4//SEC Filing
Luo Mary Z. 4
Accession 0001415889-25-007783
CIK 0001297184other
Filed
Mar 11, 8:00 PM ET
Accepted
Mar 12, 4:03 PM ET
Size
13.4 KB
Accession
0001415889-25-007783
Insider Transaction Report
Form 4
Zhang Jack Y.
DirectorCEO & CHIEF SCIENTIFIC OFFICER10% Owner
Transactions
- Award
Employee Stock Option (right to buy)
2025-03-10+246,821→ 246,821 totalExercise: $28.41Exp: 2035-03-10→ Common Stock (246,821 underlying) - Award
Common Stock
2025-03-10+48,996→ 1,148,257 total(indirect: See footnote) - Award
Employee Stock Option (right to buy)
2025-03-10+104,052→ 104,052 total(indirect: See footnote)Exercise: $28.41Exp: 2035-03-10→ Common Stock (104,052 underlying) - Award
Common Stock
2025-03-10+116,226→ 2,609,382 total
Holdings
- 6,827,679(indirect: See footnote)
Common Stock
Luo Mary Z.
DirectorCOO, Chief Scientist, Chairman10% Owner
Transactions
- Award
Common Stock
2025-03-10+116,226→ 2,609,382 total - Award
Common Stock
2025-03-10+48,996→ 1,148,257 total(indirect: See footnote) - Award
Employee Stock Option (right to buy)
2025-03-10+104,052→ 104,052 total(indirect: See footnote)Exercise: $28.41Exp: 2035-03-10→ Common Stock (104,052 underlying) - Award
Employee Stock Option (right to buy)
2025-03-10+246,821→ 246,821 totalExercise: $28.41Exp: 2035-03-10→ Common Stock (246,821 underlying)
Holdings
- 6,827,679(indirect: See footnote)
Common Stock
Footnotes (4)
- [F1]The reported shares are represented by restricted stock units, or RSUs, which vest in four equal annual installments beginning on March 10, 2026.
- [F2]The securities are held of record by Mary Z. Luo. The reporting persons are husband and wife.
- [F3]The shares are held of record by Applied Physics and Chemistry Laboratories, Inc., of which the reporting persons and The Bill Luobei Zhang 2004 Irrevocable Trust are the sole owners.
- [F4]The shares subject to the option vest in four equal annual installments beginning on March 10, 2026.
Documents
Issuer
Amphastar Pharmaceuticals, Inc.
CIK 0001297184
Entity typeother
Related Parties
1- filerCIK 0001611156
Filing Metadata
- Form type
- 4
- Filed
- Mar 11, 8:00 PM ET
- Accepted
- Mar 12, 4:03 PM ET
- Size
- 13.4 KB