The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Luo Mary Z. since 2015.
This trader's CIK number is 1611156.
At the time of last reporting, Luo Mary Z. was the COO, Chief Scientist, Chairman of Amphastar Pharmaceuticals, Inc.. (stock ticker symbol AMPH).
Also see all insider trading activities at Amphastar Pharmaceuticals, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | AMPH | 0 | $0 | 0 | $0 | 701,690 | $9,975,826 |
| 2024 | AMPH | 0 | $0 | 0 | $0 | 1,232,976 | $15,808,880 |
| 2022 | AMPH | 0 | $0 | 237,871 | $8,380,670 | 0 | $0 |
| 2019 | AMPH | 0 | $0 | 0 | $0 | 739,520 | $11,713,996 |
| 2018 | AMPH | 40,000 | $642,829 | 177,492 | $3,764,419 | 506,336 | $6,087,677 |
| 2017 | AMPH | 0 | $0 | 0 | $0 | 2,481,974 | $29,350,495 |
| 2016 | AMPH | 0 | $0 | 444,199 | $9,344,316 | 444,199 | $7,441,664 |
| 2015 | AMPH | 0 | $0 | 569,635 | $9,028,293 | 460,000 | $5,966,197 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-06-13 | AMPH | Option Ex | 200,000 | 13.03 | 2,606,000 |
| 2025-03-14 | AMPH | Option Ex | 501,690 | 14.69 | 7,369,826 |
| 2024-09-13 | AMPH | Option Ex | 100,000 | 14.69 | 1,469,000 |
| 2024-06-10 | AMPH | Option Ex | 100,000 | 14.69 | 1,469,000 |
| 2024-03-15 | AMPH | Option Ex | 1,032,976 | 12.46 | 12,870,880 |
| 2022-05-20 | AMPH | Sale | 10,650 | 34.21 | 364,368 |
| 2022-05-18 | AMPH | Sale | 67,046 | 34.84 | 2,336,016 |
| 2022-05-19 | AMPH | Sale | 41,730 | 34.02 | 1,419,612 |
| 2022-05-16 | AMPH | Sale | 68,069 | 36.00 | 2,450,211 |
| 2022-05-17 | AMPH | Sale | 50,376 | 35.94 | 1,810,463 |
| 2019-03-15 | AMPH | Option Ex | 739,520 | 15.84 | 11,713,996 |
| 2018-12-14 | AMPH | Sale | 43,577 | 20.48 | 892,326 |
| 2018-12-13 | AMPH | Sale | 29,689 | 20.99 | 623,172 |
| 2018-12-12 | AMPH | Sale | 37,469 | 21.21 | 794,754 |
| 2018-12-11 | AMPH | Sale | 66,757 | 21.78 | 1,454,167 |
| 2018-07-02 | AMPH | Option Ex | 506,336 | 12.02 | 6,087,677 |
| 2018-05-15 | AMPH | Buy | 25,000 | 16.08 | 401,975 |
| 2018-05-16 | AMPH | Buy | 15,000 | 16.06 | 240,854 |
| 2017-12-15 | AMPH | Option Ex | 1,012,675 | 12.02 | 12,175,391 |
| 2017-11-13 | AMPH | Option Ex | 506,337 | 12.02 | 6,087,689 |
| 2017-09-13 | AMPH | Option Ex | 315,619 | 11.53 | 3,639,087 |
| 2017-05-23 | AMPH | Option Ex | 647,343 | 11.51 | 7,448,328 |
| 2016-09-20 | AMPH | Sale | 389,118 | 21.03 | 8,183,540 |
| 2016-09-21 | AMPH | Sale | 55,081 | 21.07 | 1,160,776 |
| 2016-09-20 | AMPH | Option Ex | 389,118 | 16.75 | 6,518,893 |
| 2016-09-21 | AMPH | Option Ex | 55,081 | 16.75 | 922,771 |
| 2015-12-09 | AMPH | Sale | 26,319 | 14.29 | 376,124 |
| 2015-12-10 | AMPH | Sale | 21,915 | 14.32 | 313,888 |
| 2015-12-11 | AMPH | Sale | 15,066 | 14.05 | 211,737 |
| 2015-12-07 | AMPH | Sale | 15,046 | 14.59 | 219,491 |
| 2015-12-04 | AMPH | Sale | 28,712 | 14.95 | 429,301 |
| 2015-12-08 | AMPH | Sale | 24,359 | 14.50 | 353,108 |
| 2015-12-01 | AMPH | Sale | 20,000 | 15.49 | 309,780 |
| 2015-12-03 | AMPH | Sale | 18,583 | 15.41 | 286,456 |
| 2015-08-17 | AMPH | Option Ex | 16,962 | 12.97 | 219,997 |
| 2015-06-15 | AMPH | Sale | 45,382 | 16.29 | 739,454 |
| 2015-06-15 | AMPH | Option Ex | 50,061 | 12.97 | 649,291 |
| 2015-06-10 | AMPH | Option Ex | 25,594 | 12.97 | 331,954 |
| 2015-06-12 | AMPH | Sale | 114,089 | 16.16 | 1,843,450 |
| 2015-06-11 | AMPH | Sale | 23,264 | 16.47 | 383,134 |
| 2015-06-12 | AMPH | Option Ex | 125,476 | 12.97 | 1,627,423 |
| 2015-06-10 | AMPH | Sale | 23,142 | 16.38 | 378,973 |
| 2015-06-11 | AMPH | Option Ex | 25,790 | 12.97 | 334,496 |
| 2015-06-05 | AMPH | Option Ex | 99,142 | 12.97 | 1,285,871 |
| 2015-06-05 | AMPH | Sale | 88,138 | 16.46 | 1,451,192 |
| 2015-06-08 | AMPH | Option Ex | 60,218 | 12.97 | 781,027 |
| 2015-06-09 | AMPH | Option Ex | 56,757 | 12.97 | 736,138 |
| 2015-06-08 | AMPH | Sale | 54,120 | 16.61 | 898,987 |
| 2015-06-09 | AMPH | Sale | 51,500 | 16.18 | 833,218 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Luo Mary Z. (COO, Chief Scientist, Chairman of Amphastar Pharmaceuticals, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.