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These shares were sold in multiple transactions at prices ranging from $137.72 to $138.59, inclusive. 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."}],"balance_after":169111,"source":{"system":"sec-edgar","filing":"0001628280-26-058021","document":"wk-form4_1787174175.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828026058021/wk-form4_1787174175.xml","form_type":"4"}},{"id":681026,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2026-08-19T21:16:18.000Z","date":"2026-08-18","kind":"sale","planned":true,"acquired":false,"shares":502,"price":137.0094,"value":68778.7188,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 15, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $136.68 to $137.61, inclusive. 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."}],"balance_after":170148,"source":{"system":"sec-edgar","filing":"0001628280-26-058021","document":"wk-form4_1787174175.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828026058021/wk-form4_1787174175.xml","form_type":"4"}},{"id":681025,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2026-08-19T21:16:18.000Z","date":"2026-08-17","kind":"sale","planned":true,"acquired":false,"shares":2751,"price":129.13,"value":355236.63,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of restricted stock units and delivery of shares."}],"balance_after":170650,"source":{"system":"sec-edgar","filing":"0001628280-26-058021","document":"wk-form4_1787174175.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828026058021/wk-form4_1787174175.xml","form_type":"4"}},{"id":771319,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2026-05-19T20:42:54.000Z","date":"2026-05-18","kind":"sale","planned":true,"acquired":false,"shares":1300,"price":114.1851,"value":148440.63,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 15, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $113.85 to $114.64, inclusive. 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."}],"balance_after":173401,"source":{"system":"sec-edgar","filing":"0001628280-26-036518","document":"wk-form4_1779223372.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828026036518/wk-form4_1779223372.xml","form_type":"4"}},{"id":771318,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2026-05-19T20:42:54.000Z","date":"2026-05-18","kind":"sale","planned":true,"acquired":false,"shares":2060,"price":113.2114,"value":233215.484,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 15, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $112.71 to $113.60, inclusive. 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."}],"balance_after":174701,"source":{"system":"sec-edgar","filing":"0001628280-26-036518","document":"wk-form4_1779223372.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828026036518/wk-form4_1779223372.xml","form_type":"4"}},{"id":771317,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common 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2026."}],"balance_after":178690,"source":{"system":"sec-edgar","filing":"0001628280-26-036518","document":"wk-form4_1779223372.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828026036518/wk-form4_1779223372.xml","form_type":"4"}},{"id":865338,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Stock Option (Right to 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Stock","published_at":"2026-03-03T21:11:59.000Z","date":"2026-02-27","kind":"exercise","planned":false,"acquired":true,"shares":11834,"price":5,"value":59170.0,"ownership":{"direct":true},"balance_after":127214,"source":{"system":"sec-edgar","filing":"0001628280-26-013813","document":"wk-form4_1772572308.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828026013813/wk-form4_1772572308.xml","form_type":"4"}},{"id":890277,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-20T11:01:34.000Z","date":"2026-02-18","kind":"sale","planned":true,"acquired":false,"shares":360,"price":115.2886,"value":41503.896,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $114.92 to $115.57, inclusive. 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."}],"balance_after":115380,"source":{"system":"sec-edgar","filing":"0001628280-26-009984","document":"wk-form4_1771585291.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828026009984/wk-form4_1771585291.xml","form_type":"4"}},{"id":890276,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-20T11:01:34.000Z","date":"2026-02-18","kind":"sale","planned":true,"acquired":false,"shares":1520,"price":114.2887,"value":173718.824,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $113.88 to $114.87, inclusive. 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."}],"balance_after":115740,"source":{"system":"sec-edgar","filing":"0001628280-26-009984","document":"wk-form4_1771585291.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828026009984/wk-form4_1771585291.xml","form_type":"4"}},{"id":890275,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-20T11:01:34.000Z","date":"2026-02-18","kind":"sale","planned":true,"acquired":false,"shares":166,"price":113.5452,"value":18848.5032,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $112.87 to $113.77, inclusive. 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."}],"balance_after":117260,"source":{"system":"sec-edgar","filing":"0001628280-26-009984","document":"wk-form4_1771585291.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828026009984/wk-form4_1771585291.xml","form_type":"4"}},{"id":890274,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-20T11:01:34.000Z","date":"2026-02-18","kind":"sale","planned":true,"acquired":false,"shares":1499,"price":112.296,"value":168331.704,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $111.87 to $112.86, inclusive. 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."}],"balance_after":117426,"source":{"system":"sec-edgar","filing":"0001628280-26-009984","document":"wk-form4_1771585291.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828026009984/wk-form4_1771585291.xml","form_type":"4"}},{"id":890273,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-20T11:01:34.000Z","date":"2026-02-17","kind":"sale","planned":true,"acquired":false,"shares":1741,"price":110.06,"value":191614.46,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units (\"RSUs\") and delivery of shares."}],"balance_after":118925,"source":{"system":"sec-edgar","filing":"0001628280-26-009984","document":"wk-form4_1771585291.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828026009984/wk-form4_1771585291.xml","form_type":"4"}},{"id":975588,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2025-12-09T21:17:43.000Z","date":"2025-12-05","kind":"exercise","planned":false,"acquired":false,"shares":9500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares subject to the option are fully vested and exercisable."}],"balance_after":11834,"derivative":{"exercise_price":5,"expiration_date":"2027-04-07","underlying":"Class A Common Stock","underlying_shares":9500},"source":{"system":"sec-edgar","filing":"0001628280-25-056081","document":"wk-form4_1765315060.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025056081/wk-form4_1765315060.xml","form_type":"4"}},{"id":975587,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-12-09T21:17:43.000Z","date":"2025-12-05","kind":"exercise","planned":false,"acquired":true,"shares":9500,"price":5,"value":47500.0,"ownership":{"direct":true},"balance_after":120666,"source":{"system":"sec-edgar","filing":"0001628280-25-056081","document":"wk-form4_1765315060.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025056081/wk-form4_1765315060.xml","form_type":"4"}},{"id":993509,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-19T21:20:31.000Z","date":"2025-11-18","kind":"sale","planned":true,"acquired":false,"shares":160,"price":177.6025,"value":28416.4,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $177.51 to $177.74, inclusive. 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."}],"balance_after":111166,"source":{"system":"sec-edgar","filing":"0001628280-25-053182","document":"wk-form4_1763587228.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025053182/wk-form4_1763587228.xml","form_type":"4"}},{"id":993508,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-19T21:20:31.000Z","date":"2025-11-18","kind":"sale","planned":true,"acquired":false,"shares":560,"price":176.9964,"value":99117.984,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $176.45 to $177.33, inclusive. 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."}],"balance_after":111326,"source":{"system":"sec-edgar","filing":"0001628280-25-053182","document":"wk-form4_1763587228.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025053182/wk-form4_1763587228.xml","form_type":"4"}},{"id":993507,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-19T21:20:31.000Z","date":"2025-11-18","kind":"sale","planned":true,"acquired":false,"shares":850,"price":175.7316,"value":149371.86,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $175.40 to $176.35, inclusive. 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."}],"balance_after":111886,"source":{"system":"sec-edgar","filing":"0001628280-25-053182","document":"wk-form4_1763587228.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025053182/wk-form4_1763587228.xml","form_type":"4"}},{"id":993506,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-19T21:20:31.000Z","date":"2025-11-18","kind":"sale","planned":true,"acquired":false,"shares":741,"price":174.9689,"value":129651.9549,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $174.39 to $175.38, inclusive. 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."}],"balance_after":112736,"source":{"system":"sec-edgar","filing":"0001628280-25-053182","document":"wk-form4_1763587228.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025053182/wk-form4_1763587228.xml","form_type":"4"}},{"id":993505,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-19T21:20:31.000Z","date":"2025-11-18","kind":"sale","planned":true,"acquired":false,"shares":160,"price":173.7975,"value":27807.6,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $173.36 to $174.21, inclusive. 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."}],"balance_after":113477,"source":{"system":"sec-edgar","filing":"0001628280-25-053182","document":"wk-form4_1763587228.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025053182/wk-form4_1763587228.xml","form_type":"4"}},{"id":993504,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-19T21:20:31.000Z","date":"2025-11-17","kind":"sale","planned":true,"acquired":false,"shares":2534,"price":177.95,"value":450925.3,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units (\"RSUs\") and delivery of shares."}],"balance_after":113637,"source":{"system":"sec-edgar","filing":"0001628280-25-053182","document":"wk-form4_1763587228.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025053182/wk-form4_1763587228.xml","form_type":"4"}},{"id":1022826,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-10-06T12:13:10.000Z","date":"2025-10-01","kind":"sale","planned":true,"acquired":false,"shares":600,"price":319.7567,"value":191854.02,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $319.46 to $320.21, inclusive. 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."}],"balance_after":116171,"source":{"system":"sec-edgar","filing":"0001628280-25-044221","document":"wk-form4_1759752787.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025044221/wk-form4_1759752787.xml","form_type":"4"}},{"id":1022825,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-10-06T12:13:10.000Z","date":"2025-10-01","kind":"sale","planned":true,"acquired":false,"shares":600,"price":317.955,"value":190773.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $317.51 to $318.33, inclusive. 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."}],"balance_after":116771,"source":{"system":"sec-edgar","filing":"0001628280-25-044221","document":"wk-form4_1759752787.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025044221/wk-form4_1759752787.xml","form_type":"4"}},{"id":1022824,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-10-06T12:13:10.000Z","date":"2025-10-01","kind":"sale","planned":true,"acquired":false,"shares":300,"price":316.7367,"value":95021.01,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $316.41 to $316.90, inclusive. 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."}],"balance_after":117371,"source":{"system":"sec-edgar","filing":"0001628280-25-044221","document":"wk-form4_1759752787.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025044221/wk-form4_1759752787.xml","form_type":"4"}},{"id":1022823,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-10-06T12:13:10.000Z","date":"2025-10-01","kind":"sale","planned":true,"acquired":false,"shares":300,"price":315.2833,"value":94584.99,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $315.01 to $315.65, inclusive. 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."}],"balance_after":117671,"source":{"system":"sec-edgar","filing":"0001628280-25-044221","document":"wk-form4_1759752787.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025044221/wk-form4_1759752787.xml","form_type":"4"}},{"id":1022822,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-10-06T12:13:10.000Z","date":"2025-10-01","kind":"sale","planned":true,"acquired":false,"shares":108,"price":312.7463,"value":33776.6004,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $312.71 to $313.20, inclusive. 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."}],"balance_after":117971,"source":{"system":"sec-edgar","filing":"0001628280-25-044221","document":"wk-form4_1759752787.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025044221/wk-form4_1759752787.xml","form_type":"4"}},{"id":1022821,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-10-06T12:13:10.000Z","date":"2025-10-01","kind":"sale","planned":true,"acquired":false,"shares":600,"price":306.505,"value":183903.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $306.00 to $306.99, inclusive. 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."}],"balance_after":118079,"source":{"system":"sec-edgar","filing":"0001628280-25-044221","document":"wk-form4_1759752787.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025044221/wk-form4_1759752787.xml","form_type":"4"}},{"id":1022820,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-10-06T12:13:10.000Z","date":"2025-10-01","kind":"sale","planned":true,"acquired":false,"shares":200,"price":305.09,"value":61018.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $305.00 to $305.18, inclusive. 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."}],"balance_after":118679,"source":{"system":"sec-edgar","filing":"0001628280-25-044221","document":"wk-form4_1759752787.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025044221/wk-form4_1759752787.xml","form_type":"4"}},{"id":1022819,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-10-06T12:13:10.000Z","date":"2025-10-01","kind":"sale","planned":true,"acquired":false,"shares":475,"price":303.7442,"value":144278.495,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $303.45 to $304.06, inclusive. 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."}],"balance_after":118879,"source":{"system":"sec-edgar","filing":"0001628280-25-044221","document":"wk-form4_1759752787.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025044221/wk-form4_1759752787.xml","form_type":"4"}},{"id":1022818,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-10-06T12:13:10.000Z","date":"2025-10-01","kind":"sale","planned":true,"acquired":false,"shares":100,"price":300.56,"value":30056.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."}],"balance_after":119354,"source":{"system":"sec-edgar","filing":"0001628280-25-044221","document":"wk-form4_1759752787.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000162828025044221/wk-form4_1759752787.xml","form_type":"4"}},{"id":1061339,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-08-19T20:15:41.000Z","date":"2025-08-18","kind":"gift","planned":true,"acquired":false,"shares":187,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":119454,"source":{"system":"sec-edgar","filing":"0001562088-25-000187","document":"wk-form4_1755634536.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000187/wk-form4_1755634536.xml","form_type":"4"}},{"id":1061338,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-08-19T20:15:41.000Z","date":"2025-08-18","kind":"sale","planned":true,"acquired":false,"shares":400,"price":369.865,"value":147946.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $369.54 to $370.12, inclusive. 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."}],"balance_after":119641,"source":{"system":"sec-edgar","filing":"0001562088-25-000187","document":"wk-form4_1755634536.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000187/wk-form4_1755634536.xml","form_type":"4"}},{"id":1061337,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-08-19T20:15:41.000Z","date":"2025-08-18","kind":"sale","planned":true,"acquired":false,"shares":169,"price":368.4367,"value":62265.8023,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $368.20 to $368.60, inclusive. 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."}],"balance_after":120041,"source":{"system":"sec-edgar","filing":"0001562088-25-000187","document":"wk-form4_1755634536.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000187/wk-form4_1755634536.xml","form_type":"4"}},{"id":1061336,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-08-19T20:15:41.000Z","date":"2025-08-18","kind":"sale","planned":true,"acquired":false,"shares":702,"price":367.4421,"value":257944.3542,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $367.17 to $368.02, inclusive. 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."}],"balance_after":120210,"source":{"system":"sec-edgar","filing":"0001562088-25-000187","document":"wk-form4_1755634536.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000187/wk-form4_1755634536.xml","form_type":"4"}},{"id":1061335,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-08-19T20:15:41.000Z","date":"2025-08-18","kind":"sale","planned":true,"acquired":false,"shares":900,"price":366.1589,"value":329543.01,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $365.67 to $366.65, inclusive. 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."}],"balance_after":120912,"source":{"system":"sec-edgar","filing":"0001562088-25-000187","document":"wk-form4_1755634536.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000187/wk-form4_1755634536.xml","form_type":"4"}},{"id":1061334,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-08-19T20:15:41.000Z","date":"2025-08-18","kind":"sale","planned":true,"acquired":false,"shares":300,"price":364.64,"value":109392.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $364.39 to $364.86, inclusive. 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."}],"balance_after":121812,"source":{"system":"sec-edgar","filing":"0001562088-25-000187","document":"wk-form4_1755634536.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000187/wk-form4_1755634536.xml","form_type":"4"}},{"id":1063544,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-08-18T21:21:46.000Z","date":"2025-08-15","kind":"sale","planned":false,"acquired":false,"shares":2533,"price":329.03,"value":833432.99,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units (\"RSUs\") and delivery of shares."}],"balance_after":122112,"source":{"system":"sec-edgar","filing":"0001562088-25-000182","document":"wk-form4_1755552102.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000182/wk-form4_1755552102.xml","form_type":"4"}},{"id":1067540,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-08-13T20:23:17.000Z","date":"2025-08-12","kind":"gift","planned":false,"acquired":false,"shares":2300,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":124645,"source":{"system":"sec-edgar","filing":"0001562088-25-000172","document":"wk-form4_1755116593.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000172/wk-form4_1755116593.xml","form_type":"4"}},{"id":1094361,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-07-02T20:10:38.000Z","date":"2025-07-01","kind":"sale","planned":true,"acquired":false,"shares":100,"price":413.14,"value":41314.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."}],"balance_after":126945,"source":{"system":"sec-edgar","filing":"0001562088-25-000155","document":"wk-form4_1751487024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000155/wk-form4_1751487024.xml","form_type":"4"}},{"id":1094360,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-07-02T20:10:38.000Z","date":"2025-07-01","kind":"sale","planned":true,"acquired":false,"shares":300,"price":410.68,"value":123204.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $410.58 to $410.73, inclusive. 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."}],"balance_after":127045,"source":{"system":"sec-edgar","filing":"0001562088-25-000155","document":"wk-form4_1751487024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000155/wk-form4_1751487024.xml","form_type":"4"}},{"id":1094359,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-07-02T20:10:38.000Z","date":"2025-07-01","kind":"sale","planned":true,"acquired":false,"shares":100,"price":408.14,"value":40814.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."}],"balance_after":127345,"source":{"system":"sec-edgar","filing":"0001562088-25-000155","document":"wk-form4_1751487024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000155/wk-form4_1751487024.xml","form_type":"4"}},{"id":1094358,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-07-02T20:10:38.000Z","date":"2025-07-01","kind":"sale","planned":true,"acquired":false,"shares":100,"price":405.39,"value":40539.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."}],"balance_after":127445,"source":{"system":"sec-edgar","filing":"0001562088-25-000155","document":"wk-form4_1751487024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000155/wk-form4_1751487024.xml","form_type":"4"}},{"id":1094357,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-07-02T20:10:38.000Z","date":"2025-07-01","kind":"sale","planned":true,"acquired":false,"shares":200,"price":404.26,"value":80852.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $404.23 to $404.29, inclusive. 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."}],"balance_after":127545,"source":{"system":"sec-edgar","filing":"0001562088-25-000155","document":"wk-form4_1751487024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000155/wk-form4_1751487024.xml","form_type":"4"}},{"id":1094356,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-07-02T20:10:38.000Z","date":"2025-07-01","kind":"sale","planned":true,"acquired":false,"shares":300,"price":403.1933,"value":120957.99,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $403.14 to $403.30, inclusive. 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."}],"balance_after":127745,"source":{"system":"sec-edgar","filing":"0001562088-25-000155","document":"wk-form4_1751487024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000155/wk-form4_1751487024.xml","form_type":"4"}},{"id":1094355,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-07-02T20:10:38.000Z","date":"2025-07-01","kind":"sale","planned":true,"acquired":false,"shares":224,"price":402.383,"value":90133.792,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $402.13 to $402.62, inclusive. 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."}],"balance_after":128045,"source":{"system":"sec-edgar","filing":"0001562088-25-000155","document":"wk-form4_1751487024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000155/wk-form4_1751487024.xml","form_type":"4"}},{"id":1094354,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-07-02T20:10:38.000Z","date":"2025-07-01","kind":"sale","planned":true,"acquired":false,"shares":685,"price":400.9223,"value":274631.7755,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $400.42 to $401.29, inclusive. 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."}],"balance_after":128269,"source":{"system":"sec-edgar","filing":"0001562088-25-000155","document":"wk-form4_1751487024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000155/wk-form4_1751487024.xml","form_type":"4"}},{"id":1094353,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-07-02T20:10:38.000Z","date":"2025-07-01","kind":"sale","planned":true,"acquired":false,"shares":200,"price":399.65,"value":79930.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $399.22 to $400.08, inclusive. 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."}],"balance_after":128954,"source":{"system":"sec-edgar","filing":"0001562088-25-000155","document":"wk-form4_1751487024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000155/wk-form4_1751487024.xml","form_type":"4"}},{"id":1094352,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-07-02T20:10:38.000Z","date":"2025-07-01","kind":"sale","planned":true,"acquired":false,"shares":200,"price":397.125,"value":79425.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $396.77 to $397.48, inclusive. 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."}],"balance_after":129154,"source":{"system":"sec-edgar","filing":"0001562088-25-000155","document":"wk-form4_1751487024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000155/wk-form4_1751487024.xml","form_type":"4"}},{"id":1094351,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-07-02T20:10:38.000Z","date":"2025-07-01","kind":"sale","planned":true,"acquired":false,"shares":300,"price":395.933,"value":118779.9,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $395.49 to $396.01, inclusive. 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."}],"balance_after":129354,"source":{"system":"sec-edgar","filing":"0001562088-25-000155","document":"wk-form4_1751487024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000155/wk-form4_1751487024.xml","form_type":"4"}},{"id":1141996,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-05-19T20:22:35.000Z","date":"2025-05-16","kind":"sale","planned":true,"acquired":false,"shares":377,"price":531.4182,"value":200344.6614,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $531.40 to $531.45, inclusive. 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."}],"balance_after":129654,"source":{"system":"sec-edgar","filing":"0001562088-25-000115","document":"wk-form4_1747686147.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000115/wk-form4_1747686147.xml","form_type":"4"}},{"id":1141995,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-05-19T20:22:35.000Z","date":"2025-05-16","kind":"sale","planned":true,"acquired":false,"shares":190,"price":530.2053,"value":100739.007,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $530.20 to $530.21, inclusive. 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."}],"balance_after":130031,"source":{"system":"sec-edgar","filing":"0001562088-25-000115","document":"wk-form4_1747686147.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000115/wk-form4_1747686147.xml","form_type":"4"}},{"id":1141994,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-05-19T20:22:35.000Z","date":"2025-05-16","kind":"sale","planned":true,"acquired":false,"shares":800,"price":529.4825,"value":423586.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $529.02 to $529.66, inclusive. 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."}],"balance_after":130221,"source":{"system":"sec-edgar","filing":"0001562088-25-000115","document":"wk-form4_1747686147.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000115/wk-form4_1747686147.xml","form_type":"4"}},{"id":1141993,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-05-19T20:22:35.000Z","date":"2025-05-16","kind":"sale","planned":true,"acquired":false,"shares":500,"price":528.5116,"value":264255.8,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $527.96 to $528.88, inclusive. 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."}],"balance_after":131021,"source":{"system":"sec-edgar","filing":"0001562088-25-000115","document":"wk-form4_1747686147.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000115/wk-form4_1747686147.xml","form_type":"4"}},{"id":1141992,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-05-19T20:22:35.000Z","date":"2025-05-16","kind":"sale","planned":true,"acquired":false,"shares":600,"price":527.295,"value":316377.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $526.93 to $527.75, inclusive. 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."}],"balance_after":131521,"source":{"system":"sec-edgar","filing":"0001562088-25-000115","document":"wk-form4_1747686147.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000115/wk-form4_1747686147.xml","form_type":"4"}},{"id":1141991,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-05-19T20:22:35.000Z","date":"2025-05-16","kind":"sale","planned":true,"acquired":false,"shares":800,"price":526.104,"value":420883.2,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $525.88 to $526.83, inclusive. 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."}],"balance_after":132121,"source":{"system":"sec-edgar","filing":"0001562088-25-000115","document":"wk-form4_1747686147.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000115/wk-form4_1747686147.xml","form_type":"4"}},{"id":1144856,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-05-16T20:14:22.000Z","date":"2025-05-15","kind":"sale","planned":false,"acquired":false,"shares":3039,"price":531.71,"value":1615866.69,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units (\"RSUs\") and delivery of shares."}],"balance_after":132921,"source":{"system":"sec-edgar","filing":"0001562088-25-000108","document":"wk-form4_1747426455.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000108/wk-form4_1747426455.xml","form_type":"4"}},{"id":1144855,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-05-16T20:14:22.000Z","date":"2025-05-15","kind":"grant","planned":false,"acquired":true,"shares":8709,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Constitute Restricted Stock Units (\"RSUs\") for which the Reporting Person is entitled to receive one (1) share of Issuer's Class A Common Stock for each RSU upon vesting. 1/16th of the RSUs shall vest on each quarterly anniversary of May 15, 2025."}],"balance_after":135960,"source":{"system":"sec-edgar","filing":"0001562088-25-000108","document":"wk-form4_1747426455.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000108/wk-form4_1747426455.xml","form_type":"4"}},{"id":1182674,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-04-02T20:09:10.000Z","date":"2025-04-01","kind":"sale","planned":true,"acquired":false,"shares":732,"price":327.3203,"value":239598.4596,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F11","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $327.00 to $327.89, inclusive. 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."}],"balance_after":127251,"source":{"system":"sec-edgar","filing":"0001562088-25-000061","document":"wk-form4_1743624539.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000061/wk-form4_1743624539.xml","form_type":"4"}},{"id":1182673,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-04-02T20:09:10.000Z","date":"2025-04-01","kind":"sale","planned":true,"acquired":false,"shares":100,"price":325.44,"value":32544.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."}],"balance_after":127983,"source":{"system":"sec-edgar","filing":"0001562088-25-000061","document":"wk-form4_1743624539.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000061/wk-form4_1743624539.xml","form_type":"4"}},{"id":1182672,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-04-02T20:09:10.000Z","date":"2025-04-01","kind":"sale","planned":true,"acquired":false,"shares":100,"price":324.38,"value":32438.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."}],"balance_after":128083,"source":{"system":"sec-edgar","filing":"0001562088-25-000061","document":"wk-form4_1743624539.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000061/wk-form4_1743624539.xml","form_type":"4"}},{"id":1182671,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-04-02T20:09:10.000Z","date":"2025-04-01","kind":"sale","planned":true,"acquired":false,"shares":200,"price":323.415,"value":64683.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $323.14 to $323.69, inclusive. 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."}],"balance_after":128183,"source":{"system":"sec-edgar","filing":"0001562088-25-000061","document":"wk-form4_1743624539.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000061/wk-form4_1743624539.xml","form_type":"4"}},{"id":1182670,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-04-02T20:09:10.000Z","date":"2025-04-01","kind":"sale","planned":true,"acquired":false,"shares":200,"price":321.665,"value":64333.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $321.30 to $322.03, inclusive. 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."}],"balance_after":128383,"source":{"system":"sec-edgar","filing":"0001562088-25-000061","document":"wk-form4_1743624539.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000061/wk-form4_1743624539.xml","form_type":"4"}},{"id":1182669,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-04-02T20:09:10.000Z","date":"2025-04-01","kind":"sale","planned":true,"acquired":false,"shares":400,"price":320.7525,"value":128301.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $320.22 to $321.09, inclusive. 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."}],"balance_after":128583,"source":{"system":"sec-edgar","filing":"0001562088-25-000061","document":"wk-form4_1743624539.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000061/wk-form4_1743624539.xml","form_type":"4"}},{"id":1182668,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-04-02T20:09:10.000Z","date":"2025-04-01","kind":"sale","planned":true,"acquired":false,"shares":700,"price":319.5571,"value":223689.97,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $319.18 to $320.08, inclusive. 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."}],"balance_after":128983,"source":{"system":"sec-edgar","filing":"0001562088-25-000061","document":"wk-form4_1743624539.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000061/wk-form4_1743624539.xml","form_type":"4"}},{"id":1182667,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-04-02T20:09:10.000Z","date":"2025-04-01","kind":"sale","planned":true,"acquired":false,"shares":100,"price":317.03,"value":31703.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."}],"balance_after":129683,"source":{"system":"sec-edgar","filing":"0001562088-25-000061","document":"wk-form4_1743624539.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000061/wk-form4_1743624539.xml","form_type":"4"}},{"id":1182666,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-04-02T20:09:10.000Z","date":"2025-04-01","kind":"sale","planned":true,"acquired":false,"shares":200,"price":313.765,"value":62753.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $313.58 to $313.95, inclusive. 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."}],"balance_after":129783,"source":{"system":"sec-edgar","filing":"0001562088-25-000061","document":"wk-form4_1743624539.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000061/wk-form4_1743624539.xml","form_type":"4"}},{"id":1182665,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-04-02T20:09:10.000Z","date":"2025-04-01","kind":"sale","planned":true,"acquired":false,"shares":200,"price":312.36,"value":62472.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $311.97 to $312.75, inclusive. 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."}],"balance_after":129983,"source":{"system":"sec-edgar","filing":"0001562088-25-000061","document":"wk-form4_1743624539.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000061/wk-form4_1743624539.xml","form_type":"4"}},{"id":1182664,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-04-02T20:09:10.000Z","date":"2025-04-01","kind":"sale","planned":true,"acquired":false,"shares":200,"price":311.08,"value":62216.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $310.96 to $311.20, inclusive. 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."}],"balance_after":130183,"source":{"system":"sec-edgar","filing":"0001562088-25-000061","document":"wk-form4_1743624539.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000061/wk-form4_1743624539.xml","form_type":"4"}},{"id":1182663,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-04-02T20:09:10.000Z","date":"2025-04-01","kind":"sale","planned":true,"acquired":false,"shares":200,"price":309.105,"value":61821.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $309.05 to $309.16, inclusive. 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."}],"balance_after":130383,"source":{"system":"sec-edgar","filing":"0001562088-25-000061","document":"wk-form4_1743624539.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000061/wk-form4_1743624539.xml","form_type":"4"}},{"id":1182662,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-04-02T20:09:10.000Z","date":"2025-04-01","kind":"sale","planned":true,"acquired":false,"shares":150,"price":308.35,"value":46252.5,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $308.05 to $308.95, inclusive. 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."}],"balance_after":130583,"source":{"system":"sec-edgar","filing":"0001562088-25-000061","document":"wk-form4_1743624539.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000061/wk-form4_1743624539.xml","form_type":"4"}},{"id":1219095,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-03-07T01:55:36.000Z","date":"2025-03-05","kind":"sale","planned":true,"acquired":false,"shares":400,"price":294.355,"value":117742.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $294.04 to $294.78, inclusive. 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."}],"balance_after":130733,"source":{"system":"sec-edgar","filing":"0001562088-25-000048","document":"wk-form4_1741312528.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000048/wk-form4_1741312528.xml","form_type":"4"}},{"id":1219094,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-03-07T01:55:36.000Z","date":"2025-03-05","kind":"sale","planned":true,"acquired":false,"shares":798,"price":293.2634,"value":234024.1932,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $292.90 to $293.64, inclusive. 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."}],"balance_after":131133,"source":{"system":"sec-edgar","filing":"0001562088-25-000048","document":"wk-form4_1741312528.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000048/wk-form4_1741312528.xml","form_type":"4"}},{"id":1219093,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-03-07T01:55:36.000Z","date":"2025-03-05","kind":"sale","planned":true,"acquired":false,"shares":1722,"price":292.2458,"value":503247.2676,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $291.82 to $292.72, inclusive. 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."}],"balance_after":131931,"source":{"system":"sec-edgar","filing":"0001562088-25-000048","document":"wk-form4_1741312528.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000048/wk-form4_1741312528.xml","form_type":"4"}},{"id":1219092,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-03-07T01:55:36.000Z","date":"2025-03-05","kind":"sale","planned":true,"acquired":false,"shares":1900,"price":291.3042,"value":553477.98,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $290.72 to $291.67, inclusive. 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."}],"balance_after":133653,"source":{"system":"sec-edgar","filing":"0001562088-25-000048","document":"wk-form4_1741312528.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000048/wk-form4_1741312528.xml","form_type":"4"}},{"id":1219091,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-03-07T01:55:36.000Z","date":"2025-03-05","kind":"sale","planned":true,"acquired":false,"shares":1600,"price":290.2988,"value":464478.08,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $289.71 to $290.68, inclusive. 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."}],"balance_after":135553,"source":{"system":"sec-edgar","filing":"0001562088-25-000048","document":"wk-form4_1741312528.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000048/wk-form4_1741312528.xml","form_type":"4"}},{"id":1219090,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-03-07T01:55:36.000Z","date":"2025-03-05","kind":"sale","planned":true,"acquired":false,"shares":1200,"price":288.9692,"value":346763.04,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $288.50 to $289.44, inclusive. 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."}],"balance_after":137153,"source":{"system":"sec-edgar","filing":"0001562088-25-000048","document":"wk-form4_1741312528.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000048/wk-form4_1741312528.xml","form_type":"4"}},{"id":1219089,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-03-07T01:55:36.000Z","date":"2025-03-05","kind":"sale","planned":true,"acquired":false,"shares":500,"price":287.708,"value":143854.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $287.50 to $287.89, inclusive. 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."}],"balance_after":138353,"source":{"system":"sec-edgar","filing":"0001562088-25-000048","document":"wk-form4_1741312528.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000048/wk-form4_1741312528.xml","form_type":"4"}},{"id":1219088,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-03-07T01:55:36.000Z","date":"2025-03-05","kind":"sale","planned":true,"acquired":false,"shares":900,"price":286.1889,"value":257570.01,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $285.77 to $286.49, inclusive. 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."}],"balance_after":138853,"source":{"system":"sec-edgar","filing":"0001562088-25-000048","document":"wk-form4_1741312528.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000048/wk-form4_1741312528.xml","form_type":"4"}},{"id":1245293,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2025-02-25T21:05:59.000Z","date":"2025-02-24","kind":"exercise","planned":false,"acquired":false,"shares":10181,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares subject to the option are fully vested and exercisable."}],"balance_after":8215,"derivative":{"exercise_price":2.23,"expiration_date":"2025-02-27","underlying":"Class A Common Stock","underlying_shares":10181},"source":{"system":"sec-edgar","filing":"0001562088-25-000035","document":"wk-form4_1740517547.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000035/wk-form4_1740517547.xml","form_type":"4"}},{"id":1245292,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-02-25T21:05:59.000Z","date":"2025-02-24","kind":"exercise","planned":false,"acquired":true,"shares":10181,"price":2.23,"value":22703.63,"ownership":{"direct":true},"balance_after":139753,"source":{"system":"sec-edgar","filing":"0001562088-25-000035","document":"wk-form4_1740517547.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000035/wk-form4_1740517547.xml","form_type":"4"}},{"id":1258732,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2025-02-20T00:19:59.000Z","date":"2025-02-18","kind":"sale","planned":false,"acquired":false,"shares":2667,"price":435.28,"value":1160891.76,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units (\"RSUs\") and delivery of shares."}],"balance_after":129572,"source":{"system":"sec-edgar","filing":"0001562088-25-000024","document":"wk-form4_1740010790.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208825000024/wk-form4_1740010790.xml","form_type":"4"}},{"id":1338655,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-12-10T00:23:34.000Z","date":"2024-12-06","kind":"sale","planned":true,"acquired":false,"shares":200,"price":371.86,"value":74372.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $371.67 to $372.05, inclusive. 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."}],"balance_after":132239,"source":{"system":"sec-edgar","filing":"0001562088-24-000278","document":"wk-form4_1733790207.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000278/wk-form4_1733790207.xml","form_type":"4"}},{"id":1338654,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-12-10T00:23:34.000Z","date":"2024-12-06","kind":"sale","planned":true,"acquired":false,"shares":300,"price":370.4133,"value":111123.99,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $370.10 to $370.99, inclusive. 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."}],"balance_after":132439,"source":{"system":"sec-edgar","filing":"0001562088-24-000278","document":"wk-form4_1733790207.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000278/wk-form4_1733790207.xml","form_type":"4"}},{"id":1338653,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-12-10T00:23:34.000Z","date":"2024-12-06","kind":"sale","planned":true,"acquired":false,"shares":400,"price":369.2975,"value":147719.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $368.85 to $369.80, inclusive. 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."}],"balance_after":132739,"source":{"system":"sec-edgar","filing":"0001562088-24-000278","document":"wk-form4_1733790207.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000278/wk-form4_1733790207.xml","form_type":"4"}},{"id":1338652,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-12-10T00:23:34.000Z","date":"2024-12-06","kind":"sale","planned":true,"acquired":false,"shares":600,"price":367.9706,"value":220782.36,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $367.54 to $368.50, inclusive. 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."}],"balance_after":133139,"source":{"system":"sec-edgar","filing":"0001562088-24-000278","document":"wk-form4_1733790207.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000278/wk-form4_1733790207.xml","form_type":"4"}},{"id":1361410,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-11-18T21:14:01.000Z","date":"2024-11-15","kind":"sale","planned":false,"acquired":false,"shares":3021,"price":309.3,"value":934395.3,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units (\"RSUs\") and delivery of shares."}],"balance_after":133739,"source":{"system":"sec-edgar","filing":"0001562088-24-000257","document":"wk-form4_1731964434.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000257/wk-form4_1731964434.xml","form_type":"4"}},{"id":1372679,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-11-07T22:17:34.000Z","date":"2024-11-06","kind":"sale","planned":true,"acquired":false,"shares":194,"price":318.4356,"value":61776.5064,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $318.14 to $318.75, inclusive. 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."}],"balance_after":136760,"source":{"system":"sec-edgar","filing":"0001562088-24-000252","document":"wk-form4_1731017846.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000252/wk-form4_1731017846.xml","form_type":"4"}},{"id":1372678,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-11-07T22:17:34.000Z","date":"2024-11-06","kind":"sale","planned":true,"acquired":false,"shares":303,"price":316.3903,"value":95866.2609,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $316.09 to $316.69, inclusive. 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."}],"balance_after":136954,"source":{"system":"sec-edgar","filing":"0001562088-24-000252","document":"wk-form4_1731017846.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000252/wk-form4_1731017846.xml","form_type":"4"}},{"id":1372677,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-11-07T22:17:34.000Z","date":"2024-11-06","kind":"sale","planned":true,"acquired":false,"shares":300,"price":314.1467,"value":94244.01,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $313.91 to $314.62, inclusive. 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."}],"balance_after":137257,"source":{"system":"sec-edgar","filing":"0001562088-24-000252","document":"wk-form4_1731017846.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000252/wk-form4_1731017846.xml","form_type":"4"}},{"id":1372676,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-11-07T22:17:34.000Z","date":"2024-11-06","kind":"sale","planned":true,"acquired":false,"shares":200,"price":312.72,"value":62544.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $312.47 to $312.97, inclusive. 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."}],"balance_after":137557,"source":{"system":"sec-edgar","filing":"0001562088-24-000252","document":"wk-form4_1731017846.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000252/wk-form4_1731017846.xml","form_type":"4"}},{"id":1372675,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-11-07T22:17:34.000Z","date":"2024-11-06","kind":"sale","planned":true,"acquired":false,"shares":300,"price":310.5567,"value":93167.01,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $310.12 to $310.99, inclusive. 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."}],"balance_after":137757,"source":{"system":"sec-edgar","filing":"0001562088-24-000252","document":"wk-form4_1731017846.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000252/wk-form4_1731017846.xml","form_type":"4"}},{"id":1372674,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-11-07T22:17:34.000Z","date":"2024-11-06","kind":"sale","planned":true,"acquired":false,"shares":103,"price":308.2345,"value":31748.1535,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $308.05 to $308.24, inclusive. 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."}],"balance_after":138057,"source":{"system":"sec-edgar","filing":"0001562088-24-000252","document":"wk-form4_1731017846.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000252/wk-form4_1731017846.xml","form_type":"4"}},{"id":1372673,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-11-07T22:17:34.000Z","date":"2024-11-06","kind":"sale","planned":true,"acquired":false,"shares":100,"price":306.97,"value":30697.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."}],"balance_after":138160,"source":{"system":"sec-edgar","filing":"0001562088-24-000252","document":"wk-form4_1731017846.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000252/wk-form4_1731017846.xml","form_type":"4"}},{"id":1389125,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-10-09T00:09:15.000Z","date":"2024-10-07","kind":"sale","planned":true,"acquired":false,"shares":1500,"price":280.91,"value":421365.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."}],"balance_after":138260,"source":{"system":"sec-edgar","filing":"0001562088-24-000240","document":"wk-form4_1728432548.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000240/wk-form4_1728432548.xml","form_type":"4"}},{"id":1411680,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-09-10T00:18:41.000Z","date":"2024-09-06","kind":"sale","planned":true,"acquired":false,"shares":200,"price":210.925,"value":42185.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $210.80 to $211.05, inclusive. 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."}],"balance_after":139760,"source":{"system":"sec-edgar","filing":"0001562088-24-000230","document":"wk-form4_1725927514.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000230/wk-form4_1725927514.xml","form_type":"4"}},{"id":1411679,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-09-10T00:18:41.000Z","date":"2024-09-06","kind":"sale","planned":true,"acquired":false,"shares":500,"price":208.494,"value":104247.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $208.44 to $208.65, inclusive. 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."}],"balance_after":139960,"source":{"system":"sec-edgar","filing":"0001562088-24-000230","document":"wk-form4_1725927514.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000230/wk-form4_1725927514.xml","form_type":"4"}},{"id":1411678,"issuer":{"id":3679,"kind":"organization","name":"Duolingo, Inc.","symbol":"DUOL"},"owners":[{"id":21535,"kind":"person","name":"Glance Natalie","position":1,"cik":"0001870350","reported_name":"Glance Natalie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Engineering Officer"}}],"security":"Class A Common Stock","published_at":"2024-09-10T00:18:41.000Z","date":"2024-09-06","kind":"sale","planned":true,"acquired":false,"shares":300,"price":207.3967,"value":62219.01,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $207.04 to $207.77, inclusive. 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."}],"balance_after":140460,"source":{"system":"sec-edgar","filing":"0001562088-24-000230","document":"wk-form4_1725927514.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208824000230/wk-form4_1725927514.xml","form_type":"4"}}],"next_cursor":"2024-09-10T00:18:41.000000Z,1411678"}