Insider Transactions (Latest 20)


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Date Name Title Action No Shares Price Per Share

Insider Transactions For AMPH

2025-12-17Zhou, RongSENIOR EVP, PRODUCTION CENTERPurchased9787$11.33
2025-12-17Zhou, RongSENIOR EVP, PRODUCTION CENTERSold9787$0.00
2025-12-17Zhou, RongSENIOR EVP, PRODUCTION CENTERSold9787$26.20
2025-12-12Petersen, Floyd F.DirectorSold2426$25.92
2025-12-11Petersen, Floyd F.DirectorSold1737$25.69
2025-11-25Prins, Richard KDirectorPurchased4179$16.69
2025-11-25Prins, Richard KDirectorSold4179$27.10
2025-11-25Prins, Richard KDirectorSold4179$0.00
2025-11-13Petersen, Floyd F.DirectorPurchased16679$16.69
2025-11-13Petersen, Floyd F.DirectorSold16679$26.49
2025-11-13Petersen, Floyd F.DirectorSold16679$0.00
2025-11-03Petersen, Floyd F.DirectorSold500$25.27
2025-10-01Petersen, Floyd F.DirectorSold500$27.20
2025-09-02Petersen, Floyd F.DirectorSold500$30.98
2025-08-01Petersen, Floyd F.DirectorSold500$20.83
2025-07-18Gaugh, David RussellDirectorPurchased6304$0.00
2025-07-18Gaugh, David RussellDirectorPurchased13987$0.00
2025-07-02Petersen, Floyd F.DirectorSold500$23.47
2025-06-13Zhang, Jack Y.Director, CEO & CHIEF SCIENTIFIC OFFICER, 10% OwnerSold200000$0.00
2025-06-13Zhang, Jack Y.Director, CEO & CHIEF SCIENTIFIC OFFICER, 10% OwnerPurchased200000$13.03

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