Legal Insider Trading Data | Free and Professional Subscription Services | Insider Insights urn:uuid:44dc5070-ddad-005f-702e-d63c7b5544f5 2026-06-09T08:23:34-04:00 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: PRINS RICHARD K (DIR) Acquired (JB) 8,143 Shares of AMPHASTAR PHARMACEUTICALS INC for $0.00 on 6/1 urn:uuid:e4ec0d14-65e8-474a-c72b-005da7b8cd27 2026-06-03T21:22:11-04:00 AMPH: PRINS RICHARD K (DIR) Disposed (JS) 1,500 Shares of AMPHASTAR PHARMACEUTICALS INC for $0.00 on 8/19 urn:uuid:b7ffd222-7fc5-9128-90d4-cb29dd59fff1 2026-06-03T21:22:11-04:00 AMPH: LEE HOWARD (DIR) Acquired (JB) 8,143 Shares of AMPHASTAR PHARMACEUTICALS INC for $0.00 on 6/1 urn:uuid:3cd53449-7fc7-fea4-3928-ee23b3f060aa 2026-06-03T21:20:03-04:00 AMPH: LEE HOWARD (DIR) Disposed (JS) 769 Shares of AMPHASTAR PHARMACEUTICALS INC for $18.45 on 6/2 urn:uuid:b4a009cb-cefe-6a97-9261-85ae76ec71ca 2026-06-03T21:20:03-04:00 AMPH: ZASLOFF MICHAEL A (DIR) Acquired (JB) 8,143 Shares of AMPHASTAR PHARMACEUTICALS INC for $0.00 on 6/1 urn:uuid:23c0cbde-1185-bde5-d974-be805bd3d637 2026-06-03T20:34:15-04:00 AMPH: GERST DIANE G (DIR) Acquired (JB) 8,143 Shares of AMPHASTAR PHARMACEUTICALS INC for $0.00 on 6/1 urn:uuid:4c016fb8-9a0b-39c9-0176-5418f573f495 2026-06-03T20:33:00-04:00 AMPH: GAUGH DAVID RUSSELL (DIR) Acquired (JB) 8,143 Shares of AMPHASTAR PHARMACEUTICALS INC for $0.00 on 6/1 urn:uuid:cfaf7f10-5101-5935-6cc4-8dd7820b3aa8 2026-06-03T20:31:10-04:00 AMPH: DEFLIN GAYLE (DIR) Acquired (JB) 8,143 Shares of AMPHASTAR PHARMACEUTICALS INC for $0.00 on 6/1 urn:uuid:6209e907-98ad-6ee1-2450-3be61c178e3b 2026-06-03T20:29:39-04:00 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