Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Amphastar Pharmaceuticals, Inc. (AMPH) since 2015 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Amphastar Pharmaceuticals, Inc.. (See page 1 of this report.) Table 2 shows the detailed insider transactions. This company's CIK number is 1297184.
Total stock buying since 2015: $663,089.
Total stock sales since 2015: $141,577,042.
Total stock option exercises since 2015: $122,096,970.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 0 | $0 | 8,231 | $221,210 | 709,180 | $10,075,817 |
| 2024 | 0 | $0 | 478,334 | $26,170,738 | 1,323,218 | $17,236,071 |
| 2023 | 0 | $0 | 372,394 | $18,304,754 | 336,159 | $5,499,331 |
| 2022 | 0 | $0 | 517,814 | $17,247,968 | 262,675 | $4,008,230 |
| 2021 | 0 | $0 | 483,856 | $9,511,266 | 250,377 | $3,597,988 |
| 2020 | 1,000 | $20,260 | 387,708 | $7,334,789 | 346,975 | $4,889,664 |
| 2019 | 0 | $0 | 523,458 | $11,135,018 | 882,731 | $13,662,463 |
| 2018 | 40,000 | $642,829 | 761,490 | $15,868,438 | 875,137 | $11,070,247 |
| 2017 | 0 | $0 | 262,119 | $4,727,217 | 2,714,478 | $31,859,283 |
| 2016 | 0 | $0 | 804,525 | $16,011,135 | 753,011 | $11,420,466 |
| 2015 | 0 | $0 | 977,046 | $15,044,509 | 691,800 | $8,777,410 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2017-10-19 | Shohet Stephen B. (Director) | Sale | 7,862 | 18.34 | 144,196 |
| 2017-10-19 | Shohet Stephen B. (Director) | Option Ex | 7,862 | 10.77 | 84,673 |
| 2017-10-17 | Gerst Diane G. (EVP, QA & Regulatory Affairs) | Sale | 523 | 18.48 | 9,665 |
| 2017-10-13 | Peters William J (CFO, SVP & Treasurer) | Sale | 3,026 | 18.57 | 56,177 |
| 2017-10-12 | Shohet Stephen B. (Director) | Sale | 7,862 | 18.73 | 147,215 |
| 2017-10-12 | Shohet Stephen B. (Director) | Option Ex | 7,862 | 10.77 | 84,673 |
| 2017-10-05 | Gerst Diane G. (EVP, QA & Regulatory Affairs) | Sale | 8,444 | 18.88 | 159,380 |
| 2017-10-05 | Gerst Diane G. (EVP, QA & Regulatory Affairs) | Option Ex | 8,444 | 11.33 | 95,670 |
| 2017-10-04 | Petersen Floyd F. (Director) | Sale | 39,312 | 18.59 | 730,770 |
| 2017-10-04 | Petersen Floyd F. (Director) | Option Ex | 39,312 | 10.77 | 423,390 |
| 2017-10-02 | Zasloff Michael A (Director) | Sale | 63,624 | 18.18 | 1,156,938 |
| 2017-10-02 | Zasloff Michael A (Director) | Option Ex | 63,624 | 10.77 | 685,230 |
| 2017-09-13 | Luo Mary Z. (COO,Chief Scientist & Chairman) | Option Ex | 315,619 | 11.53 | 3,639,087 |
| 2017-08-15 | Prins Richard K (Director) | Sale | 5,000 | 14.82 | 74,085 |
| 2017-08-15 | Prins Richard K (Director) | Option Ex | 5,000 | 10.77 | 53,850 |
| 2017-08-14 | Prins Richard K (Director) | Sale | 5,000 | 14.80 | 73,995 |
| 2017-08-14 | Prins Richard K (Director) | Option Ex | 5,000 | 10.77 | 53,850 |
| 2017-06-09 | Prins Richard K (Director) | Sale | 10,000 | 17.07 | 170,710 |
| 2017-06-09 | Prins Richard K (Director) | Option Ex | 10,000 | 10.77 | 107,700 |
| 2017-06-01 | Zasloff Michael A (Director) | Sale | 15,000 | 17.01 | 255,195 |
| 2017-06-01 | Zasloff Michael A (Director) | Option Ex | 15,000 | 10.77 | 161,550 |
| 2017-05-31 | Shandell Jason B. (President and General Counsel) | Sale | 3,654 | 17.26 | 63,071 |
| 2017-05-30 | Shandell Jason B. (President and General Counsel) | Sale | 7,828 | 16.76 | 131,228 |
| 2017-05-30 | Peters William J (CFO, SVP & Treasurer) | Sale | 4,297 | 16.93 | 72,731 |
| 2017-05-23 | Luo Mary Z. (COO,Chief Scientist & Chairman) | Option Ex | 647,343 | 11.51 | 7,448,328 |
| 2017-05-11 | Prins Richard K (Director) | Sale | 7,500 | 15.43 | 115,725 |
| 2017-05-11 | Prins Richard K (Director) | Option Ex | 7,500 | 10.77 | 80,775 |
| 2017-01-03 | Petersen Floyd F. (Director) | Sale | 400 | 18.61 | 7,444 |
| 2016-12-15 | Gerst Diane G. (EVP, QA & Regulatory Affairs) | Sale | 2,940 | 20.51 | 60,287 |
| 2016-12-05 | Zhou Rong (EVP, Production Center) | Sale | 61 | 20.70 | 1,262 |
| 2016-12-01 | Petersen Floyd F. (Director) | Sale | 400 | 20.26 | 8,104 |
| 2016-11-28 | Shandell Jason B. (President and General Counsel) | Sale | 24,292 | 20.47 | 497,208 |
| 2016-11-28 | Shandell Jason B. (President and General Counsel) | Option Ex | 24,292 | 10.93 | 265,511 |
| 2016-11-25 | Shandell Jason B. (President and General Counsel) | Sale | 2,043 | 20.59 | 42,057 |
| 2016-11-25 | Shandell Jason B. (President and General Counsel) | Option Ex | 2,043 | 10.93 | 22,329 |
| 2016-11-15 | Lee Howard (Director) | Sale | 17,994 | 20.76 | 373,519 |
| 2016-11-15 | Lee Howard (Director) | Option Ex | 17,994 | 14.23 | 256,054 |
| 2016-11-14 | Lee Howard (Director) | Sale | 20,000 | 20.56 | 411,180 |
| 2016-11-14 | Lee Howard (Director) | Option Ex | 20,000 | 14.23 | 284,600 |
| 2016-11-11 | Prins Richard K (Director) | Sale | 8,000 | 20.06 | 160,504 |
| 2016-11-11 | Prins Richard K (Director) | Option Ex | 5,000 | 10.77 | 53,850 |
| 2016-11-01 | Petersen Floyd F. (Director) | Sale | 400 | 18.09 | 7,236 |
| 2016-10-03 | Petersen Floyd F. (Director) | Sale | 400 | 18.75 | 7,500 |
| 2016-09-26 | Shandell Jason B. (President and General Counsel) | Sale | 56,996 | 19.50 | 1,111,251 |
| 2016-09-26 | Shandell Jason B. (President and General Counsel) | Option Ex | 56,996 | 10.93 | 622,966 |
| 2016-09-21 | Luo Mary Z. (COO Chief Scientist & Chairman) | Sale | 55,081 | 21.07 | 1,160,776 |
| 2016-09-21 | Luo Mary Z. (COO Chief Scientist & Chairman) | Option Ex | 55,081 | 16.75 | 922,771 |
| 2016-09-20 | Luo Mary Z. (COO Chief Scientist & Chairman) | Sale | 389,118 | 21.03 | 8,183,540 |
| 2016-09-20 | Luo Mary Z. (COO Chief Scientist & Chairman) | Option Ex | 389,118 | 16.75 | 6,518,893 |
| 2016-09-08 | Petersen Floyd F. (Director) | Sale | 3,000 | 19.05 | 57,150 |
| 2016-09-01 | Lee Howard (Director) | Sale | 10,381 | 18.78 | 194,913 |
| 2016-09-01 | Lee Howard (Director) | Option Ex | 10,381 | 15.23 | 158,102 |
| 2016-08-22 | Shandell Jason B. (President and General Counsel) | Sale | 10,000 | 19.95 | 199,500 |
| 2016-08-22 | Shandell Jason B. (President and General Counsel) | Option Ex | 10,000 | 10.46 | 104,600 |
| 2016-08-19 | Gerst Diane G. (EVP, QA & Regulatory Affairs) | Sale | 24,046 | 19.28 | 463,606 |
| 2016-08-19 | Gerst Diane G. (EVP, QA & Regulatory Affairs) | Option Ex | 24,046 | 12.58 | 302,498 |
| 2016-08-18 | Prins Richard K (Director) | Sale | 3,086 | 19.62 | 60,538 |
| 2016-08-17 | Shandell Jason B. (President and General Counsel) | Sale | 5,987 | 18.86 | 112,908 |
| 2016-08-16 | Shohet Stephen B. (Director) | Sale | 10,670 | 18.35 | 195,783 |
| 2016-08-16 | Shohet Stephen B. (Director) | Option Ex | 10,670 | 14.23 | 151,834 |
| 2016-08-15 | Shohet Stephen B. (Director) | Sale | 22,917 | 18.26 | 418,487 |
| 2016-08-15 | Shohet Stephen B. (Director) | Option Ex | 22,917 | 14.23 | 326,108 |
| 2016-08-15 | Zasloff Michael A (Director) | Sale | 17,400 | 18.22 | 316,975 |
| 2016-08-15 | Zasloff Michael A (Director) | Option Ex | 17,400 | 14.23 | 247,602 |
| 2016-08-12 | Shohet Stephen B. (Director) | Sale | 14,788 | 18.12 | 268,017 |
| 2016-08-12 | Shohet Stephen B. (Director) | Option Ex | 14,788 | 14.73 | 217,827 |
| 2016-08-12 | Peters William J (CFO, SVP & Treasurer) | Sale | 1,027 | 18.19 | 18,681 |
| 2016-08-12 | Zasloff Michael A (Director) | Sale | 30,975 | 18.12 | 561,143 |
| 2016-08-12 | Zasloff Michael A (Director) | Option Ex | 30,975 | 14.73 | 456,261 |
| 2016-08-11 | Shandell Jason B. (President) | Sale | 5,636 | 18.01 | 101,481 |
| 2016-08-11 | Prins Richard K (Director) | Sale | 13,993 | 18.03 | 252,279 |
| 2016-08-11 | Prins Richard K (Director) | Option Ex | 13,993 | 13.41 | 187,646 |
| 2016-07-18 | Peters William J (CFO, SVP & Treasurer) | Sale | 2,297 | 17.76 | 40,794 |
| 2016-06-15 | Zhou Rong (EVP, Production Center) | Sale | 1,551 | 15.85 | 24,583 |
| 2016-06-13 | Prins Richard K (Director) | Sale | 7,500 | 15.94 | 119,535 |
| 2016-06-13 | Prins Richard K (Director) | Option Ex | 7,500 | 14.23 | 106,725 |
| 2016-06-09 | Shandell Jason B. (President) | Sale | 9,904 | 16.43 | 162,722 |
| 2016-06-02 | Peters William J (CFO, SVP & Treasurer) | Sale | 2,297 | 16.00 | 36,752 |
| 2016-05-25 | Shandell Jason B. (President) | Sale | 1,074 | 15.60 | 16,754 |
| 2016-05-18 | Gerst Diane G. (EVP, QA & Regulatory Affairs) | Sale | 1,427 | 13.97 | 19,939 |
| 2016-05-17 | Prins Richard K (Director) | Sale | 3,200 | 13.56 | 43,392 |
| 2016-04-19 | Gerst Diane G. (EVP, QA & Regulatory Affairs) | Sale | 5,607 | 13.04 | 73,126 |
| 2016-04-19 | Gerst Diane G. (EVP, QA & Regulatory Affairs) | Option Ex | 5,607 | 10.48 | 58,761 |
| 2016-04-18 | Gerst Diane G. (EVP, QA & Regulatory Affairs) | Sale | 15,637 | 12.83 | 200,653 |
| 2016-04-18 | Gerst Diane G. (EVP, QA & Regulatory Affairs) | Option Ex | 14,210 | 10.95 | 155,528 |
| 2016-03-17 | Prins Richard K (Director) | Sale | 2,400 | 11.25 | 27,000 |
| 2015-12-17 | Shohet Stephen B. (Director) | Sale | 15,191 | 14.20 | 215,636 |
| 2015-12-17 | Shohet Stephen B. (Director) | Option Ex | 15,191 | 11.68 | 177,430 |
| 2015-12-17 | Zasloff Michael A (Director) | Sale | 14,232 | 14.20 | 202,108 |
| 2015-12-17 | Zasloff Michael A (Director) | Option Ex | 14,232 | 11.68 | 166,229 |
| 2015-12-16 | Zhou Rong (EVP, Production) | Sale | 772 | 14.29 | 11,031 |
| 2015-12-16 | Shohet Stephen B. (Director) | Sale | 15,579 | 14.19 | 221,081 |
| 2015-12-16 | Shohet Stephen B. (Director) | Option Ex | 15,579 | 11.68 | 181,962 |
| 2015-12-16 | Lee Howard (Director) | Sale | 1,926 | 14.33 | 27,599 |
| 2015-12-16 | Lee Howard (Director) | Option Ex | 1,926 | 11.68 | 22,495 |
| 2015-12-16 | Zasloff Michael A (Director) | Sale | 16,538 | 14.19 | 234,740 |
| 2015-12-16 | Zasloff Michael A (Director) | Option Ex | 16,538 | 11.68 | 193,163 |
| 2015-12-15 | Lee Howard (Director) | Sale | 36,536 | 14.34 | 523,999 |
| 2015-12-15 | Lee Howard (Director) | Option Ex | 36,536 | 11.68 | 426,740 |
| 2015-12-11 | Applied Physics & Chemistry Laboratories, Inc. (10% Owner) | Sale | 15,066 | 14.05 | 211,737 |
| 2015-12-11 | Luo Mary Z. (COO & Chief Scientist) | Sale | 15,066 | 14.05 | 211,737 |
| 2015-12-10 | Applied Physics & Chemistry Laboratories, Inc. (10% Owner) | Sale | 21,915 | 14.32 | 313,888 |
| 2015-12-10 | Luo Mary Z. (COO & Chief Scientist) | Sale | 21,915 | 14.32 | 313,888 |
| 2015-12-09 | Applied Physics & Chemistry Laboratories, Inc. (10% Owner) | Sale | 26,319 | 14.29 | 376,124 |
| 2015-12-09 | Luo Mary Z. (COO & Chief Scientist) | Sale | 26,319 | 14.29 | 376,124 |
| 2015-12-08 | Applied Physics & Chemistry Laboratories, Inc. (10% Owner) | Sale | 24,359 | 14.50 | 353,108 |
| 2015-12-08 | Luo Mary Z. (COO & Chief Scientist) | Sale | 24,359 | 14.50 | 353,108 |
| 2015-12-07 | Applied Physics & Chemistry Laboratories, Inc. (10% Owner) | Sale | 15,046 | 14.59 | 219,491 |
| 2015-12-07 | Luo Mary Z. (COO & Chief Scientist) | Sale | 15,046 | 14.59 | 219,491 |
| 2015-12-04 | Applied Physics & Chemistry Laboratories, Inc. (10% Owner) | Sale | 28,712 | 14.95 | 429,301 |
| 2015-12-04 | Luo Mary Z. (COO & Chief Scientist) | Sale | 28,712 | 14.95 | 429,301 |
| 2015-12-03 | Applied Physics & Chemistry Laboratories, Inc. (10% Owner) | Sale | 18,583 | 15.41 | 286,456 |
| 2015-12-03 | Luo Mary Z. (10% Owner) | Sale | 18,583 | 15.41 | 286,456 |
| 2015-12-01 | Applied Physics & Chemistry Laboratories, Inc. (10% Owner) | Sale | 20,000 | 15.49 | 309,780 |
| 2015-12-01 | Luo Mary Z. (10% Owner) | Sale | 20,000 | 15.49 | 309,780 |
| 2015-11-20 | Petersen Floyd F. (Director) | Sale | 31,529 | 14.29 | 450,517 |
| 2015-11-20 | Petersen Floyd F. (Director) | Option Ex | 38,462 | 11.68 | 449,236 |
| 2015-11-17 | Prins Richard K (Director) | Sale | 3,772 | 13.95 | 52,608 |
| 2015-08-18 | Prins Richard K (Director) | Sale | 9,100 | 14.66 | 133,396 |
| 2015-08-18 | Prins Richard K (Director) | Option Ex | 2,100 | 10.77 | 22,617 |
| 2015-08-17 | Luo Mary Z. (COO and Chief Scientist) | Option Ex | 16,962 | 12.97 | 219,997 |
| 2015-08-17 | Prins Richard K (Director) | Sale | 5,400 | 14.70 | 79,385 |
| 2015-08-17 | Prins Richard K (Director) | Option Ex | 5,400 | 10.77 | 58,158 |
| 2015-07-17 | Shohet Stephen B. (Director) | Sale | 7,692 | 17.41 | 133,925 |
| 2015-07-17 | Shohet Stephen B. (Director) | Option Ex | 7,692 | 11.68 | 89,842 |
| 2015-07-17 | Zasloff Michael A (Director) | Sale | 7,692 | 17.41 | 133,902 |
| 2015-07-17 | Zasloff Michael A (Director) | Option Ex | 7,692 | 11.68 | 89,842 |
| 2015-06-17 | Zhou Rong (EVP, Production) | Sale | 1,000 | 16.48 | 16,480 |
| 2015-06-15 | Luo Mary Z. (COO and Chief Scientist) | Sale | 45,382 | 16.29 | 739,454 |
| 2015-06-15 | Luo Mary Z. (COO and Chief Scientist) | Option Ex | 50,061 | 12.97 | 649,291 |
| 2015-06-12 | Luo Mary Z. (COO, Chief Scientist, Chairman) | Sale | 114,089 | 16.16 | 1,843,450 |
| 2015-06-12 | Luo Mary Z. (COO, Chief Scientist, Chairman) | Option Ex | 125,476 | 12.97 | 1,627,423 |
| 2015-06-11 | Luo Mary Z. (COO, Chief Scientist, Chairman) | Sale | 23,264 | 16.47 | 383,134 |
| 2015-06-11 | Luo Mary Z. (COO, Chief Scientist, Chairman) | Option Ex | 25,790 | 12.97 | 334,496 |
| 2015-06-10 | Luo Mary Z. (COO, Chief Scientist, Chairman) | Sale | 23,142 | 16.38 | 378,973 |
| 2015-06-10 | Luo Mary Z. (COO, Chief Scientist, Chairman) | Option Ex | 25,594 | 12.97 | 331,954 |
| 2015-06-09 | Luo Mary Z. (COO, Chief Scientist, Chairman) | Sale | 51,500 | 16.18 | 833,218 |
| 2015-06-09 | Luo Mary Z. (COO, Chief Scientist, Chairman) | Option Ex | 56,757 | 12.97 | 736,138 |
| 2015-06-08 | Luo Mary Z. (COO, Chief Scientist, Chairman) | Sale | 54,120 | 16.61 | 898,987 |
| 2015-06-08 | Luo Mary Z. (COO, Chief Scientist, Chairman) | Option Ex | 60,218 | 12.97 | 781,027 |
| 2015-06-05 | Luo Mary Z. (COO, Chief Scientist, Chairman) | Sale | 88,138 | 16.46 | 1,451,192 |
| 2015-06-05 | Luo Mary Z. (COO, Chief Scientist, Chairman) | Option Ex | 99,142 | 12.97 | 1,285,871 |
| 2015-05-22 | Prins Richard K (Director) | Sale | 1,942 | 14.76 | 28,654 |
| 2015-05-22 | Prins Richard K (Director) | Option Ex | 1,942 | 10.77 | 20,915 |
| 2015-05-21 | Prins Richard K (Director) | Sale | 13,565 | 14.76 | 200,178 |
| 2015-05-21 | Prins Richard K (Director) | Option Ex | 13,565 | 11.22 | 152,267 |
| 2015-05-20 | Prins Richard K (Director) | Sale | 13,945 | 14.79 | 206,246 |
| 2015-05-20 | Prins Richard K (Director) | Option Ex | 13,945 | 11.68 | 162,877 |
| 2015-05-19 | Prins Richard K (Director) | Sale | 3,000 | 14.94 | 44,826 |
| 2015-05-19 | Prins Richard K (Director) | Option Ex | 3,000 | 11.68 | 35,040 |
| 2015-04-09 | Purchase Marilyn J. (Corp. Exec. VP of Operations) | Sale | 28,000 | 15.79 | 442,120 |
| 2015-04-09 | Purchase Marilyn J. (Corp. Exec. VP of Operations) | Option Ex | 28,000 | 14.80 | 414,400 |
| 2015-04-08 | Gerst Diane G. (Corp. SVP of Quality Assurance) | Sale | 10,000 | 15.79 | 157,900 |
| 2015-04-08 | Gerst Diane G. (Corp. SVP of Quality Assurance) | Option Ex | 10,000 | 14.80 | 148,000 |
Insider trading activities including stock purchases, stock sales, and option exercises of AMPH listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Amphastar Pharmaceuticals, Inc. (symbol AMPH, CIK number 1297184) see the Securities and Exchange Commission (SEC) website.