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Amphastar Pharmaceuticals, Inc.

All insiders

11 insiders

InsiderRole% of sharesShares heldLast trade
Gaugh David RussellDirector0.03%14,447Jun 1, 2026
Deflin GayleDirector0.04%19,057Jun 1, 2026
Gerst Diane G.Director0.07%31,899Jun 1, 2026
PRINS RICHARD KDirector0.09%37,598Jun 1, 2026
ZASLOFF MICHAEL ADirector0.09%37,667Jun 1, 2026
Liawatidewi YakobFormerEVP CORP ADMIN CENTER · Director0.29%121,892Mar 15, 2026
Lee HowardDirector0.37%159,350Jun 2, 2026
Zhou RongSENIOR EVP, PRODUCTION CENTER0.40%171,554Mar 15, 2026
PETERS WILLIAM JCFO, EVP & TREASURER · Director0.41%175,063Mar 15, 2026
Zhang Jack Y.CEO & CHIEF SCIENTIFIC OFFICER · Director · 10% owner9.96%4,235,177Mar 15, 2026
Luo Mary Z.COO, Chief Scientist, Chairman · Director · 10% owner
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