Significant Ownership of Jack Y. Zhang

Location
Rancho Cucamonga, CA
Summary
This page shows a list of all the recent SCHEDULE 13D/G filings made by Jack Y. Zhang.

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Significant Ownership of Jack Y. Zhang

Sym Company Class Ownership Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
AMPH Amphastar Pharmaceuticals, Inc. Common Stock 24.8% $301M 12.5M Jack Y. Zhang Dec 31, 2024

Schedules 13D/G Reported by Jack Y. Zhang:

Sym Target Class Ownership Change Current Shares Change Value Reporting name Form Report Period Date Filed
* An asterisk sign (*) next to the price indicates that the price is likely invalid.