Legal Insider Trading Data | Free and Professional Subscription Services | Insider Insights urn:uuid:44dc5070-ddad-005f-702e-d63c7b5544f5 2026-04-22T01:49:11-04:00 Jonathan Moreland Profit from legal insider trading. InsiderInsights.com provides free insider trading data tools and resources, and professional grade subscription based real time Form 4 data, analysis and services AMPH: LIAWATIDEWI YAKOB (VP,DIR) Disposed (JS) 1,033 Shares of AMPHASTAR PHARMACEUTICALS INC for $18.18 on 3/15 urn:uuid:b025d87d-4846-4347-19a1-bcf94e36e96a 2026-03-17T20:17:50-04:00 AMPH: ZHOU RONG (VP) Disposed (JS) 1,225 Shares of AMPHASTAR PHARMACEUTICALS INC for $18.18 on 3/15 urn:uuid:370b4240-cf84-0d8a-a5e5-3e9e8e48ba13 2026-03-17T18:16:22-04:00 AMPH: PETERS WILLIAM J (CFO,VP,TR,DIR) Disposed (JS) 1,973 Shares of AMPHASTAR PHARMACEUTICALS INC for $18.18 on 3/15 urn:uuid:ffe5c8cf-6043-ee4f-087c-8721a33560d6 2026-03-17T18:14:22-04:00 AMPH: ZHANG JACK Y (CEO,DIR,BO) Disposed (JS) 9,784 Shares of AMPHASTAR PHARMACEUTICALS INC for $18.18 on 3/15 urn:uuid:001639e9-f2e9-e13f-bc24-9575b9492a81 2026-03-17T18:12:22-04:00 AMPH: ZHANG JACK Y (CEO,DIR,BO) Disposed (JS) 2,908 Shares of AMPHASTAR PHARMACEUTICALS INC for $18.18 on 3/15 urn:uuid:daa5cac1-2aa7-7046-f843-ad410763a63d 2026-03-17T18:12:22-04:00 AMPH: PETERS WILLIAM J (CFO,VP,TR,DIR) Acquired (JB) 58,693 Shares of AMPHASTAR PHARMACEUTICALS INC for $0.00 on 3/9 urn:uuid:87bae7f8-6b81-4848-b43a-5553b839738e 2026-03-11T21:29:26-04:00 AMPH: PETERS WILLIAM J (CFO,VP,TR,DIR) Disposed (JS) 3,297 Shares of AMPHASTAR PHARMACEUTICALS INC for $18.91 on 3/10 urn:uuid:28d8e365-d862-80bf-7e7e-30dfc16bb1e7 2026-03-11T21:29:26-04:00 AMPH: ZHOU RONG (VP) Acquired (JB) 39,432 Shares of AMPHASTAR PHARMACEUTICALS INC for $0.00 on 3/9 urn:uuid:efd0f2b0-bfa1-a18b-4770-28ddd8c2a4f8 2026-03-11T20:15:55-04:00 AMPH: ZHOU RONG (VP) Disposed (JS) 2,215 Shares of AMPHASTAR PHARMACEUTICALS INC for $18.91 on 3/10 urn:uuid:14b46507-8dda-f3cd-3c01-b748639ec8bf 2026-03-11T20:15:55-04:00 AMPH: LIAWATIDEWI YAKOB (VP,DIR) Disposed (JS) 1,870 Shares of AMPHASTAR PHARMACEUTICALS INC for $18.91 on 3/10 urn:uuid:d217b4cb-e7d1-165c-9077-eadddf8f284e 2026-03-11T18:26:27-04:00