What This Nearly $1 Million Ambarella Insider Sale Means With Shares Up 18% in a Year

Jonathan Ponciano, The Motley Fool

Sat, July 4, 2026 at 3:39 PM PDT 4 min read

On July 1, 2026, Ju Chi-Hong, a senior VP at Ambarella (NASDAQ:AMBA), disclosed the sale of 10,000 shares of common stock in an open-market transaction, according to a SEC Form 4 filing.

Transaction summary

Transaction value based on SEC Form 4 reported price ($88.84); post-transaction value based on July 1, 2026 market close.

Key questions

• How does the size of this sale compare to Ju Chi-Hong's historical transaction activity?
  This 10,000-share sale is larger than Ju Chi-Hong's average sell-only transaction size (~3,569 shares) and exceeds the majority of recent transactions, though it remains below the maximum single sale of 11,213 shares recorded since July 2023.

• What impact does this trade have on the insider's overall ownership in Ambarella?
  Direct holdings decreased by 5.75%, leaving Ju Chi-Hong with 155,924 directly held shares and 8,000 indirectly held shares, maintaining a substantial continuing position in the company.

• Was the transaction executed at a premium, and what was the market context at the time?
  The weighted average sale price was around $88.84 per share, compared to a July 1, 2026 market close of $88.34 and an opening price of $83.63, placing the execution price ~6.2% above the session's open and nearly flat to the close.

Company overview

* 1-year performance calculated using July 1st, 2026 as the reference date.

Company snapshot

• Ambarella develops advanced video processing and AI-powered system-on-chip (SoC) solutions for automotive, security, robotics, and consumer electronics applications.

• The firm generates revenue by selling high-performance semiconductor products to OEMs and ODMs, leveraging proprietary video compression and computer vision technology.

• It serves automotive manufacturers, security and surveillance providers, robotics firms, and consumer electronics brands seeking integrated imaging and AI capabilities.

Ambarella, Inc. is a leading semiconductor company specializing in high-definition video processing and AI-based computer vision chips. The company's integrated SoC designs enable superior image quality, low power consumption, and advanced analytics for a broad range of end markets. Ambarella's strategic focus on automotive and security segments, combined with its deep expertise in video and AI, provides a competitive advantage in enabling next-generation intelligent devices.