<SEC-DOCUMENT>0001628280-21-014338-index.html : 20210824 <SEC-HEADER>0001628280-21-014338.hdr.sgml : 20210824 <ACCEPTANCE-DATETIME>20210723162611 <PRIVATE-TO-PUBLIC> ACCESSION NUMBER: 0001628280-21-014338 CONFORMED SUBMISSION TYPE: CORRESP PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20210723 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Duolingo, Inc. CENTRAL INDEX KEY: 0001562088 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-PREPACKAGED SOFTWARE [7372] IRS NUMBER: 453055872 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: CORRESP 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>CORRESP <SEQUENCE>1 <FILENAME>filename1.htm <TEXT> Document 1 - file: filename1.htm
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