Amplitude(AMPL) - 2025 Q4 - Annual Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2025 OR Registrant's telephone number, including area code: (415) 231-2353 Securities registered pursuant to Section 12(b) of the Act: | Trading | | | | | --- | --- | --- | --- | | Title of each class Name of each exchange on which registered | | Symbol(s) | | | Class A Common Stock, $0.00001 ...