Welcome to our dedicated page for Ambarella SEC filings (Ticker: AMBA), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Ambarella, Inc. (NASDAQ: AMBA) SEC filings page on Stock Titan aggregates the company’s regulatory disclosures from the U.S. Securities and Exchange Commission, alongside AI-powered tools to help interpret them. Ambarella describes itself in these filings as a Cayman Islands company whose ordinary shares trade on the Nasdaq Global Select Market under the symbol AMBA, and as an edge AI semiconductor company focused on low-power systems-on-chip (SoCs) for edge AI and human vision applications.
Key filings for Ambarella include its annual reports on Form 10-K and quarterly reports on Form 10-Q, which provide detailed information on its business, risk factors, financial statements and edge AI strategy. Current reports on Form 8-K document material events such as the release of quarterly financial results and certain management changes. For example, recent 8-K filings reference the announcement of fiscal 2026 quarterly results and the voluntary resignation of the company’s Chief Technology Officer from that role and from the board, with a transition to a part-time Chief Technology Advisor position.
These filings also describe Ambarella’s use of non-GAAP financial measures, including non-GAAP gross margin and non-GAAP net income or loss, and provide reconciliations to the closest GAAP metrics. Risk disclosures in the filings discuss factors that could affect Ambarella’s performance, such as global economic conditions, customer adoption of products incorporating its SoCs, competition and the company’s ability to develop and monetize advanced AI and computer vision technologies.
On Stock Titan, investors can review Ambarella’s 10-K and 10-Q reports, 8-K current reports and related exhibits, with AI-generated summaries that highlight important sections and explain complex terminology. The platform also surfaces new filings in near real time as they appear on EDGAR, helping users track changes in Ambarella’s financial condition, governance and edge AI business disclosures without reading every page manually.
Ambarella, Inc. (AMBA) – Form 4 Insider Transaction
Chief Operating Officer Chan W. Lee filed a Form 4 reporting a sale of 1,601 ordinary shares on 17 June 2025 at an average price of $52.26. The disclosure states the shares were sold to satisfy tax obligations arising from the vesting of restricted stock units (RSUs). Following the transaction, Lee’s direct ownership stands at 128,696 shares.
No derivative securities were involved and no Rule 10b5-1 trading plan was indicated in the filing. The sale represents roughly 1.2 % of Lee’s reported holdings, a level generally considered routine for tax-withholding purposes rather than a material reduction in economic exposure.
Given the modest size and stated purpose of the disposition, the filing is unlikely to materially affect Ambarella’s investment thesis or signal a strategic shift by management.
Leslie Kohn, Chief Technology Officer and Director of Ambarella (AMBA), reported a sale of 1,715 ordinary shares on June 17, 2025, at a price of $52.26 per share. The transaction was specifically executed to cover tax obligations arising from the vesting of restricted stock units.
Following the reported transaction, Kohn maintains direct beneficial ownership of 979,677 shares of Ambarella. This Form 4 filing indicates the executive continues to hold a significant equity position in the company despite the tax-related sale.
- Transaction was executed under tax obligation requirements, not discretionary selling
- Kohn serves dual roles as both CTO and Director
- Filing was completed through attorney-in-fact Michael Morehead on June 20, 2025
- No derivative securities were involved in this transaction
Ambarella, Inc. (symbol AMBA) has filed a Form 4 detailing a minor insider transaction by Senior Vice President, Systems, Chi-Hong Ju. On 06/17/2025 the executive sold 1,108 ordinary shares of AMBA at $52.26 per share, for gross proceeds of roughly $57.9 thousand. A single explanatory note states the shares were sold strictly to cover tax withholding obligations associated with the vesting of restricted stock units (RSUs).
After completing the sale, Mr. Ju still directly owns 171,032 ordinary shares and indirectly holds 8,000 additional shares through a foundation, leaving more than 99 % of his prior direct stake intact. The filing shows no derivative security activity and no indication that the trade occurred under a Rule 10b5-1 plan.
The sale represents less than 1 % of Mr. Ju’s direct holdings and appears routine. No operational, strategic, or earnings-related information is provided in this document, and there are no indications of broader insider sentiment shifts.
Ambarella, Inc. (AMBA) – Form 4 insider transaction
CEO and Director Feng-Ming Wang reported a sale of 4,677 ordinary shares on 06/17/2025, coded “S” for disposal. The shares were sold at $52.26 each, implying proceeds of roughly $0.24 million. The filing notes that the shares were "sold to pay tax obligations resulting from the vesting of restricted stock units", indicating a routine tax-withholding sale rather than a discretionary liquidation.
Following the transaction, Wang’s direct ownership stands at 793,634 shares, meaning the sale reduced his stake by less than 1%. No derivative transactions or additional equity awards were reported in Table II. The filing was signed by an attorney-in-fact on 06/20/2025 and reflects a single-person filing.
From an investment-impact standpoint, the transaction is small relative to Wang’s remaining holdings and does not, by itself, signal a strategic shift or fundamental change at Ambarella. Nevertheless, investors often monitor Form 4 filings for sentiment cues; repeated or larger-scale sales could draw more attention, but this isolated, tax-related sale is likely immaterial to the company’s valuation.