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 2023
Institutional positions in Acumen Pharmaceuticals, Inc. as of Sep 30, 2023. 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
- 66
- +13 vs. Q2 2023
- Shares held
- 43.2M
- +16.9M (+64.0%) vs. Q2 2023
- Total value
- $179.2M
- +$52.6M (+41.5%) vs. Q2 2023
- New holders
- 25
- 23 more added
- Sold out
- 12
- 11 more reduced
Compare with Q2 2023: 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 2023
Shares, value and share of portfolio for each institution holding Acumen Pharmaceuticals, Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal Bank of Canada | 102 | $0 | 0.00% | −194−65.5% | Reduced |
| UBS Group AG | 100 | $415 | 0.00% | +100 | New |
| Wells Fargo & Company | 194 | $805 | 0.00% | −1,907−90.8% | Reduced |
| Advisor Group Holdings, Inc. | 200 | $830 | 0.00% | +200 | New |
| Citadel Advisors LLC | 232 | $963 | 0.00% | −47,162−99.5% | Reduced |
| Daiwa Securities Group Inc. | 165 | $1.00K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 657 | $2.73K | 0.00% | +180+37.7% | Added |
| Kelly Financial Services LLC | 944 | $3.92K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 1,481 | $6.15K | 0.00% | +943+175.3% | Added |
| Tower Research Capital LLC (TRC) | 2,128 | $8.83K | 0.00% | −1,447−40.5% | Reduced |
| Cutler Group LP | 2,500 | $10.0K | 0.00% | +1,080+76.1% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 3,393 | $14.1K | 0.00% | +3,393 | New |
| Chicago Partners Investment Group LLC | 13,579 | $44.9K | 0.00% | +13,579 | New |
| JPMorgan Chase & Co | 11,025 | $46.0K | 0.00% | +9,750+764.7% | Added |
| Simplex Trading, LLC | 11,448 | $47.0K | 0.00% | +6,902+151.8% | Added |
| Integrated Wealth Concepts LLC | 13,600 | $56.4K | 0.00% | +13,600 | New |
| American Century Companies Inc | 13,816 | $57.3K | 0.00% | +13,816 | New |
| Bank of America Corp | 16,475 | $68.4K | 0.00% | +732+4.6% | Added |
| XTX Topco Ltd | 16,538 | $68.6K | 0.01% | +16,538 | New |
| Jane Street Group, LLC | 16,788 | $69.7K | 0.00% | +16,788 | New |
| Pinnacle Associates Ltd | 18,020 | $74.8K | 0.00% | 00.0% | Unchanged |
| Pinnacle Wealth Management Advisory Group, LLC | 18,020 | $74.8K | 0.01% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 20,088 | $83.4K | 0.00% | +20,088 | New |
| Morgan Stanley | 22,239 | $92.3K | 0.00% | +6,915+45.1% | Added |
| Barclays PLC | 22,425 | $93.1K | 0.00% | −2,969−11.7% | Reduced |
| Verition Fund Management LLC | 23,500 | $97.5K | 0.00% | +23,500 | New |
| Marshall Wace, LLP | 25,492 | $105.8K | 0.00% | +25,492 | New |
| Qube Research & Technologies Ltd | 26,113 | $108.4K | 0.00% | +26,113 | New |
| Intrepid Financial Planning Group LLC | 30,150 | $125.1K | 0.06% | +10,000+49.6% | Added |
| Jump Financial, LLC | 33,900 | $140.7K | 0.01% | +33,900 | New |
| Citigroup Inc | 38,498 | $159.8K | 0.00% | +37,801+5,423.4% | Added |
| Caption Management, LLC | 40,000 | $166.0K | 0.02% | +40,000 | New |
| DekaBank Deutsche Girozentrale | 40,000 | $167.0K | 0.00% | +40,000 | New |
| Northern Trust Corp | 56,190 | $233.2K | 0.00% | +24,096+75.1% | Added |
| Goldman Sachs Group Inc | 57,299 | $237.8K | 0.00% | +43,727+322.2% | Added |
| State Street Corp | 59,778 | $248.1K | 0.00% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 61,185 | $253.9K | 0.01% | −65,921−51.9% | Reduced |
| UBS Oconnor LLC | 69,538 | $288.6K | 0.01% | −10,000−12.6% | Reduced |
| Dimensional Fund Advisors LP | 75,602 | $313.7K | 0.00% | +6,623+9.6% | Added |
| Renaissance Technologies LLC | 87,400 | $363.0K | 0.00% | +42,600+95.1% | Added |
| Catalyst Financial Partners LLC | 89,699 | $372.3K | 0.12% | 00.0% | Unchanged |
| Wellington Management Group LLP | 104,359 | $433.1K | 0.00% | +104,359 | New |
| Bridgeway Capital Management, LLC | 115,033 | $477.4K | 0.01% | −27,800−19.5% | Reduced |
| Two Sigma Investments, LP | 132,351 | $549.3K | 0.00% | +105,716+396.9% | Added |
| Ghost Tree Capital, LLC | 150,000 | $622.5K | 0.30% | +150,000 | New |
| Susquehanna International Group, LLP | 177,779 | $737.8K | 0.00% | +177,779 | New |
| Geode Capital Management, LLC | 264,603 | $1.10M | 0.00% | +97,783+58.6% | Added |
| Ikarian Capital, LLC | 315,265 | $1.31M | 0.49% | −339,680−51.9% | Reduced |
| Pathstone Family Office, LLC | 478,790 | $1.99M | 0.02% | +11,730+2.5% | Added |
| Parkman Healthcare Partners LLC | 499,814 | $2.07M | 0.38% | +499,814 | New |
| Hudson Bay Capital Management LP | 525,000 | $2.18M | 0.02% | +130,000+32.9% | Added |
| BlackRock Inc. | 583,414 | $2.42M | 0.00% | +100,090+20.7% | Added |
| Alyeska Investment Group, L.P. | 613,822 | $2.55M | 0.02% | +613,822 | New |
| Schonfeld Strategic Advisors LLC | 645,112 | $2.68M | 0.02% | +645,112 | New |
| Altium Capital Management LP | 650,000 | $2.70M | 1.56% | +650,000 | New |
| Great Point Partners LLC | 1,074,101 | $4.46M | 0.84% | +22,834+2.2% | Added |
| Knollwood Investment Advisory, LLC | 1,628,510 | $6.76M | 3.16% | −50,000−3.0% | Reduced |
| Millennium Management LLC | 1,716,290 | $7.12M | 0.01% | +570,272+49.8% | Added |
| Vanguard Group Inc | 1,856,552 | $7.70M | 0.00% | +1,121,700+152.6% | Added |
| Laurion Capital Management LP | 1,895,023 | $7.86M | 0.21% | +688,475+57.1% | Added |
| Boxer Capital, LLC | 2,206,983 | $9.16M | 0.49% | +2,206,983 | New |
| Deep Track Capital, LP | 2,513,044 | $10.4M | 0.40% | −1,403,317−35.8% | Reduced |
| Rock Springs Capital Management LP | 2,812,579 | $11.7M | 0.31% | +2,812,579 | New |
| Franklin Resources Inc | 2,838,765 | $11.8M | 0.01% | +2,838,765 | New |
| Sands Capital Ventures, LLC | 3,417,075 | $14.2M | 4.20% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 14,932,063 | $62.0M | 1.22% | +5,161,290+52.8% | Added |
| WMS Partners, LLC | 0 | $0 | 0.00% | −98,301−100.0% | Sold out |
| J. Goldman & Co LP | 0 | $0 | 0.00% | −62,986−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −60,504−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −32,800−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −31,100−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −30,222−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −14,663−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −13,116−100.0% | Sold out |
| Belvedere Trading LLC | 0 | $0 | 0.00% | −12,931−100.0% | Sold out |
| BIT Capital GmbH | 0 | $0 | 0.00% | −11,618−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −10,445−100.0% | Sold out |
| Federation des caisses Desjardins du Quebec | 0 | $0 | 0.00% | −892−100.0% | Sold out |