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 2024
Institutional positions in Acumen Pharmaceuticals, Inc. as of Jun 30, 2024. 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
- +1 vs. Q1 2024
- Shares held
- 43.6M
- +63.7K (+0.1%) vs. Q1 2024
- Total value
- $105.5M
- −$70.7M (−40.1%) vs. Q1 2024
- New holders
- 23
- 21 more added
- Sold out
- 22
- 20 more reduced
Compare with Q1 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 | $107.8M |
| 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 2024
Shares, value and share of portfolio for each institution holding Acumen Pharmaceuticals, Inc.; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 14,932,063 | $36.1M | 0.48% | 00.0% | Unchanged |
| Sands Capital Ventures, LLC | 3,417,075 | $8.27M | 2.77% | 00.0% | Unchanged |
| Franklin Resources Inc | 3,367,618 | $8.15M | 0.00% | −27,800−0.8% | Reduced |
| Rock Springs Capital Management LP | 2,300,059 | $5.57M | 0.17% | 00.0% | Unchanged |
| BlackRock Inc. | 2,158,661 | $5.22M | 0.00% | +1,968,964+1,038.0% | Added |
| FMR LLC | 2,022,103 | $4.89M | 0.00% | −66,897−3.2% | Reduced |
| Millennium Management LLC | 1,954,085 | $4.73M | 0.00% | −675,456−25.7% | Reduced |
| Vanguard Group Inc | 1,896,949 | $4.59M | 0.00% | +231,891+13.9% | Added |
| Knollwood Investment Advisory, LLC | 1,628,510 | $3.94M | 0.44% | 00.0% | Unchanged |
| Laurion Capital Management LP | 1,178,338 | $2.85M | 0.09% | −716,685−37.8% | Reduced |
| Price T Rowe Associates Inc | 1,046,364 | $2.53M | 0.00% | −51,912−4.7% | Reduced |
| Alyeska Investment Group, L.P. | 939,603 | $2.27M | 0.01% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 812,133 | $1.97M | 0.00% | +526,994+184.8% | Added |
| Hudson Bay Capital Management LP | 670,000 | $1.62M | 0.01% | +110,000+19.6% | Added |
| Pathstone Holdings, LLC | 480,223 | $1.16M | 0.01% | +420.0% | Added |
| State Street Corp | 436,565 | $1.06M | 0.00% | +354,787+433.8% | Added |
| Jane Street Group, LLC | 427,689 | $1.04M | 0.00% | −172,566−28.7% | Reduced |
| Two Sigma Advisers, LP | 392,100 | $948.9K | 0.00% | +175,100+80.7% | Added |
| Renaissance Technologies LLC | 338,100 | $818.2K | 0.00% | +338,100 | New |
| Two Sigma Investments, LP | 310,797 | $752.1K | 0.00% | +132,896+74.7% | Added |
| Ikarian Capital, LLC | 266,435 | $644.8K | 0.20% | 00.0% | Unchanged |
| TD Asset Management Inc | 148,800 | $360.1K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 148,400 | $359.1K | 0.01% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 126,422 | $305.9K | 0.00% | +126,422 | New |
| Group One Trading, L.P. | 125,024 | $302.6K | 0.01% | +96,987+345.9% | Added |
| Bank of America Corp | 122,725 | $297.0K | 0.00% | +42,109+52.2% | Added |
| Charles Schwab Investment Management Inc | 108,743 | $263.2K | 0.00% | +108,743 | New |
| Man Group plc | 105,777 | $256.0K | 0.00% | −81,808−43.6% | Reduced |
| Catalyst Financial Partners LLC | 89,699 | $217.1K | 0.05% | 00.0% | Unchanged |
| Morgan Stanley | 87,809 | $212.5K | 0.00% | −58,327−39.9% | Reduced |
| Boothbay Fund Management, LLC | 85,458 | $206.8K | 0.01% | +33,750+65.3% | Added |
| Citadel Advisors LLC | 83,012 | $200.9K | 0.00% | +59,661+255.5% | Added |
| Qube Research & Technologies Ltd | 75,869 | $183.6K | 0.00% | −91,719−54.7% | Reduced |
| Schonfeld Strategic Advisors LLC | 73,619 | $178.2K | 0.00% | −384,865−83.9% | Reduced |
| Northern Trust Corp | 70,088 | $169.6K | 0.00% | +13,315+23.5% | Added |
| Susquehanna Fundamental Investments, LLC | 62,518 | $151.3K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 59,996 | $145.2K | 0.00% | −45−0.1% | Reduced |
| Nuveen Asset Management, LLC | 56,664 | $137.1K | 0.00% | +56,664 | New |
| Dimensional Fund Advisors LP | 56,548 | $136.8K | 0.00% | −5,180−8.4% | Reduced |
| Murchinson Ltd. | 56,250 | $136.1K | 0.03% | +56,250 | New |
| D. E. Shaw & Co., Inc. | 55,007 | $133.1K | 0.00% | +55,007 | New |
| Susquehanna International Group, LLP | 54,080 | $130.9K | 0.00% | −211,763−79.7% | Reduced |
| Rhumbline Advisers | 52,323 | $126.6K | 0.00% | +52,323 | New |
| Goldman Sachs Group Inc | 51,052 | $123.5K | 0.00% | −266,852−83.9% | Reduced |
| JPMorgan Chase & Co | 35,754 | $120.1K | 0.00% | −108,026−75.1% | Reduced |
| Jump Financial, LLC | 49,367 | $119.5K | 0.00% | +25,416+106.1% | Added |
| Prelude Capital Management, LLC | 46,410 | $112.3K | 0.01% | +9,410+25.4% | Added |
| American Century Companies Inc | 45,444 | $110.0K | 0.00% | +10,840+31.3% | Added |
| New York State Common Retirement Fund | 42,400 | $102.6K | 0.00% | +42,400 | New |
| Deutsche Bank AG | 33,649 | $81.4K | 0.00% | +33,649 | New |
| Bank of Montreal | 30,885 | $76.6K | 0.00% | −1,015−3.2% | Reduced |
| Intrepid Financial Planning Group LLC | 30,150 | $73.0K | 0.03% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 26,488 | $64.1K | 0.00% | +25,078+1,778.6% | Added |
| Marathon Trading Investment Management LLC | 26,298 | $63.6K | 0.02% | −33,702−56.2% | Reduced |
| Virtu Financial LLC | 24,402 | $59.0K | 0.00% | +24,402 | New |
| Corebridge Financial, Inc. | 22,567 | $54.8K | 0.00% | +22,567 | New |
| Susquehanna Portfolio Strategies, LLC | 21,903 | $53.0K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 21,446 | $51.9K | 0.00% | −25,864−54.7% | Reduced |
| Wells Fargo & Company | 20,431 | $49.4K | 0.00% | +19,223+1,591.3% | Added |
| Invesco Ltd. | 18,986 | $45.9K | 0.00% | +18,986 | New |
| Walleye Capital LLC | 18,801 | $45.5K | 0.00% | +18,801 | New |
| Pinnacle Associates Ltd | 18,020 | $43.6K | 0.00% | 00.0% | Unchanged |
| Pinnacle Wealth Management Advisory Group, LLC | 18,020 | $43.6K | 0.00% | 00.0% | Unchanged |
| Oxford Asset Management LLP | 15,304 | $37.0K | 0.04% | +15,304 | New |
| Stifel Financial Corp | 13,650 | $33.0K | 0.00% | −1,000−6.8% | Reduced |
| UBS Group AG | 12,786 | $30.9K | 0.00% | +6,143+92.5% | Added |
| Engineers Gate Manager LP | 11,479 | $27.8K | 0.00% | +11,479 | New |
| Gladius Capital Management LP | 10,939 | $26.5K | 0.03% | +10,939 | New |
| Advisor Group Holdings, Inc. | 10,400 | $25.2K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 9,415 | $22.8K | 0.00% | −125,979−93.0% | Reduced |
| Cubist Systematic Strategies, LLC | 8,880 | $21.5K | 0.00% | +6,484+270.6% | Added |
| Royal Bank of Canada | 4,045 | $10.0K | 0.00% | +3,943+3,865.7% | Added |
| Ameritas Investment Partners, Inc. | 4,110 | $9.95K | 0.00% | +4,110 | New |
| Point72 (DIFC) Ltd | 4,018 | $9.72K | 0.00% | +4,018 | New |
| Legal & General Group Plc | 3,635 | $8.80K | 0.00% | +3,635 | New |
| California State Teachers Retirement System | 3,039 | $7.35K | 0.00% | +3,039 | New |
| Amalgamated Bank | 1,451 | $4.00K | 0.00% | +1,451 | New |
| Sandy Spring Bank | 1,500 | $3.63K | 0.00% | 00.0% | Unchanged |
| Kelly Financial Services LLC | 944 | $2.29K | 0.00% | 00.0% | Unchanged |
| Redwood Wealth Management Group, LLC | 800 | $1.94K | 0.00% | +800 | New |
| Planning Capital Management Corp | 5 | $13 | 0.00% | +5 | New |
| Parkman Healthcare Partners LLC | 0 | $0 | 0.00% | −576,657−100.0% | Sold out |
| Tang Capital Management LLC | 0 | $0 | 0.00% | −246,895−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −113,232−100.0% | Sold out |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −112,258−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −105,117−100.0% | Sold out |
| New York Life Investment Management LLC | 0 | $0 | 0.00% | −95,089−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −89,707−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −63,949−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −56,369−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −37,191−100.0% | Sold out |
| Point72 Asia (Singapore) Pte. Ltd. | 0 | $0 | 0.00% | −27,556−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −25,620−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −25,370−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −23,800−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −19,000−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −12,856−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −12,410−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −11,503−100.0% | Sold out |
| CTC Alternative Strategies, Ltd. | 0 | $0 | 0.00% | −11,100−100.0% | Sold out |