June 3, 2024 · Form 4 insider transaction
ZASLOFF MICHAEL A bought 3,076 shares of Amphastar Pharmaceuticals Inc at $0.00 per share, a transaction worth N/A. The trade was recorded as grant or award and disclosed on an SEC Form 4, filed 2 days after the transaction.
The reported shares are represented by restricted stock units, or RSUs, all of which vest on June 3, 2025.