Ambarella, Inc. filings document regulatory disclosures for a Nasdaq-listed edge AI semiconductor company organized in the Cayman Islands, with ordinary shares trading under AMBA. Recent Form 8-K reports cover quarterly and annual results releases, exhibit filings, and material events tied to the company’s public reporting obligations.
The filing record also includes governance and compensation disclosures, including board appointments, director and officer changes, annual bonus plan approvals, executive compensation targets, and related committee actions. These documents provide formal records of Ambarella’s operating-result announcements, securities registration details, board structure, and executive compensation governance.
Ambarella, Inc. reported that it has released a press release detailing its financial results for the third quarter of fiscal year 2026, which ended on October 31, 2025. The press release is provided as Exhibit 99.1 and is incorporated by reference for those results.
The company also announced that Leslie Kohn has voluntarily resigned, effective immediately, from his roles as a member of the Board of Directors and as Chief Technology Officer for strictly personal reasons. He will remain with Ambarella in a part-time role as Chief Technology Advisor, where he will continue to provide direction on the company’s technology strategy and product roadmap.
Ambarella (AMBA): Insider transaction disclosed. Senior VP, Systems & GM, Asia, Chi-Hong Ju reported open‑market sales of company stock on two dates. He sold 5,057 shares at $81.2919 on 10/13/2025 and 6,156 shares at $80.96 on 10/14/2025. Following these transactions, he beneficially owned 158,874 shares directly. He also reports 8,000 shares held indirectly by a foundation.
Elizabeth M. Schwarting, a director of Ambarella Inc. (AMBA), reported a sale of 2,664 ordinary shares on 10/06/2025 at a weighted average price of $85.3772 per share (range $85.25 to $85.38). After the transaction she beneficially owned 7,314 shares, held directly. The Form 4 was filed indicating the sale was executed on 10/06/2025 and the filing was signed by an attorney‑in‑fact on 10/08/2025. The filing does not state a 10b5‑1 plan or provide reasons for the sale.
Ambarella, Inc. filed a Form 144 notifying a proposed sale of 2,664 common shares with an aggregate market value of $227,444.59. The shares are scheduled for sale approximately on 10/06/2025 on NASDAQ. The filing lists six restricted‑stock grants from the issuer dated between 12/15/2020 and 09/15/2025 that together total the 2,664 shares to be sold, and shows no securities sold by the reporting person in the past three months. The notice includes the standard representation that the seller is not aware of undisclosed material adverse information about the issuer.
Form 144 notice for AMBARELLA INC (AMBA): An officer/insider intends to sell 1,000 common shares on 09/22/2025 via Morgan Stanley Smith Barney LLC, with an aggregate market value listed at $89,000. The 1,000 shares were acquired as performance shares on 03/15/2021 and paid for on that date. The filing also discloses prior insider sales in the past three months totaling 6,869 shares for gross proceeds of $525,974.75 across five transactions dated 07/14/2025 through 09/19/2025. The filer certifies no undisclosed material adverse information. The table lists the broker, planned sale date, and securities exchange (NASDAQ).
John A. Young, who serves as an officer and director at Ambarella, reported a small sale and updated holdings. He disposed of 2,566 ordinary shares on 09/17/2025 at a price of $79.43 per share; the filing explains those shares were sold to pay tax obligations arising from the vesting of restricted stock units. After that transaction and recent activity, he beneficially owns 109,108 ordinary shares, which the filer notes includes 223 shares acquired under the company’s employee stock purchase plan on 09/15/2025. The Form 4 was signed by an attorney-in-fact on behalf of Mr. Young.
Chan W. Lee, Chief Operating Officer of Ambarella, reported a sale of 1,947 ordinary shares on 09/17/2025 at a price of $79.43 per share to cover tax obligations arising from the vesting of restricted stock units. After the sale, Mr. Lee beneficially owns 126,972 shares, which includes 223 shares acquired under the company's employee stock purchase plan on 09/15/2025. The Form 4 was filed as a single reporting person filing and bears a signature by an attorney-in-fact on 09/19/2025.
Leslie Kohn, Chief Technology Officer and director of Ambarella, reported a small sale of company stock on 09/17/2025. The filing shows 2,249 ordinary shares were sold at $79.43 per share under transaction code S, with the stated purpose that the shares were sold to pay tax obligations arising from restricted stock unit vesting.
After the sale, the filing reports 977,428 shares beneficially owned by Kohn. The transaction appears routine and limited in size relative to the reported holdings.
Chi-Hong Ju, Senior Vice President, Systems at Ambarella Inc (AMBA), reported a sale of 1,168 ordinary shares on 09/17/2025 at a price of $79.43 per share to cover tax obligations arising from the vesting of restricted stock units. After the transaction Mr. Ju directly beneficially owns 170,087 ordinary shares and indirectly holds 8,000 shares through a foundation. The filing also notes Mr. Ju acquired 223 shares under the company’s employee stock purchase plan on 09/15/2025. The Form 4 was signed by an attorney-in-fact on behalf of Mr. Ju on 09/19/2025.
Filing snapshot: AMBARELLA INC director and CEO Feng-Ming Wang reported a sale of 4,928 ordinary shares on 09/17/2025 at $79.43 per share. The filing states the sale was to pay tax obligations arising from the vesting of restricted stock units. After the transaction, Mr. Wang beneficially owned 788,929 shares, which the filing notes includes 223 shares purchased under the companys employee stock purchase plan on 09/15/2025.