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Zhang Jack Y.
InsiderCIK 0001611157
Largest Purchase
No open-market purchases in the recent filings.
Profile
- Filings
- 2
- Buy transactions
- 0
- Sell transactions
- 0
- Companies
- 1
- Active
- 2026
Across 2 filings between 2026, Zhang Jack Y. has disclosed $394.4K in transactions — all concentrated in Amphastar Pharmaceuticals, Inc. (AMPH). Data is sourced from official SEC Form 3, 4, and 5 filings.
Associated Companies
Trading History
2 loaded
| Mar 17 | AMPH Amphastar Pharmaceuticals, Inc. | Zhang Jack Y. | Insider | Tax withheld | $230.7K |
| Mar 6 | AMPH Amphastar Pharmaceuticals, Inc. | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | Tax withheld | $163.7K |
2 filings