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 |
|---|---|---|---|---|---|---|
| 2023-05-19 | PETERS WILLIAM J CFO, EVP & Treasurer | Shares withheld for taxes 10b5-1 | −378 | $44.16 | $17K | 104,770 |
| 2023-05-18 | PETERS WILLIAM J CFO, EVP & Treasurer | Option exercise 10b5-1 | +10,500 | $13.35 | $140K | 115,648 |
| 2023-05-18 | PETERS WILLIAM J CFO, EVP & Treasurer | Sale 10b5-1 | −10,500 | $44.35 | $466K | 105,148 |
| 2023-05-18 | PETERS WILLIAM J CFO, EVP & Treasurer | Option exercise · Employee Stock Option (right to buy) 10b5-1 | −10,500 | 18,490 | ||
| 2023-05-18 | Zhou Rong EVP, Production Center | Option exercise | +10,000 | $14.40 | $144K | 97,598 |
| 2023-05-18 | Zhou Rong EVP, Production Center | Sale | −10,000 | $44.21 | $442K | 87,598 |
| 2023-05-18 | Zhou Rong EVP, Production Center | Option exercise · Employee Stock Option (right to buy) | −10,000 | 22,891 | ||
| 2023-05-18 | Deflin Gayle Director | Sale | −4,519 | $44.01 | $199K | 4,163 |
| 2023-05-17 | Petersen Floyd F. Director | Sale | −5,000 | $43.13 | $216K | 80,117 |
| 2023-05-15 | Deflin Gayle Director | Sale | −1,500 | $43.15 | $65K | 8,682 |
| 2023-05-15 | ZASLOFF MICHAEL A Director | Sale | −7,500 | $42.18 | $316K | 43,869 |
| 2023-05-15 | PRINS RICHARD K Director | Option exercise | +5,000 | $16.69 | $83K | 49,342 |
| 2023-05-15 | PRINS RICHARD K Director | Sale | −5,000 | $43.50 | $218K | 44,342 |
| 2023-05-15 | PRINS RICHARD K Director | Option exercise · Stock option (right to buy) | −5,000 | 6,679 | ||
| 2023-05-12 | PRINS RICHARD K Director | Option exercise | +5,000 | $16.69 | $83K | 52,342 |
| 2023-05-12 | PRINS RICHARD K Director | Sale | −5,000 | $42.06 | $210K | 47,342 |
| 2023-05-12 | PRINS RICHARD K Director | Gift | −3,000 | 44,342 | ||
| 2023-05-12 | PRINS RICHARD K Director | Option exercise · Stock option (right to buy) | −5,000 | 11.68 | ||
| 2023-04-17 | PETERS WILLIAM J CFO, EVP & Treasurer | Option exercise 10b5-1 | +5,632 | $13.35 | $75K | 110,780 |
| 2023-04-17 | PETERS WILLIAM J CFO, EVP & Treasurer | Sale 10b5-1 | −5,632 | $42.35 | $239K | 105,148 |
Page 18 of 81 · 1,602 trades