Insider Trading April 17, 2026 08:37 PM

System1 CFO Makes $80,730 Stock Purchase Amid Deepening Share Decline

Tridivesh Kidambi adds 26,910 Class A shares as company posts supplemental Q4 2025 materials; stock remains sharply lower over multiple horizons

By Leila Farooq SST
System1 CFO Makes $80,730 Stock Purchase Amid Deepening Share Decline
SST

System1, Inc. Chief Financial Officer Tridivesh Kidambi purchased 26,910 Class A shares on April 15, 2026, at $3.00 per share, a transaction valued at $80,730. The acquisition occurred while System1's stock was trading at $2.15 and after marked declines over the past week and six months. The company also posted supplemental fourth-quarter 2025 financial information that it has made available on its investor relations site but has clarified is not filed under Section 18 of the Securities Exchange Act.

Key Points

  • System1 CFO Tridivesh Kidambi acquired 26,910 Class A shares at $3.00 per share on April 15, 2026, worth $80,730.
  • Following the transaction and a tax withholding of 301 shares at $2.26 per share, Kidambi directly holds 146,515 shares, including 52,514 unvested RSUs; System1's market cap is $21.14 million.
  • System1 published supplemental Q4 2025 financial information on its investor relations site and via an SEC-filed press release, clarifying the materials are for informational use only and are not filed under Section 18 nor incorporated by reference into the current report.

System1, Inc. (NASDAQ: SST) reported an insider purchase by Chief Financial Officer Tridivesh Kidambi who acquired 26,910 shares of Class A Common Stock on April 15, 2026, at a price of $3.00 per share. The total cash value of the purchase was $80,730.

The transaction was disclosed in a Form 4 filing with the Securities and Exchange Commission. The filing also shows that 301 shares were withheld from the transaction to satisfy tax obligations at an effective price of $2.26 per share, representing $680 in withheld value.

Following these moves, Kidambi's direct ownership in System1 stands at 146,515 shares, a total that includes 52,514 restricted stock units that remain unvested. At the time of the purchase, System1's shares were trading at $2.15, a level that reflects a 16% decline over the prior week and a 68.5% drop over the past six months. The company's market capitalization is reported at $21.14 million.

Separately, System1 released supplemental financial information for the fourth quarter ended December 31, 2025. The company posted the materials on its investor relations website and issued a press release filed with the SEC. System1 emphasized that the supplemental disclosures are provided for informational purposes and are not considered filed under Section 18 of the Securities Exchange Act of 1934. The company further clarified that the materials on its website are not incorporated by reference into the current report.

Investors are able to access the supplemental documents to obtain additional detail on System1's quarterly performance. The company characterized the release as part of its ongoing effort to maintain transparency with shareholders.


Context and immediate facts

  • Purchase: 26,910 Class A shares at $3.00 per share on April 15, 2026; total $80,730.
  • Taxes withheld: 301 shares at $2.26 per share, totaling $680.
  • Post-transaction stake: 146,515 shares owned directly, including 52,514 unvested RSUs.
  • Market snapshot: shares trading at $2.15; down 16% over the last week and down 68.5% over six months; market cap $21.14 million.
  • Corporate disclosure: supplemental Q4 2025 materials posted but not filed under Section 18 and not incorporated by reference into the current report.

The Form 4 filing and the company-issued supplemental materials provide the factual record of the insider purchase and the nature of the financial disclosures made available by System1. The filings and website postings are the primary sources for the transaction and the company's statements about the supplemental information.

Risks

  • Share-price volatility: System1's stock was trading at $2.15, down 16% over the prior week and 68.5% over the last six months, indicating short- and medium-term volatility that can affect investors in small-cap equities.
  • Limited filing status of supplemental materials: The Q4 2025 supplemental information is explicitly not filed under Section 18 of the Securities Exchange Act and is not incorporated by reference into the current report, which could limit legal recourse or formal disclosure status for investors relying on those materials.
  • Small market capitalization: With a reported market capitalization of $21.14 million, System1 is a small-cap company, which may be associated with greater liquidity and market risk for shareholders.

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