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Amphastar Pharmaceuticals, Inc.

AMPH NASDAQ CIK: 0001297184 Pharmaceutical Preparations
View on SEC.gov →
Overview All Filings Annual Quarterly Insiders

Recent Filings

All 924 filings →
Form Description Date
SCHEDULE 13G/A Mar 26, 2026
4 Mar 17, 2026
4 Mar 17, 2026
4 Mar 17, 2026
4 Mar 17, 2026
8-K 8-K Mar 16, 2026
4 Mar 11, 2026
4 Mar 11, 2026
4 Mar 11, 2026
4 Mar 11, 2026

Insider Transactions

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Insider Title Type Shares Owns After Date
Zhou Rong SENIOR EVP, PRODUCTION CENTER Sale 9,787 @ $26.20 138,043 Dec 17, 2025
Petersen Floyd F. Sale 2,426 @ $25.92 71,368 Dec 11, 2025
Petersen Floyd F. Sale 500 @ $25.27 75,531 Nov 3, 2025
Petersen Floyd F. Sale 500 @ $27.20 76,031 Oct 1, 2025
Petersen Floyd F. Sale 500 @ $30.98 76,531 Sep 2, 2025
Petersen Floyd F. Sale 500 @ $20.83 77,031 Aug 1, 2025
Gaugh David Russell Award / Grant 6,304 6,304 Jul 18, 2025
Petersen Floyd F. Sale 500 @ $23.47 77,531 Jul 2, 2025
Lee Howard Award / Grant 5,122 152,899 Jun 3, 2025
Deflin Gayle Award / Grant 5,122 10,914 Jun 2, 2025