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 2025
Institutional positions in Acumen Pharmaceuticals, Inc. as of Mar 31, 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
- 81
- +2 vs. Q4 2024
- Shares held
- 40.3M
- −2.19M (−5.1%) vs. Q4 2024
- Total value
- $44.8M
- −$28.2M (−38.6%) vs. Q4 2024
- New holders
- 11
- 15 more added
- Sold out
- 9
- 33 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2025
Shares, value and share of portfolio for each institution holding Acumen Pharmaceuticals, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| True Wealth Design, LLC | 29 | $32 | 0.00% | +29 | New |
| Russell Investments Group, Ltd. | 278 | $306 | 0.00% | −959−77.5% | Reduced |
| Coldstream Capital Management Inc | 311 | $343 | 0.00% | +311 | New |
| Rise Advisors, LLC | 373 | $410 | 0.00% | +373 | New |
| EverSource Wealth Advisors, LLC | 486 | $535 | 0.00% | +486 | New |
| SBI Securities Co., Ltd. | 513 | $564 | 0.00% | +73+16.6% | Added |
| N.E.W. Advisory Services LLC | 598 | $658 | 0.00% | +598 | New |
| Sterling Capital Management LLC | 685 | $754 | 0.00% | −740−51.9% | Reduced |
| Federation des caisses Desjardins du Quebec | 1,500 | $1.65K | 0.00% | 00.0% | Unchanged |
| Meeder Asset Management Inc | 1,584 | $1.74K | 0.00% | +1,584 | New |
| Amalgamated Bank | 1,451 | $2.00K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 2,343 | $2.00K | 0.00% | +1,152+96.7% | Added |
| Group One Trading, L.P. | 2,411 | $2.65K | 0.00% | −26,437−91.6% | Reduced |
| California State Teachers Retirement System | 3,039 | $3.34K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 3,167 | $3.48K | 0.00% | −3,850−54.9% | Reduced |
| Legal & General Group Plc | 3,635 | $4.00K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 4,110 | $4.52K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 4,446 | $4.89K | 0.00% | +4,446 | New |
| CWM, LLC | 4,137 | $5.00K | 0.00% | +3,908+1,706.6% | Added |
| Advisor Group Holdings, Inc. | 5,000 | $5.50K | 0.00% | −10,400−67.5% | Reduced |
| Royal Bank of Canada | 8,540 | $9.00K | 0.00% | −6,121−41.8% | Reduced |
| Tower Research Capital LLC (TRC) | 8,441 | $9.29K | 0.00% | −12,183−59.1% | Reduced |
| New York State Common Retirement Fund | 9,800 | $10.8K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 10,804 | $11.9K | 0.00% | −19,936−64.9% | Reduced |
| Squarepoint Ops LLC | 11,189 | $12.3K | 0.00% | −626−5.3% | Reduced |
| Two Sigma Securities, LLC | 11,879 | $13.1K | 0.00% | +11,879 | New |
| Price T Rowe Associates Inc | 13,616 | $15.0K | 0.00% | 00.0% | Unchanged |
| Integrated Wealth Concepts LLC | 15,219 | $16.7K | 0.00% | +5,119+50.7% | Added |
| Thoroughbred Financial Services, LLC | 15,500 | $17.0K | 0.00% | +15,500 | New |
| Clune & Associates, Ltd. | 16,500 | $18.1K | 0.01% | 00.0% | Unchanged |
| Pinnacle Associates Ltd | 18,020 | $19.8K | 0.00% | 00.0% | Unchanged |
| Pinnacle Wealth Management Advisory Group, LLC | 18,020 | $19.8K | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 18,007 | $20.0K | 0.00% | −7,624−29.7% | Reduced |
| Corebridge Financial, Inc. | 20,550 | $22.6K | 0.00% | −305−1.5% | Reduced |
| SEI Investments Co | 21,782 | $24.0K | 0.00% | 00.0% | Unchanged |
| JustInvest LLC | 22,006 | $24.2K | 0.00% | +9,112+70.7% | Added |
| Qube Research & Technologies Ltd | 22,135 | $24.3K | 0.00% | −46,186−67.6% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 25,171 | $27.7K | 0.00% | +1,092+4.5% | Added |
| Wells Fargo & Company | 27,678 | $30.4K | 0.00% | +1,559+6.0% | Added |
| Intech Investment Management LLC | 28,540 | $31.4K | 0.00% | +9,693+51.4% | Added |
| Citigroup Inc | 29,836 | $32.8K | 0.00% | −50,509−62.9% | Reduced |
| Intrepid Financial Planning Group LLC | 30,150 | $33.2K | 0.02% | 00.0% | Unchanged |
| Marex Group plc | 33,300 | $36.6K | 0.00% | 00.0% | Unchanged |
| AQR Capital Management LLC | 41,735 | $45.9K | 0.00% | +41,735 | New |
| Dimensional Fund Advisors LP | 43,524 | $47.9K | 0.00% | −54,492−55.6% | Reduced |
| Rhumbline Advisers | 45,516 | $50.1K | 0.00% | −7,560−14.2% | Reduced |
| Boothbay Fund Management, LLC | 51,042 | $56.1K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 72,265 | $79.5K | 0.00% | −20,817−22.4% | Reduced |
| Nuveen, LLC | 78,446 | $86.3K | 0.00% | +78,446 | New |
| Catalyst Financial Partners LLC | 89,699 | $98.7K | 0.02% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 90,258 | $99.3K | 0.00% | −2,725−2.9% | Reduced |
| Deutsche Bank AG | 96,995 | $106.7K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 110,976 | $122.1K | 0.00% | +35,088+46.2% | Added |
| Bridgeway Capital Management, LLC | 115,171 | $126.7K | 0.00% | −18,829−14.1% | Reduced |
| Charles Schwab Investment Management Inc | 116,902 | $128.6K | 0.00% | −9,845−7.8% | Reduced |
| UBS Group AG | 123,015 | $135.3K | 0.00% | −18,477−13.1% | Reduced |
| Invesco Ltd. | 127,798 | $140.6K | 0.00% | +107,956+544.1% | Added |
| ADAR1 Capital Management, LLC | 146,183 | $160.8K | 0.03% | +51,889+55.0% | Added |
| Morgan Stanley | 152,636 | $167.9K | 0.00% | −113,580−42.7% | Reduced |
| Bank of America Corp | 158,934 | $174.8K | 0.00% | +10,266+6.9% | Added |
| Goldman Sachs Group Inc | 196,207 | $215.8K | 0.00% | −22,937−10.5% | Reduced |
| Two Sigma Investments, LP | 232,293 | $255.5K | 0.00% | −68,975−22.9% | Reduced |
| Renaissance Technologies LLC | 256,700 | $282.4K | 0.00% | −513−0.2% | Reduced |
| Ikarian Capital, LLC | 265,769 | $292.3K | 0.10% | 00.0% | Unchanged |
| Northern Trust Corp | 289,836 | $318.8K | 0.00% | −17,779−5.8% | Reduced |
| Two Sigma Advisers, LP | 463,700 | $510.1K | 0.00% | −35,400−7.1% | Reduced |
| State Street Corp | 521,206 | $573.3K | 0.00% | −4,600−0.9% | Reduced |
| Hudson Bay Capital Management LP | 770,000 | $847.0K | 0.01% | +55,000+7.7% | Added |
| Geode Capital Management, LLC | 861,899 | $948.2K | 0.00% | −8,656−1.0% | Reduced |
| Laurion Capital Management LP | 867,046 | $953.8K | 0.07% | 00.0% | Unchanged |
| Alyeska Investment Group, L.P. | 939,603 | $1.03M | 0.00% | 00.0% | Unchanged |
| Pathstone Holdings, LLC | 1,086,531 | $1.20M | 0.01% | +479,686+79.0% | Added |
| Millennium Management LLC | 1,135,222 | $1.25M | 0.00% | −209,523−15.6% | Reduced |
| JPMorgan Chase & Co | 832,267 | $1.46M | 0.00% | −105,641−11.3% | Reduced |
| Knollwood Investment Advisory, LLC | 1,628,510 | $1.79M | 0.20% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,936,991 | $2.13M | 0.00% | −3,780−0.2% | Reduced |
| FMR LLC | 2,025,623 | $2.23M | 0.00% | +1,863+0.1% | Added |
| BlackRock, Inc. | 2,331,049 | $2.56M | 0.00% | −40,998−1.7% | Reduced |
| Franklin Resources Inc | 3,141,939 | $3.46M | 0.00% | −131,694−4.0% | Reduced |
| Sands Capital Ventures, LLC | 3,417,075 | $3.76M | 0.92% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 14,932,063 | $16.4M | 0.27% | 00.0% | Unchanged |
| Rock Springs Capital Management LP | 0 | $0 | 0.00% | −1,838,916−100.0% | Sold out |
| American Century Companies Inc | 0 | $0 | 0.00% | −54,278−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −48,414−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −33,678−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −19,445−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −14,731−100.0% | Sold out |
| ProShare Advisors LLC | 0 | $0 | 0.00% | −11,812−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −9,597−100.0% | Sold out |
| Nisa Investment Advisors, LLC | 0 | $0 | 0.00% | −356−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |