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Which hedge funds own ABOS? ACUMEN PHARMACEUTICALS INC, Q2 2026 13F holders

HealthcareBiotechnology

19 tracked hedge funds disclosed a position in ABOS (ACUMEN PHARMACEUTICALS INC) in their Q2 2026 13F filings, worth $78.9m in total. The largest holder by portfolio weight is RA Capital Management, L.P. at 0.5% of its book. 5 opened a new position this quarter: Spark Investment Management LLC, Bronte Capital Management Pty Ltd., Y-Intercept (Hong Kong) Ltd, Citadel Advisors LLC. 5 exited: Laurion Capital Management LP, Catalyst Funds Management Pty Ltd, Brevan Howard Capital Management LP.

19
Holders
Tracked managers whose filing for the quarter reports a long equity position in the security.
5
New this quarter
Holders whose previous filing (at most two quarters earlier) did not report the security.
5
Exited this quarter
Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
$315k
Inflow, new holders
Combined value of the positions the new holders reported for the quarter.
$1.6m
Outflow, exits
Combined value the exiting managers reported for the security in their previous filing.
$78.9m
Combined value
Sum of the holders' reported positions in the security.
1.5%
Share of managers holding
Holders as a share of tracked managers filing for that quarter. Comparable across the 2024 coverage expansion, where the raw holder count is not.

Holders, Q2 2026

19 rows
RA Capital Management, L.P. Hedge fund0.5%$56.1m20.99m0.0%held
Ikarian Capital, LLC Hedge fund0.5%$2.8m1.05m0.0%held
ADAR1 Capital Management, LLC Hedge fund0.3%$5.6m2.11m−2.1%reduced
Verdad Advisers, LP Hedge fund0.1%$119k44,478+19%added
Rangeley Capital, LLC Hedge fund0.09%$93.5k35,0000.0%held
Spark Investment Management LLC Hedge fund0.08%$39.2k14,700–new
Alyeska Investment Group, L.P. Hedge fund0.02%$6.6m2.45m0.0%held
Boothbay Fund Management, LLC Hedge fund0.01%$729k273,0120.0%held
Hudson Bay Capital Management LP Hedge fund0.01%$2.5m955,000−1.4%reduced
Bronte Capital Management Pty Ltd. Hedge fund0.0%$28.6k10,716–new
Renaissance Technologies LLC Hedge fund0.0%$1.8m675,025+42%added
Y-Intercept (Hong Kong) Ltd Hedge fund0.0%$78.9k29,540–new
Two Sigma Investments, LP Hedge fund0.0%$1.7m622,882+17%added
Squarepoint Ops LLC Hedge fund0.0%$140k52,351+249%added
Qube Research & Technologies Ltd Hedge fund0.0%$103k38,614−68%reduced
Millennium Management LLC Hedge fund0.0%$162k60,598−91%reduced
Marshall Wace, LLP Hedge fund0.0%$128k48,114−75%reduced
Citadel Advisors LLC Hedge fund0.0%$136k51,049–new
Balyasny Asset Management L.P. Hedge fund0.0%$31.7k11,872–new