Acumen Pharmaceuticals, Inc. · NASDAQ:ABOS
Acumen Pharmaceuticals, Inc. shareholders
As of Jun 30, 2026, 92 institutions reported holding Acumen Pharmaceuticals, Inc., 66.2% of its shares. Largest: Ra Capital Management, L.P., Sands Capital Alternatives, LLC and BlackRock. New holders, exits, insiders and big stakes, each with its filing.
| Holder | Shares | % of Acumen Pharmaceuticals, Inc. | Change | Filed |
|---|---|---|---|---|
| Ra Capital Management, L.P. | 21M | 29.0% | no change | Aug 14, 2026 |
| Sands Capital Alternatives, LLC | 3.72M | 5.1% | no change | Aug 13, 2026 |
| BlackRock | 2.49M | 3.4% | +2.31M | Aug 7, 2026 |
| Alyeska Investment Group, L.P. | 2.45M | 3.4% | no change | Aug 14, 2026 |
| Franklin Templeton | 2.31M | 3.2% | no change | Aug 13, 2026 |
| Vanguard | 2.29M | 3.2% | +579K | Aug 13, 2026 |
| ADAR1 Capital Management, LLC | 2.11M | 2.9% | −45,000 | Aug 14, 2026 |
| Knollwood Investment Advisory, LLC | 1.63M | 2.3% | no change | Aug 13, 2026 |
| Geode Capital | 1.14M | 1.6% | +726K | Aug 12, 2026 |
| Ikarian Capital, LLC | 1.05M | 1.5% | no change | Aug 14, 2026 |