CIK 0001297184 · Large accelerated filer
Amphastar Pharmaceuticals, Inc.
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- AMPH
- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- FY end
- Dec 31
- Entity type
- operating
- EIN
- 330702205
- Phone
- 909-980-9484
- Business address
- 11570 SIXTH STREET, RANCHO CUCAMONGA, CA, 91730
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $1,232,854
- in 4 filings, $918K under 10b5-1 plans
Net −$1,232,854. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2024-06-03 | ZASLOFF MICHAEL A Director | Grant or award | +3,076 | 24,402 | ||
| 2024-06-03 | ZASLOFF MICHAEL A Director | Grant or award · Stock Option (right to buy) | +6,864 | 6,864 | ||
| 2024-05-19 | PETERS WILLIAM J CFO, EVP & TREASURER | Shares withheld for taxes | −387 | $43.48 | $17K | 97,268 |
| 2024-05-01 | Petersen Floyd F. Director | Sale 10b5-1 | −500 | $41.67 | $21K | 78,833 |
| 2024-04-01 | Petersen Floyd F. Director | Sale 10b5-1 | −500 | $43.43 | $22K | 79,333 |
| 2024-03-17 | Liawatidewi Yakob EVP CORP ADMIN CENTER | Shares withheld for taxes | −1,726 | $43.05 | $74K | 74,778 |
| 2024-03-17 | Zhou Rong SENIOR EVP, PRODUCTION CENTER | Shares withheld for taxes | −1,961 | $43.05 | $84K | 118,016 |
| 2024-03-17 | PETERS WILLIAM J CFO, EVP & TREASURER | Shares withheld for taxes | −4,255 | $43.05 | $183K | 97,655 |
| 2024-03-17 | Zhang Jack Y. CEO & Chief Scientific Officer | Shares withheld for taxes | −15,768 | $43.05 | $679K | 2,433,554 |
| 2024-03-17 | Zhang Jack Y. CEO & Chief Scientific Officer | Shares withheld for taxes | −7,052 | $43.05 | $304K | 1,229,756 |
| 2024-03-16 | Liawatidewi Yakob EVP CORP ADMIN CENTER | Shares withheld for taxes | −1,671 | $43.05 | $72K | 76,504 |
| 2024-03-16 | Zhou Rong SENIOR EVP, PRODUCTION CENTER | Shares withheld for taxes | −2,355 | $43.05 | $101K | 119,977 |
| 2024-03-16 | PETERS WILLIAM J CFO, EVP & TREASURER | Shares withheld for taxes | −5,105 | $43.05 | $220K | 101,910 |
| 2024-03-15 | Liawatidewi Yakob EVP CORP ADMIN CENTER | Shares withheld for taxes | −1,027 | $43.05 | $44K | 78,175 |
| 2024-03-15 | Zhou Rong SENIOR EVP, PRODUCTION CENTER | Shares withheld for taxes | −1,219 | $43.05 | $52K | 122,332 |
| 2024-03-15 | PETERS WILLIAM J CFO, EVP & TREASURER | Shares withheld for taxes | −2,285 | $43.05 | $98K | 107,015 |
| 2024-03-15 | Zhang Jack Y. CEO & Chief Scientific Officer | Option exercise | +722,046 | $12.46 | $9.0M | 2,858,043 |
| 2024-03-15 | Zhang Jack Y. CEO & Chief Scientific Officer | Shares withheld for taxes | −408,721 | $43.05 | $17.6M | 2,449,322 |
| 2024-03-15 | Zhang Jack Y. CEO & Chief Scientific Officer | Option exercise | +310,930 | $12.46 | $3.9M | 1,439,466 |
| 2024-03-15 | Zhang Jack Y. CEO & Chief Scientific Officer | Shares withheld for taxes | −202,658 | $43.05 | $8.7M | 1,236,808 |
Page 11 of 81 · 1,602 trades