March 9, 2026 · Form 4 insider transaction
Liawatidewi Yakob bought 73,126 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 shares subject to the option vest in four equal annual installments beginning on March 9, 2027.