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Zhang Jack Y. - Insider Transactions

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Ticker Owner Relationship Date Transaction Cost #Shares Value ($) #Shares Total SEC Form 4
AMPHZhang Jack Y.CEO & Chief Scientific OfficerMar 15Option Exercise12.46722,0468,996,6932,858,043Mar 19 06:55 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerMar 15Option Exercise12.46310,9303,874,1881,439,466Mar 19 06:55 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerMay 20Sale34.2110,650364,3652,104,143May 23 04:05 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerMay 18Sale34.1467,0462,289,1012,156,523May 20 04:38 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerMay 19Sale33.7641,7301,408,7612,114,793May 20 04:38 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerMay 16Sale35.7568,0692,433,4572,273,945May 18 04:06 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerMay 17Sale35.7650,3761,801,4402,223,569May 18 04:06 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerFeb 16Sale18.5116,259301,0316,841,887Feb 18 06:58 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerFeb 17Sale18.6713,801257,7236,828,086Feb 18 06:58 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerFeb 18Sale18.584077,5626,827,679Feb 18 06:58 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerFeb 10Sale18.7615,747295,3446,891,246Feb 12 07:11 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerFeb 11Sale19.0619,823377,8846,871,423Feb 12 07:11 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerFeb 12Sale18.9413,277251,5226,858,146Feb 12 07:11 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerFeb 05Sale18.9415,507293,7216,932,372Feb 09 05:30 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerFeb 08Sale18.8913,452254,0496,918,920Feb 09 05:30 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerFeb 09Sale18.9311,927225,7766,906,993Feb 09 05:30 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerFeb 03Sale18.3616,299299,3236,973,449Feb 05 08:35 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerFeb 04Sale18.8925,570483,0206,947,879Feb 05 08:35 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerFeb 01Sale18.2924,114441,1207,003,565Feb 03 04:15 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerFeb 02Sale18.6613,817257,8216,989,748Feb 03 04:15 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerSep 11Sale20.82300,0006,246,0007,027,679Sep 12 07:50 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerMar 15Option Exercise15.84514,7838,154,1632,587,100Mar 18 07:53 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerMar 15Option Exercise15.84224,7373,559,8341,591,443Mar 18 07:53 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerDec 14Sale20.4843,577892,3092,072,317Dec 17 08:02 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerDec 11Sale21.4766,7571,433,1507,394,837Dec 13 08:08 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerDec 12Sale21.2137,469794,7367,357,368Dec 13 08:08 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerDec 13Sale20.9929,689623,1667,327,679Dec 13 08:08 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerJul 02Option Exercise12.02319,7913,844,8472,400,410Jul 03 05:06 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerJul 02Option Exercise12.02186,5452,242,8311,532,674Jul 03 05:06 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerMay 15Buy16.0825,000401,9702,065,619May 17 07:05 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerMay 16Buy16.0615,000240,8532,080,619May 17 07:05 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerDec 15Option Exercise12.02639,5847,689,7182,537,431Dec 19 06:25 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerDec 15Option Exercise12.02373,0914,485,6731,636,469Dec 19 06:25 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerMay 23Option Exercise11.51382,4484,400,4471,554,950May 25 04:15 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerMay 23Option Exercise11.51264,8953,047,8821,058,705May 25 04:15 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerSep 20Option Exercise16.75207,3503,473,7351,295,685Sep 22 04:39 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerSep 20Option Exercise16.75181,7683,045,159934,089Sep 22 04:39 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerSep 21Option Exercise16.7555,081922,7721,143,416Sep 22 04:39 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerSep 21Sale20.7055,0811,140,3341,088,335Sep 22 04:39 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerSep 20Sale21.11207,3504,376,7381,088,335Sep 22 04:39 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerSep 20Sale21.05181,7683,825,732752,321Sep 22 04:39 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerDec 09Sale14.2926,319376,1337,498,575Dec 11 06:12 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerDec 10Sale14.3221,915313,8847,476,660Dec 11 06:12 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerDec 11Sale14.0515,066211,7367,461,594Dec 11 06:12 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerDec 04Sale14.9528,712429,3027,564,299Dec 08 07:14 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerDec 07Sale14.5915,046219,4907,549,253Dec 08 07:14 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerDec 08Sale14.5024,359353,1187,524,894Dec 08 07:14 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerDec 01Sale15.4920,000309,7807,611,594Dec 03 07:12 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerDec 03Sale15.4218,583286,4617,593,011Dec 03 07:12 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerAug 17Option Exercise12.978,481109,999920,117Aug 19 08:18 PM
AMPHZhang Jack Y.CEO & Chief Scientific OfficerAug 17Option Exercise12.978,481109,999670,147Aug 19 08:18 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 15Option Exercise12.9750,061649,291961,697Jun 17 06:01 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 15Sale16.2945,382739,445916,315Jun 17 06:01 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 10Option Exercise12.9712,975168,286924,611Jun 12 09:30 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 10Option Exercise12.9712,619163,668674,285Jun 12 09:30 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 11Option Exercise12.9712,860166,794924,496Jun 12 09:30 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 11Option Exercise12.9712,930167,702674,596Jun 12 09:30 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 12Option Exercise12.9783,2531,079,791994,889Jun 12 09:30 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 12Option Exercise12.9742,223547,632703,889Jun 12 09:30 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 12Sale16.1575,6181,221,132919,271Jun 12 09:30 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 12Sale16.1738,471621,972665,418Jun 12 09:30 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 11Sale16.4711,600191,045912,896Jun 12 09:30 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 11Sale16.4711,664192,093662,932Jun 12 09:30 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 10Sale16.3811,731192,144912,880Jun 12 09:30 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 10Sale16.3711,411186,820662,874Jun 12 09:30 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 05Option Exercise12.9748,980635,271960,616Jun 09 08:34 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 05Option Exercise12.9750,162650,601711,828Jun 09 08:34 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 08Option Exercise12.9730,066389,956946,533Jun 09 08:34 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 08Option Exercise12.9730,152391,071697,991Jun 09 08:34 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 09Option Exercise12.9728,324367,362947,837Jun 09 08:34 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 09Option Exercise12.9728,433368,776699,324Jun 09 08:34 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 09Sale16.2425,700417,255922,137Jun 09 08:34 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 09Sale16.1225,800415,971673,524Jun 09 08:34 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 08Sale16.6127,020448,910919,513Jun 09 08:34 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 08Sale16.6127,100450,096670,891Jun 09 08:34 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 05Sale16.4644,149726,878916,467Jun 09 08:34 PM
AMPHZhang Jack Y.CEO & Chief Science OfficerJun 05Sale16.4743,989724,310667,839Jun 09 08:34 PM
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