Mailing Address 11570 SIXTH STREET RANCHO CUCAMONGA CA 91730
Business Address 11570 SIXTH STREET RANCHO CUCAMONGA CA 91730 909-980-9484
Amphastar Pharmaceuticals, Inc. CIK#: 0001297184 (see all company filings)

SIC: 2834 - PHARMACEUTICAL PREPARATIONS
State location: CA | Fiscal Year End: 1231
(CF Office: 03 Life Sciences)
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Items 1 - 40  0001297184 Filings RSS Feed
Filings Format Description Filing Date File/Film Number
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-008525 Size: 8 KB
2025-03-18
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-008523 Size: 22 KB
2025-03-18
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-008500 Size: 7 KB
2025-03-18
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-008497 Size: 6 KB
2025-03-18
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-007831 Size: 8 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-007798 Size: 7 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-007791 Size: 7 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-007783 Size: 13 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-007561 Size: 6 KB
2025-03-10
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-007542 Size: 4 KB
2025-03-10
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-007503 Size: 5 KB
2025-03-10
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-007501 Size: 8 KB
2025-03-10
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-007365 Size: 5 KB
2025-03-07
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-007241 Size: 10 KB
2025-03-06
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-007204 Size: 6 KB
2025-03-06
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-007198 Size: 5 KB
2025-03-06
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-25-007188 Size: 8 KB
2025-03-06
144  Documents Report of proposed sale of securities
Acc-no: 0001973141-25-000139 (33 Act)  Size: 4 KB
2025-03-06 001-36509
25715117
144  Documents Report of proposed sale of securities
Acc-no: 0001973141-25-000127 (33 Act)  Size: 4 KB
2025-03-04 001-36509
25704320
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0001297184-25-000008 (34 Act)  Size: 17 MB
2025-03-03 001-36509
25698138
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001297184-25-000003 (34 Act)  Size: 1 MB
2025-02-27 001-36509
25679634
SCHEDULE 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0001104659-25-010636 (34 Act)  Size: 12 KB
2025-02-07 005-88204
25603266
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-24-029491 Size: 15 KB
2024-12-16
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-24-029033 Size: 10 KB
2024-12-11
144  Documents Report of proposed sale of securities
Acc-no: 0001969223-24-000892 (33 Act)  Size: 5 KB
2024-12-09 001-36509
241534330
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-24-026764 Size: 10 KB
2024-11-13
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-24-026756 Size: 10 KB
2024-11-13
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-24-026653 Size: 8 KB
2024-11-12
144  Documents Report of proposed sale of securities
Acc-no: 0001969223-24-000812 (33 Act)  Size: 5 KB
2024-11-12 001-36509
241446546
144  Documents Report of proposed sale of securities
Acc-no: 0001969223-24-000811 (33 Act)  Size: 4 KB
2024-11-12 001-36509
241446545
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-24-026480 Size: 9 KB
2024-11-08
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-24-026465 Size: 8 KB
2024-11-08
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001297184-24-000058 (34 Act)  Size: 12 MB
2024-11-07 001-36509
241436100
144  Documents Report of proposed sale of securities
Acc-no: 0001973141-24-000541 (33 Act)  Size: 4 KB
2024-11-06 001-36509
241431905
144  Documents Report of proposed sale of securities
Acc-no: 0001973141-24-000540 (33 Act)  Size: 4 KB
2024-11-06 001-36509
241431894
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001297184-24-000055 (34 Act)  Size: 947 KB
2024-11-06 001-36509
241431548
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-24-023514 Size: 10 KB
2024-09-17
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-24-023467 Size: 10 KB
2024-09-16
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001415889-24-023057 Size: 4 KB
2024-09-06
144  Documents Report of proposed sale of securities
Acc-no: 0001969223-24-000680 (33 Act)  Size: 5 KB
2024-09-05 001-36509
241281955