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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
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 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 daysKohn LeslieChief Technology OfficerSSale−1.71K$63.04−$108.0K−0.2%940.5K 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 daysDay ChristopherVP, MarketingSSale−360$63.04−$22.7K−2.2%16.0K after
Dec 21, 2023 (view filing)Dec 192 daysWhite Brian CCFOSSale−3.36K$63.04−$211.6K−4.3%74.1K after
Dec 27, 2023 (view filing)Dec 261 dayPaisley Christopher BDirectorSSale−500$63.14−$31.6K−1.3%39.4K after10b5-1
Mar 11, 2024 (view filing)Mar 83 daysWang Feng-MingCEOSSale−1.30K$57.16−$74.1K−0.2%808.6K 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 daysKohn LeslieChief Technology OfficerSSale−708$57.16−$40.5K−0.1%965.9K 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 daysDay ChristopherVP, MarketingSSale−302$57.16−$17.3K−1.3%23.7K after
Mar 11, 2024 (view filing)Mar 83 daysYoung John AlexanderCFOSSale−704$57.16−$40.2K−0.6%108.9K after
Mar 20, 2024 (view filing)Mar 182 daysWang Feng-MingCEOSSale−2.17K$49.27−$107.1K−0.3%806.6K 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 daysKohn LeslieChief Technology OfficerSSale−1.20K$49.27−$59.0K−0.1%964.7K 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 daysDay ChristopherVP, MarketingSSale−416$49.27−$20.5K−1.7%23.5K after
Mar 20, 2024 (view filing)Mar 182 daysYoung John AlexanderCFOSSale−1.55K$49.27−$76.2K−1.4%107.6K after
Mar 21, 2024 (view filing)Mar 201 daySchwarting Elizabeth MDirectorSSale−240$49.47−$11.9K−3.7%6.16K after
Jun 11, 2024 (view filing)Jun 7-104 daysJu Chi-HongSr. Vice President, SystemsSSale−4.19K$57.11−$239.4K−2.3%180.3K after2 lots
Jun 20, 2024 (view filing)Jun 173 daysSchwarting Elizabeth MDirectorSSale−230$55.56−$12.8K−3.7%5.93K after
Jun 20, 2024 (view filing)Jun 182 daysWang Feng-MingCEOSSale−3.06K$55.48−$169.7K−0.4%803.6K after
Jun 20, 2024 (view filing)Jun 182 daysJu Chi-HongSr. Vice President, SystemsSSale−1.06K$55.48−$58.8K−0.6%179.2K after
Jun 20, 2024 (view filing)Jun 182 daysKohn LeslieChief Technology OfficerSSale−1.62K$55.48−$90.0K−0.2%963.0K after
Jun 20, 2024 (view filing)Jun 182 daysLee Chan WChief Operating OfficerSSale−1.50K$55.48−$83.4K−1.2%122.6K after
Jun 20, 2024 (view filing)Jun 182 daysDay ChristopherVP, MarketingSSale−487$55.48−$27.0K−2.1%23.0K after
Jun 20, 2024 (view filing)Jun 182 daysYoung John AlexanderCFOSSale−2.16K$55.48−$119.7K−2.0%105.4K after
Jun 24, 2024 (view filing)Jun 213 daysJu Chi-HongSr. Vice President, SystemsSSale−8.90K$55.53−$494.2K−4.7%179.2K after
Jun 27, 2024 (view filing)Jun 261 dayJu Chi-HongSr. Vice President, SystemsSSale−6.00K$52.90−$317.4K−3.3%173.2K after
Jul 10, 2024 (view filing)Jul 82 daysDay ChristopherVP, MarketingSSale−1.41K$61.66−$86.8K−6.1%21.6K after
Sep 5, 2024 (view filing)Sep 32 daysChen Yun-LungVP, Business DevelopmentSSale−5.96K$57.56−$343.2K−8.8%62.0K after
Sep 6, 2024 (view filing)Sep 4-52 daysWang Feng-MingCEOSSale−36.0K$54.87−$1.98M−4.3%803.6K after2 lots
Sep 18, 2024 (view filing)Sep 162 daysSchwarting Elizabeth MDirectorSSale−240$53.16−$12.8K−2.6%9.07K after
Sep 19, 2024 (view filing)Sep 172 daysWang Feng-MingCEOSSale−4.30K$53.54−$230.3K−0.5%799.5K after
Sep 19, 2024 (view filing)Sep 172 daysJu Chi-HongSr. Vice President, SystemsSSale−1.05K$53.54−$56.2K−0.6%172.4K after
Sep 19, 2024 (view filing)Sep 172 daysKohn LeslieChief Technology OfficerSSale−1.61K$53.54−$86.1K−0.2%961.4K after
Sep 19, 2024 (view filing)Sep 172 daysLee Chan WChief Operating OfficerSSale−1.49K$53.54−$79.8K−1.2%121.4K after
Sep 19, 2024 (view filing)Sep 172 daysDay ChristopherVP, MarketingSSale−483$53.54−$25.9K−2.2%21.4K after
Sep 19, 2024 (view filing)Sep 172 daysYoung John AlexanderCFOSSale−2.14K$53.54−$114.5K−2.0%103.5K after
Sep 25, 2024 (view filing)Sep 241 daySchwarting Elizabeth MDirectorSSale−913$54.74−$50.0K−10.1%8.15K after
Sep 26, 2024 (view filing)Sep 251 dayPaisley Christopher BDirectorSSale−500$53.71−$26.9K−1.2%42.3K after10b5-1
Oct 4, 2024 (view filing)Oct 31 dayDay ChristopherVP, MarketingSSale−2.90K$58.00−$168.4K−13.6%18.5K after
Dec 3, 2024 (view filing)Dec 21 dayDay ChristopherVP, MarketingSSale−1.28K$71.61−$91.5K−6.9%17.2K after
Dec 10, 2024 (view filing)Dec 91 dayJu Chi-HongSr. Vice President, SystemsSSale−5.12K$75.71−$387.5K−3.1%158.7K after2 lots
Dec 16, 2024 (view filing)Dec 133 daysHon Hsiao-WuenDirectorSSale−377$74.15−$28.0K−1.3%28.3K after
Dec 18, 2024 (view filing)Dec 162 daysWang Feng-MingCEOSSale−4.30K$75.41−$324.0K−0.6%755.2K after
Dec 18, 2024 (view filing)Dec 162 daysJu Chi-HongSr. Vice President, SystemsSSale−1.05K$75.41−$79.0K−0.7%157.6K after
Dec 18, 2024 (view filing)Dec 162 daysKohn LeslieChief Technology OfficerSSale−1.76K$75.41−$132.5K−0.2%959.7K after
Dec 18, 2024 (view filing)Dec 162 daysLee Chan WChief Operating OfficerSSale−1.49K$75.41−$112.2K−1.2%119.9K after