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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001104659-22-062438
Filing Date
2022-05-18
Accepted
2022-05-18 16:06:27
Documents
1
Period of Report
2022-05-16

Document Format Files

Seq Description Document Type Size
1 OWNERSHIP DOCUMENT tm2215971-1_4seq1.html 4  
1 OWNERSHIP DOCUMENT tm2215971-1_4seq1.xml 4 13323
  Complete submission text file 0001104659-22-062438.txt   14950
Mailing Address 11570 SIXTH STREET RANCHO CUCAMONGA CA 91730
Business Address 11570 SIXTH STREET RANCHO CUCAMONGA CA 91730 909-980-9484
Amphastar Pharmaceuticals, Inc. (Issuer) CIK: 0001297184 (see all company filings)

IRS No.: 330702205 | Fiscal Year End: 1231
SIC: 2834 Pharmaceutical Preparations
Office of Life Sciences

Mailing Address 11570 6TH STREET RANCHO CUCAMONGA CA 91730
Business Address
Luo Mary Z. (Reporting) CIK: 0001611156 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-36509 | Film No.: 22939106

Mailing Address 11570 6TH STREET RANCHO CUCAMONGA CA 91730
Business Address
Zhang Jack Y. (Reporting) CIK: 0001611157 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-36509 | Film No.: 22939107