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Which hedge funds own AMPH? AMPHASTAR PHARMACEUTICALS IN, Q2 2026 13F holders

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7 of the hedge funds tracked by WhaleCreep disclosed a position in AMPH (AMPHASTAR PHARMACEUTICALS IN) in their Q2 2026 13F filings, worth $52.8m in total. The largest holder by portfolio weight is Marshall Wace at 0.0% of its book. 1 manager opened a new position this quarter: Point72 Asset Management LP.

7tracked managers holding
1opened this quarter
0exited this quarter

Which hedge funds hold AMPH? Current holders by portfolio weight

ManagerAs ofWeight of bookValueSharesΔ sharesAction
Marshall WaceQ2 2026 0.0%$21.5m1,066,322 4% added
Renaissance Technologies LLCQ2 2026 0.0%$10.6m525,100 -5% reduced
D. E. Shaw & CoQ2 2026 0.0%$17.9m887,048 33% added
Brevan Howard Capital ManagementQ2 2026 0.0%$690.2k34,201 194% added
Point72 Asset Management LPQ2 2026 0.0%$1.1m54,964 new
Millennium ManagementQ2 2026 0.0%$642.0k31,814 -91% reduced
Citadel AdvisorsQ2 2026 0.0%$327.5k16,231 -75% reduced

How has hedge fund ownership of AMPH changed?

QuarterManagers holdingCombined value
Q2 20267$52.8m
Q1 20266$52.8m
Q4 20251$14.6m
Q3 20251$15.6m
Q2 20252$13.5m
Q1 20252$15.0m
Q4 20242$19.9m
Q3 20243$25.9m
Q2 20243$31.7m
Q1 20242$37.8m
Q4 20232$40.1m
Q3 20233$28.9m
Q2 20232$29.7m
Q1 20233$21.7m
Q4 20221$12.5m
Q3 20221$12.2m

Counts every tracked manager that disclosed AMPH in that quarter's filing, including managers that have since stopped filing.