MDB: Leadership change · Company disclosure

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. Departure of President and Chief Executive Officer On September 24, 2026, Chirantan (“CJ”) Desai, the President and Chief Executive Officer and principal executive officer under Section 16a-1(f) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and a member of the Board of Directors of MongoDB, Inc. (the “Company”), notified the Company of his intent to resign from his position s with the Company, effective September 28, 2026. Mr. Desai’s decision to resign is not due to any disagreement with the Company or any matter relating to the Company's operations, policies or practices. Appointment of Interim President and Chief Executive Officer On September 26, 2026, the Board appointed Dev Ittycheria as the Company’s Interim President and Chief Executive Officer, effective September 28, 2026 to serve until a successor is duly elected and qualified unless sooner removed. Mr. Ittycheria, age 59, previously served as our President and Chief Executive Officer from September 2014 to November 2025. He has been a member of our board of directors since September 2014. He will continue to serve as a member of the Board of Directors in addition to his role as Interim President and Chief Executive Officer. He currently also serves as a Partner and Senior Advisor at Sequoia Capital, a venture capital firm, a position he has held since September 2026. Prior to joining the Company, Mr. Ittycheria served as a Managing Director at OpenView Venture Partners, a venture capital firm, from October 2013 to September 2014. From February 2012 to June 2013, Mr. Ittycheria served as Venture Partner at Greylock Partners, a ve