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 2024
Institutional positions in Acumen Pharmaceuticals, Inc. as of Dec 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
- +8 vs. Q3 2024
- Shares held
- 42.5M
- −1.07M (−2.5%) vs. Q3 2024
- Total value
- $73.2M
- −$34.5M (−32.1%) vs. Q3 2024
- New holders
- 16
- 28 more added
- Sold out
- 8
- 19 more reduced
1 institution that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: 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, Q4 2024
Shares, value and share of portfolio for each institution holding Acumen Pharmaceuticals, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| CWM, LLC | 229 | $0 | 0.00% | +61+36.3% | Added |
| Nisa Investment Advisors, LLC | 356 | $612 | 0.00% | +256+256.0% | Added |
| SBI Securities Co., Ltd. | 440 | $757 | 0.00% | +440 | New |
| Amalgamated Bank | 1,451 | $2.00K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 1,191 | $2.00K | 0.00% | +1,191 | New |
| Russell Investments Group, Ltd. | 1,237 | $2.13K | 0.00% | +1,237 | New |
| Sterling Capital Management LLC | 1,425 | $2.45K | 0.00% | +1,292+971.4% | Added |
| Federation des caisses Desjardins du Quebec | 1,500 | $2.58K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 3,039 | $5.23K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 3,635 | $6.25K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 4,110 | $7.07K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 7,017 | $12.1K | 0.00% | +7,017 | New |
| Citadel Advisors LLC | 9,597 | $16.5K | 0.00% | −7,315−43.3% | Reduced |
| New York State Common Retirement Fund | 9,800 | $16.9K | 0.00% | 00.0% | Unchanged |
| Integrated Wealth Concepts LLC | 10,100 | $17.4K | 0.00% | +10,100 | New |
| ProShare Advisors LLC | 11,812 | $20.3K | 0.00% | +11,812 | New |
| Squarepoint Ops LLC | 11,815 | $20.3K | 0.00% | +11,815 | New |
| JustInvest LLC | 12,894 | $22.2K | 0.00% | +12,894 | New |
| Price T Rowe Associates Inc | 13,616 | $24.0K | 0.00% | −836,003−98.4% | Reduced |
| Royal Bank of Canada | 14,661 | $25.0K | 0.00% | +8,720+146.8% | Added |
| Susquehanna Fundamental Investments, LLC | 14,731 | $25.3K | 0.00% | +14,731 | New |
| Advisor Group Holdings, Inc. | 15,400 | $26.5K | 0.00% | +5,000+48.1% | Added |
| Clune & Associates, Ltd. | 16,500 | $28.4K | 0.01% | +16,500 | New |
| Pinnacle Wealth Management Advisory Group, LLC | 18,020 | $31.0K | 0.00% | 00.0% | Unchanged |
| Pinnacle Associates Ltd | 18,020 | $31.0K | 0.00% | +18,020 | New |
| Intech Investment Management LLC | 18,847 | $32.4K | 0.00% | +18,847 | New |
| Verition Fund Management LLC | 19,445 | $33.4K | 0.00% | +19,445 | New |
| Invesco Ltd. | 19,842 | $34.1K | 0.00% | +1,653+9.1% | Added |
| Tower Research Capital LLC (TRC) | 20,624 | $35.5K | 0.00% | +16,714+427.5% | Added |
| Corebridge Financial, Inc. | 20,855 | $35.9K | 0.00% | −1,574−7.0% | Reduced |
| SEI Investments Co | 21,782 | $37.5K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 24,079 | $41.4K | 0.00% | +1,064+4.6% | Added |
| SG Americas Securities, LLC | 25,631 | $44.0K | 0.00% | +7,859+44.2% | Added |
| Wells Fargo & Company | 26,119 | $44.9K | 0.00% | +4,861+22.9% | Added |
| Group One Trading, L.P. | 28,848 | $49.6K | 0.00% | −93,741−76.5% | Reduced |
| Intrepid Financial Planning Group LLC | 30,150 | $51.9K | 0.02% | 00.0% | Unchanged |
| Jane Street Group, LLC | 30,740 | $52.9K | 0.00% | −456,856−93.7% | Reduced |
| Marex Group plc | 33,300 | $57.3K | 0.00% | +33,300 | New |
| Atom Investors LP | 33,678 | $57.9K | 0.01% | +33,678 | New |
| Prelude Capital Management, LLC | 48,414 | $83.3K | 0.01% | −4,003−7.6% | Reduced |
| Boothbay Fund Management, LLC | 51,042 | $87.8K | 0.00% | −666−1.3% | Reduced |
| Rhumbline Advisers | 53,076 | $91.3K | 0.00% | −35,408−40.0% | Reduced |
| American Century Companies Inc | 54,278 | $93.4K | 0.00% | −265−0.5% | Reduced |
| Qube Research & Technologies Ltd | 68,321 | $117.5K | 0.00% | −14,381−17.4% | Reduced |
| Susquehanna International Group, LLP | 75,888 | $130.5K | 0.00% | +21,869+40.5% | Added |
| Nuveen Asset Management, LLC | 78,446 | $134.9K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 80,345 | $138.2K | 0.00% | +49,753+162.6% | Added |
| Catalyst Financial Partners LLC | 89,699 | $154.3K | 0.03% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 92,983 | $159.9K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 93,082 | $160.1K | 0.00% | +31,085+50.1% | Added |
| ADAR1 Capital Management, LLC | 94,294 | $162.2K | 0.03% | +94,294 | New |
| Deutsche Bank AG | 96,995 | $166.8K | 0.00% | +79,940+468.7% | Added |
| Dimensional Fund Advisors LP | 98,016 | $168.6K | 0.00% | +41,460+73.3% | Added |
| Charles Schwab Investment Management Inc | 126,747 | $218.0K | 0.00% | +18,004+16.6% | Added |
| Bridgeway Capital Management, LLC | 134,000 | $230.5K | 0.01% | −3,400−2.5% | Reduced |
| UBS Group AG | 141,492 | $243.4K | 0.00% | +118,741+521.9% | Added |
| Bank of America Corp | 148,668 | $255.7K | 0.00% | +9,944+7.2% | Added |
| Goldman Sachs Group Inc | 219,144 | $376.9K | 0.00% | +73,283+50.2% | Added |
| Renaissance Technologies LLC | 257,213 | $442.4K | 0.00% | −48,887−16.0% | Reduced |
| Ikarian Capital, LLC | 265,769 | $457.1K | 0.13% | −666−0.2% | Reduced |
| Morgan Stanley | 266,216 | $457.9K | 0.00% | +27,016+11.3% | Added |
| Two Sigma Investments, LP | 301,268 | $518.2K | 0.00% | −8,239−2.7% | Reduced |
| Northern Trust Corp | 307,615 | $529.1K | 0.00% | −1,235−0.4% | Reduced |
| Two Sigma Advisers, LP | 499,100 | $858.5K | 0.00% | +30,000+6.4% | Added |
| State Street Corp | 525,806 | $904.4K | 0.00% | +9,400+1.8% | Added |
| Pathstone Holdings, LLC | 606,845 | $1.04M | 0.00% | +89,562+17.3% | Added |
| Hudson Bay Capital Management LP | 715,000 | $1.23M | 0.01% | +79,000+12.4% | Added |
| Laurion Capital Management LP | 867,046 | $1.49M | 0.09% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 870,555 | $1.50M | 0.00% | +6,027+0.7% | Added |
| JPMorgan Chase & Co | 937,908 | $1.61M | 0.00% | +874,842+1,387.2% | Added |
| Alyeska Investment Group, L.P. | 939,603 | $1.62M | 0.01% | 00.0% | Unchanged |
| Millennium Management LLC | 1,344,745 | $2.31M | 0.00% | −490,008−26.7% | Reduced |
| Knollwood Investment Advisory, LLC | 1,628,510 | $2.80M | 0.29% | 00.0% | Unchanged |
| Rock Springs Capital Management LP | 1,838,916 | $3.16M | 0.12% | −461,143−20.0% | Reduced |
| Vanguard Group Inc | 1,940,771 | $3.34M | 0.00% | +6,732+0.3% | Added |
| FMR LLC | 2,023,760 | $3.48M | 0.00% | −4,357−0.2% | Reduced |
| BlackRock, Inc. | 2,372,047 | $4.08M | 0.00% | +40,517+1.7% | Added |
| Franklin Resources Inc | 3,273,633 | $5.63M | 0.00% | −275,436−7.8% | Reduced |
| Sands Capital Ventures, LLC | 3,417,075 | $5.88M | 1.28% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 14,932,063 | $25.7M | 0.34% | 00.0% | Unchanged |
| TD Asset Management Inc | 0 | $0 | 0.00% | −139,206−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −52,333−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −22,255−100.0% | Sold out |
| Susquehanna Portfolio Strategies, LLC | 0 | $0 | 0.00% | −21,903−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −21,200−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −18,643−100.0% | Sold out |
| Fortitude Advisory Group L.L.C. | 0 | $0 | 0.00% | −13,300−100.0% | Sold out |
| Capital Performance Advisors LLP | 0 | $0 | 0.00% | −52−100.0% | Sold out |
| Planning Capital Management Corp | – | – | – | – | Not filed |