0001883022-26-000014.txt : 20260603 0001883022-26-000014.hdr.sgml : 20260603 20260603171717 ACCESSION NUMBER: 0001883022-26-000014 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20260601 FILED AS OF DATE: 20260603 DATE AS OF CHANGE: 20260603 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Liu Curtis CENTRAL INDEX KEY: 0001883022 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40817 FILM NUMBER: 261062035 MAIL ADDRESS: STREET 1: C/O AMPLITUDE, INC. STREET 2: 201 THIRD STREET, SUITE 200 CITY: SAN FRANCISCO STATE: CA ZIP: 94103 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Amplitude, Inc. CENTRAL INDEX KEY: 0001866692 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-PREPACKAGED SOFTWARE [7372] ORGANIZATION NAME: 06 Technology EIN: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 201 THIRD STREET, SUITE 200 CITY: SAN FRANCISCO STATE: CA ZIP: 94103 BUSINESS PHONE: (415) 231-2353 MAIL ADDRESS: STREET 1: 201 THIRD STREET, SUITE 200 CITY: SAN FRANCISCO STATE: CA ZIP: 94103 4 1 primarydocument.xml PRIMARY DOCUMENT X0609 4 2026-06-01 false 0001866692 Amplitude, Inc. AMPL 0001883022 Liu Curtis false C/O AMPLITUDE, INC. 201 THIRD ST., SUITE 200 SAN FRANCISCO CA 94103 true true true false Chief Technology Officer true Class A Common Stock 2026-06-01 4 S false 22201.00 8.0259 D 1004779.00 D The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 26, 2025. This transaction was executed in multiple trades at prices ranging from $8.0000 to $8.0600. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Includes 880,520 restricted stock units. /s/ Elizabeth Fisher, as attorney in fact for Curtis Liu 2026-06-03