Amphastar Pharmaceuticals, Inc. (AMPH) SEC Filings

Amphastar Pharmaceuticals, Inc. (AMPH) SEC EDGAR filings (8-K, 10-Q, DEF 14A, 10-K), newest first; latest 8-K filed 2026-08-06. Every filing links to the canonical SEC document. First-party data.

SEC filings — source: EDGAR

Filed	Form	Title
2026-08-06	8-K	8-K filed 2026-08-06 by Amphastar Pharmaceuticals, Inc.
2026-08-06	10-Q	10-Q filed 2026-08-06 by Amphastar Pharmaceuticals, Inc.
2026-07-13	8-K	8-K filed 2026-07-13 by Amphastar Pharmaceuticals, Inc.
2026-07-08	8-K	8-K filed 2026-07-08 by Amphastar Pharmaceuticals, Inc.
2026-06-03	8-K	8-K filed 2026-06-03 by Amphastar Pharmaceuticals, Inc.
2026-05-07	8-K	8-K filed 2026-05-07 by Amphastar Pharmaceuticals, Inc.
2026-05-07	10-Q	10-Q filed 2026-05-07 by Amphastar Pharmaceuticals, Inc.
2026-04-13	DEF 14A	DEF 14A filed 2026-04-13 by Amphastar Pharmaceuticals, Inc.
2026-03-16	8-K	8-K filed 2026-03-16 by Amphastar Pharmaceuticals, Inc.
2026-03-06	8-K	8-K filed 2026-03-06 by Amphastar Pharmaceuticals, Inc.
2026-03-06	8-K	8-K filed 2026-03-06 by Amphastar Pharmaceuticals, Inc.
2026-02-26	8-K	8-K filed 2026-02-26 by Amphastar Pharmaceuticals, Inc.
2026-02-26	10-K	10-K filed 2026-02-26 by Amphastar Pharmaceuticals, Inc.
2026-01-12	8-K	8-K filed 2026-01-12 by Amphastar Pharmaceuticals, Inc.
2025-11-06	8-K	8-K filed 2025-11-06 by Amphastar Pharmaceuticals, Inc.
2025-11-06	10-Q	10-Q filed 2025-11-06 by Amphastar Pharmaceuticals, Inc.
2025-10-24	8-K	8-K filed 2025-10-24 by Amphastar Pharmaceuticals, Inc.
2025-09-18	8-K	8-K filed 2025-09-18 by Amphastar Pharmaceuticals, Inc.
2025-08-12	8-K	8-K filed 2025-08-12 by Amphastar Pharmaceuticals, Inc.
2025-08-07	8-K	8-K filed 2025-08-07 by Amphastar Pharmaceuticals, Inc.
2025-08-07	10-Q	10-Q filed 2025-08-07 by Amphastar Pharmaceuticals, Inc.
2025-07-21	8-K	8-K filed 2025-07-21 by Amphastar Pharmaceuticals, Inc.
2025-06-04	8-K	8-K filed 2025-06-04 by Amphastar Pharmaceuticals, Inc.
2025-05-08	10-Q	10-Q filed 2025-05-08 by Amphastar Pharmaceuticals, Inc.
2025-05-07	8-K	8-K filed 2025-05-07 by Amphastar Pharmaceuticals, Inc.
2025-04-14	DEF 14A	DEF 14A filed 2025-04-14 by Amphastar Pharmaceuticals, Inc.
2025-03-03	10-K	10-K filed 2025-03-03 by Amphastar Pharmaceuticals, Inc.
2025-02-27	8-K	8-K filed 2025-02-27 by Amphastar Pharmaceuticals, Inc.
2024-11-07	10-Q	10-Q filed 2024-11-07 by Amphastar Pharmaceuticals, Inc.
2024-11-06	8-K	8-K filed 2024-11-06 by Amphastar Pharmaceuticals, Inc.

AMPH overview · AMPH earnings · AMPH financials · AMPH KPIs · AMPH documents · AMPH ownership · AMPH peers

Data sourced from U.S. SEC EDGAR. Not personalized investment advice.