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  • Insider Ownership

Insider Trading & Ownership of Rong Zhou

Location
Rancho Cucamonga, CA
Summary
The estimated net worth of Rong Zhou is at least $3,754,610 dollars as of 18 Dec 2025. Rong Zhou is the SENIOR EVP, PRODUCTION CENTER of Amphastar Pharmaceuticals, Inc. and owns shares of Amphastar Pharmaceuticals, Inc. (AMPH) stock worth about $3.75M.
Signature
/s/ Eva Wen, by power of attorney
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Ownership of Rong Zhou

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
AMPH Amphastar Pharmaceuticals, Inc. Senior Evp, Production Center $3,754,610 -$256,379 -6.4% 17 Dec 2025

Insider Transactions Reported by Rong Zhou:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.