Acumen PharmaceuticalsABOS
13F holders, Q3 2024 (September 30)73holders −8
9new positions
17sold out
3famous investors
$2.47avg. 13F price*
At the end of Q3 2024, 73 institutions reported holding Acumen Pharmaceuticals Inc. (ABOS) in their 13F filings, down 8 from Q2 2024. 9 opened new positions and 17 sold out. The largest holders were Ra Capital Management, L.P. ($37.0M), Sands Capital Alternatives, LLC ($8.5M) and Franklin Resources Inc. ($8.3M). 3 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Acumen Pharmaceuticals Inc.
- CUSIP
- 00509G209
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 9 | $238K |
| Exits | 17 | $1.1M |
All 13F filers, Q2 2024 → Q3 2024: 1,327,546 shares bought and 1,413,893 shares sold, net −86,347 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 73 holders
| Ra Capital Management, L.P. | 0.43% | No change | 14,932,063 | $37.0M |
| Sands Capital Alternatives, LLC | 2.38% | No change | 3,417,075 | $8.5M |
| Franklin Resources Inc. | 0.00% | Add +5.4% | 3,549,069 | $8.3M |
| BlackRock, Inc. | 0.00% | — | 2,331,530 | $5.8M |
| Rock Springs Capital Management LP | 0.19% | No change | 2,300,059 | $5.7M |
| FMR LLC | 0.00% | Add +0.3% | 2,028,117 | $5.0M |
| Vanguard Group Inc. | 0.00% | Add +2.0% | 1,934,039 | $4.8M |
| Millennium Management | 0.00% | Reduce -6.1% | 1,834,753 | $4.6M |
| Knollwood Investment Advisory, LLC | 0.43% | No change | 1,628,510 | $4.0M |
| Alyeska Investment Group, L.P. | 0.01% | No change | 939,603 | $2.3M |
| Laurion Capital Management LP | 0.14% | Reduce -26.4% | 867,046 | $2.2M |
| Geode Capital Management, LLC | 0.00% | Add +6.5% | 864,528 | $2.1M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -18.8% | 849,619 | $2.1M |
| Hudson Bay Capital Management LP | 0.01% | Reduce -5.1% | 636,000 | $1.6M |
| Pathstone Holdings, LLC | 0.01% | Add +7.7% | 517,283 | $1.3M |
| State Street Corp. | 0.00% | Add +18.3% | 516,406 | $1.3M |
| Jane Street Group, LLC | 0.00% | Add +14.0% | 487,596 | $1.2M |
| Two Sigma Advisers, LP | 0.00% | Add +19.6% | 469,100 | $1.2M |
| Two Sigma Investments, LP | 0.00% | Reduce -0.4% | 309,507 | $768K |
| Northern Trust Corp. | 0.00% | Add +340.7% | 308,850 | $766K |
| Renaissance Technologies | 0.00% | Reduce -9.5% | 306,100 | $759K |
| Ikarian Capital, LLC | 0.21% | No change | 266,435 | $661K |
| Morgan Stanley | 0.00% | Add +172.4% | 239,200 | $593K |
| Goldman Sachs Group Inc. | 0.00% | Add +185.7% | 145,861 | $362K |
| TD Asset Management Inc | 0.00% | Reduce -6.5% | 139,206 | $345K |
| Bank of America Corp. | 0.00% | Add +13.0% | 138,724 | $344K |
| Bridgeway Capital Management, LLC | 0.01% | Reduce -7.4% | 137,400 | $341K |
| Group One Trading LLC | 0.01% | Reduce -1.9% | 122,589 | $304K |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 108,743 | $270K |
| Bank of New York Mellon Corp | 0.00% | Reduce -26.4% | 92,983 | $231K |
| Catalyst Financial Partners LLC | 0.04% | No change | 89,699 | $222K |
| Rhumbline Advisers | 0.00% | Add +69.1% | 88,484 | $219K |
| Qube Research & Technologies Ltd | 0.00% | Add +9.0% | 82,702 | $205K |
| Nuveen Asset Management, LLC | 0.00% | Add +38.4% | 78,446 | $195K |
| JPMorgan Chase & Co. | 0.00% | Add +252.8% | 63,066 | $156K |
| Barclays PLC | 0.00% | Add +189.1% | 61,997 | $154K |
| Dimensional Fund Advisors LP | 0.00% | Add +0.0% | 56,556 | $140K |
| American Century Companies Inc. | 0.00% | Add +20.0% | 54,543 | $135K |
| Susquehanna International Group, LLP | 0.00% | Reduce -0.1% | 54,019 | $134K |
| Prelude Capital Management, LLC | 0.01% | Add +12.9% | 52,417 | $130K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -12.8% | 52,333 | $130K |
| Boothbay Fund Management, LLC | 0.00% | Reduce -39.5% | 51,708 | $128K |
| Citigroup Inc. | 0.00% | Add +224.9% | 30,592 | $76K |
| Intrepid Financial Planning Group LLC | 0.03% | No change | 30,150 | $75K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | New | 23,015 | $57K |
| UBS Group AG | 0.00% | Add +77.9% | 22,751 | $56K |
| Corebridge Financial, Inc. | 0.00% | Reduce -0.6% | 22,429 | $56K |
| Virtu Financial LLC | 0.00% | Reduce -8.8% | 22,255 | $55K |
| Susquehanna Portfolio Strategies, LLC | 0.00% | No change | 21,903 | $54K |
| Sei Investments Co. | 0.00% | New | 21,782 | $54K |
| Wells Fargo & Company | 0.00% | Add +4.0% | 21,258 | $53K |
| Jump Financial, LLC | 0.00% | Reduce -57.1% | 21,200 | $53K |
| Acadian Asset Management LLC | 0.00% | New | 18,643 | $46K |
| Invesco Ltd. | 0.00% | Reduce -4.2% | 18,189 | $45K |
| Pinnacle Wealth Management Advisory Group, LLC | 0.00% | No change | 18,020 | $45K |
| SG Americas Securities, LLC | 0.00% | New | 17,772 | $44K |
| Deutsche Bank AG | 0.00% | Reduce -49.3% | 17,055 | $42K |
| Citadel Advisors | 0.00% | Reduce -79.6% | 16,912 | $42K |
| Fortitude Advisory Group L.L.C. | 0.02% | New | 13,300 | $33K |
| Osaic Holdings, Inc. | 0.00% | No change | 10,400 | $26K |
| New York State Common Retirement Fund | 0.00% | Reduce -76.9% | 9,800 | $24K |
| Royal Bank of Canada | 0.00% | Add +46.9% | 5,941 | $15K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 4,110 | $10K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -85.2% | 3,910 | $10K |
| Legal & General Group Plc | 0.00% | No change | 3,635 | $9K |
| California State Teachers Retirement System | 0.00% | No change | 3,039 | $8K |
| Amalgamated Bank | 0.00% | No change | 1,451 | $4K |
| Federation des caisses Desjardins du Quebec | 0.00% | New | 1,500 | $4K |
| Sterling Capital Management LLC | 0.00% | — | 133 | $330 |
| Nisa Investment Advisors, LLC | 0.00% | New | 100 | $248 |
| Earned Wealth Advisors, LLC | 0.00% | New | 52 | $129 |
| Planning Capital Management Corp | 0.00% | No change | 5 | $13 |
| Cwm, LLC | 0.00% | New | 168 | $0 |
"% of holder's portfolio" is ABOS's weight in each manager's 13F, not the share of Acumen Pharmaceuticals Inc. the manager owns.