Amphastar Pharmaceuticals, Inc.
AMPHNasdaqCIK 1297184HealthcareFiscal year ends Dec 31
Reports and events: 170 filings
Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.
What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.
| Filed | Form | What it is | Accession number |
|---|---|---|---|
| 2026-08-0616:50 ET | 10-Q | Quarterly reportPeriod 2026-06-30 | 0001297184-26-000047 |
| 2026-08-0616:32 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001297184-26-000045 |
| 2026-07-1306:01 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001104659-26-082772 |
| 2026-07-0820:03 ET | 8-K | 8.01 Other events | 0001297184-26-000041 |
| 2026-06-0316:15 ET | 8-K | 5.07 Shareholder vote results | 0001297184-26-000038 |
| 2026-05-0716:48 ET | 10-Q | Quarterly reportPeriod 2026-03-31 | 0001297184-26-000033 |
| 2026-05-0716:22 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001297184-26-000031 |
| 2026-04-1316:18 ET | DEF 14A | Proxy statementPeriod 2026-06-01 | 0001297184-26-000023 |
| 2026-03-1606:00 ET | 8-K | 8.01 Other events | 0001104659-26-027814 |
| 2026-03-0616:17 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001297184-26-000015 |
| 2026-03-0616:12 ET | 8-K | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001297184-26-000013 |
| 2026-02-2616:41 ET | 10-K | Annual reportPeriod 2025-12-31 | 0001297184-26-000009 |
| 2026-02-2616:24 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001297184-26-000007 |
| 2026-01-1217:15 ET | 8-K | 1.01 Entry into a material agreement; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001297184-26-000002 |
| 2025-11-0616:38 ET | 10-Q | Quarterly reportPeriod 2025-09-30 | 0001297184-25-000064 |
| 2025-11-0616:25 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001297184-25-000062 |
| 2025-10-2416:21 ET | 8-K | 1.01 Entry into a material agreement | 0001297184-25-000058 |
| 2025-09-1816:46 ET | 8-K | 1.01 Entry into a material agreement | 0001297184-25-000054 |
| 2025-08-1206:10 ET | 8-K | 1.01 Entry into a material agreement; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001558370-25-011134 |
| 2025-08-0716:43 ET | 10-Q | Quarterly reportPeriod 2025-06-30 | 0001297184-25-000050 |
| 2025-08-0716:31 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001297184-25-000048 |
| 2025-07-2116:14 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001297184-25-000040 |
| 2025-06-0420:46 ET | 8-K | 5.03 Amendment to articles or bylaws; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001297184-25-000036 |
| 2025-05-0816:24 ET | 10-Q | Quarterly reportPeriod 2025-03-31 | 0001297184-25-000029 |
| 2025-05-0716:23 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001297184-25-000025 |
| 2025-04-1416:07 ET | DEF 14A | Proxy statementPeriod 2025-06-02 | 0001297184-25-000018 |
| 2025-03-0316:16 ET | 10-K | Annual reportPeriod 2024-12-31 | 0001297184-25-000008 |
| 2025-02-2716:33 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001297184-25-000003 |
| 2024-11-0716:18 ET | 10-Q | Quarterly reportPeriod 2024-09-30 | 0001297184-24-000058 |
| 2024-11-0616:31 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001297184-24-000055 |
| 2024-08-3016:14 ET | 8-K | 1.01 Entry into a material agreement | 0001297184-24-000051 |
| 2024-08-0916:15 ET | 10-Q | Quarterly reportPeriod 2024-06-30 | 0001297184-24-000048 |
| 2024-08-0716:22 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001297184-24-000045 |
| 2024-06-0416:14 ET | 8-K | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 8.01 Other events; 9.01 Financial statements and exhibits | 0001297184-24-000042 |
| 2024-05-1017:50 ET | 10-Q | Quarterly reportPeriod 2024-03-31 | 0001297184-24-000037 |
| 2024-05-0816:18 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001297184-24-000033 |
| 2024-04-1216:08 ET | DEF 14A | Proxy statementPeriod 2024-06-03 | 0001297184-24-000019 |
| 2024-02-2916:12 ET | 10-K | Annual reportPeriod 2023-12-31 | 0001297184-24-000009 |
| 2024-02-2816:38 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001297184-24-000004 |
| 2023-11-0816:24 ET | 10-Q | Quarterly reportPeriod 2023-09-30 | 0001297184-23-000082 |
| 2023-11-0816:14 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001297184-23-000079 |
| 2023-09-1516:11 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 8.01 Other events; 9.01 Financial statements and exhibits | 0001297184-23-000074 |
| 2023-08-1617:24 ET | 8-K/A | 9.01 Financial statements and exhibits | 0001297184-23-000070 |
| 2023-08-0918:18 ET | 10-Q | Quarterly reportPeriod 2023-06-30 | 0001297184-23-000066 |
| 2023-08-0816:17 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001297184-23-000063 |
| 2023-06-3016:21 ET | 8-K | 1.01 Entry into a material agreement; 2.01 Completion of an acquisition or disposition; 2.03 New direct financial obligation; 8.01 Other events; 9.01 Financial statements and exhibits | 0001297184-23-000057 |
| 2023-06-0618:32 ET | 8-K | 5.07 Shareholder vote results | 0001297184-23-000053 |
| 2023-05-0916:54 ET | 10-Q | Quarterly reportPeriod 2023-03-31 | 0001297184-23-000049 |
| 2023-05-0916:19 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001297184-23-000046 |
| 2023-04-2407:17 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 8.01 Other events; 9.01 Financial statements and exhibits | 0001558370-23-006469 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:10 ET. Listed shows no prices and gives no investment advice.