|
⚲
|
| Keyboard |
| Zhang Jack Y
✚
|
|
|---|---|
| CIK # | 0001611157 |
| EDGAR Form | CIK | 2011 - 2026 |
|---|---|---|
| 3 | [0001611157] | |
| 4 | [0001611157] | |
| SC 13G | [0001611157] |
| Form 13D/13G Filer | Form 13D/13G Subject | Filed |
|---|---|---|
| Zhang Jack Y | Amphastar Pharmaceuticals Inc | [2015-02-12] |
| Form 3/4/5 Subject | 2011 - 2026 |
|---|---|
| Luo Mary Z | |
| Amphastar Pharmaceuticals Inc | |
| Zhang Jack Y | |
| Applied Physics & Chemistry Laboratories Inc |
| Insider Transaction (Form 3/4/5) | Date | Action | Shares | Price | Value ($) |
|---|---|---|---|---|---|
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2026-03-15 | Tax withheld | 9,784 | $18.18 | 177,873 |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2026-03-15 | Tax withheld | 2,908 | $18.18 | 52,867 |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2026-03-10 | Tax withheld | 14,785 | $18.91 | 279,584 |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2026-03-10 | Tax withheld | 4,395 | $18.91 | 83,109 |
|
Amphastar Pharmaceuticals Inc AMPH
Employee Stock Option (right to buy) · derivative
|
2026-03-09 | Grant | 372,338 | $0.00 | |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2026-03-09 | Grant | 72,462 | $0.00 | |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2026-03-09 | Grant | 180,504 | $0.00 | |
|
Amphastar Pharmaceuticals Inc AMPH
Employee Stock Option (right to buy) · derivative
|
2026-03-09 | Grant | 149,472 | $0.00 | |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2026-03-06 | Tax withheld | 3,077 | $19.34 | 59,509 |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2026-03-06 | Tax withheld | 7,773 | $19.34 | 150,330 |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2026-03-04 | Tax withheld | 5,769 | $19.96 | 115,149 |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2026-03-04 | Tax withheld | 2,432 | $19.96 | 48,543 |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2025-06-13 | Option exercise | 200,000 | $13.03 | 2,606,000 |
|
Amphastar Pharmaceuticals Inc AMPH
Employee Stock Option (right to buy) · derivative
|
2025-06-13 | Option exercise | 200,000 | $0.00 | |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2025-03-17 | Tax withheld | 7,223 | $27.69 | 200,005 |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2025-03-17 | Tax withheld | 16,150 | $27.69 | 447,194 |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2025-03-15 | Tax withheld | 4,115 | $26.66 | 109,706 |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2025-03-15 | Tax withheld | 9,765 | $26.66 | 260,335 |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2025-03-14 | Option exercise | 211,213 | $14.69 | 3,102,719 |
|
Amphastar Pharmaceuticals Inc AMPH
Common Stock
|
2025-03-14 | Tax withheld | 162,657 | $26.66 | 4,336,436 |
| showing 20 of 200 most recent transactions | |||||