Acumen Pharmaceuticals, Inc. ABOS
0.23 USD -0.01 (-2.21%)
At closeNov 4, 2026, 6:10 AM EST
0.23 -0.01 -2.86%
Pre-market · Nov 4, 6:10 AM ET
0.225 Day range 0.2481
0.198 52-week range 3.60
- YTD
- -88.89%
- 1 year
- -89.25%
Held by funds
41 US ETFs and mutual funds hold ABOS · largest positions
Ownership
Held by insiders 11.24%
Held by institutions 78.46%
Float held by institutions 88.39%
Institutions 108
Top institutional holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| RA Capital Management, L.P. | 24.85% | 14,932,063 | 26.73M | Sep 29, 2024 |
| Franklin Resources, Inc. | 5.91% | 3,549,069 | 6.35M | Sep 29, 2024 |
| Sands Capital Ventures, LLC | 5.69% | 3,417,075 | 6.12M | Sep 29, 2024 |
| Blackrock Inc. | 3.88% | 2,331,530 | 4.17M | Sep 29, 2024 |
| Rock Springs Capital Management, LP | 3.83% | 2,300,059 | 4.12M | Sep 29, 2024 |
| FMR, LLC | 3.38% | 2,028,117 | 3.63M | Sep 29, 2024 |
Top mutual fund holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| Franklin Strategic Series-Franklin Small Cap Growth Fund | 2.00% | 1,200,300 | 2.15M | Jul 30, 2024 |
| Vanguard Total Stock Market Index Fund | 1.91% | 1,146,316 | 2.05M | Sep 29, 2024 |
| Fidelity Select Portfolios - Health Care | 1.90% | 1,140,000 | 2.04M | Oct 30, 2024 |
| iShares Russell 2000 ETF | 1.68% | 1,009,063 | 1.81M | Oct 30, 2024 |
| Franklin Strategic Series-Franklin Biotechnology Discove | 1.38% | 826,400 | 1.48M | Jul 30, 2024 |
| Fidelity Advisor Health Care Fund | 1.17% | 700,000 | 1.25M | Oct 30, 2024 |
Insiders
| Insider | Relation | Latest transaction | Date | Shares held |
|---|---|---|---|---|
| BARTON RUSSELL | Chief Operating Officer | Sale | Jan 17, 2024 | 96,867 |
| IVES JEFFREY L | Director | Sale | Aug 16, 2023 | 0 |
| MEISNER DEREK M | Officer | Sale | Jan 18, 2024 | 108,867 |
| O'CONNELL DANIEL JOSEPH | Chief Executive Officer | Sale | Jan 18, 2024 | 502,485 |
| RA CAPITAL MANAGEMENT, L.P. | Director and Beneficial Owner of more than 10% of a Class of Security | Purchase | Jul 20, 2023 | 0 |
| SIEMERS ERIC M.D. | Officer | Sale | Jan 17, 2024 | 117,576 |