Latest insider trades

92 Form 4 trades in our database.

PPurchaseSSaleMOption exerciseAAward/GrantFTax withholdingGGift

Sun Kangsold62,101 shares ofAMPXat $10.341$642KAug 21 · filed Aug 25Details
Stefan Constantin Ionelsold29,681 shares ofAMPXat $10.341$307KAug 21 · filed Aug 25Details
Stepien Thomas Mgranted346 shares ofAMPXat $0Aug 25Details
Stepien Thomas Mgifted346 shares ofAMPXat $0Aug 25Details
Stepien Thomas Mgifted5,000 shares ofAMPXat $0Aug 25Details
Stepien Thomas Msold8,000 shares ofAMPXat $10.03$80KAug 24 · filed Aug 25Details
Stepien Thomas Msold23,529 shares ofAMPXat $10.341$243KAug 21 · filed Aug 25Details
SATTERTHWAITE LIVINGSTONgranted10,423 shares ofAMPXat $0Jun 12 · filed Jun 16Details
Chu Stevengranted10,423 shares ofAMPXat $0Jun 12 · filed Jun 16Details
BAYLESS KATHLEEN Agranted10,423 shares ofAMPXat $0Jun 12 · filed Jun 16Details
DIXON DONALD Rsold85,000 shares ofAMPXat $17.167$1.5MJun 15 · filed Jun 16Details
DIXON DONALD Rgranted10,423 shares ofAMPXat $0Jun 12 · filed Jun 16Details
DIXON DONALD Rsold40,000 shares ofAMPXat $19.13$765KJun 9 · filed Jun 11Details
Stepien Thomas Msold2,000 shares ofAMPXat $20.97$42KJun 4 · filed Jun 5Details
Stepien Thomas Mgifted36,914 shares ofAMPXat $0Jun 4 · filed Jun 5Details
Stepien Thomas Mgifted30,384 shares ofAMPXat $0Jun 4 · filed Jun 5Details
Stepien Thomas Msold4,375 shares ofAMPXat $17.194$75KMay 27 · filed May 28Details
Stefan Constantin Ionelsold3,208 shares ofAMPXat $17.194$55KMay 27 · filed May 28Details
Sun Kangsold356 shares ofAMPXat $17.194$6KMay 27 · filed May 28Details
DIXON DONALD Rsold17,895 shares ofAMPXat $17.896$320KMay 26 · filed May 28Details
Stepien Thomas Msold60,702 shares ofAMPXat $14.788$898KMay 21 · filed May 26Details
Stefan Constantin Ionelsold28,812 shares ofAMPXat $14.788$426KMay 21 · filed May 26Details
Sun Kangsold67,796 shares ofAMPXat $14.788$1MMay 21 · filed May 26Details
Sun Kanggranted6,250 shares ofAMPXat $0May 5 · filed May 7Details
Sun Kangsold249,037 shares ofAMPXat $16.783$4.2MApr 1 · filed Apr 2Details
Sun Kangsold1,250,963 shares ofAMPXat $15.733$19.7MApr 1 · filed Apr 2Details
Sun Kangexercised187,495 shares ofAMPXat $3.68$690KApr 1 · filed Apr 2Details
Sun Kangexercised1,312,505 shares ofAMPXat $1.78$2.3MApr 1 · filed Apr 2Details
Sun Kangsold65,046 shares ofAMPXat $19.059$1.2MMar 23 · filed Mar 24Details
Sun Kangsold152,823 shares ofAMPXat $18.686$2.9MMar 23 · filed Mar 24Details
HSIEH Wen Hsuansold130,646 shares ofAMPXat $18.223$2.4MMar 12 · filed Mar 13Details
HSIEH Wen Hsuansold282,500 shares ofAMPXat $18.546$5.2MMar 12 · filed Mar 13Details
HSIEH Wen Hsuanexercised270,251 shares ofAMPXat $2.61$705KMar 12 · filed Mar 13Details
Chu Stevensold5,565 shares ofAMPXat $18.535$103KMar 12Details
Chu Stevensold50,000 shares ofAMPXat $18.215$911KMar 12Details
Chu Stevensold100,000 shares ofAMPXat $18.647$1.9MMar 12Details
Chu Stevenexercised69,422 shares ofAMPXat $0.62$43KMar 12Details
Chu Stevenexercised86,143 shares ofAMPXat $2.61$225KMar 12Details
Chu Stevensold166,632 shares ofAMPXat $17.916$3MMar 10 · filed Mar 12Details
Chu Stevenexercised104,132 shares ofAMPXat $0.62$65KMar 10 · filed Mar 12Details
Stepien Thomas Mgranted150,000 shares ofAMPXat $0Mar 4 · filed Mar 6Details
Stefan Constantin Ionelgranted110,000 shares ofAMPXat $0Mar 4 · filed Mar 6Details
RODRIGUEZ RICARDO C.granted150,000 shares ofAMPXat $0Mar 4 · filed Mar 6Details
Stefan Constantin Ionelsold25,366 shares ofAMPXat $10.156$258KFeb 23 · filed Feb 24Details
Sun Kangsold61,251 shares ofAMPXat $10.156$622KFeb 23 · filed Feb 24Details
Stefan Constantin Ionelsold39,690 shares ofAMPXat $12.002$476KJan 28 · filed Jan 30Details
Stefan Constantin Ionelexercised39,600 shares ofAMPXat $0.05$2KJan 28 · filed Jan 30Details
Stefan Constantin Ionelexercised90 shares ofAMPXat $0.62$56Jan 28 · filed Jan 30Details
Stefan Constantin Ionelsold1,600 shares ofAMPXat $12$19KJan 23Details
Stefan Constantin Ionelexercised1,600 shares ofAMPXat $0.05$80Jan 23Details