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| Latest Insider Trading | Top Insider Trading Recent Week | Top 10% Owner Trading Recent Week | Filter
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| Ticker | Owner | Relationship | Date | Transaction | Cost  |
#Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | May 20 | Sale | 34.21 | 10,650 | 364,365 | 2,104,143 | May 23 04:05 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | May 18 | Sale | 34.14 | 67,046 | 2,289,101 | 2,156,523 | May 20 04:38 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | May 19 | Sale | 33.76 | 41,730 | 1,408,761 | 2,114,793 | May 20 04:38 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | May 16 | Sale | 35.75 | 68,069 | 2,433,457 | 2,273,945 | May 18 04:06 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | May 17 | Sale | 35.76 | 50,376 | 1,801,440 | 2,223,569 | May 18 04:06 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Feb 16 | Sale | 18.51 | 16,259 | 301,031 | 6,841,887 | Feb 18 06:58 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Feb 17 | Sale | 18.67 | 13,801 | 257,723 | 6,828,086 | Feb 18 06:58 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Feb 18 | Sale | 18.58 | 407 | 7,562 | 6,827,679 | Feb 18 06:58 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Feb 10 | Sale | 18.76 | 15,747 | 295,344 | 6,891,246 | Feb 12 07:11 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Feb 11 | Sale | 19.06 | 19,823 | 377,884 | 6,871,423 | Feb 12 07:11 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Feb 12 | Sale | 18.94 | 13,277 | 251,522 | 6,858,146 | Feb 12 07:11 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Feb 05 | Sale | 18.94 | 15,507 | 293,721 | 6,932,372 | Feb 09 05:30 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Feb 08 | Sale | 18.89 | 13,452 | 254,049 | 6,918,920 | Feb 09 05:30 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Feb 09 | Sale | 18.93 | 11,927 | 225,776 | 6,906,993 | Feb 09 05:30 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Feb 03 | Sale | 18.36 | 16,299 | 299,323 | 6,973,449 | Feb 05 08:35 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Feb 04 | Sale | 18.89 | 25,570 | 483,020 | 6,947,879 | Feb 05 08:35 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Feb 01 | Sale | 18.29 | 24,114 | 441,120 | 7,003,565 | Feb 03 04:15 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Feb 02 | Sale | 18.66 | 13,817 | 257,821 | 6,989,748 | Feb 03 04:15 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Sep 11 | Sale | 20.82 | 300,000 | 6,246,000 | 7,027,679 | Sep 12 07:50 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Dec 14 | Sale | 20.48 | 43,577 | 892,309 | 2,072,317 | Dec 17 08:02 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Dec 11 | Sale | 21.47 | 66,757 | 1,433,150 | 7,394,837 | Dec 13 08:08 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Dec 12 | Sale | 21.21 | 37,469 | 794,736 | 7,357,368 | Dec 13 08:08 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Scientific Officer | Dec 13 | Sale | 20.99 | 29,689 | 623,166 | 7,327,679 | Dec 13 08:08 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Sep 20 | Sale | 21.11 | 207,350 | 4,376,738 | 1,088,335 | Sep 22 04:39 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Sep 20 | Sale | 21.05 | 181,768 | 3,825,732 | 752,321 | Sep 22 04:39 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Sep 21 | Sale | 20.70 | 55,081 | 1,140,334 | 1,088,335 | Sep 22 04:39 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Dec 09 | Sale | 14.29 | 26,319 | 376,133 | 7,498,575 | Dec 11 06:12 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Dec 10 | Sale | 14.32 | 21,915 | 313,884 | 7,476,660 | Dec 11 06:12 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Dec 11 | Sale | 14.05 | 15,066 | 211,736 | 7,461,594 | Dec 11 06:12 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Dec 04 | Sale | 14.95 | 28,712 | 429,302 | 7,564,299 | Dec 08 07:14 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Dec 07 | Sale | 14.59 | 15,046 | 219,490 | 7,549,253 | Dec 08 07:14 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Dec 08 | Sale | 14.50 | 24,359 | 353,118 | 7,524,894 | Dec 08 07:14 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Dec 01 | Sale | 15.49 | 20,000 | 309,780 | 7,611,594 | Dec 03 07:12 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Dec 03 | Sale | 15.42 | 18,583 | 286,461 | 7,593,011 | Dec 03 07:12 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Jun 15 | Sale | 16.29 | 45,382 | 739,445 | 916,315 | Jun 17 06:01 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Jun 10 | Sale | 16.38 | 11,731 | 192,144 | 912,880 | Jun 12 09:30 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Jun 10 | Sale | 16.37 | 11,411 | 186,820 | 662,874 | Jun 12 09:30 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Jun 11 | Sale | 16.47 | 11,600 | 191,045 | 912,896 | Jun 12 09:30 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Jun 11 | Sale | 16.47 | 11,664 | 192,093 | 662,932 | Jun 12 09:30 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Jun 12 | Sale | 16.15 | 75,618 | 1,221,132 | 919,271 | Jun 12 09:30 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Jun 12 | Sale | 16.17 | 38,471 | 621,972 | 665,418 | Jun 12 09:30 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Jun 05 | Sale | 16.46 | 44,149 | 726,878 | 916,467 | Jun 09 08:34 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Jun 05 | Sale | 16.47 | 43,989 | 724,310 | 667,839 | Jun 09 08:34 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Jun 08 | Sale | 16.61 | 27,020 | 448,910 | 919,513 | Jun 09 08:34 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Jun 08 | Sale | 16.61 | 27,100 | 450,096 | 670,891 | Jun 09 08:34 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Jun 09 | Sale | 16.24 | 25,700 | 417,255 | 922,137 | Jun 09 08:34 PM |
| AMPH | Zhang Jack Y. | CEO & Chief Science Officer | Jun 09 | Sale | 16.12 | 25,800 | 415,971 | 673,524 | Jun 09 08:34 PM |
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