A Form 4 filed with the SEC on August 17, 2026, shows Matthew Jacobson, a director of Datadog, Inc. (NASDAQ:DDOG), disposed of Class A Common Stock across two trading days, August 13 and August 14, 2026.

Key Highlights

  • Reporting person: Matthew Jacobson, listed as a Director of Datadog, Inc.
  • Total shares disposed: 59,424 shares of Class A Common Stock sold across five transactions on August 13 and August 14, 2026.
  • Price range: Weighted average sale prices ranged from $248.7894 to $256.7448 per share across the five reported transactions.
  • Remaining beneficial ownership: 524,708 shares of Class A Common Stock following all reported transactions, held directly.
  • Ownership structure: According to the filing, shares are held through a trust of which Jacobson is a trustee and another estate planning trust with an independent trustee; Jacobson disclaims beneficial ownership of those trust-held shares except to the extent of his pecuniary interest.
  • Filing date: Signed and filed August 17, 2026.

Details of Jacobson's Class A Common Stock Sales at Datadog

According to the filing, Matthew Jacobson reported five open-market sale transactions (transaction code "S") in Datadog, Inc. Class A Common Stock. On August 13, 2026, three separate sales were recorded: 20,097 shares at a weighted average price of $248.7894, 16,651 shares at a weighted average price of $252.1984, and 3,164 shares at a weighted average price of $253.0124. The filing notes that each reported price is a weighted average, as the shares were sold in multiple transactions across price ranges disclosed in the explanatory footnotes.

On August 14, 2026, two additional sales were reported: 17,867 shares at a weighted average price of $256.2064, and 1,645 shares at a weighted average price of $256.7448. Following all five transactions, the filing states that Jacobson directly beneficially owned 524,708 shares of Class A Common Stock.

The filing includes a footnote stating that the reported shares are held by Jacobson through a trust of which he is a trustee and another estate planning trust with an independent trustee. The filing further states that Jacobson "disclaims beneficial ownership of the shares held by such trusts for purposes of Section 16 of the Exchange Act, except to the extent of his pecuniary interest therein, if any," and that the report "shall not be deemed an admission that the Reporting Person is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose." The filing also notes that full information on the number of shares sold at each separate price within each transaction can be furnished to SEC staff upon request.

What Was Disclosed

The Form 4 discloses five sales of Datadog Class A Common Stock by director Matthew Jacobson on August 13 and 14, 2026, totaling 59,424 shares at weighted average prices between $248.7894 and $256.7448, leaving a reported direct beneficial ownership of 524,708 shares.