Institutional Ownership
Acumen Pharmaceuticals Inc
CUSIP 00509G209COMABOSQ1 2026
Institutional Holders
81
13F filers
Shares Held
44.29M
Aggregate institutional
Institutional Value
$102.34M
Q1 2026
Net New Holders
+12
18 new · 6 closed
Institutional Ownership Trend
Aggregate 13F value by quarter
Multi-quarter trend — upgrade to see history
UpgradePosition Activity
Q1 2026
New positions18
Increased31
Decreased12
Sold out6
Institutional Holders
81 funds hold this security · Q1 2026
| # | Fund | Shares | Value | Δ Shares | Activity |
|---|---|---|---|---|---|
| 1 | Ra Capital Management, L.P. | 20.99M | $49.54M | +6.06M | Added |
| 2 | Sands Capital Alternatives, LLC | 3.72M | $8.78M | +303.0K | Added |
| 3 | Alyeska Investment Group, L.P. | 2.45M | $5.78M | +1.52M | Added |
| 4 | Franklin Resources Inc | 2.31M | $5.44M | 0 | Held |
| 5 | Adar1 Capital Management, LLC | 2.16M | $5.09M | +1.27M | Added |
| 6 | Knollwood Investment Advisory, LLC | 1.63M | $3.84M | 0 | Held |
| 7 | Fmr LLC | 1.16M | $2.73M | −870.2K | Reduced |
| 8 | Ikarian Capital, LLC | 1.05M | $2.49M | +799.5K | Added |
| 9 | Hudson Bay Capital Management LP | 968.9K | $2.29M | +243.9K | Added |
| 10 | Pathstone Holdings, LLC | 859.1K | $2.03M | 0 | Held |
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