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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 8 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
8 filings
5 insiders, $3.86M in total
Insiders trading
5
Net value
−$3.86M
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
Mar 20, 2024 (view filing)Mar 182 daysDay ChristopherVP, MarketingSSale−416$49.27−$20.5K−1.7%23.5K after
Mar 20, 2024 (view filing)Mar 182 daysLee Chan WChief Operating OfficerSSale−1.07K$49.27−$53.0K−0.9%124.1K after
Mar 20, 2024 (view filing)Mar 182 daysKohn LeslieChief Technology OfficerSSale−1.20K$49.27−$59.0K−0.1%964.7K after
Mar 20, 2024 (view filing)Mar 182 daysJu Chi-HongSr. Vice President, SystemsSSale−778$49.27−$38.3K−0.4%184.4K after
Mar 20, 2024 (view filing)Mar 182 daysWang Feng-MingCEOSSale−2.17K$49.27−$107.1K−0.3%806.6K after
Mar 11, 2024 (view filing)Mar 83 daysYoung John AlexanderCFOSSale−704$57.16−$40.2K−0.6%108.9K after
Mar 11, 2024 (view filing)Mar 83 daysDay ChristopherVP, MarketingSSale−302$57.16−$17.3K−1.3%23.7K after
Mar 11, 2024 (view filing)Mar 83 daysLee Chan WChief Operating OfficerSSale−642$57.16−$36.7K−0.5%125.0K after
Mar 11, 2024 (view filing)Mar 83 daysKohn LeslieChief Technology OfficerSSale−708$57.16−$40.5K−0.1%965.9K after
Mar 11, 2024 (view filing)Mar 83 daysJu Chi-HongSr. Vice President, SystemsSSale−509$57.16−$29.1K−0.3%185.0K after
Mar 11, 2024 (view filing)Mar 83 daysWang Feng-MingCEOSSale−1.30K$57.16−$74.1K−0.2%808.6K after
Dec 27, 2023 (view filing)Dec 261 dayPaisley Christopher BDirectorSSale−500$63.14−$31.6K−1.3%39.4K after10b5-1
Dec 21, 2023 (view filing)Dec 192 daysWhite Brian CCFOSSale−3.36K$63.04−$211.6K−4.3%74.1K after
Dec 21, 2023 (view filing)Dec 192 daysDay ChristopherVP, MarketingSSale−360$63.04−$22.7K−2.2%16.0K after
Dec 21, 2023 (view filing)Dec 192 daysLee Chan WChief Operating OfficerSSale−1.52K$63.04−$95.8K−1.5%101.3K after
Dec 21, 2023 (view filing)Dec 192 daysKohn LeslieChief Technology OfficerSSale−1.71K$63.04−$108.0K−0.2%940.5K after
Dec 21, 2023 (view filing)Dec 192 daysJu Chi-HongSr. Vice President, SystemsSSale−1.07K$63.04−$67.7K−0.6%168.4K after
Dec 21, 2023 (view filing)Dec 192 daysWang Feng-MingCEOSSale−3.09K$63.04−$195.0K−0.4%760.6K after
Dec 21, 2023 (view filing)Dec 183 daysLateSchwarting Elizabeth MDirectorSSale−804$62.46−$50.2K−11.2%6.40K after
Dec 8, 2023 (view filing)Dec 62 daysRichardson David JeffreyDirectorSSale−8.06K$58.75−$473.3K−26.4%22.4K after
Sep 20, 2023 (view filing)Sep 182 daysWhite Brian CCFOSSale−3.27K$57.30−$187.6K−4.1%77.5K after
Sep 20, 2023 (view filing)Sep 182 daysDay ChristopherVP, MarketingSSale−351$57.30−$20.1K−2.1%16.3K after
Sep 20, 2023 (view filing)Sep 182 daysLee Chan WChief Operating OfficerSSale−1.48K$57.30−$85.0K−1.4%102.9K after
Sep 20, 2023 (view filing)Sep 182 daysKohn LeslieChief Technology OfficerSSale−1.67K$57.30−$95.7K−0.2%942.2K after
Sep 20, 2023 (view filing)Sep 182 daysJu Chi-HongSr. Vice President, SystemsSSale−1.05K$57.30−$60.1K−0.6%169.5K after
Sep 20, 2023 (view filing)Sep 182 daysWang Feng-MingCEOSSale−3.02K$57.30−$173.0K−0.4%763.7K after
Sep 15, 2023 (view filing)Sep 141 daySchwarting Elizabeth MDirectorSSale−777$58.57−$45.5K−9.7%7.21K after
Jul 14, 2023 (view filing)Jul 122 daysDay ChristopherVP, MarketingSSale−2.29K$82.50−$188.5K−12.1%16.5K after
Jul 10, 2023 (view filing)Jul 73 daysJu Chi-HongSr. Vice President, SystemsSSale−4.25K$81.81−$347.8K−2.4%170.3K after
Jun 20, 2023 (view filing)Jun 20Same dayWhite Brian CCFOSSale−3.30K$84.80−$279.6K−3.9%80.8K after
Jun 20, 2023 (view filing)Jun 20Same dayDay ChristopherVP, MarketingSSale−354$84.80−$30.0K−1.8%18.8K after
Jun 20, 2023 (view filing)Jun 20Same dayLee Chan WChief Operating OfficerSSale−1.49K$84.80−$126.5K−1.4%104.2K after
Jun 20, 2023 (view filing)Jun 20Same dayKohn LeslieChief Technology OfficerSSale−1.68K$84.80−$142.6K−0.2%943.8K after
Jun 20, 2023 (view filing)Jun 20Same dayJu Chi-HongSr. Vice President, SystemsSSale−1.01K$84.80−$86.1K−0.6%174.6K after
Jun 20, 2023 (view filing)Jun 20Same dayWang Feng-MingCEOSSale−3.04K$84.80−$257.7K−0.4%766.5K after
Jun 20, 2023 (view filing)Jun 164 daysSchwarting Elizabeth MDirectorSSale−1.32K$85.76−$113.5K−21.7%4.77K after10b5-1
Jun 14, 2023 (view filing)Jun 131 dayDay ChristopherVP, MarketingSSale−3.00K$86.94−$260.8K−21.7%10.8K after
Jun 12, 2023 (view filing)Jun 93 daysDay ChristopherVP, MarketingSSale−4.29K$82.97−$355.6K−23.7%13.8K after
Jun 9, 2023 (view filing)Jun 81 dayJu Chi-HongSr. Vice President, SystemsSSale−4.17K$82.62−$344.1K−2.6%157.8K after
Jun 6, 2023 (view filing)Jun 51 dayChen Yun-LungVP, Business DevelopmentSSale−8.98K$76.80−$690.0K−16.7%44.7K after
Apr 14, 2023 (view filing)Apr 131 dayDay ChristopherVP, MarketingSSale−3.67K$69.24−$254.5K−16.9%18.1K after
Mar 17, 2023 (view filing)Mar 17Same dayWhite Brian CCFOSSale−10.6K$76.85−$811.1K−50.4%10.4K after
Mar 17, 2023 (view filing)Mar 17Same dayDay ChristopherVP, MarketingSSale−2.42K$76.85−$186.0K−10.0%21.8K after
Mar 17, 2023 (view filing)Mar 17Same dayLee Chan WChief Operating OfficerSSale−9.43K$76.85−$724.7K−10.5%80.4K after
Mar 17, 2023 (view filing)Mar 17Same dayKohn LeslieChief Technology OfficerSSale−11.9K$76.85−$913.1K−1.3%917.7K after
Mar 17, 2023 (view filing)Mar 17Same dayJu Chi-HongSr. Vice President, SystemsSSale−4.40K$76.85−$338.3K−2.6%162.0K after
Mar 17, 2023 (view filing)Mar 17Same dayWang Feng-MingCEOSSale−16.6K$76.85−$1.28M−2.3%718.2K after
Mar 17, 2023 (view filing)Mar 161 daySchwarting Elizabeth MDirectorSSale−234$75.77−$17.7K−4.9%4.53K after
Mar 10, 2023 (view filing)Mar 91 dayWhite Brian CCFOSSale−1.22K$82.25−$100.7K−56.5%944 after
Mar 10, 2023 (view filing)Mar 91 dayDay ChristopherVP, MarketingSSale−358$82.25−$29.4K−2.1%17.1K after