SEC Form 4/A · accession 0001104659-19-012641
Amphastar Pharmaceuticals, Inc. · AMPH
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
This is an amendment (Form 4/A). It replaces an earlier filing for the same period.
Reporting owner
Rong Zhou
Officer — EVP, Production Center
Period of report
Feb 5, 2019
Accepted (ET)
Mar 4, 2019 · 8:43 pm EST
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001297184
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Employee Stock Option (right to buy)F2,F1 | $20.26 | Feb 5, 2019 | M | 3,200 | D | — | Aug 5, 2019 | Common Stock | 3,200 | 9,600 | D |
Explanation of responses
- F1Shares subject to the option are fully vested and immediately exercisable.
- F2This amendment on Form 4/A is filed to update the amount of derivative securities beneficially owned following the transaction previously reported as 12,800.