Ambarella AMBA Insider Ownership

Updated Oct 16, 2026

Across the past 12 months, open-market trades by Ambarella insiders were all sales, totaling $17.15 million (247.21K shares).

• A count shows 7 insiders selling AMBA stock on the open market over the past 12 months and none buying.
• Feng-Ming Wang (CEO) was AMBA's largest open-market seller in the past 12 months, with $10.07 million of sales (143.05K shares); the latest was on September 17, 2026.
• Christopher B. Paisley (Director) made the most recent open-market trade by an insider of Ambarella, a sale of 250 shares for $17,690 on September 25, 2026.
• Outside the open market, Ambarella insiders received 160.61K shares in stock awards, acquired 109.44K shares through option exercises and conversions and gave away 27.53K shares as gifts over the past 12 months.
• Per Business Quant, AMBA insiders together hold 2.41Mn shares based on their latest Form 4 filings, down 1.48% from 2.45Mn shares at the end of Q2 2026 and down 3.08% from 2.49Mn shares at the end of Q3 2025.
• Ambarella insiders hold 2.38Mn shares directly (98.60% of their total) and 33.81K shares (1.40%) indirectly, through entities such as trusts and partnerships.
• Holdings in Ambarella stock are reported by 14 insiders, the officers, directors and 10% owners who have filed a Form 4 in the past two years.
• Ambarella's three largest insider shareholders, based on their latest Form 4 filings, are Leslie Kohn (Chief Technology Officer, 977.43K shares), Feng-Ming Wang (CEO, 767.76K shares) and Chi-Hong Ju (Senior VP, Systems & GM, 162.15K shares).
• Leslie Kohn alone accounts for 40.54% of the shares held by Ambarella insiders.
• Institutions held 81.74% of Ambarella's outstanding shares in their Q2 2026 13F filings.
• A total of 46 Form 4 filings with transactions in Ambarella stock were made over the past 12 months, by 12 insiders.
• This summary of Ambarella insider activity covers Form 4 filings through September 28, 2026.