MetaCap

Ambiq Micro Insider Trades

NYSE: AMBQTechnologySemiconductorsUSD

58.56-0.34 (-0.58%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Last 12 months

Purchases
0 · $0
Sales
64 · $37.00M
Shares bought / sold
0 / 562.67K
Net activity
Net selling $37.0 million

Ambiq Micro insider activity

Over the last 12 months, Ambiq Micro insiders reported 100 transactions on SEC Form 4: 0 open-market purchases and 64 sales. Insiders bought $0 and sold $37.0 million worth of stock, for net insider selling of $37.0 million. The largest seller was Esaka Fumihide, with $16.4 million in reported sales.

The most recent filing shows Chen Sean Chihhsiang (President and COO) selling 5,508 shares at $66.38 on Oct 5, 2026. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put AMBQ's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

AMBQ insider transactions

Ambiq Micro insider transactions
DateInsiderTypeSharesValueFiling
Oct 5, 2026Chen Sean ChihhsiangPresident and COOSale100$6.95KForm 4
Oct 5, 2026Chen Sean ChihhsiangPresident and COOSale800$54.46KForm 4
Oct 5, 2026Chen Sean ChihhsiangPresident and COOSale1,797$120.91KForm 4
Oct 5, 2026Chen Sean ChihhsiangPresident and COOSale5,508$365.63KForm 4
Oct 2, 2026Chen Sean ChihhsiangPresident and COOSale302$21.70KForm 4
Oct 2, 2026Chen Sean ChihhsiangPresident and COOSale3,008$209.87KForm 4
Oct 2, 2026Chen Sean ChihhsiangPresident and COOSale2,492$172.22KForm 4
Oct 2, 2026Hanson Scott McLeanChief Technology OfficerSale452$32.48KForm 4
Oct 2, 2026Hanson Scott McLeanChief Technology OfficerSale4,500$313.97KForm 4
Oct 2, 2026Hanson Scott McLeanChief Technology OfficerSale3,728$257.64KForm 4
Oct 2, 2026Esaka FumihideChief Executive OfficerSale862$61.94KForm 4
Oct 2, 2026Esaka FumihideChief Executive OfficerSale8,585$598.99KForm 4
Oct 2, 2026Esaka FumihideChief Executive OfficerSale7,113$491.57KForm 4
Oct 2, 2026Winzeler Jeffrey GChief Financial OfficerSale284$20.41KForm 4
Oct 2, 2026Winzeler Jeffrey GChief Financial OfficerSale2,828$197.32KForm 4
Oct 2, 2026Winzeler Jeffrey GChief Financial OfficerSale2,343$161.92KForm 4
Sep 15, 2026Esaka FumihideChief Executive OfficerSale100$6.10KForm 4
Sep 15, 2026Esaka FumihideChief Executive OfficerSale9,615$582.17KForm 4
Sep 15, 2026Esaka FumihideChief Executive OfficerSale3,785$225.44KForm 4
Sep 15, 2026Esaka FumihideChief Executive OfficerOption exercise13,500$109.62KForm 4
Sep 15, 2026Hanson Scott McLeanChief Technology OfficerSale100$6.10KForm 4
Sep 15, 2026Hanson Scott McLeanChief Technology OfficerSale4,947$299.57KForm 4
Sep 15, 2026Hanson Scott McLeanChief Technology OfficerSale1,953$116.27KForm 4
Sep 15, 2026Hanson Scott McLeanChief Technology OfficerOption exercise7,000$56.84KForm 4
Sep 14, 2026Chen Sean ChihhsiangPresident and COOSale1,400$85.17KForm 4
Sep 14, 2026Chen Sean ChihhsiangPresident and COOSale11,000$662.62KForm 4
Sep 14, 2026Chen Sean ChihhsiangPresident and COOSale2,600$154.35KForm 4
Sep 14, 2026Chen Sean ChihhsiangPresident and COOOption exercise15,000$121.80KForm 4
Sep 11, 2026Esaka FumihideChief Executive OfficerSale7,917$505.57KForm 4
Sep 11, 2026Esaka FumihideChief Executive OfficerSale42,083$2.66MForm 4
Sep 11, 2026Esaka FumihideChief Executive OfficerOption exercise50,000$630.00KForm 4
Sep 11, 2026ZHANG KERDirectorSale900$57.55KForm 4
Sep 11, 2026ZHANG KERDirectorSale9,100$576.81KForm 4
Sep 4, 2026ZHANG KERDirectorSale185$10.53KForm 4
Sep 4, 2026ZHANG KERDirectorOption exercise1,785$10.50KForm 4
Sep 4, 2026Chen Sean ChihhsiangPresident and COOSale2,126$122.62KForm 4
Sep 4, 2026Chen Sean ChihhsiangPresident and COOSale12,874$734.93KForm 4
Sep 4, 2026Chen Sean ChihhsiangPresident and COOOption exercise15,000$121.80KForm 4
Sep 2, 2026Esaka FumihideChief Executive OfficerSale9,575$543.57KForm 4
Sep 2, 2026Esaka FumihideChief Executive OfficerSale1,452$81.53KForm 4
Sep 2, 2026Esaka FumihideChief Executive OfficerOption exercise11,027$138.94KForm 4
Sep 1, 2026Esaka FumihideChief Executive OfficerSale48,973$2.76MForm 4
Sep 1, 2026Esaka FumihideChief Executive OfficerOption exercise48,973$617.06KForm 4
Aug 31, 2026Esaka FumihideChief Executive OfficerSale5,600$327.36KForm 4
Aug 31, 2026Esaka FumihideChief Executive OfficerSale13,800$796.28KForm 4
Aug 31, 2026Esaka FumihideChief Executive OfficerSale15,600$886.22KForm 4
Aug 31, 2026Esaka FumihideChief Executive OfficerOption exercise44,271$557.81KForm 4
Aug 31, 2026Esaka FumihideChief Executive OfficerSale2,100$122.89KForm 4
Aug 31, 2026Esaka FumihideChief Executive OfficerSale5,501$317.71KForm 4
Aug 31, 2026Esaka FumihideChief Executive OfficerSale5,899$335.45KForm 4
Aug 31, 2026Esaka FumihideChief Executive OfficerOption exercise13,500$109.62KForm 4
Aug 27, 2026Hanson Scott McLeanChief Technology OfficerSale4,910$296.18KForm 4
Aug 27, 2026Hanson Scott McLeanChief Technology OfficerSale22,590$1.35MForm 4
Aug 27, 2026Hanson Scott McLeanChief Technology OfficerOption exercise27,500$223.30KForm 4
Aug 26, 2026Hanson Scott McLeanChief Technology OfficerSale27,500$1.64MForm 4
Aug 26, 2026Hanson Scott McLeanChief Technology OfficerOption exercise27,500$223.30KForm 4
Aug 26, 2026Hanson Scott McLeanChief Technology OfficerOption exercise10,000$81.20KForm 4
Aug 14, 2026Esaka FumihideChief Executive OfficerSale1,500$97.89KForm 4
Aug 14, 2026Esaka FumihideChief Executive OfficerSale10,718$690.20KForm 4
Aug 14, 2026Esaka FumihideChief Executive OfficerSale1,282$81.13KForm 4
Aug 14, 2026Esaka FumihideChief Executive OfficerOption exercise13,500$109.62KForm 4
Aug 14, 2026Hanson Scott McLeanChief Technology OfficerSale800$52.24KForm 4
Aug 14, 2026Hanson Scott McLeanChief Technology OfficerSale5,400$347.79KForm 4
Aug 14, 2026Hanson Scott McLeanChief Technology OfficerSale800$50.60KForm 4
Aug 14, 2026Hanson Scott McLeanChief Technology OfficerOption exercise7,000$56.84KForm 4
Jun 8, 2026TAUTGES JOSEPH ADirectorAward4,957—Form 4
Jun 8, 2026Chen TimothyDirectorAward4,957—Form 4
Jun 8, 2026HSIEH Wen HsuanDirectorAward4,957—Form 4
Jun 8, 2026ZHANG KERDirectorAward4,957—Form 4
Jun 8, 2026Banks Bernard BennettDirectorAward4,957—Form 4
Jun 2, 2026Winzeler Jeffrey GChief Financial OfficerOption exercise5,952$99.99KForm 4
May 27, 2026Chen TimothyDirectorSale3,264$266.24KForm 4
May 27, 2026Chen TimothyDirectorSale20,666$1.67MForm 4
May 27, 2026Chen TimothyDirectorSale24,248$1.93MForm 4
May 27, 2026Chen TimothyDirectorSale22,414$1.77MForm 4
May 15, 2026Chen Sean ChihhsiangPresident and COOSale23,334$1.67MForm 4
May 15, 2026Chen Sean ChihhsiangPresident and COOSale32,351$2.28MForm 4
May 15, 2026Chen Sean ChihhsiangPresident and COOOption exercise55,685$327.43KForm 4
May 15, 2026Hanson Scott McLeanChief Technology OfficerOption exercise8,100$65.77KForm 4
May 15, 2026Winzeler Jeffrey GChief Financial OfficerOption exercise5,952$99.99KForm 4
May 15, 2026Esaka FumihideChief Executive OfficerOption exercise14,537$183.17KForm 4
May 15, 2026Esaka FumihideChief Executive OfficerOption exercise45,463$369.16KForm 4
May 14, 2026Hanson Scott McLeanChief Technology OfficerSale200$14.10KForm 4
May 14, 2026Hanson Scott McLeanChief Technology OfficerSale6,100$424.52KForm 4
May 14, 2026Hanson Scott McLeanChief Technology OfficerSale3,900$267.63KForm 4
May 14, 2026Hanson Scott McLeanChief Technology OfficerOption exercise10,200$82.82KForm 4
May 14, 2026Winzeler Jeffrey GChief Financial OfficerSale82$5.79KForm 4
May 14, 2026Winzeler Jeffrey GChief Financial OfficerSale25,918$1.81MForm 4
May 14, 2026Winzeler Jeffrey GChief Financial OfficerOption exercise26,000$436.80KForm 4
May 14, 2026Esaka FumihideChief Executive OfficerSale60,000$4.20MForm 4
May 14, 2026Esaka FumihideChief Executive OfficerOption exercise60,000$487.20KForm 4
Apr 2, 2026Connors Michele KimGeneral CounselSale151$4.02KForm 4
Apr 2, 2026Connors Michele KimGeneral CounselSale660$17.19KForm 4
Mar 6, 2026Esaka FumihideChief Executive OfficerAward160,616—Form 4
Mar 6, 2026Connors Michele KimGeneral CounselAward32,123—Form 4
Mar 6, 2026Esaka FumihideChief Executive OfficerAward160,616—Form 4
Mar 6, 2026Connors Michele KimGeneral CounselAward32,123—Form 4
Mar 6, 2026Hanson Scott McLeanChief Technology OfficerAward80,308—Form 4
Mar 6, 2026Chen Sean ChihhsiangPresident and COOAward64,246—Form 4
Mar 6, 2026Winzeler Jeffrey GChief Financial OfficerAward41,728—Form 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4

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