Petersen Floyd F.
SEC insider (Form 3/4/5 filer). CIK 0001611286. Director at Amphastar Pharmaceuticals, Inc. (AMPH). 15 reported Form 4/5 transactions since Sep 2024; latest on Dec 12, 2025. Located in RANCHO CUCAMONGA, CA.
Companies Petersen Floyd F. has filed insider reports for
- Amphastar Pharmaceuticals, Inc. (AMPH): Director
Petersen Floyd F.
CIK: 0001611286
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 (15 total)
- Dec 12, 2025AMPH
Amphastar Pharmaceuticals, Inc.
SaleDirect2.4K shares at avg. $25.92$63K - Dec 11, 2025AMPH
Amphastar Pharmaceuticals, Inc.
SaleDirect1.7K shares at avg. $25.69$45K - Nov 13, 2025AMPH
Amphastar Pharmaceuticals, Inc.
ExerciseDirect16.7K shares at avg. $16.69$278K - Nov 13, 2025AMPH
Amphastar Pharmaceuticals, Inc.
SaleDirect16.7K shares at avg. $26.49$442K - Nov 3, 2025AMPH
Amphastar Pharmaceuticals, Inc.
SaleDirect500 shares at avg. $25.27$13K - Oct 1, 2025AMPH
Amphastar Pharmaceuticals, Inc.
SaleDirect500 shares at avg. $27.20$14K - Sep 2, 2025AMPH
Amphastar Pharmaceuticals, Inc.
SaleDirect500 shares at avg. $30.98$15K - Aug 1, 2025AMPH
Amphastar Pharmaceuticals, Inc.
SaleDirect500 shares at avg. $20.83$10K - Jul 2, 2025AMPH
Amphastar Pharmaceuticals, Inc.
SaleDirect500 shares at avg. $23.47$12K - Jun 2, 2025AMPH
Amphastar Pharmaceuticals, Inc.
AwardDirect5.1K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Dec 12, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Sale | 2,426 | $25.92 | $62,888 | Direct |
| Dec 11, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Sale | 1,737 | $25.69 | $44,620 | Direct |
| Nov 13, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Exercise | 16,679 | $16.69 | $278,373 | Direct |
| Nov 13, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Sale | 16,679 | $26.49 | $441,837 | Direct |
| Nov 3, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Sale | 500 | $25.27 | $12,633 | Direct |
| Oct 1, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Sale | 500 | $27.20 | $13,602 | Direct |
| Sep 2, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Sale | 500 | $30.98 | $15,492 | Direct |
| Aug 1, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Sale | 500 | $20.83 | $10,416 | Direct |
| Jul 2, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Sale | 500 | $23.47 | $11,734 | Direct |
| Jun 2, 2025 | AMPH Amphastar Pharmaceuticals, Inc. | Award | 5,122 | - | - | Direct |
1-10 of 15 transactions