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, Q3 2021
Institutional positions in Acumen Pharmaceuticals, Inc. as of Sep 30, 2021. 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
- 41
- +41 vs. Q2 2021
- Shares held
- 24.1M
- +24.1M vs. Q2 2021
- Total value
- $357.4M
- +$357.4M vs. Q2 2021
- New holders
- 41
- 0 more added
- Sold out
- 0
- 0 more reduced
Compare with Q2 2021: 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, Q3 2021
Shares, value and share of portfolio for each institution holding Acumen Pharmaceuticals, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wells Fargo & Company | 51 | $1.00K | 0.00% | +51 | New |
| Captrust Financial Advisors | 78 | $1.00K | 0.00% | +78 | New |
| Morgan Stanley | 569 | $8.00K | 0.00% | +569 | New |
| UBS Group AG | 610 | $9.00K | 0.00% | +610 | New |
| Tower Research Capital LLC (TRC) | 695 | $10.0K | 0.00% | +695 | New |
| Ameritas Investment Partners, Inc. | 735 | $11.0K | 0.00% | +735 | New |
| Legal & General Group Plc | 888 | $13.0K | 0.00% | +888 | New |
| Bank of America Corp | 990 | $14.0K | 0.00% | +990 | New |
| Citigroup Inc | 1,094 | $16.0K | 0.00% | +1,094 | New |
| Royal Bank of Canada | 1,101 | $16.0K | 0.00% | +1,101 | New |
| STRS Ohio | 2,200 | $32.0K | 0.00% | +2,200 | New |
| JPMorgan Chase & Co | 3,672 | $55.0K | 0.00% | +3,672 | New |
| California State Teachers Retirement System | 5,180 | $77.0K | 0.00% | +5,180 | New |
| American International Group, Inc. | 5,247 | $78.0K | 0.00% | +5,247 | New |
| Deutsche Bank AG | 5,518 | $82.0K | 0.00% | +5,518 | New |
| Nuveen Asset Management, LLC | 12,922 | $192.0K | 0.00% | +12,922 | New |
| Chicago Partners Investment Group LLC | 14,804 | $199.0K | 0.01% | +14,804 | New |
| Bank of New York Mellon Corp | 17,945 | $266.0K | 0.00% | +17,945 | New |
| D. E. Shaw & Co., Inc. | 18,314 | $272.0K | 0.00% | +18,314 | New |
| Charles Schwab Investment Management Inc | 24,037 | $358.0K | 0.00% | +24,037 | New |
| Citadel Advisors LLC | 39,346 | $585.0K | 0.00% | +39,346 | New |
| Goldman Sachs Group Inc | 63,635 | $946.0K | 0.00% | +63,635 | New |
| Pura Vida Investments, LLC | 75,000 | $1.11M | 0.08% | +75,000 | New |
| Northern Trust Corp | 87,401 | $1.30M | 0.00% | +87,401 | New |
| State Street Corp | 99,775 | $1.48M | 0.00% | +99,775 | New |
| FMR LLC | 107,100 | $1.59M | 0.00% | +107,100 | New |
| Geode Capital Management, LLC | 107,806 | $1.60M | 0.00% | +107,806 | New |
| Marshall Wace North America L.P. | 153,908 | $2.29M | 0.01% | +153,908 | New |
| Marshall Wace, LLP | 156,250 | $2.32M | 0.01% | +156,250 | New |
| BVF Inc | 289,663 | $4.30M | 0.17% | +289,663 | New |
| Moore Capital Management, LP | 369,583 | $5.49M | 0.11% | +369,583 | New |
| Woodline Partners LP | 468,794 | $6.97M | 0.12% | +468,794 | New |
| Guardian Point Capital, LP | 500,000 | $7.43M | 1.72% | +500,000 | New |
| Laurion Capital Management LP | 656,848 | $9.76M | 0.14% | +656,848 | New |
| Janus Henderson Group PLC | 860,181 | $12.8M | 0.01% | +860,181 | New |
| Franklin Resources Inc | 937,500 | $13.9M | 0.01% | +937,500 | New |
| Vanguard Group Inc | 1,324,898 | $19.7M | 0.00% | +1,324,898 | New |
| Rock Springs Capital Management LP | 1,579,191 | $23.5M | 0.49% | +1,579,191 | New |
| BlackRock Inc. | 2,868,791 | $42.6M | 0.00% | +2,868,791 | New |
| Sands Capital Ventures, LLC | 3,417,075 | $50.8M | 7.66% | +3,417,075 | New |
| Ra Capital Management, L.P. | 9,770,773 | $145.2M | 2.01% | +9,770,773 | New |