<SEC-DOCUMENT>0001562088-25-000054-index.html : 20250321 <SEC-HEADER>0001562088-25-000054.hdr.sgml : 20250321 <ACCEPTANCE-DATETIME>20250321185946 ACCESSION NUMBER: 0001562088-25-000054 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250319 FILED AS OF DATE: 20250321 DATE AS OF CHANGE: 20250321 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Hacker Severin CENTRAL INDEX KEY: 0001870272 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40653 FILM NUMBER: 25761918 MAIL ADDRESS: STREET 1: C/O DUOLINGO, INC. STREET 2: 5900 PENN AVE. CITY: PITTSBURGH STATE: PA ZIP: 15206 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Duolingo, Inc. CENTRAL INDEX KEY: 0001562088 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-PREPACKAGED SOFTWARE [7372] ORGANIZATION NAME: 06 Technology IRS NUMBER: 453055872 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 5900 PENN AVE, SECOND FLOOR CITY: PITTSBURGH STATE: PA ZIP: 15206 BUSINESS PHONE: (412) 347-6116 MAIL ADDRESS: STREET 1: 5900 PENN AVE, SECOND FLOOR CITY: PITTSBURGH STATE: PA ZIP: 15206 </SEC-HEADER> <DOCUMENT> <TYPE>4 <SEQUENCE>1 <FILENAME>wk-form4_1742597979.xml <DESCRIPTION>FORM 4 <TEXT> Document 1 - file: wk-form4_1742597979.html
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