Amphastar Pharmaceuticals, Inc. — DEF 14A Filings
11 DEF 14A filings on record
This page lists all DEF 14A 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 11 DEF 14A 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 |
|---|---|---|---|---|
| DEF 14A | DEF 14A | 0001297184-25-000018 | Apr 14, 2025 | Jun 2, 2025 |
| DEF 14A | DEF 14A | 0001297184-24-000019 | Apr 12, 2024 | Jun 3, 2024 |
| DEF 14A | DEF 14A | 0001297184-23-000033 | Apr 14, 2023 | — |
| DEF 14A | DEF 14A | 0001297184-22-000015 | Apr 14, 2022 | Jun 10, 2022 |
| DEF 14A | DEF 14A | 0001297184-21-000015 | Apr 14, 2021 | Jun 7, 2021 |
| DEF 14A | DEF 14A | 0001297184-20-000018 | Apr 15, 2020 | Jun 8, 2020 |
| DEF 14A | DEF 14A | 0001297184-19-000019 | Apr 18, 2019 | Jun 12, 2019 |
| DEF 14A | DEF 14A | 0001297184-18-000020 | Apr 18, 2018 | Jun 7, 2018 |
| DEF 14A | DEF 14A | 0001297184-17-000011 | Apr 21, 2017 | Jun 8, 2017 |
| DEF 14A | DEF 14A | 0001297184-16-000003 | Apr 22, 2016 | Jun 9, 2016 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001171843-15-001880 | Apr 8, 2015 | May 27, 2015 |