Amphastar Pharmaceuticals, Inc. (AMPH) — Ownership
Institutional and insider ownership of Amphastar Pharmaceuticals, Inc., top holders, and 13F filings.
Institutional ownership
| Year | Holders | % institutional |
|---|---|---|
| 2026 Q1 | 216 | 69.2% |
Institutional and insider ownership of Amphastar Pharmaceuticals, Inc., top holders, and 13F filings.
Institutional ownership
| Year | Holders | % institutional |
|---|---|---|
| 2026 Q1 | 216 | 69.2% |