Liawatidewi Yakob (CIK 1743927) reported 5 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-17). Recent activity: Sell AMPH (1,033 shares), Buy AMPH (35,450 shares), Sell AMPH (1,870 shares), Sell AMPH (1,144 shares), Sell AMPH (965 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-17 | Amphastar Pharmaceuticals, Inc. (AMPH) | EVP CORP ADMIN CENTER | Sell | 1,033 | $18,780 |
| 2026-03-11 | Amphastar Pharmaceuticals, Inc. (AMPH) | EVP CORP ADMIN CENTER | Buy | 35,450 | $0 |
| 2026-03-11 | Amphastar Pharmaceuticals, Inc. (AMPH) | EVP CORP ADMIN CENTER | Sell | 1,870 | $35,362 |
| 2026-03-10 | Amphastar Pharmaceuticals, Inc. (AMPH) | EVP CORP ADMIN CENTER | Sell | 1,144 | $22,125 |
| 2026-03-06 | Amphastar Pharmaceuticals, Inc. (AMPH) | EVP CORP ADMIN CENTER | Sell | 965 | $19,261 |
来源：SEC Form 4 申报文件 · 截至 2026-03-17