Latest insider trades

92 Form 4 trades in our database.

PPurchaseSSaleMOption exerciseAAward/GrantFTax withholdingGGift

Stefan Constantin Ionelsold492,827 shares ofAMPXat $12.037$5.9MJan 22 · filed Jan 23Details
Stefan Constantin Ionelexercised166,104 shares ofAMPXat $0.05$8KJan 22 · filed Jan 23Details
Stefan Constantin Ionelexercised72,795 shares ofAMPXat $0.45$33KJan 22 · filed Jan 23Details
Stefan Constantin Ionelexercised253,928 shares ofAMPXat $0.05$13KJan 22 · filed Jan 23Details
Stefan Constantin Ionelsold73,280 shares ofAMPXat $12.001$879KJan 21 · filed Jan 23Details
Stefan Constantin Ionelexercised15,883 shares ofAMPXat $0.05$794Jan 21 · filed Jan 23Details
Stefan Constantin Ionelexercised15,834 shares ofAMPXat $0.05$792Jan 21 · filed Jan 23Details
Stefan Constantin Ionelexercised41,563 shares ofAMPXat $0.62$26KJan 21 · filed Jan 23Details
Sun Kangsold43,185 shares ofAMPXat $11.029$476KJan 20Details
Sun Kangexercised43,185 shares ofAMPXat $1.78$77KJan 20Details
Sun Kangsold950,548 shares ofAMPXat $11.066$10.5MJan 16 · filed Jan 20Details
Sun Kangexercised100,210 shares ofAMPXat $1.78$178KJan 16 · filed Jan 20Details
Sun Kangexercised850,338 shares ofAMPXat $2.5$2.1MJan 16 · filed Jan 20Details
Sun Kangsold506,267 shares ofAMPXat $10.096$5.1MJan 12 · filed Jan 14Details
Sun Kangexercised117,201 shares ofAMPXat $2.5$293KJan 12 · filed Jan 14Details
Sun Kangexercised208,264 shares ofAMPXat $2.44$508KJan 12 · filed Jan 14Details
Sun Kangexercised180,802 shares ofAMPXat $0.62$112KJan 12 · filed Jan 14Details
Stepien Thomas Mgranted200,000 shares ofAMPXat $0Dec 19, 2025 · filed Dec 22, 2025Details
Stefan Constantin Ionelsold198,255 shares ofAMPXat $10.509$2.1MDec 11, 2025 · filed Dec 15, 2025Details
Stefan Constantin Ionelexercised125,000 shares ofAMPXat $0.05$6KDec 11, 2025 · filed Dec 15, 2025Details
Stefan Constantin Ionelsold25,024 shares ofAMPXat $10.081$252KNov 21, 2025 · filed Nov 25, 2025Details
Sun Kangsold68,655 shares ofAMPXat $10.081$692KNov 21, 2025 · filed Nov 25, 2025Details
Sun Kangsold1,000,000 shares ofAMPXat $10.595$10.6MNov 17, 2025 · filed Nov 19, 2025Details
Sun Kangexercised41,653 shares ofAMPXat $0.62$26KNov 17, 2025 · filed Nov 19, 2025Details
Sun Kangexercised27,463 shares ofAMPXat $0.62$17KNov 17, 2025 · filed Nov 19, 2025Details
Sun Kangexercised727,950 shares ofAMPXat $0.05$36KNov 17, 2025 · filed Nov 19, 2025Details
Sun Kangexercised202,934 shares ofAMPXat $0.98$199KNov 17, 2025 · filed Nov 19, 2025Details
RODRIGUEZ RICARDO C.granted200,000 shares ofAMPXat $0Oct 6, 2025 · filed Oct 8, 2025Details
Stefan Constantin Ionelsold19,159 shares ofAMPXat $6.816$131KAug 21, 2025 · filed Aug 25, 2025Details
Wallach Sandrasold28,390 shares ofAMPXat $6.816$194KAug 21, 2025 · filed Aug 25, 2025Details
Sun Kangsold65,654 shares ofAMPXat $6.816$448KAug 21, 2025 · filed Aug 25, 2025Details
Bornstein Jonathangranted558,930 shares ofAMPXat $0Mar 19, 2024Details
Stefan Constantin Ionelgranted374,570 shares ofAMPXat $0Mar 19, 2024Details
Bornstein Jonathansold40,200 shares ofAMPXat $2.776$112KMar 6, 2024 · filed Mar 7, 2024Details
Bornstein Jonathanexercised40,200 shares ofAMPXat $0.05$2KMar 6, 2024 · filed Mar 7, 2024Details
Bornstein Jonathansold109,800 shares ofAMPXat $2.919$320KMar 5, 2024 · filed Mar 7, 2024Details
Bornstein Jonathanexercised109,800 shares ofAMPXat $0.05$5KMar 5, 2024 · filed Mar 7, 2024Details
Bornstein Jonathansold150,000 shares ofAMPXat $4.425$664KFeb 6, 2024 · filed Feb 7, 2024Details
Bornstein Jonathanexercised150,000 shares ofAMPXat $0.05$8KFeb 6, 2024 · filed Feb 7, 2024Details
Bornstein Jonathansold25,366 shares ofAMPXat $5.049$128KJan 2, 2024 · filed Jan 4, 2024Details
Bornstein Jonathansold124,634 shares ofAMPXat $4.318$538KJan 2, 2024 · filed Jan 4, 2024Details
Bornstein Jonathanexercised150,000 shares ofAMPXat $0.05$8KJan 2, 2024 · filed Jan 4, 2024Details