212 filings
Page 2 of 11
ARS
hdp1 qjp1u6e
14 Apr 23
Annual report to shareholders
4:21pm
DEFA14A
urv qeddcye
14 Apr 23
Additional proxy soliciting materials
4:17pm
8-K
53mn7jh
10 Mar 23
Entry into a Material Definitive Agreement
4:08pm
S-8
c0z6umw0c1izkyw6xb
1 Mar 23
Registration of securities for employees
4:26pm
8-K
teuz8yswsel8 i5
28 Feb 23
Amphastar Pharmaceuticals Reports Financial Results for the Three Months and Full-Year Ended December 31, 2022
4:21pm
8-K
8iqto irs0aneq
24 Feb 23
Amendments to Articles of Incorporation or Bylaws
4:20pm
8-K
2bvvgnhb4 g7de
18 Nov 22
Entry into a Material Definitive Agreement
4:17pm
8-K
nbu ej3isx4hh63z7v5
7 Nov 22
Amphastar Pharmaceuticals Reports Financial Results for the Three Months Ended September 30, 2022
4:20pm
8-K
q90y3h mprj7y
9 Aug 22
Departure of Directors or Certain Officers
12:00am
8-K
0r5s 267rrf50
8 Aug 22
Amphastar Pharmaceuticals Reports Financial Results for the Three Months Ended June 30, 2022
4:23pm
8-K
lkyui1mtwpeelq ezx6w
8 Jul 22
Entry into a Material Definitive Agreement
4:25pm
8-K
7htgnk6hye3ytjvn9
13 Jun 22
Submission of Matters to a Vote of Security Holders
4:17pm
8-K
0zfudp
9 May 22
Amphastar Pharmaceuticals Reports Financial Results for the Three Months Ended March 31, 2022
4:22pm
8-K
3811sskmo
22 Apr 22
Entry into a Material Definitive Agreement
4:13pm
DEFA14A
i81bcpqnbg2s8iy2hsds
14 Apr 22
Additional proxy soliciting materials
4:31pm