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Ambarella Inc

AMBA
Exchange
Nasdaq
Industry
Semiconductors & Related Devices
SEC CIK
0001280263

In the last 90 days, Ambarella Inc insiders filed 0 open-market purchases and 9 sales; 341 institutions reported holding it in 13F filings for Q2 2026, worth $3.13B in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Ambarella Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
9 filings
6 insiders, $3.88M in total
Insiders trading
6
Net value
−$3.88M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Ambarella Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Ambarella Inc
NameTitleLast reported holdingLast filingFilings, past year
Young John AlexanderCFO107,806Sep 21, 20268
Wang Feng-MingCEO767,759Sep 18, 20267
Ju Chi-HongSenior VP, Systems & GM154,153Sep 18, 20269
Lee Chan WChief Operations Officer154,443Sep 18, 20265
Hu ChenmingDirector32,667Sep 10, 20261
Bryant Gregory MDirector5,608Sep 10, 20262
Breithaupt Chantelle YvetteDirector8,091Sep 10, 20261
Schwarting Elizabeth MDirector9,841Sep 10, 20263
Hon Hsiao-WuenDirector33,927Sep 10, 20261
Richardson David JeffreyDirector5,649Sep 10, 20262
Paisley Christopher BDirector44,180Sep 10, 20263
Chen Yun-LungVP, Business Dev. & Marketing60,557Jul 10, 20264
Kohn LeslieChief Technology Officer977,428Sep 19, 20250
Day ChristopherVP, Marketing15,099Jun 20, 20250
De Greef-Safft AnneDirector10,772Aug 30, 20240
White Brian CCFO74,140Dec 21, 20230
Verhalen Andrew WDirector83,734Sep 1, 20230
Eichler Kevin CCFO73,259Mar 18, 20220
Meng Teresa HDirector6,606Mar 18, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Sep 21, 2026 (view filing)5:57 PM ETSep 183 daysYoung John AlexanderCFOSSale−1.90K$67.28−$127.6K−1.7%107.8K after10b5-1
Sep 18, 2026 (view filing)4:51 PM ETSep 171 dayWang Feng-MingCEOSSale−6.09K$64.83−$394.6K−0.8%767.8K after
Sep 18, 2026 (view filing)4:50 PM ETSep 171 dayJu Chi-HongSenior VP, Systems & GMSSale−2.01K$64.83−$130.2K−1.3%154.2K after
Sep 18, 2026 (view filing)4:50 PM ETSep 171 dayLee Chan WChief Operations OfficerSSale−2.89K$64.83−$187.6K−1.8%154.4K after
Sep 18, 2026 (view filing)4:50 PM ETSep 171 dayYoung John AlexanderCFOSSale−3.13K$64.83−$202.7K−2.8%109.7K after
Jul 10, 2026 (view filing)4:55 PM ETJul 91 dayChen Yun-LungVP, Business Dev. & MarketingSSale−5.96K$78.66−$468.7K−9.0%60.6K after
Jul 2, 2026 (view filing)4:58 PM ETJul 11 dayJu Chi-HongSenior VP, Systems & GMSSale−10.0K$88.84−$888.4K−6.0%155.9K after
Jul 2, 2026 (view filing)4:57 PM ETJul 11 dayWang Feng-MingCEOSSale−16.3K$90.08−$1.46M−2.1%773.6K after10b5-1
Jun 30, 2026 (view filing)Jun 264 daysPaisley Christopher BDirectorSSale−250$62.01−$15.5K−0.6%41.0K after10b5-1
Jun 18, 2026 (view filing)Jun 171 dayYoung John AlexanderCFOSSale−5.03K$67.54−$339.9K−4.3%112.6K after2 lots10b5-1
Jun 18, 2026 (view filing)Jun 171 dayLee Chan WChief Operations OfficerSSale−2.95K$67.87−$200.3K−1.8%157.1K after
Jun 18, 2026 (view filing)Jun 171 dayJu Chi-HongSenior VP, Systems & GMSSale−2.02K$67.87−$136.9K−1.2%165.9K after
Jun 18, 2026 (view filing)Jun 171 dayWang Feng-MingCEOSSale−6.20K$67.87−$421.1K−0.8%799.9K after
Jun 16, 2026 (view filing)Jun 124 daysChen Yun-LungVP, Business Development andSSale−9.86K$67.06−$660.9K−12.9%66.5K after
May 28, 2026 (view filing)May 262 daysYoung John AlexanderCFOSSale−400$96.00−$38.4K−0.3%117.6K after10b5-1
May 28, 2026 (view filing)May 262 daysWang Feng-MingCEOSSale−32.5K$91.01−$2.96M−3.9%806.1K after3 lots10b5-1
Apr 22, 2026 (view filing)Apr 211 dayYoung John AlexanderCFOSSale−1.97K$60.00−$118.3K−1.6%117.6K after10b5-1
Mar 19, 2026 (view filing)Mar 17-192 daysYoung John AlexanderCFOSSale−7.62K$53.32−$406.0K−6.0%119.6K after2 lots
Mar 19, 2026 (view filing)Mar 17-192 daysLee Chan WChief Operations OfficerSSale−10.4K$53.25−$552.2K−6.1%160.0K after2 lots
Mar 19, 2026 (view filing)Mar 17-192 daysJu Chi-HongSenior VP, Systems & GM, AsiaSSale−6.88K$53.20−$366.2K−3.9%167.9K after2 lots
Mar 19, 2026 (view filing)Mar 17-192 daysWang Feng-MingCEOSSale−27.1K$53.18−$1.44M−3.1%838.6K after2 lots
Mar 4, 2026 (view filing)Mar 22 daysWang Feng-MingCEOSSale−50.0K$60.80−$3.04M−6.1%769.0K after5 lots10b5-1
Jan 23, 2026 (view filing)Dec 30, 202524 daysJu Chi-HongSenior VP, Systems & GM, AsiaSSale−7.95K$70.25−$558.1K−5.0%149.6K afterAmended
Jan 7, 2026 (view filing)Jan 52 daysJu Chi-HongSenior VP, Systems & GM, AsiaSSale−7.73K$75.58−$584.1K−5.0%146.0K after
Dec 29, 2025 (view filing)Dec 263 daysPaisley Christopher BDirectorSSale−500$72.18−$36.1K−1.2%41.3K after
Dec 19, 2025 (view filing)Dec 17-182 daysYoung John AlexanderCFOSSale−6.37K$72.50−$461.8K−5.8%102.7K after2 lots
Dec 19, 2025 (view filing)Dec 172 daysLee Chan WChief Operations OfficerSSale−2.41K$71.82−$172.8K−1.9%124.6K after
Dec 19, 2025 (view filing)Dec 172 daysJu Chi-HongSenior VP, Systems & GM, AsiaSSale−1.34K$71.82−$96.4K−0.8%157.5K after
Dec 19, 2025 (view filing)Dec 172 daysWang Feng-MingCEOSSale−4.95K$71.82−$355.5K−0.6%784.0K after
Dec 18, 2025 (view filing)Dec 162 daysSchwarting Elizabeth MDirectorSSale−624$72.38−$45.2K−8.5%6.69K after
Oct 15, 2025 (view filing)Oct 13-142 daysJu Chi-HongSenior VP, Systems & GM, AsiaSSale−11.2K$81.11−$909.5K−6.6%158.9K after2 lots
Oct 8, 2025 (view filing)Oct 62 daysSchwarting Elizabeth MDirectorSSale−2.66K$85.38−$227.5K−26.7%7.31K after
Sep 19, 2025 (view filing)Sep 172 daysYoung John AlexanderCFOSSale−2.57K$79.43−$203.8K−2.3%109.1K after
Sep 19, 2025 (view filing)Sep 172 daysLee Chan WChief Operating OfficerSSale−1.95K$79.43−$154.7K−1.5%127.0K after
Sep 19, 2025 (view filing)Sep 172 daysKohn LeslieChief Technology OfficerSSale−2.25K$79.43−$178.6K−0.2%977.4K after
Sep 19, 2025 (view filing)Sep 172 daysJu Chi-HongSr. Vice President, SystemsSSale−1.17K$79.43−$92.8K−0.7%170.1K after
Sep 19, 2025 (view filing)Sep 172 daysWang Feng-MingCEOSSale−4.93K$79.43−$391.4K−0.6%788.9K after
Sep 12, 2025 (view filing)Sep 102 daysChen Yun-LungVP, Business DevelopmentSSale−8.49K$84.42−$716.9K−12.1%61.7K after
Jun 27, 2025 (view filing)Jun 252 daysPaisley Christopher BDirectorSSale−1.00K$62.58−$62.6K−2.5%39.3K after10b5-1
Jun 20, 2025 (view filing)Jun 173 daysYoung John AlexanderCFOSSale−2.44K$52.26−$127.3K−2.1%111.5K after
Jun 20, 2025 (view filing)Jun 173 daysDay ChristopherVP, MarketingSSale−342$52.26−$17.9K−2.2%15.1K after
Jun 20, 2025 (view filing)Jun 173 daysLee Chan WChief Operating OfficerSSale−1.60K$52.26−$83.7K−1.2%128.7K after
Jun 20, 2025 (view filing)Jun 173 daysKohn LeslieChief Technology OfficerSSale−1.72K$52.26−$89.6K−0.2%979.7K after
Jun 20, 2025 (view filing)Jun 173 daysJu Chi-HongSr. Vice President, SystemsSSale−1.11K$52.26−$57.9K−0.6%171.0K after
Jun 20, 2025 (view filing)Jun 173 daysWang Feng-MingCEOSSale−4.68K$52.26−$244.4K−0.6%793.6K after
Mar 26, 2025 (view filing)Mar 251 dayPaisley Christopher BDirectorSSale−500$55.50−$27.8K−1.2%40.3K after
Mar 20, 2025 (view filing)Mar 182 daysYoung John AlexanderCFOSSale−2.10K$55.02−$115.7K−1.8%113.9K after
Mar 20, 2025 (view filing)Mar 182 daysDay ChristopherVP, MarketingSSale−479$55.02−$26.4K−3.0%15.4K after
Mar 20, 2025 (view filing)Mar 182 daysLee Chan WChief Operating OfficerSSale−1.47K$55.02−$80.8K−1.1%130.3K after
Mar 20, 2025 (view filing)Mar 182 daysKohn LeslieChief Technology OfficerSSale−1.58K$55.02−$87.2K−0.2%981.4K after