0001950047-23-005075.txt : 20231115 0001950047-23-005075.hdr.sgml : 20231115 20231115174637 ACCESSION NUMBER: 0001950047-23-005075 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20231115 DATE AS OF CHANGE: 20231115 SUBJECT COMPANY: 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: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-40653 FILM NUMBER: 231411809 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 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Chen Stephen C. CENTRAL INDEX KEY: 0001869758 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: C/O DUOLINGO, INC. STREET 2: 5900 PENN AVE. CITY: PITTSBURGH STATE: PA ZIP: 15206 144 1 primary_doc.xml 144 0001869758 XXXXXXXX LIVE 0001562088 DUOLINGO, INC. 001-40653 5900 Penn Avenue Pittsburgh PA 15206 (412) 567-6602 STEPHEN CHEN Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 38th Floor New York NY 10004

988 207264.52 42013816 11/15/2023 NASDAQ Common 11/15/2023 Restricted Stock Issuer N 988 11/15/2023 Not Applicable N STEPHEN CHEN

5900 Penn Avenue Pittsburgh PA 15206

Common 09/11/2023 8842 1418102.95 STEPHEN CHEN

5900 Penn Avenue Pittsburgh PA 15206

Common 09/08/2023 5325 852437.18 11/15/2023 /s/ Stephen Chen