Company
Amphastar Pharmaceuticals, Inc.
AMPH · CIK 0001297184
Sale of 4,139 shares at $25 per share.
Reporting Person PETERS WILLIAM J · Officer Title CFO, EVP & TREASURER · Transaction Code S
Traded Sep 21, 2026 · Disclosed Sep 23, 2026
Source: SEC Form 4 · 0001263136-26-000014 · filed 2026-09-23 · View filing →
Acquisition (code M) of 10,000 shares at $13.35 per share.
Reporting Person Zhou Rong · Officer Title SENIOR EVP, PRODUCTION CENTER · Transaction Code M
Traded Sep 16, 2026 · Disclosed Sep 17, 2026
Source: SEC Form 4 · 0001645326-26-000014 · filed 2026-09-17 · View filing →
Sale of 10,000 shares at $23.9404 per share.
Reporting Person Zhou Rong · Officer Title SENIOR EVP, PRODUCTION CENTER · Transaction Code S
Traded Sep 16, 2026 · Disclosed Sep 17, 2026
Source: SEC Form 4 · 0001645326-26-000014 · filed 2026-09-17 · View filing →
Sale of 3,187 shares at $23.6291 per share.
Reporting Person Zhou Rong · Officer Title SENIOR EVP, PRODUCTION CENTER · Transaction Code S
Traded Sep 2, 2026 · Disclosed Sep 3, 2026
Source: SEC Form 4 · 0001645326-26-000012 · filed 2026-09-03 · View filing →
Sale of 7,973 shares at $20.30 per share.
Reporting Person PRINS RICHARD K · Transaction Code S
Traded Aug 11, 2026 · Disclosed Aug 12, 2026
Source: SEC Form 4 · 0001047579-26-000005 · filed 2026-08-12 · View filing →