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, Q1 2023
Institutional positions in Acumen Pharmaceuticals, Inc. as of Mar 31, 2023. 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
- 62
- +2 vs. Q4 2022
- Shares held
- 27.8M
- −971.8K (−3.4%) vs. Q4 2022
- Total value
- $112.8M
- −$42.4M (−27.3%) vs. Q4 2022
- New holders
- 10
- 17 more added
- Sold out
- 8
- 22 more reduced
Compare with Q4 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 | $107.7M |
| Q2 2024 | 81 | $105.5M |
| Q1 2024 | 80 | $175.6M |
| Q4 2023 | 67 | $147.6M |
| Q3 2023 | 66 | $179.2M |
| Q2 2023 | 53 | $126.6M |
| Q1 2023 | 62 | $112.8M |
| Q4 2022 | 60 | $155.1M |
| Q3 2022 | 50 | $275.9M |
| 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, Q1 2023
Shares, value and share of portfolio for each institution holding Acumen Pharmaceuticals, Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 9,770,773 | $39.7M | 0.90% | 00.0% | Unchanged |
| Deep Track Capital, LP | 3,952,000 | $16.0M | 0.68% | 00.0% | Unchanged |
| Sands Capital Ventures, LLC | 3,417,075 | $13.9M | 3.43% | 00.0% | Unchanged |
| Knollwood Investment Advisory, LLC | 1,678,510 | $6.81M | 2.34% | 00.0% | Unchanged |
| Laurion Capital Management LP | 1,206,548 | $4.90M | 0.22% | 00.0% | Unchanged |
| Great Point Partners LLC | 1,051,267 | $4.27M | 0.84% | −65,314−5.8% | Reduced |
| Vanguard Group Inc | 734,737 | $2.98M | 0.00% | +18,900+2.6% | Added |
| BlackRock Inc. | 671,631 | $2.73M | 0.00% | −473,056−41.3% | Reduced |
| Millennium Management LLC | 645,883 | $2.62M | 0.00% | −19,833−3.0% | Reduced |
| Driehaus Capital Management LLC | 550,349 | $2.23M | 0.03% | −13,515−2.4% | Reduced |
| Woodline Partners LP | 426,172 | $1.73M | 0.02% | 00.0% | Unchanged |
| Commodore Capital LP | 400,000 | $1.62M | 0.25% | −98,315−19.7% | Reduced |
| Pathstone Family Office, LLC | 392,060 | $1.59M | 0.03% | −138,270−26.1% | Reduced |
| Hudson Bay Capital Management LP | 357,000 | $1.45M | 0.02% | +117,000+48.8% | Added |
| Ikarian Capital, LLC | 254,945 | $1.04M | 0.43% | 00.0% | Unchanged |
| Walleye Capital LLC | 196,539 | $797.9K | 0.02% | +182,648+1,314.9% | Added |
| Geode Capital Management, LLC | 166,820 | $677.3K | 0.00% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 160,208 | $650.4K | 0.00% | −81,633−33.8% | Reduced |
| Silverarc Capital Management, LLC | 146,922 | $596.5K | 0.27% | −148,193−50.2% | Reduced |
| J. Goldman & Co LP | 135,000 | $548.1K | 0.03% | +135,000 | New |
| Guardian Point Capital, LP | 130,000 | $527.8K | 0.44% | −170,000−56.7% | Reduced |
| Susquehanna International Group, LLP | 129,794 | $527.0K | 0.00% | +40,233+44.9% | Added |
| Bridgeway Capital Management, LLC | 117,833 | $478.4K | 0.01% | +34,233+40.9% | Added |
| WMS Partners, LLC | 98,301 | $399.1K | 0.03% | 00.0% | Unchanged |
| Jane Street Group, LLC | 74,541 | $302.6K | 0.00% | +64,343+630.9% | Added |
| Dimensional Fund Advisors LP | 66,779 | $271.1K | 0.00% | +66,779 | New |
| Boothbay Fund Management, LLC | 64,526 | $262.0K | 0.01% | +1,611+2.6% | Added |
| Atom Investors LP | 62,952 | $255.6K | 0.14% | +511+0.8% | Added |
| UBS Oconnor LLC | 61,358 | $249.1K | 0.01% | +61,358 | New |
| State Street Corp | 59,778 | $242.7K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 54,082 | $219.6K | 0.00% | −33,794−38.5% | Reduced |
| Morgan Stanley | 51,508 | $209.1K | 0.00% | +25,824+100.5% | Added |
| Qube Research & Technologies Ltd | 44,385 | $180.2K | 0.00% | −8,978−16.8% | Reduced |
| HRT Financial LP | 43,115 | $175.0K | 0.00% | +22,443+108.6% | Added |
| Goldman Sachs Group Inc | 42,302 | $171.7K | 0.00% | +25,311+149.0% | Added |
| Citigroup Inc | 41,377 | $168.0K | 0.00% | −4,197−9.2% | Reduced |
| Renaissance Technologies LLC | 37,445 | $152.0K | 0.00% | +5,145+15.9% | Added |
| Northern Trust Corp | 32,158 | $130.6K | 0.00% | −2,226−6.5% | Reduced |
| 683 Capital Management, LLC | 31,246 | $126.9K | 0.01% | 00.0% | Unchanged |
| Intrepid Financial Planning Group LLC | 30,150 | $122.4K | 0.06% | +20,150+201.5% | Added |
| Bank of America Corp | 27,845 | $113.1K | 0.00% | −10,769−27.9% | Reduced |
| Barclays PLC | 25,952 | $105.4K | 0.00% | −8,509−24.7% | Reduced |
| Man Group plc | – | $104.5K | 0.00% | – | – |
| Squarepoint Ops LLC | 19,343 | $78.5K | 0.00% | +19,343 | New |
| LMR Partners LLP | 16,892 | $68.6K | 0.00% | +16,892 | New |
| Cubist Systematic Strategies, LLC | 14,899 | $60.5K | 0.00% | −3,093−17.2% | Reduced |
| Citadel Advisors LLC | 14,081 | $57.2K | 0.00% | +14,081 | New |
| Chicago Partners Investment Group LLC | 12,332 | $46.6K | 0.00% | −6,347−34.0% | Reduced |
| Jump Financial, LLC | 10,183 | $41.3K | 0.00% | −11,056−52.1% | Reduced |
| Group One Trading, L.P. | 4,300 | $17.5K | 0.00% | −9,209−68.2% | Reduced |
| Point72 Asset Management, L.P. | 3,954 | $16.1K | 0.00% | +3,954 | New |
| Point72 Middle East FZE | 3,415 | $13.9K | 0.00% | +3,415 | New |
| UBS Group AG | 3,137 | $12.7K | 0.00% | +3,137 | New |
| Wells Fargo & Company | 3,096 | $12.6K | 0.00% | +1,303+72.7% | Added |
| Tower Research Capital LLC (TRC) | 3,022 | $12.0K | 0.00% | −250−7.6% | Reduced |
| Cutler Group LP | 1,420 | $5.00K | 0.00% | −1,679−54.2% | Reduced |
| JPMorgan Chase & Co | 1,237 | $5.00K | 0.00% | +108+9.6% | Added |
| Kelly Financial Services LLC | 944 | $3.83K | 0.00% | +944 | New |
| FMR LLC | 679 | $2.76K | 0.00% | −220−24.5% | Reduced |
| China Universal Asset Management Co., Ltd. | 555 | $2.25K | 0.00% | +139+33.4% | Added |
| Royal Bank of Canada | 384 | $2.00K | 0.00% | +379+7,580.0% | Added |
| Daiwa Securities Group Inc. | 165 | $1.00K | 0.00% | 00.0% | Unchanged |
| Perceptive Advisors LLC | 0 | $0 | 0.00% | −347,450−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −58,400−100.0% | Sold out |
| Cheyne Capital Management (UK) LLP | 0 | $0 | 0.00% | −55,829−100.0% | Sold out |
| Moore Capital Management, LP | 0 | $0 | 0.00% | −27,578−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −15,741−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −11,263−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −10,525−100.0% | Sold out |
| Ellevest, Inc. | 0 | $0 | 0.00% | −257−100.0% | Sold out |