04/16/2026 | 719.26 K | $1.70 M | 79.34% | 1.19% |
| MILLENNIUM MANAGEMENT LLC | 05/15/2026 | 659.68 K | $1.56 M | 12.93% | 1.09% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 05/15/2026 | 601.48 K | $1.42 M | 61.17% | 0.99% |
| TWO SIGMA INVESTMENTS, LP | 05/15/2026 | 530.81 K | $1.25 M | 270.62% | 0.88% |
| LAURION CAPITAL MANAGEMENT LP | 05/14/2026 | 525.44 K | $1.24 M | -39.40% | 0.87% |
| RENAISSANCE TECHNOLOGIES LLC | 05/14/2026 | 473.95 K | $1.12 M | 12.02% | 0.78% |
| GEODE CAPITAL MANAGEMENT, LLC | 05/15/2026 | 416.24 K | $982.76 K | 1.47% | 0.69% |
| BANK OF AMERICA CORP /DE/ | 05/18/2026 | 320.22 K | $755.71 K | 33.34% | 0.53% |
| BOOTHBAY FUND MANAGEMENT, LLC | 05/15/2026 | 273.01 K | $644.31 K | 589.69% | 0.45% |
| GOLDMAN SACHS GROUP INC | 05/15/2026 | 206.68 K | $487.77 K | 75.38% | 0.34% |
| VANGUARD FIDUCIARY TRUST CO | 05/08/2026 | 199.23 K | $470.17 K | 100.00% | 0.33% |
| MARSHALL WACE, LLP | 05/15/2026 | 192.89 K | $455.22 K | 822.60% | 0.32% |
| ACADIAN ASSET MANAGEMENT LLC | 05/13/2026 | 185.85 K | $435.00 K | 21.65% | 0.31% |
| BLACKROCK, INC. | 05/13/2026 | 178.33 K | $420.85 K | 5.20% | 0.29% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 05/15/2026 | 176.17 K | $415.76 K | 3.53% | 0.29% |
| STATE STREET CORP | 05/15/2026 | 151.73 K | $358.08 K | 51.46% | 0.25% |
| MORGAN STANLEY | 05/15/2026 | 144.58 K | $341.22 K | -13.37% | 0.24% |
| QUBE RESEARCH & TECHNOLOGIES LTD | 05/15/2026 | 120.39 K | $284.12 K | 150.89% | 0.20% |
| DIMENSIONAL FUND ADVISORS LP | 05/07/2026 | 119.76 K | $281.76 K | 144.09% | 0.20% |
| CATALYST FINANCIAL PARTNERS LLC | 05/12/2026 | 89.70 K | $211.69 K | 0.00% | 0.15% |
| JANE STREET GROUP, LLC | 05/12/2026 | 89.66 K | $211.60 K | -36.91% | 0.15% |
| PFG INVESTMENTS, LLC | 04/27/2026 | 80.85 K | $190.81 K | 325.53% | 0.13% |
| NORTHERN TRUST CORP | 05/14/2026 | 75.21 K | $177.50 K | 0.00% | 0.12% |
| POINT72 ASSET MANAGEMENT, L.P. | 05/15/2026 | 67.38 K | $159.01 K | 85.27% | 0.11% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 05/15/2026 | 56.00 K | $132.16 K | 100.00% | 0.09% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 05/15/2026 | 55.90 K | $131.92 K | 100.00% | 0.09% |
| PROSPERA FINANCIAL SERVICES INC | 04/14/2026 | 50.00 K | $118.00 K | 0.00% | 0.08% |
| CATALYST FUNDS MANAGEMENT PTY LTD | 05/11/2026 | 45.60 K | $107.62 K | 54.05% | 0.08% |
| VERDAD ADVISERS, LP | 05/15/2026 | 37.28 K | $87.98 K | 100.00% | 0.06% |
| UBS GROUP AG | 05/05/2026 | 37.15 K | $87.67 K | 72.28% | 0.06% |
| RANGELEY CAPITAL, LLC | 05/15/2026 | 35.00 K | $82.60 K | 100.00% | 0.06% |
| BARCLAYS PLC | 05/15/2026 | 30.68 K | $72.40 K | 2.29% | 0.05% |
| INTREPID FINANCIAL PLANNING GROUP LLC | 05/13/2026 | 30.15 K | $71.15 K | 0.00% | 0.05% |
| OMERS ADMINISTRATION CORP | 05/15/2026 | 28.60 K | $67.50 K | 27.37% | 0.05% |
| AXQ CAPITAL, LP | 05/13/2026 | 28.49 K | $67.23 K | 100.00% | 0.05% |
| JANE STREET GROUP, LLC | 05/12/2026 | 23.70 K | $55.93 K | 100.00% | 0.04% |
| INDEPENDENT ADVISOR ALLIANCE | 05/12/2026 | 19.00 K | $44.84 K | 0.00% | 0.03% |
| JANE STREET GROUP, LLC | 05/12/2026 | 18.90 K | $44.60 K | 100.00% | 0.03% |
| PINNACLE ASSOCIATES LTD | 04/22/2026 | 18.02 K | $42.53 K | 0.00% | 0.03% |
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Acumen Pharmaceuticals Inc institutional Ownership - FAQ's
During the previous two years, 101 institutional investors and hedge funds held shares of Acumen Pharmaceuticals Inc. The most heavily invested institutionals were:
RA CAPITAL MANAGEMENT, L.P.: 20.99 M
Sands Capital Ventures, LLC: 3.72 M
Alyeska Investment Group, L.P.: 2.45 M
FRANKLIN RESOURCES INC: 2.31 M
ADAR1 Capital Management, LLC: 2.16 M
Knollwood Investment Advisory, LLC: 1.63 M
75.96% of Acumen Pharmaceuticals Inc stock is owned by institutional investors.
Institutional investors have bought a total of 49.50 M shares in the last 24 months. This purchase volume represents approximately $155.43 M in transactions.