0001404655 2024-01-01 2024-12-31 0001404655 DEFA14A true HUBSPOT, INC. Explanatory NoteThis proxy supplement, dated May 8, 2025 (this “Supplement”), supplements the definitive proxy statement of HubSpot, Inc. (the “Company”) dated April 24, 2025 (the “Proxy Statement”), for the Company’s 2025 Annual Meeting of Stockholders to be held on June 4, 2025, at 9:00 am Eastern Time (the “Annual Meeting”).