Gerst Diane G. 4
4 · Amphastar Pharmaceuticals, Inc. · Filed Jun 3, 2026
Research Summary
AI-generated summary of this filing
Amphastar (AMPH) Director Diane Gerst Receives RSU Award
What Happened Diane G. Gerst, a director of Amphastar Pharmaceuticals (AMPH), received equity awards on June 1, 2026: 8,143 restricted stock units (RSUs) and 17,365 derivative equity awards (total 25,508 shares). Both items were reported as granted at $0.00 per share (common for awards), with no immediate cash paid by the insider.
Key Details
- Transaction date: 2026-06-01; Form 4 filed 2026-06-03 (appears timely).
- Grant types/codes: A = award/grant; 8,143 RSUs (F1) and 17,365 derivative awards (F2).
- Price reported: $0.00 per share; total reported acquisition value = $0.
- Vesting: Footnote F1 states the RSUs vest on June 1, 2027. Footnote F2 indicates the derivative/option-related shares also vest on June 1, 2027.
- Shares owned after transaction: Not specified in the provided filing.
Context This was a compensation award to a company director, not an open-market purchase or sale. RSU and other grant awards vest in the future (here, one year), so they do not represent immediately tradable shares. Such awards are routine for director compensation and do not, by themselves, indicate buying or selling sentiment.
Insider Transaction Report
- Award
Common Stock
[F1]2026-06-01+8,143→ 31,899 total - Award
Stock Option (right to buy)
[F2]2026-06-01+17,365→ 17,365 totalExercise: $18.42Exp: 2036-06-01→ Common Stock (17,365 underlying)
Footnotes (2)
- [F1]The reported shares are represented by restricted stock units, or RSUs, all of which vest on June 1, 2027.
- [F2]All of the shares subject to the option vest on June 1, 2027.