Acumen Pharmaceuticals, Inc.
ABOS- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001576885
No open-market purchases or sales by Acumen Pharmaceuticals, Inc. insiders were filed in the last 90 days; 96 institutions reported holding it in 13F filings for Q2 2026, worth $127.8M in total; no superinvestor holds it.
13F holders, Q4 2022
Institutional positions in Acumen Pharmaceuticals, Inc. as of Dec 31, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 60
- +10 vs. Q3 2022
- Shares held
- 29.3M
- +1.50M (+5.4%) vs. Q3 2022
- Total value
- $158.0M
- −$120.4M (−43.2%) vs. Q3 2022
- New holders
- 19
- 19 more added
- Sold out
- 9
- 16 more reduced
Compare with Q3 2022: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ABOS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 96 | $127.8M |
| Q1 2026 | 84 | $108.5M |
| Q4 2025 | 71 | $75.2M |
| Q3 2025 | 69 | $61.1M |
| Q2 2025 | 71 | $43.6M |
| Q1 2025 | 81 | $44.8M |
| Q4 2024 | 80 | $73.2M |
| Q3 2024 | 73 | $107.8M |
| Q2 2024 | 81 | $105.5M |
| Q1 2024 | 80 | $176.3M |
| Q4 2023 | 67 | $147.8M |
| Q3 2023 | 66 | $181.4M |
| Q2 2023 | 53 | $126.6M |
| Q1 2023 | 62 | $114.0M |
| Q4 2022 | 60 | $158.0M |
| Q3 2022 | 50 | $278.4M |
| Q2 2022 | 47 | $120.5M |
| Q1 2022 | 57 | $106.1M |
| Q4 2021 | 52 | $172.9M |
| Q3 2021 | 41 | $357.4M |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2022
Shares, value and share of portfolio for each institution holding Acumen Pharmaceuticals, Inc.; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 9,770,773 | $52.8M | 1.07% | 00.0% | Unchanged |
| Deep Track Capital, LP | 3,952,000 | $21.3M | 0.93% | +173,182+4.6% | Added |
| Sands Capital Ventures, LLC | 3,417,075 | $18.5M | 5.05% | 00.0% | Unchanged |
| Knollwood Investment Advisory, LLC | 1,678,510 | $9.06M | 3.55% | +1,678,510 | New |
| Laurion Capital Management LP | 1,206,548 | $6.52M | 0.18% | 00.0% | Unchanged |
| BlackRock Inc. | 1,144,687 | $6.18M | 0.00% | +29,660+2.7% | Added |
| Great Point Partners LLC | 1,116,581 | $6.03M | 1.25% | −83,419−7.0% | Reduced |
| Pathstone Family Office, LLC | 1,060,660 | $5.73M | 0.05% | +554,120+109.4% | Added |
| Vanguard Group Inc | 715,837 | $3.87M | 0.00% | +64,791+10.0% | Added |
| Millennium Management LLC | 665,716 | $3.60M | 0.00% | +195,224+41.5% | Added |
| Driehaus Capital Management LLC | 563,864 | $3.04M | 0.05% | −7,560−1.3% | Reduced |
| Commodore Capital LP | 498,315 | $2.69M | 0.41% | −601,685−54.7% | Reduced |
| Woodline Partners LP | 426,172 | $2.30M | 0.03% | −5,986−1.4% | Reduced |
| Perceptive Advisors LLC | 347,450 | $1.88M | 0.05% | −52,550−13.1% | Reduced |
| Guardian Point Capital, LP | 300,000 | $1.62M | 1.28% | −100,000−25.0% | Reduced |
| Silverarc Capital Management, LLC | 295,115 | $1.59M | 0.55% | −124,885−29.7% | Reduced |
| Ikarian Capital, LLC | 254,945 | $1.38M | 0.57% | −95,055−27.2% | Reduced |
| D. E. Shaw & Co., Inc. | 241,841 | $1.31M | 0.00% | +77,199+46.9% | Added |
| Hudson Bay Capital Management LP | 240,000 | $1.30M | 0.02% | +240,000 | New |
| Geode Capital Management, LLC | 166,820 | $900.0K | 0.00% | +9,175+5.8% | Added |
| WMS Partners, LLC | 98,301 | $530.8K | 0.05% | −81,767−45.4% | Reduced |
| Susquehanna International Group, LLP | 89,561 | $483.6K | 0.00% | +62,561+231.7% | Added |
| Two Sigma Investments, LP | 87,876 | $474.5K | 0.00% | +87,876 | New |
| Bridgeway Capital Management, LLC | 83,600 | $451.4K | 0.01% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 62,915 | $339.7K | 0.01% | +335+0.5% | Added |
| Atom Investors LP | 62,441 | $337.2K | 0.17% | +62,441 | New |
| Bank of Montreal | 58,400 | $325.9K | 0.00% | +58,400 | New |
| State Street Corp | 59,778 | $322.8K | 0.00% | +12,400+26.2% | Added |
| Cheyne Capital Management (UK) LLP | 55,829 | $301.5K | 0.53% | +55,829 | New |
| Qube Research & Technologies Ltd | 53,363 | $288.2K | 0.00% | +36,650+219.3% | Added |
| Citigroup Inc | 45,574 | $246.1K | 0.00% | +37,258+448.0% | Added |
| Bank of America Corp | 38,614 | $208.5K | 0.00% | +16,041+71.1% | Added |
| Barclays PLC | 34,461 | $186.1K | 0.00% | +300+0.9% | Added |
| Northern Trust Corp | 34,384 | $185.7K | 0.00% | +8,642+33.6% | Added |
| Renaissance Technologies LLC | 32,300 | $174.0K | 0.00% | +32,300 | New |
| 683 Capital Management, LLC | 31,246 | $168.7K | 0.02% | +31,246 | New |
| Moore Capital Management, LP | 27,578 | $148.9K | 0.00% | −395,324−93.5% | Reduced |
| Morgan Stanley | 25,684 | $138.7K | 0.00% | +6,770+35.8% | Added |
| Man Group plc | 21,529 | $116.3K | 0.00% | +21,529 | New |
| Jump Financial, LLC | 21,239 | $114.7K | 0.01% | +21,239 | New |
| HRT Financial LP | 20,672 | $111.0K | 0.00% | +20,672 | New |
| Chicago Partners Investment Group LLC | 18,679 | $109.5K | 0.01% | +7,594+68.5% | Added |
| Cubist Systematic Strategies, LLC | 17,992 | $97.2K | 0.00% | −4,950−21.6% | Reduced |
| Goldman Sachs Group Inc | 16,991 | $91.8K | 0.00% | −5,626−24.9% | Reduced |
| Acadian Asset Management LLC | 15,741 | $85.0K | 0.00% | +15,741 | New |
| Walleye Capital LLC | 13,891 | $75.0K | 0.00% | +13,891 | New |
| Group One Trading, L.P. | 13,509 | $72.9K | 0.00% | +629+4.9% | Added |
| Lighthouse Investment Partners, LLC | 11,263 | $60.8K | 0.01% | +11,263 | New |
| Dynamic Technology Lab Private Ltd | 10,525 | $57.0K | 0.01% | +10,525 | New |
| Jane Street Group, LLC | 10,198 | $55.1K | 0.00% | +10,198 | New |
| Intrepid Financial Planning Group LLC | 10,000 | $54.0K | 0.03% | +10,000 | New |
| Tower Research Capital LLC (TRC) | 3,272 | $18.0K | 0.00% | −4,845−59.7% | Reduced |
| Cutler Group LP | 3,099 | $16.0K | 0.00% | +3,099 | New |
| Wells Fargo & Company | 1,793 | $9.68K | 0.00% | −297−14.2% | Reduced |
| JPMorgan Chase & Co | 1,129 | $6.00K | 0.00% | −1,298−53.5% | Reduced |
| FMR LLC | 899 | $4.86K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 416 | $2.25K | 0.00% | +37+9.8% | Added |
| Ellevest, Inc. | 257 | $1.39K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 165 | $1.00K | 0.00% | +165 | New |
| Royal Bank of Canada | 5 | $0 | 0.00% | −46−90.2% | Reduced |
| EAM Investors, LLC | 0 | $0 | 0.00% | −208,571−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −152,429−100.0% | Sold out |
| EAM Global Investors LLC | 0 | $0 | 0.00% | −133,161−100.0% | Sold out |
| Endurant Capital Management LP | 0 | $0 | 0.00% | −55,328−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −40,936−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −10,092−100.0% | Sold out |
| Fiduciary Group LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −2,687−100.0% | Sold out |
| Spire Wealth Management | 0 | $0 | 0.00% | −2,100−100.0% | Sold out |