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
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Marshall Wace | Q2 2026 | 0.0% | $21.5m | 1,066,322 | 4% | added |
| Renaissance Technologies LLC | Q2 2026 | 0.0% | $10.6m | 525,100 | -5% | reduced |
| D. E. Shaw & Co | Q2 2026 | 0.0% | $17.9m | 887,048 | 33% | added |
| Brevan Howard Capital Management | Q2 2026 | 0.0% | $690.2k | 34,201 | 194% | added |
| Point72 Asset Management LP | Q2 2026 | 0.0% | $1.1m | 54,964 | – | new |
| Millennium Management | Q2 2026 | 0.0% | $642.0k | 31,814 | -91% | reduced |
| Citadel Advisors | Q2 2026 | 0.0% | $327.5k | 16,231 | -75% | reduced |
How has hedge fund ownership of AMPH changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 7 | $52.8m |
| Q1 2026 | 6 | $52.8m |
| Q4 2025 | 1 | $14.6m |
| Q3 2025 | 1 | $15.6m |
| Q2 2025 | 2 | $13.5m |
| Q1 2025 | 2 | $15.0m |
| Q4 2024 | 2 | $19.9m |
| Q3 2024 | 3 | $25.9m |
| Q2 2024 | 3 | $31.7m |
| Q1 2024 | 2 | $37.8m |
| Q4 2023 | 2 | $40.1m |
| Q3 2023 | 3 | $28.9m |
| Q2 2023 | 2 | $29.7m |
| Q1 2023 | 3 | $21.7m |
| Q4 2022 | 1 | $12.5m |
| Q3 2022 | 1 | $12.2m |
Counts every tracked manager that disclosed AMPH in that quarter's filing, including managers that have since stopped filing.