<?xml version="1.0" ?><!--XBRL Document Created with Wdesk from Workiva--><!--Copyright 2021 Workiva--><!--r:72bb23bd-a498-4d9c-8822-24436e8e9b19,g:a4dc2692-dffa-45bc-b899-a1db6d79f873,d:96668ef175e34b89a32d34098bbdf9c0--><html xmlns="http://www.w3.org/1999/xhtml" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2020-02-12" xmlns:dei="http://xbrl.sec.gov/dei/2021" xml:lang="en-US"><head><meta http-equiv="Content-Type" content="text/html"/>


<title>duol-20211208</title></head><body><div style="display:none"><ix:header><ix:hidden><ix:nonNumeric contextRef="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208" name="dei:EntityCentralIndexKey" id="id3VybDovL2RvY3MudjEvZG9jOjk2NjY4ZWYxNzVlMzRiODlhMzJkMzQwOThiYmRmOWMwL3NlYzo5NjY2OGVmMTc1ZTM0Yjg5YTMyZDM0MDk4YmJkZjljMF80L2ZyYWc6ZjUxYzJmMjE3OTY3NGMxM2IyMjNmOWM3NTM1MjI4YmEvdGFibGU6NGVjZTc1ZDU2ZGNlNGU3ZThjZWQ2OTg2YzI2ZGFjYzgvdGFibGVyYW5nZTo0ZWNlNzVkNTZkY2U0ZTdlOGNlZDY5ODZjMjZkYWNjOF8yLTEtMS0xLTUwMzQ5_9f3f7570-51e0-4dc2-a89f-18370bb03474">0001562088</ix:nonNumeric><ix:nonNumeric contextRef="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208" name="dei:AmendmentFlag" 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xlink:href="duol-20211208.xsd"></link:schemaRef></ix:references><ix:resources><xbrli:context id="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001562088</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2021-12-08</xbrli:startDate><xbrli:endDate>2021-12-08</xbrli:endDate></xbrli:period></xbrli:context></ix:resources></ix:header></div><div id="i96668ef175e34b89a32d34098bbdf9c0_1"></div><div style="min-height:72pt;width:100%"><div><span><br/></span></div></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:1pt solid #000;padding:0 1pt"></td></tr></table></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">UNITED STATES </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">SECURITIES AND EXCHANGE COMMISSION </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Washington, D.C. 20549 </span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">FORM <ix:nonNumeric contextRef="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208" name="dei:DocumentType" id="id3VybDovL2RvY3MudjEvZG9jOjk2NjY4ZWYxNzVlMzRiODlhMzJkMzQwOThiYmRmOWMwL3NlYzo5NjY2OGVmMTc1ZTM0Yjg5YTMyZDM0MDk4YmJkZjljMF8xL2ZyYWc6MGIyYmM2MzAwMzg5NDc3ZmFmZTY1NTc3ZmU0Y2NmNTgvdGV4dHJlZ2lvbjowYjJiYzYzMDAzODk0NzdmYWZlNjU1NzdmZTRjY2Y1OF8xMjU1_64b3cb49-2881-40b8-9635-ba2ccfe8e965">8-K</ix:nonNumeric> </span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CURRENT REPORT </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Pursuant to Section 13 or 15(d) of the </span></div><div style="margin-bottom:6pt;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Securities Exchange Act of 1934 </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Date of Report (Date of earliest event reported): <ix:nonNumeric contextRef="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208" name="dei:DocumentPeriodEndDate" format="ixt:date-monthname-day-year-en" id="id3VybDovL2RvY3MudjEvZG9jOjk2NjY4ZWYxNzVlMzRiODlhMzJkMzQwOThiYmRmOWMwL3NlYzo5NjY2OGVmMTc1ZTM0Yjg5YTMyZDM0MDk4YmJkZjljMF8xL2ZyYWc6MGIyYmM2MzAwMzg5NDc3ZmFmZTY1NTc3ZmU0Y2NmNTgvdGV4dHJlZ2lvbjowYjJiYzYzMDAzODk0NzdmYWZlNjU1NzdmZTRjY2Y1OF8xMDk5NTExNjI5MTEz_5dc04f02-fc3a-44d9-9a11-a52df0eafc28">December 8, 2021</ix:nonNumeric> </span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208" name="dei:EntityRegistrantName" id="id3VybDovL2RvY3MudjEvZG9jOjk2NjY4ZWYxNzVlMzRiODlhMzJkMzQwOThiYmRmOWMwL3NlYzo5NjY2OGVmMTc1ZTM0Yjg5YTMyZDM0MDk4YmJkZjljMF8xL2ZyYWc6MGIyYmM2MzAwMzg5NDc3ZmFmZTY1NTc3ZmU0Y2NmNTgvdGV4dHJlZ2lvbjowYjJiYzYzMDAzODk0NzdmYWZlNjU1NzdmZTRjY2Y1OF8xMjU4_0b6dae20-1d57-457f-83bb-80e01ec53759">Duolingo, Inc.</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(Exact name of registrant as specified in its charter) </span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="margin-bottom:6pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:32.233%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:32.233%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:32.234%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208" name="dei:EntityIncorporationStateCountryCode" format="ixt-sec:stateprovnameen" id="id3VybDovL2RvY3MudjEvZG9jOjk2NjY4ZWYxNzVlMzRiODlhMzJkMzQwOThiYmRmOWMwL3NlYzo5NjY2OGVmMTc1ZTM0Yjg5YTMyZDM0MDk4YmJkZjljMF8xL2ZyYWc6MGIyYmM2MzAwMzg5NDc3ZmFmZTY1NTc3ZmU0Y2NmNTgvdGFibGU6MjVmMjU3N2Y5OWZkNGQ3NWFiNjMxMGYwZGRmZTJlM2MvdGFibGVyYW5nZToyNWYyNTc3Zjk5ZmQ0ZDc1YWI2MzEwZjBkZGZlMmUzY18wLTAtMS0xLTUwMzQ5_b34a4160-4ba0-45cc-8067-8f96df8d4971">Delaware</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208" name="dei:EntityFileNumber" id="id3VybDovL2RvY3MudjEvZG9jOjk2NjY4ZWYxNzVlMzRiODlhMzJkMzQwOThiYmRmOWMwL3NlYzo5NjY2OGVmMTc1ZTM0Yjg5YTMyZDM0MDk4YmJkZjljMF8xL2ZyYWc6MGIyYmM2MzAwMzg5NDc3ZmFmZTY1NTc3ZmU0Y2NmNTgvdGFibGU6MjVmMjU3N2Y5OWZkNGQ3NWFiNjMxMGYwZGRmZTJlM2MvdGFibGVyYW5nZToyNWYyNTc3Zjk5ZmQ0ZDc1YWI2MzEwZjBkZGZlMmUzY18wLTEtMS0xLTUwMzQ5_4104e648-c730-42a6-8e32-942b504fa7be">001-40653</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208" name="dei:EntityTaxIdentificationNumber" id="id3VybDovL2RvY3MudjEvZG9jOjk2NjY4ZWYxNzVlMzRiODlhMzJkMzQwOThiYmRmOWMwL3NlYzo5NjY2OGVmMTc1ZTM0Yjg5YTMyZDM0MDk4YmJkZjljMF8xL2ZyYWc6MGIyYmM2MzAwMzg5NDc3ZmFmZTY1NTc3ZmU0Y2NmNTgvdGFibGU6MjVmMjU3N2Y5OWZkNGQ3NWFiNjMxMGYwZGRmZTJlM2MvdGFibGVyYW5nZToyNWYyNTc3Zjk5ZmQ0ZDc1YWI2MzEwZjBkZGZlMmUzY18wLTItMS0xLTUwMzQ5_a550ad81-b302-4372-9ef0-9433d6c218a1">45-3055872</ix:nonNumeric></span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(State or other jurisdiction</span></div><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">of incorporation)</span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(Commission</span></div><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">File Number)</span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(IRS Employer</span></div><div style="margin-bottom:1pt;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Identification Number)</span></div></td></tr></table></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208" name="dei:EntityAddressAddressLine1" id="id3VybDovL2RvY3MudjEvZG9jOjk2NjY4ZWYxNzVlMzRiODlhMzJkMzQwOThiYmRmOWMwL3NlYzo5NjY2OGVmMTc1ZTM0Yjg5YTMyZDM0MDk4YmJkZjljMF8xL2ZyYWc6MGIyYmM2MzAwMzg5NDc3ZmFmZTY1NTc3ZmU0Y2NmNTgvdGV4dHJlZ2lvbjowYjJiYzYzMDAzODk0NzdmYWZlNjU1NzdmZTRjY2Y1OF8xMjU5_b0b14b14-4d42-467a-a094-43782b37cdca">5900 Penn Avenue</ix:nonNumeric></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208" name="dei:EntityAddressCityOrTown" id="id3VybDovL2RvY3MudjEvZG9jOjk2NjY4ZWYxNzVlMzRiODlhMzJkMzQwOThiYmRmOWMwL3NlYzo5NjY2OGVmMTc1ZTM0Yjg5YTMyZDM0MDk4YmJkZjljMF8xL2ZyYWc6MGIyYmM2MzAwMzg5NDc3ZmFmZTY1NTc3ZmU0Y2NmNTgvdGV4dHJlZ2lvbjowYjJiYzYzMDAzODk0NzdmYWZlNjU1NzdmZTRjY2Y1OF8xMjU2_5f2665ba-f748-4d64-b47b-cba35223efb0">Pittsburgh</ix:nonNumeric>, <ix:nonNumeric contextRef="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208" name="dei:EntityAddressStateOrProvince" format="ixt-sec:stateprovnameen" id="id3VybDovL2RvY3MudjEvZG9jOjk2NjY4ZWYxNzVlMzRiODlhMzJkMzQwOThiYmRmOWMwL3NlYzo5NjY2OGVmMTc1ZTM0Yjg5YTMyZDM0MDk4YmJkZjljMF8xL2ZyYWc6MGIyYmM2MzAwMzg5NDc3ZmFmZTY1NTc3ZmU0Y2NmNTgvdGV4dHJlZ2lvbjowYjJiYzYzMDAzODk0NzdmYWZlNjU1NzdmZTRjY2Y1OF8xMjU3_f3f9f7cd-8966-4c59-8c40-f296c24cd1e5">Pennsylvania</ix:nonNumeric> <ix:nonNumeric contextRef="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208" name="dei:EntityAddressPostalZipCode" id="id3VybDovL2RvY3MudjEvZG9jOjk2NjY4ZWYxNzVlMzRiODlhMzJkMzQwOThiYmRmOWMwL3NlYzo5NjY2OGVmMTc1ZTM0Yjg5YTMyZDM0MDk4YmJkZjljMF8xL2ZyYWc6MGIyYmM2MzAwMzg5NDc3ZmFmZTY1NTc3ZmU0Y2NmNTgvdGV4dHJlZ2lvbjowYjJiYzYzMDAzODk0NzdmYWZlNjU1NzdmZTRjY2Y1OF8xMjYw_dd66e20d-19f7-4672-a3fe-e4f784e5597e">15206</ix:nonNumeric> </span></div><div style="margin-bottom:6pt;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(Address of principal executive offices) (Zip Code) </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Registrant&#8217;s telephone number, including area code: (<ix:nonNumeric contextRef="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208" name="dei:CityAreaCode" id="id3VybDovL2RvY3MudjEvZG9jOjk2NjY4ZWYxNzVlMzRiODlhMzJkMzQwOThiYmRmOWMwL3NlYzo5NjY2OGVmMTc1ZTM0Yjg5YTMyZDM0MDk4YmJkZjljMF8xL2ZyYWc6MGIyYmM2MzAwMzg5NDc3ZmFmZTY1NTc3ZmU0Y2NmNTgvdGV4dHJlZ2lvbjowYjJiYzYzMDAzODk0NzdmYWZlNjU1NzdmZTRjY2Y1OF8xMjYx_aecf4cc9-9823-47b2-9551-6acdb61598ca">412</ix:nonNumeric>) <ix:nonNumeric contextRef="ie13440e3a1ff4a179ac8f6ad4aeaef33_D20211208-20211208" name="dei:LocalPhoneNumber" 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id="i96668ef175e34b89a32d34098bbdf9c0_7"></div><hr style="page-break-after:always"/><div style="min-height:72pt;width:100%"><div><span><br/></span></div></div><div style="-sec-extract:summary;margin-bottom:6pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:1pt solid #000;padding:0 1pt"></td></tr></table></div><div style="margin-bottom:6pt;padding-left:0.25pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Principal Officers; Compensatory Arrangements of Certain Officers.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">On December 8 2021, the Board of Directors (the &#8220;Board&#8221;) of Duolingo, Inc. (the &#8220;Company&#8221;) appointed John Lilly to serve as a Class I director on the Company&#8217;s Board and as a member of the Compensation and Leadership Committee, in each case, effective as of December 15 , 2021.  Mr. Lilly will serve for a term expiring at the Company&#8217;s annual meeting of stockholders to be held in 2022 and until his successor is duly elected and qualified or until his earlier death, resignation, disqualification or removal.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Mr. Lilly is eligible to participate in the Company&#8217;s Non-Employee Director Compensation Program, which provides for: (i) an annual cash retainer of $30,000 for serving on the Board, paid quarterly in arrears (prorated based on his service during the 2021 fiscal year); (ii) an annual cash retainer of $6,000 for serving on the Compensation and Leadership Committee, paid quarterly in arrears (prorated based on his service during the 2021 fiscal year); (iii) an initial award of restricted stock units (&#8220;RSUs&#8221;) equaling $300,000 divided by the closing price of the Company&#8217;s Class A common stock on the date Mr. Lilly commences service on the Board (prorated based on his service [from his commencement of service until the 2022 annual meeting]) and which vests over three years in substantially equal annual installments following the grant date, subject to the director&#8217;s continued service on the Board through each such vesting date; and (iv) an annual RSU award granted on the date of the Company&#8217;s annual meeting of stockholders, provided the director has served on the Board for at least six months prior to such annual meeting and will continue serving following such meeting, in an amount equaling $160,00 divided by the closing price of the Company&#8217;s Class A common stock on the grant date and which vests on the earlier of the first anniversary of the grant date or the day immediately prior to the date of the next annual meeting of the Company&#8217;s stockholders, in either case, subject to the director&#8217;s continued service on the Board through such vesting date. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Mr. Lilly is is expected to enter into the Company&#8217;s standard form indemnification agreement in the form filed as Exhibit 10.12 to the Company&#8217;s Registration Statement on Form S-1/A (File No. 333-257483) filed with the Securities and Exchange Commission on July 19, 2021.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Item 7.01 Regulation FD Disclosure.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The Company issued a press release announcing the appointment of Mr. Lilly. A copy of the press release is furnished as Exhibits 99.1 to this Current Report on Form 8-K and is incorporated in this Item 7.01 by reference.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The information in this Item 7.01 (including Exhibit 99.1) of this Form 8-K is being furnished and shall not be deemed &#8220;filed&#8221; for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;), or otherwise subject to the liabilities of that Section, nor shall it be deemed to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.</span></div><div style="margin-bottom:6pt;padding-left:0.25pt"><span><br/></span></div><div style="margin-bottom:6pt;padding-left:0.25pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Item&#160;9.01 Financial Statements and Exhibits.</span></div><div style="margin-bottom:6pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(d) Exhibits. </span></div><div style="margin-bottom:6pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:8.996%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.441%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:88.163%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:700;line-height:120%">Exhibit&#160;No.</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:700;line-height:120%">Description</span></td></tr><tr style="height:3pt"><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">99.1</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#0000ff;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline" href="a20211214johnlillyappointm.htm">Press Release dated </a><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline" href="a20211214johnlillyappointm.htm">De</a><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline" href="a20211214johnlillyappointm.htm">cember 14</a><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline" href="a20211214johnlillyappointm.htm">, 2021</a></span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">104</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Cover Page Interactive Data File (embedded within the inline XBRL document)</span></td></tr></table></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><div id="i96668ef175e34b89a32d34098bbdf9c0_10"></div><hr style="page-break-after:always"/><div style="min-height:72pt;width:100%"><div><span><br/></span></div></div><div style="margin-bottom:6pt;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">SIGNATURES </span></div><div style="margin-bottom:6pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. </span></div><div style="margin-bottom:6pt;padding-left:0.25pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.839%"><tr><td style="width:1.0%"></td><td style="width:46.733%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:3.233%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:46.734%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">DUOLINGO, INC.</span></td></tr><tr style="height:14pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Date: December 14, 2021</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">By:</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">/s/ Matthew Skaruppa</span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Matthew Skaruppa</span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Chief Financial Officer</span></div></td></tr></table></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div></body></html>
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duol-20211208
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM
8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report (Date of earliest event reported):
December 8, 2021
Duolingo, Inc.
(Exact name of registrant as specified in its charter)
Delaware
001-40653
45-3055872
(State or other jurisdiction
of incorporation)
(Commission
File Number)
(IRS Employer
Identification Number)
5900 Penn Avenue
Pittsburgh
,
Pennsylvania
15206
(Address of principal executive offices) (Zip Code)
Registrant's telephone number, including area code: (
412
)
567-6602
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
☐
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading
Symbol(s)
Name of each exchange on which registered
Class A common stock, $0.0001 par value per share
DUOL
The
Nasdaq
Stock Market
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company
☒
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
☐
Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Principal Officers; Compensatory Arrangements of Certain Officers.
On December 8 2021, the Board of Directors (the "Board") of Duolingo, Inc. (the "Company") appointed John Lilly to serve as a Class I director on the Company's Board and as a member of the Compensation and Leadership Committee, in each case, effective as of December 15 , 2021.  Mr. Lilly will serve for a term expiring at the Company's annual meeting of stockholders to be held in 2022 and until his successor is duly elected and qualified or until his earlier death, resignation, disqualification or removal.
Mr. Lilly is eligible to participate in the Company's Non-Employee Director Compensation Program, which provides for: (i) an annual cash retainer of $30,000 for serving on the Board, paid quarterly in arrears (prorated based on his service during the 2021 fiscal year); (ii) an annual cash retainer of $6,000 for serving on the Compensation and Leadership Committee, paid quarterly in arrears (prorated based on his service during the 2021 fiscal year); (iii) an initial award of restricted stock units ("RSUs") equaling $300,000 divided by the closing price of the Company's Class A common stock on the date Mr. Lilly commences service on the Board (prorated based on his service [from his commencement of service until the 2022 annual meeting]) and which vests over three years in substantially equal annual installments following the grant date, subject to the director's continued service on the Board through each such vesting date; and (iv) an annual RSU award granted on the date of the Company's annual meeting of stockholders, provided the director has served on the Board for at least six months prior to such annual meeting and will continue serving following such meeting, in an amount equaling $160,00 divided by the closing price of the Company's Class A common stock on the grant date and which vests on the earlier of the first anniversary of the grant date or the day immediately prior to the date of the next annual meeting of the Company's stockholders, in either case, subject to the director's continued service on the Board through such vesting date.
Mr. Lilly is is expected to enter into the Company's standard form indemnification agreement in the form filed as Exhibit 10.12 to the Company's Registration Statement on Form S-1/A (File No. 333-257483) filed with the Securities and Exchange Commission on July 19, 2021.
Item 7.01 Regulation FD Disclosure.
The Company issued a press release announcing the appointment of Mr. Lilly. A copy of the press release is furnished as Exhibits 99.1 to this Current Report on Form 8-K and is incorporated in this Item 7.01 by reference.
The information in this Item 7.01 (including Exhibit 99.1) of this Form 8-K is being furnished and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that Section, nor shall it be deemed to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits.
Exhibit No.
Description
99.1
Press Release dated
De
cember 14
, 2021
104
Cover Page Interactive Data File (embedded within the inline XBRL document)
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
DUOLINGO, INC.
Date: December 14, 2021
By:
/s/ Matthew Skaruppa
Matthew Skaruppa
Chief Financial Officer