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 2024
Institutional positions in Acumen Pharmaceuticals, Inc. as of Mar 31, 2024. 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
- 80
- +13 vs. Q4 2023
- Shares held
- 43.4M
- +4.93M (+12.8%) vs. Q4 2023
- Total value
- $175.6M
- +$28.0M (+18.9%) vs. Q4 2023
- New holders
- 24
- 22 more added
- Sold out
- 11
- 24 more reduced
Compare with Q4 2023: 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 2024
Shares, value and share of portfolio for each institution holding Acumen Pharmaceuticals, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal Bank of Canada | 102 | $0 | 0.00% | −566−84.7% | Reduced |
| Macquarie Group Ltd | 1,247 | $5 | 0.00% | +1,247 | New |
| Kelly Financial Services LLC | 944 | $3.82K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 1,208 | $4.89K | 0.00% | −997−45.2% | Reduced |
| Tower Research Capital LLC (TRC) | 1,410 | $5.71K | 0.00% | −27,679−95.2% | Reduced |
| Sandy Spring Bank | 1,500 | $6.08K | 0.00% | +1,500 | New |
| Cubist Systematic Strategies, LLC | 2,396 | $9.70K | 0.00% | −31,509−92.9% | Reduced |
| UBS Group AG | 6,643 | $26.9K | 0.00% | +6,635+82,937.5% | Added |
| Integrated Wealth Concepts LLC | 10,100 | $40.9K | 0.00% | −4,500−30.8% | Reduced |
| Advisor Group Holdings, Inc. | 10,400 | $42.1K | 0.00% | +10,000+2,500.0% | Added |
| Chicago Partners Investment Group LLC | 13,958 | $44.1K | 0.00% | −4,357−23.8% | Reduced |
| CTC Alternative Strategies, Ltd. | 11,100 | $45.0K | 0.03% | +11,100 | New |
| LMR Partners LLP | 11,503 | $46.6K | 0.00% | +11,503 | New |
| Algert Global LLC | 12,410 | $50.3K | 0.00% | +12,410 | New |
| SG Americas Securities, LLC | 12,856 | $52.0K | 0.00% | +12,856 | New |
| Stifel Financial Corp | 14,650 | $59.3K | 0.00% | −1,500−9.3% | Reduced |
| Pinnacle Associates Ltd | 18,020 | $73.0K | 0.00% | +18,020 | New |
| Pinnacle Wealth Management Advisory Group, LLC | 18,020 | $73.0K | 0.01% | +18,020 | New |
| Jefferies Financial Group Inc. | 19,000 | $77.0K | 0.00% | +19,000 | New |
| Susquehanna Portfolio Strategies, LLC | 21,903 | $88.7K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 23,351 | $94.6K | 0.00% | −107,765−82.2% | Reduced |
| Omers Administration Corp | 23,800 | $96.4K | 0.00% | +23,800 | New |
| Jump Financial, LLC | 23,951 | $97.0K | 0.00% | −79,049−76.7% | Reduced |
| Gsa Capital Partners LLP | 25,370 | $103.0K | 0.01% | +25,370 | New |
| ExodusPoint Capital Management, LP | 25,620 | $104.0K | 0.00% | −6,636−20.6% | Reduced |
| Point72 Asia (Singapore) Pte. Ltd. | 27,556 | $111.6K | 0.03% | +25,556+1,277.8% | Added |
| Group One Trading, L.P. | 28,037 | $113.5K | 0.00% | +20,494+271.7% | Added |
| Intrepid Financial Planning Group LLC | 30,150 | $122.1K | 0.05% | 00.0% | Unchanged |
| Bank of Montreal | 31,900 | $131.7K | 0.00% | +31,900 | New |
| American Century Companies Inc | 34,604 | $140.1K | 0.00% | +9,876+39.9% | Added |
| Prelude Capital Management, LLC | 37,000 | $149.8K | 0.01% | +7,900+27.1% | Added |
| Y-Intercept (Hong Kong) Ltd | 37,191 | $150.6K | 0.01% | +17,843+92.2% | Added |
| Barclays PLC | 47,310 | $191.6K | 0.00% | −37−0.1% | Reduced |
| Morgan Stanley | 48,712 | $197.3K | 0.00% | +25,586+110.6% | Added |
| Boothbay Fund Management, LLC | 51,708 | $209.4K | 0.01% | −30,474−37.1% | Reduced |
| Brevan Howard Capital Management LP | 56,369 | $228.3K | 0.02% | +56,369 | New |
| Northern Trust Corp | 56,773 | $229.9K | 0.00% | +95+0.2% | Added |
| Marathon Trading Investment Management LLC | 60,000 | $243.0K | 0.10% | +60,000 | New |
| Manufacturers Life Insurance Company, The | 60,041 | $243.2K | 0.00% | +60,041 | New |
| Dimensional Fund Advisors LP | 61,728 | $250.0K | 0.00% | +5,937+10.6% | Added |
| Susquehanna Fundamental Investments, LLC | 62,518 | $253.2K | 0.01% | +62,518 | New |
| Balyasny Asset Management LLC | 63,949 | $259.0K | 0.00% | +43,371+210.8% | Added |
| JPMorgan Chase & Co | 71,890 | $291.2K | 0.00% | +37,945+111.8% | Added |
| Catalyst Financial Partners LLC | 89,699 | $311.3K | 0.08% | 00.0% | Unchanged |
| Bank of America Corp | 80,616 | $326.5K | 0.00% | −23,753−22.8% | Reduced |
| State Street Corp | 81,778 | $331.2K | 0.00% | −3,300−3.9% | Reduced |
| Marshall Wace, LLP | 89,707 | $363.3K | 0.00% | +89,707 | New |
| New York Life Investment Management LLC | 95,089 | $385.1K | 0.00% | +95,089 | New |
| HRT Financial LP | 105,117 | $425.0K | 0.00% | +105,117 | New |
| Wellington Management Group LLP | 112,258 | $454.6K | 0.00% | +112,258 | New |
| Squarepoint Ops LLC | 113,232 | $458.6K | 0.00% | +60,403+114.3% | Added |
| Citigroup Inc | 135,394 | $548.3K | 0.00% | −12,417−8.4% | Reduced |
| Bridgeway Capital Management, LLC | 148,400 | $601.0K | 0.01% | +148,400 | New |
| TD Asset Management Inc | 148,800 | $602.6K | 0.00% | +148,800 | New |
| Qube Research & Technologies Ltd | 167,588 | $678.7K | 0.00% | +78,962+89.1% | Added |
| Two Sigma Investments, LP | 177,901 | $720.5K | 0.00% | −66,515−27.2% | Reduced |
| Man Group plc | 187,585 | $759.7K | 0.00% | +42,955+29.7% | Added |
| BlackRock Inc. | 189,697 | $768.3K | 0.00% | −58,398−23.5% | Reduced |
| Two Sigma Advisers, LP | 217,000 | $878.9K | 0.00% | +87,300+67.3% | Added |
| Tang Capital Management LLC | 246,895 | $999.9K | 0.10% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 265,843 | $1.08M | 0.00% | −233,951−46.8% | Reduced |
| Ikarian Capital, LLC | 266,435 | $1.08M | 0.29% | −48,830−15.5% | Reduced |
| Geode Capital Management, LLC | 285,139 | $1.16M | 0.00% | +20,536+7.8% | Added |
| Goldman Sachs Group Inc | 317,904 | $1.29M | 0.00% | +203,172+177.1% | Added |
| Schonfeld Strategic Advisors LLC | 458,484 | $1.86M | 0.01% | −103,058−18.4% | Reduced |
| Pathstone Holdings, LLC | 480,181 | $1.94M | 0.01% | +1,032+0.2% | Added |
| Hudson Bay Capital Management LP | 560,000 | $2.27M | 0.02% | −4,400−0.8% | Reduced |
| Parkman Healthcare Partners LLC | 576,657 | $2.34M | 0.29% | −26,840−4.4% | Reduced |
| Jane Street Group, LLC | 600,255 | $2.43M | 0.00% | −4,365−0.7% | Reduced |
| Alyeska Investment Group, L.P. | 939,603 | $3.81M | 0.02% | +206,400+28.2% | Added |
| Price T Rowe Associates Inc | 1,098,276 | $4.45M | 0.00% | +1,098,276 | New |
| Knollwood Investment Advisory, LLC | 1,628,510 | $6.60M | 1.19% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,665,058 | $6.74M | 0.00% | −174,494−9.5% | Reduced |
| Laurion Capital Management LP | 1,895,023 | $7.67M | 0.21% | 00.0% | Unchanged |
| FMR LLC | 2,089,000 | $8.46M | 0.00% | +2,089,000 | New |
| Rock Springs Capital Management LP | 2,300,059 | $9.32M | 0.24% | 00.0% | Unchanged |
| Millennium Management LLC | 2,629,541 | $10.6M | 0.01% | +1,134,257+75.9% | Added |
| Franklin Resources Inc | 3,395,418 | $13.8M | 0.00% | +36,609+1.1% | Added |
| Sands Capital Ventures, LLC | 3,417,075 | $13.8M | 3.34% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 14,932,063 | $60.5M | 0.77% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −138,029−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −91,496−100.0% | Sold out |
| 683 Capital Management, LLC | 0 | $0 | 0.00% | −78,431−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −40,000−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −23,787−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −21,422−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −16,929−100.0% | Sold out |
| Global Retirement Partners, LLC | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Cutler Group LP | 0 | $0 | 0.00% | −1,200−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0 | $0 | 0.00% | −413−100.0% | Sold out |