Director — Michael Burns, Benjamin Holzman, Thomas Schodorf, Reeny Sondhi, Maria Barrett, Julian Waits: The filing discloses the coordinated resignation of four directors and the immediate appointment of two new directors, which constitutes a routine board composition change rather than the loss of a senior executive officer.

Costs Associated with Exit or Disposal Activities. On August 7, 2026 , the board of directors of the Company approved a restructuring plan that is designed to simplify the Company's operations, align resources and investments with its core platform, and create capacity to reinvest in capabilities and solutions that improve the customer experience and strengthen the Company's competitive position (collectively, the “ 2026 Restructuring Plan ”). The 2026 Restructuring Plan includes a reduction…

and in the accompanying Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.

Chief Executive Officer — Wael Mohamed: Wael Mohamed was promoted to Chief Executive Officer, succeeding Corey Thomas who became the Executive Chairman.

and in the accompanying Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.

Entry into a Material Definitive Agreement. On March 26, 2026, Rapid7, Inc. (“ Company ”) entered into a Nomination and Support Agreement (the “ Nomination and Support Agreement ”) with JANA Partners Management, LP (together with its controlled affiliates and controlled associates, “ JANA ”). In accordance with the Nomination and Support Agreement, the Company has agreed to include Kevin Galligan (the “ JANA Nominee ”) in the Company’s slate of recommended nominees for election as directors a…

and in the accompanying Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.

Director — Mr. Michael Berry: Mr. Michael Berry decided not to stand for re-election to the Board at the Company’s 2026 Annual General Meeting of Shareholders.

Chief Financial Officer — Rafe Brown: The company appointed Rafe Brown as the new Chief Financial Officer, effective December 1, 2025.

and in the accompanying Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.

and in the accompanying Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.

Chief Financial Officer — Tim Adams: Tim Adams, the Chief Financial Officer, is retiring and will be succeeded by a new CFO.

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under

Entry Into a Material Definitive Agreement. On June 25, 2025 (the “Closing Date”), Rapid7, Inc., a Delaware corporation (the “Company”), entered into a credit agreement (the “Credit Agreement”), by and among the Company, Rapid7 LLC, a Delaware limited liability company (together with the Company, the “Borrowers”, and each individually a “Borrower”), the lenders party thereto (the “Lenders”) and JPMorgan Chase Bank, N.A., as administrative agent. The Credit Agreement establishes a senior secur…

and in the accompanying Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.

Director: The appointments of Messrs. Mohamed, Burns, and Galligan as directors are routine board elections.

Chief People Officer — Christina Luconi: Christina Luconi resigned from her position as Chief People Officer.

Entry into a Material Definitive Agreement. On March 21, 2025, Rapid7, Inc. (“ Company ”) entered into a Cooperation Agreement (the “ Cooperation Agreement ”) with JANA Partners Management, LP (together with its controlled affiliates and controlled associates, “ JANA ”). In accordance with the Cooperation Agreement and the Company’s Amended and Restated Bylaws, the Company agreed to (i) expand the size of the Board from eight (8) to eleven (11) directors, and (ii) appoint, effective no later…

The disclosure is incomplete and does not provide specific details about any management change.

and in the accompanying Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.

Chief People Officer — Christina Luconi: Christina Luconi resigned as Chief People Officer but will serve in an advisory capacity for six months.

and in the accompanying Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.

and in the accompanying Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.

Results of Operations and Financial Condition. As of July 9, 2024, Rapid7, Inc. (the “ Company ”) issued a press release announcing preliminary financial results for the fiscal quarter ended June 30, 2024 and certain organizational changes. The Company’s press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. These preliminary financial results are based on the Company’s current estimate of its results for the quarter ended June 30, 2024, and remain subject to change ba…

President and Chief Operating Officer — Andrew Burton: Andrew Burton resigned from his positions to pursue a chief executive officer role at another company.