Amphastar Pharmaceuticals, Inc. — 4 Filings
564 4 filings on record
This page lists all 4 filings submitted to the SEC by Amphastar Pharmaceuticals, Inc. (AMPH), sorted by most recent first. Each row links to the full filing on EdgarLookup. Amphastar Pharmaceuticals, Inc. has filed 564 4 documents with the SEC since 2005. To view all SEC filings by Amphastar Pharmaceuticals, Inc., see the full filings list.
All
10-K
10-Q
144
3
3/A
4
4/A
424B4
8-A12B
8-K
8-K/A
ARS
CERTNAS
CORRESP
CT ORDER
DEF 14A
DEFA14A
DRS
DRS/A
DRSLTR
EFFECT
FWP
PRE 14A
REGDEX
RW
S-1
S-1/A
S-1MEF
S-3
S-8
SC 13G
SC 13G/A
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4 | — | 0001415889-25-007204 | Mar 6, 2025 | Mar 4, 2025 |
| 4 | — | 0001415889-25-007241 | Mar 6, 2025 | Mar 4, 2025 |
| 4 | — | 0001415889-25-007188 | Mar 6, 2025 | Mar 4, 2025 |
| 4 | — | 0001415889-24-029491 | Dec 16, 2024 | Dec 12, 2024 |
| 4 | — | 0001415889-24-029033 | Dec 11, 2024 | Dec 9, 2024 |
| 4 | — | 0001415889-24-026764 | Nov 13, 2024 | Nov 12, 2024 |
| 4 | — | 0001415889-24-026756 | Nov 13, 2024 | Nov 12, 2024 |
| 4 | — | 0001415889-24-026653 | Nov 12, 2024 | Nov 11, 2024 |
| 4 | — | 0001415889-24-026465 | Nov 8, 2024 | Nov 6, 2024 |
| 4 | — | 0001415889-24-026480 | Nov 8, 2024 | Nov 6, 2024 |
| 4 | — | 0001415889-24-023514 | Sep 17, 2024 | Sep 13, 2024 |
| 4 | — | 0001415889-24-023467 | Sep 16, 2024 | Sep 13, 2024 |
| 4 | — | 0001415889-24-023057 | Sep 6, 2024 | Sep 5, 2024 |
| 4 | — | 0001415889-24-022373 | Aug 27, 2024 | Aug 26, 2024 |
| 4 | — | 0001415889-24-021242 | Aug 13, 2024 | Aug 12, 2024 |
| 4 | — | 0001415889-24-020626 | Aug 2, 2024 | Jul 31, 2024 |
| 4 | — | 0001415889-24-018417 | Jun 28, 2024 | Jun 27, 2024 |
| 4 | — | 0001415889-24-016427 | Jun 11, 2024 | Jun 10, 2024 |
| 4 | — | 0001415889-24-016425 | Jun 11, 2024 | Jun 10, 2024 |
| 4 | — | 0001415889-24-015656 | Jun 5, 2024 | Jun 3, 2024 |
| 4 | — | 0001415889-24-015629 | Jun 5, 2024 | Jun 3, 2024 |
| 4 | — | 0001415889-24-015660 | Jun 5, 2024 | Jun 3, 2024 |
| 4 | — | 0001415889-24-015633 | Jun 5, 2024 | Jun 3, 2024 |
| 4 | — | 0001415889-24-015637 | Jun 5, 2024 | Jun 4, 2024 |
| 4 | — | 0001415889-24-015689 | Jun 5, 2024 | Jun 3, 2024 |
| 4 | — | 0001415889-24-015652 | Jun 5, 2024 | Jun 3, 2024 |
| 4 | — | 0001415889-24-014009 | May 21, 2024 | May 19, 2024 |
| 4 | — | 0001415889-24-012014 | May 2, 2024 | May 1, 2024 |
| 4 | — | 0001415889-24-009894 | Apr 2, 2024 | Apr 1, 2024 |
| 4 | — | 0001415889-24-008600 | Mar 19, 2024 | Mar 15, 2024 |
| 4 | — | 0001415889-24-008604 | Mar 19, 2024 | Mar 15, 2024 |
| 4 | — | 0001415889-24-008592 | Mar 19, 2024 | Mar 15, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-036270 | Mar 19, 2024 | Mar 15, 2024 |
| 4 | — | 0001415889-24-007362 | Mar 8, 2024 | Mar 6, 2024 |
| 4 | — | 0001415889-24-007367 | Mar 8, 2024 | Mar 6, 2024 |
| 4 | — | 0001415889-24-007359 | Mar 8, 2024 | Mar 6, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-032430 | Mar 8, 2024 | Mar 6, 2024 |
| 4 | — | 0001415889-24-007091 | Mar 6, 2024 | Mar 4, 2024 |
| 4 | — | 0001415889-24-007087 | Mar 6, 2024 | Mar 4, 2024 |
| 4 | — | 0001415889-24-007093 | Mar 6, 2024 | Mar 5, 2024 |
| 4 | — | 0001415889-24-007106 | Mar 6, 2024 | Mar 4, 2024 |
| 4 | — | 0001415889-24-007089 | Mar 6, 2024 | Mar 4, 2024 |
| 4 | — | 0001415889-24-006440 | Mar 4, 2024 | Mar 1, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-010255 | Feb 2, 2024 | Feb 1, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-003330 | Jan 11, 2024 | Jan 10, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-003050 | Jan 10, 2024 | Jan 8, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-001016 | Jan 3, 2024 | Jan 2, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-23-123689 | Dec 5, 2023 | Dec 1, 2023 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-23-123377 | Dec 4, 2023 | Dec 1, 2023 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-23-119974 | Nov 20, 2023 | Nov 17, 2023 |