SEC Form 4 · accession 0001104659-18-019048
Amphastar Pharmaceuticals, Inc. · AMPH
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Rong Zhou
Officer — EVP, Production Center
Period of report
Mar 16, 2018
Accepted (ET)
Mar 20, 2018 · 8:06 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001297184
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1 | Mar 16, 2018 | F | 1,128 | $19.91 | D | 55,938 | D | |
| Common StockF1 | Mar 17, 2018 | F | 969 | $19.91 | D | 54,969 | D | |
| Common StockF2 | holding | — | — | — | 99,668 | I | See footnote | |
| Common StockF3 | holding | — | — | — | 5,000 | I | See footnote |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The reported shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs.
- F2The shares are held of record by the Zhou Family Trust for which the reporting person serves as a trustee.
- F3The shares are held of record by the reporting person's spouse.