ACUMEN PHARMACEUTICALS INC COMMON STOCK is a security (CUSIP 00509G209) tracked across SEC portfolio filings. 93 institutional managers reported $107.1M on Form 13F as of 2026-06-30; 6 registered fund positions totaling $1.2M via N-PORT as of 2026-04-30.
Showing 15 of 93 managers by value.
| Manager | Location | Value | Shares |
|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | Boston, MA | $49.5M | 20,992,669 |
| Sands Capital Ventures, LLC | ARLINGTON, VA | $8.8M | 3,720,105 |
| Alyeska Investment Group, L.P. | CHICAGO, IL | $5.8M | 2,454,754 |
| FRANKLIN RESOURCES INC | San Mateo, CA | $5.4M | 2,305,096 |
| ADAR1 Capital Management, LLC | AUSTIN, TX | $5.1M | 2,156,334 |
| Knollwood Investment Advisory, LLC | HUNT VALLEY, MD | $3.8M | 1,628,510 |
| VANGUARD GROUP INC | Valley Forge, PA | $3.5M | 1,653,772 |
| FMR LLC | BOSTON, MA | $2.7M | 1,157,346 |
| Ikarian Capital, LLC | DALLAS, TX | $2.5M | 1,053,797 |
| Hudson Bay Capital Management LP | Greenwich, CT | $2.3M | 968,940 |
| Pathstone Holdings, LLC | ENGLEWOOD, NJ | $2.0M | 859,110 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $1.7M | 601,476 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $1.6M | 659,675 |
| TWO SIGMA INVESTMENTS, LP | New York, NY | $1.3M | 530,812 |
| Laurion Capital Management LP | NEW YORK, NY | $1.2M | 525,444 |
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| VANGUARD EXTENDED MARKET INDEX FUND | VANGUARD INDEX FUNDS | $841K | 0.10% |
| Fidelity Advisor Health Care Fund | Fidelity Advisor Series VII | $202K | 0.70% |
| VANGUARD BALANCED INDEX FUND | VANGUARD VALLEY FORGE FUNDS | $62K | 0.01% |
| U.S. MICRO CAP PORTFOLIO | DFA INVESTMENT DIMENSIONS GROUP INC | $26K | 0.03% |
| Blackstone Alternative Multi-Strategy Fund | Blackstone Alternative Investment Funds | $13K | 0.04% |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND | VANGUARD INSTITUTIONAL INDEX FUNDS | $13K | 0.00% |