Results of Operations and Financial Condition. On November 4, 2026, Amplitude, Inc. issued a press release announcing its financial results for the three and nine months ended September 30, 2026 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Ex…

Director — Vijaye Raji: The filing discloses the appointment of a new director to a newly created seat, which is a routine board composition change rather than an executive departure.

Results of Operations and Financial Condition. On August 5, 2026, Amplitude, Inc. issued a press release announcing its financial results for the three and six months ended June 30, 2026 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange A…

Results of Operations and Financial Condition. On May 6, 2026, Amplitude, Inc. issued a press release announcing its financial results for the three months ended March 31, 2026 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including 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 o…

President — Thomas Hansen: Thomas Hansen is departing from his role as President with a successor in place.

Results of Operations and Financial Condition. On February 18, 2026, Amplitude, Inc. issued a press release announcing its financial results for the three and twelve months ended December 31, 2025 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “…

Results of Operations and Financial Condition. On November 5, 2025, Amplitude, Inc. issued a press release announcing its financial results for the three and nine months ended September 30, 2025 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Ex…

Results of Operations and Financial Condition. On August 6, 2025, Amplitude, Inc. issued a press release announcing its financial results for the three and six months ended June 30, 2025 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange A…

Director — Eric Vishria: Eric Vishria is resigning from the Board of Directors after a long tenure.

Results of Operations and Financial Condition. On May 7, 2025, Amplitude, Inc. issued a press release announcing its financial results for the three months ended March 31, 2025 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including 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 o…

Entry Into a Material Definitive Agreement. On March 28, 2025, Amplitude, Inc. (the “Company”) entered into a lease agreement (the “Lease”) with KR 201 Third Street Owner, LLC (the “Landlord”), effective as of March 21, 2025, pursuant to which the Company will lease approximately 57,530 square feet of space located at 201 Third Street, San Francisco, California 94103 (the “Premises”). The Company already occupies the Premises pursuant to a sublease between the Company and Postmates, LLC that…

Class I director — Tien Tzuo: Appointment of a new Class I director to the Board.

Results of Operations and Financial Condition. On February 19, 2025, Amplitude, Inc. issued a press release announcing its financial results for the three and twelve months ended December 31, 2024 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “…

Results of Operations and Financial Condition. On November 7, 2024, Amplitude, Inc. issued a press release announcing its financial results for the three and nine months ended September 30, 2024 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Ex…

Results of Operations and Financial Condition. On August 8, 2024, Amplitude, Inc. issued a press release announcing its financial results for the three and six months ended June 30, 2024 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange A…

Chief Financial Officer — Andrew Casey: The company appointed a new Chief Financial Officer from an external candidate.

The filing is about reaffirming financial outlook and not related to management changes.

Results of Operations and Financial Condition. On May 9, 2024, Amplitude, Inc. issued a press release announcing its financial results for the three months ended March 31, 2024 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including 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 o…

Results of Operations and Financial Condition. On February 20, 2024, Amplitude, Inc. issued a press release announcing its financial results for the three and twelve months ended December 31, 2023 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “…

Results of Operations and Financial Condition. On November 7, 2023, Amplitude, Inc. issued a press release announcing its financial results for the three months ended September 30, 2023 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Ac…

Results of Operations and Financial Condition. On August 8, 2023, Amplitude, Inc. (the “Company”) issued a press release announcing its financial results for the three and six months ended June 30, 2023 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended…

Results of Operations and Financial Condition. On May 9, 2023, Amplitude, Inc. (the “Company”) issued a press release announcing its financial results for the three months ended March 31, 2023 (the “Press Release”). A copy of the Press Release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exch…

Base salaries of the Chief Executive Officer and Chief Technology Officer were reduced.

Costs Associated with Exit or Disposal Activities. On April 3, 2023, the Board of Directors of Amplitude, Inc. (the “Company”) approved a plan (the “Plan”) to reduce its global workforce by approximately 13%. The Plan is intended to improve operational efficiencies and reduce operating costs while allowing the Company to scale for the future, continue its path to profitability, and deliver on its long-term vision. The Company estimates that it will incur non-recurring charges of approximately…

Chief Accounting Officer and principal accounting officer — Ninos Sarkis: Mr. Sarkis resigned to pursue another opportunity.