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, Q2 2025
Institutional positions in Acumen Pharmaceuticals, Inc. as of Jun 30, 2025. 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
- 71
- −10 vs. Q1 2025
- Shares held
- 37.6M
- −2.65M (−6.6%) vs. Q1 2025
- Total value
- $43.6M
- −$1.20M (−2.7%) vs. Q1 2025
- New holders
- 17
- 15 more added
- Sold out
- 27
- 22 more reduced
Compare with Q1 2025: 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 | $107.8M |
| Q2 2024 | 81 | $105.5M |
| Q1 2024 | 80 | $176.3M |
| Q4 2023 | 67 | $147.8M |
| Q3 2023 | 66 | $181.4M |
| Q2 2023 | 53 | $126.6M |
| Q1 2023 | 62 | $114.0M |
| Q4 2022 | 60 | $158.0M |
| Q3 2022 | 50 | $278.4M |
| 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, Q2 2025
Shares, value and share of portfolio for each institution holding Acumen Pharmaceuticals, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 14,932,063 | $17.3M | 0.29% | 00.0% | Unchanged |
| Sands Capital Ventures, LLC | 3,417,075 | $3.96M | 0.78% | 00.0% | Unchanged |
| Franklin Resources Inc | 3,077,039 | $3.57M | 0.00% | −64,900−2.1% | Reduced |
| FMR LLC | 2,029,736 | $2.35M | 0.00% | +4,113+0.2% | Added |
| Millennium Management LLC | 1,950,120 | $2.26M | 0.00% | +814,898+71.8% | Added |
| Vanguard Group Inc | 1,689,351 | $1.96M | 0.00% | −247,640−12.8% | Reduced |
| Knollwood Investment Advisory, LLC | 1,628,510 | $1.89M | 0.18% | 00.0% | Unchanged |
| Pathstone Holdings, LLC | 1,058,531 | $1.23M | 0.00% | −28,000−2.6% | Reduced |
| Alyeska Investment Group, L.P. | 939,603 | $1.09M | 0.00% | 00.0% | Unchanged |
| ADAR1 Capital Management, LLC | 916,183 | $1.06M | 0.17% | +770,000+526.7% | Added |
| Laurion Capital Management LP | 867,046 | $1.01M | 0.12% | 00.0% | Unchanged |
| Hudson Bay Capital Management LP | 825,004 | $957.0K | 0.01% | +55,004+7.1% | Added |
| Two Sigma Advisers, LP | 426,300 | $494.5K | 0.00% | −37,400−8.1% | Reduced |
| Geode Capital Management, LLC | 396,626 | $460.2K | 0.00% | −465,273−54.0% | Reduced |
| Goldman Sachs Group Inc | 334,683 | $388.2K | 0.00% | +138,476+70.6% | Added |
| BlackRock, Inc. | 291,957 | $338.7K | 0.00% | −2,039,092−87.5% | Reduced |
| Ikarian Capital, LLC | 265,769 | $308.3K | 0.10% | 00.0% | Unchanged |
| Y-Intercept (Hong Kong) Ltd | 250,848 | $291.0K | 0.01% | +250,848 | New |
| Renaissance Technologies LLC | 246,588 | $286.0K | 0.00% | −10,112−3.9% | Reduced |
| Two Sigma Investments, LP | 200,785 | $232.9K | 0.00% | −31,508−13.6% | Reduced |
| Jane Street Group, LLC | 175,670 | $203.8K | 0.00% | +164,866+1,526.0% | Added |
| Morgan Stanley | 153,748 | $178.3K | 0.00% | +1,112+0.7% | Added |
| Susquehanna International Group, LLP | 152,338 | $176.7K | 0.00% | +41,362+37.3% | Added |
| Bank of America Corp | 147,009 | $170.5K | 0.00% | −11,925−7.5% | Reduced |
| Marshall Wace, LLP | 137,943 | $160.0K | 0.00% | +137,943 | New |
| Bridgeway Capital Management, LLC | 115,171 | $133.6K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 106,678 | $123.7K | 0.00% | −414,528−79.5% | Reduced |
| UBS Group AG | 94,422 | $109.5K | 0.00% | −28,593−23.2% | Reduced |
| Catalyst Financial Partners LLC | 89,699 | $104.1K | 0.01% | 00.0% | Unchanged |
| Northern Trust Corp | 65,162 | $75.6K | 0.00% | −224,674−77.5% | Reduced |
| Qube Research & Technologies Ltd | 57,559 | $66.8K | 0.00% | +35,424+160.0% | Added |
| Boothbay Fund Management, LLC | 51,042 | $59.2K | 0.00% | 00.0% | Unchanged |
| AQR Capital Management LLC | 46,292 | $53.7K | 0.00% | +4,557+10.9% | Added |
| Dimensional Fund Advisors LP | 43,524 | $50.5K | 0.00% | 00.0% | Unchanged |
| Jain Global LLC | 39,990 | $46.4K | 0.00% | +39,990 | New |
| Marex Group plc | 33,300 | $38.6K | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 32,103 | $37.0K | 0.00% | +32,103 | New |
| HRT Financial LP | 31,427 | $36.0K | 0.00% | +31,427 | New |
| Intrepid Financial Planning Group LLC | 30,150 | $35.0K | 0.01% | 00.0% | Unchanged |
| Barclays PLC | 29,991 | $34.8K | 0.00% | −42,274−58.5% | Reduced |
| JPMorgan Chase & Co | 16,675 | $29.2K | 0.00% | −815,592−98.0% | Reduced |
| Point72 Asia (Singapore) Pte. Ltd. | 21,340 | $24.8K | 0.00% | +21,340 | New |
| Two Sigma Securities, LLC | 20,066 | $23.3K | 0.00% | +8,187+68.9% | Added |
| Catalyst Funds Management Pty Ltd | 19,700 | $22.9K | 0.01% | +19,700 | New |
| Pinnacle Associates Ltd | 18,020 | $20.9K | 0.00% | 00.0% | Unchanged |
| Pinnacle Wealth Management Advisory Group, LLC | 18,020 | $20.9K | 0.00% | 00.0% | Unchanged |
| Clune & Associates, Ltd. | 16,500 | $19.1K | 0.01% | 00.0% | Unchanged |
| Schonfeld Strategic Advisors LLC | 15,929 | $18.5K | 0.00% | +15,929 | New |
| Savant Capital, LLC | 11,045 | $12.8K | 0.00% | +11,045 | New |
| DRW Securities, LLC | 11,018 | $12.8K | 0.00% | +11,018 | New |
| Ethic Inc. | 11,377 | $12.7K | 0.00% | +11,377 | New |
| Integrated Wealth Concepts LLC | 10,426 | $12.1K | 0.00% | −4,793−31.5% | Reduced |
| Group One Trading, L.P. | 8,524 | $9.89K | 0.00% | +6,113+253.5% | Added |
| Advisor Group Holdings, Inc. | 7,251 | $8.41K | 0.00% | +2,251+45.0% | Added |
| Wells Fargo & Company | 6,825 | $7.92K | 0.00% | −20,853−75.3% | Reduced |
| The PNC Financial Services Group, Inc. | 4,948 | $5.74K | 0.00% | +502+11.3% | Added |
| CWM, LLC | 4,136 | $5.00K | 0.00% | −10.0% | Reduced |
| Tower Research Capital LLC (TRC) | 3,631 | $4.21K | 0.00% | −4,810−57.0% | Reduced |
| Citigroup Inc | 3,115 | $3.61K | 0.00% | −26,721−89.6% | Reduced |
| BNP Paribas Arbitrage, SA | 2,034 | $2.36K | 0.00% | −1,133−35.8% | Reduced |
| Royal Bank of Canada | 1,938 | $2.00K | 0.00% | −6,602−77.3% | Reduced |
| Federation des caisses Desjardins du Quebec | 1,500 | $1.74K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 1,229 | $1.43K | 0.00% | +1,229 | New |
| Skopos Labs, Inc. | 619 | $719 | 0.00% | +619 | New |
| SBI Securities Co., Ltd. | 513 | $595 | 0.00% | 00.0% | Unchanged |
| Raymond James Financial Inc | 495 | $574 | 0.00% | +495 | New |
| EverSource Wealth Advisors, LLC | 415 | $481 | 0.00% | −71−14.6% | Reduced |
| NBT Bank N A | 200 | $232 | 0.00% | +200 | New |
| Farther Finance Advisors, LLC | 200 | $232 | 0.00% | +200 | New |
| Clearstead Advisors, LLC | 63 | $74 | 0.00% | +63 | New |
| True Wealth Design, LLC | 35 | $41 | 0.00% | +6+20.7% | Added |
| Invesco Ltd. | 0 | $0 | 0.00% | −127,798−100.0% | Sold out |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −116,902−100.0% | Sold out |
| Deutsche Bank AG | 0 | $0 | 0.00% | −96,995−100.0% | Sold out |
| Bank of New York Mellon Corp | 0 | $0 | 0.00% | −90,258−100.0% | Sold out |
| Nuveen, LLC | 0 | $0 | 0.00% | −78,446−100.0% | Sold out |
| Rhumbline Advisers | 0 | $0 | 0.00% | −45,516−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −28,540−100.0% | Sold out |
| Mirae Asset Global ETFs Holdings Ltd. | 0 | $0 | 0.00% | −25,171−100.0% | Sold out |
| JustInvest LLC | 0 | $0 | 0.00% | −22,006−100.0% | Sold out |
| SEI Investments Co | 0 | $0 | 0.00% | −21,782−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −20,550−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −18,007−100.0% | Sold out |
| Thoroughbred Financial Services, LLC | 0 | $0 | 0.00% | −15,500−100.0% | Sold out |
| Price T Rowe Associates Inc | 0 | $0 | 0.00% | −13,616−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −11,189−100.0% | Sold out |
| New York State Common Retirement Fund | 0 | $0 | 0.00% | −9,800−100.0% | Sold out |
| Ameritas Investment Partners, Inc. | 0 | $0 | 0.00% | −4,110−100.0% | Sold out |
| Legal & General Group Plc | 0 | $0 | 0.00% | −3,635−100.0% | Sold out |
| California State Teachers Retirement System | 0 | $0 | 0.00% | −3,039−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −1,451−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −2,343−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −1,584−100.0% | Sold out |
| Sterling Capital Management LLC | 0 | $0 | 0.00% | −685−100.0% | Sold out |
| N.E.W. Advisory Services LLC | 0 | $0 | 0.00% | −598−100.0% | Sold out |
| Rise Advisors, LLC | 0 | $0 | 0.00% | −373−100.0% | Sold out |
| Coldstream Capital Management Inc | 0 | $0 | 0.00% | −311−100.0% | Sold out |
| Russell Investments Group, Ltd. | 0 | $0 | 0.00% | −278−100.0% | Sold out |