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Amphastar Pharmaceuticals, Inc. (AMPH)
Ticker: AMPH
CIK: 0001297184
49
Filings Found (Last 1 Year)
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4
2026. 9. 21.
PETERS WILLIAM J (CIK 0001263136)
Insider trading report
Open Filing
4
2026. 9. 16.
Zhou Rong (CIK 0001645326)
Insider trading report
Open Filing
4
2026. 9. 2.
Zhou Rong (CIK 0001645326)
Insider trading report
Open Filing
4
2026. 8. 11.
PRINS RICHARD K (CIK 0001047579)
Insider trading report
Open Filing
4
2026. 8. 7.
PETERS WILLIAM J (CIK 0001263136)
Insider trading report
Open Filing
10-Q
2026. 6. 30.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Quarterly report
10-Q
Open Filing
8-K
2026. 8. 6.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Current report
8-K
Open Filing
4
2026. 7. 9.
Pierce Anthony T (CIK 0002141303)
Insider trading report
Open Filing
8-K
2026. 7. 9.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Current report
8-K
Open Filing
8-K
2026. 7. 2.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Current report
8-K
Open Filing
4
2026. 6. 1.
Gaugh David Russell (CIK 0002075974)
Insider trading report
Open Filing
4
2026. 6. 1.
Deflin Gayle (CIK 0001866024)
Insider trading report
Open Filing
4
2026. 6. 1.
Gerst Diane G. (CIK 0001611283)
Insider trading report
Open Filing
4
2026. 6. 1.
Lee Howard (CIK 0001379941)
Insider trading report
Open Filing
8-K
2026. 6. 1.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Current report
8-K
Open Filing
4
2024. 8. 19.
PRINS RICHARD K (CIK 0001047579)
Insider trading report
Open Filing
4
2026. 6. 1.
ZASLOFF MICHAEL A (CIK 0001033511)
Insider trading report
Open Filing
10-Q
2026. 3. 31.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Quarterly report
10-Q
Open Filing
8-K
2026. 5. 7.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Current report
8-K
Open Filing
4
2026. 3. 15.
Liawatidewi Yakob (CIK 0001743927)
Insider trading report
Open Filing
4
2026. 3. 15.
Zhou Rong (CIK 0001645326)
Insider trading report
Open Filing
4
2026. 3. 15.
PETERS WILLIAM J (CIK 0001263136)
Insider trading report
Open Filing
4
2026. 3. 15.
Luo Mary Z. (CIK 0001611156)
Insider trading report
Open Filing
8-K
2026. 3. 12.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Current report
8-K
Open Filing
4
2026. 3. 9.
Liawatidewi Yakob (CIK 0001743927)
Insider trading report
Open Filing
4
2026. 3. 9.
Zhou Rong (CIK 0001645326)
Insider trading report
Open Filing
4
2026. 3. 9.
PETERS WILLIAM J (CIK 0001263136)
Insider trading report
Open Filing
4
2026. 3. 9.
Luo Mary Z. (CIK 0001611156)
Insider trading report
Open Filing
4
2026. 3. 6.
Liawatidewi Yakob (CIK 0001743927)
Insider trading report
Open Filing
4
2026. 3. 6.
Zhou Rong (CIK 0001645326)
Insider trading report
Open Filing
4
2026. 3. 6.
PETERS WILLIAM J (CIK 0001263136)
Insider trading report
Open Filing
4
2026. 3. 6.
Luo Mary Z. (CIK 0001611156)
Insider trading report
Open Filing
4
2026. 3. 4.
Liawatidewi Yakob (CIK 0001743927)
Insider trading report
Open Filing
4
2026. 3. 4.
Zhou Rong (CIK 0001645326)
Insider trading report
Open Filing
8-K
2026. 3. 3.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Current report
8-K
Open Filing
8-K
2026. 3. 3.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Current report
8-K
Open Filing
4
2026. 3. 4.
PETERS WILLIAM J (CIK 0001263136)
Insider trading report
Open Filing
4
2026. 3. 4.
Luo Mary Z. (CIK 0001611156)
Insider trading report
OWNERSHIP DOCUMENT
Open Filing
10-K
2025. 12. 31.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Annual report
10-K
Open Filing
8-K
2026. 2. 26.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Current report
8-K
Open Filing
8-K
2026. 1. 6.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Current report
8-K
Open Filing
4
2025. 12. 17.
Zhou Rong (CIK 0001645326)
Insider trading report
Open Filing
4
2025. 12. 11.
Petersen Floyd F. (CIK 0001611286)
Insider trading report
Open Filing
4
2025. 11. 25.
PRINS RICHARD K (CIK 0001047579)
Insider trading report
Open Filing
4
2025. 11. 13.
Petersen Floyd F. (CIK 0001611286)
Insider trading report
Open Filing
10-Q
2025. 9. 30.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Quarterly report
10-Q
Open Filing
8-K
2025. 11. 6.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Current report
8-K
Open Filing
4
2025. 11. 3.
Petersen Floyd F. (CIK 0001611286)
Insider trading report
Open Filing
8-K
2025. 10. 21.
Amphastar Pharmaceuticals, Inc. (AMPH) (CIK 0001297184)
Current report
1.01
Open Filing
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