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 2023
Institutional positions in Acumen Pharmaceuticals, Inc. as of Jun 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
- 53
- −9 vs. Q1 2023
- Shares held
- 26.3M
- −1.73M (−6.2%) vs. Q1 2023
- Total value
- $126.6M
- +$12.6M (+11.1%) vs. Q1 2023
- New holders
- 9
- 13 more added
- Sold out
- 18
- 20 more reduced
Compare with Q1 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 | $107.8M |
| 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 2023
Shares, value and share of portfolio for each institution holding Acumen Pharmaceuticals, Inc.; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 9,770,773 | $47.0M | 0.89% | 00.0% | Unchanged |
| Deep Track Capital, LP | 3,916,361 | $18.8M | 0.88% | −35,639−0.9% | Reduced |
| Sands Capital Ventures, LLC | 3,417,075 | $16.4M | 4.86% | 00.0% | Unchanged |
| Knollwood Investment Advisory, LLC | 1,678,510 | $8.07M | 2.72% | 00.0% | Unchanged |
| Laurion Capital Management LP | 1,206,548 | $5.80M | 0.25% | 00.0% | Unchanged |
| Millennium Management LLC | 1,146,018 | $5.51M | 0.01% | +500,135+77.4% | Added |
| Great Point Partners LLC | 1,051,267 | $5.06M | 1.01% | 00.0% | Unchanged |
| Vanguard Group Inc | 734,852 | $3.53M | 0.00% | +1150.0% | Added |
| Ikarian Capital, LLC | 654,945 | $3.15M | 1.11% | +400,000+156.9% | Added |
| BlackRock Inc. | 483,324 | $2.32M | 0.00% | −188,307−28.0% | Reduced |
| Pathstone Family Office, LLC | 467,060 | $2.25M | 0.03% | +75,000+19.1% | Added |
| Hudson Bay Capital Management LP | 395,000 | $1.90M | 0.02% | −267,668−40.4% | Reduced |
| Geode Capital Management, LLC | 166,820 | $802.4K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 142,833 | $687.0K | 0.02% | +25,000+21.2% | Added |
| Boothbay Fund Management, LLC | 127,106 | $611.4K | 0.02% | +62,580+97.0% | Added |
| WMS Partners, LLC | 98,301 | $472.8K | 0.04% | 00.0% | Unchanged |
| Catalyst Financial Partners LLC | 89,699 | $431.5K | 0.15% | +89,699 | New |
| UBS Oconnor LLC | 79,538 | $382.6K | 0.01% | +18,180+29.6% | Added |
| Dimensional Fund Advisors LP | 68,979 | $331.8K | 0.00% | +2,200+3.3% | Added |
| J. Goldman & Co LP | 62,986 | $303.0K | 0.02% | −72,014−53.3% | Reduced |
| D. E. Shaw & Co., Inc. | 60,504 | $291.0K | 0.00% | −99,704−62.2% | Reduced |
| State Street Corp | 59,778 | $287.5K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 47,394 | $228.0K | 0.00% | +33,313+236.6% | Added |
| Renaissance Technologies LLC | 44,800 | $215.0K | 0.00% | +7,355+19.6% | Added |
| Group One Trading, L.P. | 32,800 | $157.8K | 0.01% | +28,500+662.8% | Added |
| Northern Trust Corp | 32,094 | $154.4K | 0.00% | −64−0.2% | Reduced |
| Prelude Capital Management, LLC | 31,100 | $149.6K | 0.01% | +31,100 | New |
| Balyasny Asset Management LLC | 30,222 | $145.4K | 0.00% | +30,222 | New |
| Two Sigma Investments, LP | 26,635 | $128.1K | 0.00% | −27,447−50.8% | Reduced |
| Barclays PLC | 25,394 | $122.1K | 0.00% | −558−2.2% | Reduced |
| Intrepid Financial Planning Group LLC | 20,150 | $96.9K | 0.05% | −10,000−33.2% | Reduced |
| Pinnacle Associates Ltd | 18,020 | $86.7K | 0.00% | +18,020 | New |
| Pinnacle Wealth Management Advisory Group, LLC | 18,020 | $86.7K | 0.01% | +18,020 | New |
| Bank of America Corp | 15,743 | $75.7K | 0.00% | −12,102−43.5% | Reduced |
| Morgan Stanley | 15,324 | $73.7K | 0.00% | −36,184−70.2% | Reduced |
| LMR Partners LLP | 14,663 | $70.5K | 0.00% | −2,229−13.2% | Reduced |
| Goldman Sachs Group Inc | 13,572 | $65.3K | 0.00% | −28,730−67.9% | Reduced |
| Cubist Systematic Strategies, LLC | 13,116 | $63.1K | 0.00% | −1,783−12.0% | Reduced |
| Belvedere Trading LLC | 12,931 | $62.2K | 0.02% | +12,931 | New |
| BIT Capital GmbH | 11,618 | $55.9K | 0.01% | +11,618 | New |
| Squarepoint Ops LLC | 10,445 | $50.2K | 0.00% | −8,898−46.0% | Reduced |
| Simplex Trading, LLC | 4,546 | $21.0K | 0.00% | +4,546 | New |
| Tower Research Capital LLC (TRC) | 3,575 | $17.2K | 0.00% | +553+18.3% | Added |
| Wells Fargo & Company | 2,101 | $10.1K | 0.00% | −995−32.1% | Reduced |
| JPMorgan Chase & Co | 1,275 | $6.13K | 0.00% | +38+3.1% | Added |
| Cutler Group LP | 1,420 | $6.00K | 0.00% | 00.0% | Unchanged |
| Kelly Financial Services LLC | 944 | $4.54K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 892 | $4.29K | 0.00% | +892 | New |
| Citigroup Inc | 697 | $3.35K | 0.00% | −40,680−98.3% | Reduced |
| China Universal Asset Management Co., Ltd. | 538 | $2.59K | 0.00% | −17−3.1% | Reduced |
| FMR LLC | 477 | $2.29K | 0.00% | −881−64.9% | Reduced |
| Royal Bank of Canada | 296 | $1.00K | 0.00% | −88−22.9% | Reduced |
| Daiwa Securities Group Inc. | 165 | $1.00K | 0.00% | 00.0% | Unchanged |
| Driehaus Capital Management LLC | 0 | $0 | 0.00% | −550,349−100.0% | Sold out |
| Woodline Partners LP | 0 | $0 | 0.00% | −426,172−100.0% | Sold out |
| Commodore Capital LP | 0 | $0 | 0.00% | −400,000−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −196,539−100.0% | Sold out |
| Silverarc Capital Management, LLC | 0 | $0 | 0.00% | −146,922−100.0% | Sold out |
| Guardian Point Capital, LP | 0 | $0 | 0.00% | −130,000−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −129,794−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −74,541−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −62,952−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −44,385−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −43,115−100.0% | Sold out |
| 683 Capital Management, LLC | 0 | $0 | 0.00% | −31,246−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | – | Sold out |
| Chicago Partners Investment Group LLC | 0 | $0 | 0.00% | −12,332−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −10,183−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −3,954−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −3,415−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −3,137−100.0% | Sold out |