Liawatidewi Yakob
SEC insider (Form 3/4/5 filer). CIK 0001743927. EVP CORP ADMIN CENTER at Amphastar Pharmaceuticals, Inc. (AMPH). 12 reported Form 4/5 transactions since Sep 2024; latest on Mar 15, 2026. Located in RANCHO CUCAMONGA, CA.
Companies Liawatidewi Yakob has filed insider reports for
- Amphastar Pharmaceuticals, Inc. (AMPH): Director, Officer, EVP CORP ADMIN CENTER
Liawatidewi Yakob
CIK: 0001743927
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Amphastar Pharmaceuticals, Inc.
Discretionary Trading P&L
Holdings
Transaction History (12 total)
- Mar 15, 2026AMPH
Amphastar Pharmaceuticals, Inc.
Tax PaymentDirect1K shares at avg. $18.18$19K - Mar 10, 2026AMPH
Amphastar Pharmaceuticals, Inc.
Tax PaymentDirect1.9K shares at avg. $18.91$35K - Mar 9, 2026AMPH
Amphastar Pharmaceuticals, Inc.
AwardDirect35.5K shares- - Mar 6, 2026AMPH
Amphastar Pharmaceuticals, Inc.
Tax PaymentDirect1.1K shares at avg. $19.34$22K - Mar 4, 2026AMPH
Amphastar Pharmaceuticals, Inc.
Tax PaymentDirect965 shares at avg. $19.96$19K - Mar 17, 2025AMPH
Amphastar Pharmaceuticals, Inc.
Tax PaymentDirect1.7K shares at avg. $27.69$48K - Mar 15, 2025AMPH
Amphastar Pharmaceuticals, Inc.
Tax PaymentDirect1K shares at avg. $26.66$27K - Mar 10, 2025AMPH
Amphastar Pharmaceuticals, Inc.
AwardDirect20.8K shares- - Mar 6, 2025AMPH
Amphastar Pharmaceuticals, Inc.
Tax PaymentDirect1.1K shares at avg. $28.32$32K - Mar 4, 2025AMPH
Amphastar Pharmaceuticals, Inc.
Tax PaymentDirect963 shares at avg. $27.62$27K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Mar 15, 2026 | AMPH Amphastar Pharmaceuticals, Inc. | Tax Payment | 1,033 | $18.18 | $18,780 | Direct |
| Mar 10, 2026 | AMPH Amphastar Pharmaceuticals, Inc. | Tax Payment | 1,870 | $18.91 | $35,362 | Direct |
| Mar 9, 2026 | AMPH Amphastar Pharmaceuticals, Inc. | Award | 35,450 | - | $0 | Direct |
| Mar 6, 2026 | AMPH Amphastar Pharmaceuticals, Inc. | Tax Payment | 1,144 | $19.34 | $22,125 | Direct |
| Mar 4, 2026 | AMPH Amphastar Pharmaceuticals, Inc. | Tax Payment | 965 | $19.96 | $19,261 | Direct |
| Mar 17, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Tax Payment | 1,731 | $27.69 | $47,931 | Direct |
| Mar 15, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Tax Payment | 1,031 | $26.66 | $27,486 | Direct |
| Mar 10, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Award | 20,837 | - | - | Direct |
| Mar 6, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Tax Payment | 1,141 | $28.32 | $32,313 | Direct |
| Mar 4, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Tax Payment | 963 | $27.62 | $26,598 | Direct |
1-10 of 12 transactions