Insider · CIK 0002075974

Gaugh David Russell

Reports to the SEC for 1 company · RANCHO CUCAMONGA, CA

Transactions

Companies

Filings

CIK

0002075974

Forms 4 and 5

Insider transactions

4 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-06-01	AMPHAmphastar Pharmaceuticals, Inc.A Award	Director	AAward	+8,143 sh	—	—	14,447
2026-06-01	AMPHAmphastar Pharmaceuticals, Inc. · Stock Option (right to buy)A Award	Director	AAward	+17.4K sh	—	—	17,365
2025-07-18	AMPHAmphastar Pharmaceuticals, Inc.A Award	Director	AAward	+6,304 sh	—	—	6,304
2025-07-18	AMPHAmphastar Pharmaceuticals, Inc. · Stock Option (right to buy)A Award	Director	AAward	+14K sh	—	—	13,987

C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET

RANCHO CUCAMONGA, CA, 91730