Disclosure 0001263136-26-000014-1

SEC FORM 4

$103,475.00

Amphastar Pharmaceuticals, Inc. (AMPH)

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 →

Composed from the Form 4 as filed with the SEC. Share counts, prices and dates are the filing's own; the disclosure lag is counted in business days from the transaction date to the filing date. What is a Form 4?

Cite this card

Desq Long. "Amphastar Pharmaceuticals, Inc. (AMPH)." Disclosed 2026-09-23. https://desqlong.com/cards/0001263136-26-000014-1 (retrieved 2026-09-26).