X0306 4 2021-11-04 0001562088 Duolingo, Inc. DUOL 0001829124 CapitalG 2014 LP 1600 AMPHITHEATRE PARKWAY MOUNTAIN VIEW CA 94043 true 0001829123 CapitalG 2014 GP LLC 1600 AMPHITHEATRE PARKWAY MOUNTAIN VIEW CA 94043 true 0001771167 CapitalG 2015 LP 1600 AMPHITHEATRE PARKWAY MOUNTAIN VIEW CA 94043 true 0001779462 CapitalG II GP LLC 1600 AMPHITHEATRE PARKWAY MOUNTAIN VIEW CA 94043 true 0001847337 Alphabet Holdings LLC 1600 AMPHITHEATRE PARKWAY MOUNTAIN VIEW CA 94043 true 0001652044 Alphabet Inc. 1600 AMPHITHEATRE PARKWAY MOUNTAIN VIEW CA 94043 true 0001779076 CapitalG II LP 1600 AMPHITHEATRE PARKWAY MOUNTAIN VIEW CA 94043 true 0001779431 CapitalG 2015 GP LLC 1600 AMPHITHEATRE PARKWAY MOUNTAIN VIEW CA 94043 true Class A Common Stock 2021-11-04 4 C 0 388364 A 388364 I See Footnotes Class A Common Stock 2021-11-04 4 C 0 323940 A 323940 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 7546 138.3 D 380818 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 6294 138.3 D 317646 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 5784 139.3 D 375034 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 4825 139.3 D 312821 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 12368 140.33 D 362666 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 10316 140.33 D 302505 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 4709 141.28 D 357957 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 3927 141.28 D 298578 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 2726 142.51 D 355231 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 2274 142.51 D 296304 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 1854 143.29 D 353377 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 1547 143.29 D 294757 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 1777 144.74 D 351600 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 1483 144.74 D 293274 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 15543 145.95 D 336057 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 12965 145.95 D 280309 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 8615 146.55 D 327442 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 7186 146.55 D 273123 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 2019 147.63 D 325423 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 1684 147.63 D 271439 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 1145 148.64 D 324278 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 955 148.64 D 270484 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 109 150.16 D 324169 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 91 150.16 D 270393 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 110 151.01 D 324059 I See Footnotes Class A Common Stock 2021-11-15 4 S 0 90 151.01 D 270303 I See Footnotes Class B Common Stock 2021-11-04 4 C 0 388364 D Class A Common Stock 388364 945920 I See Footnotes Class B Common Stock 2021-11-04 4 C 0 323940 D Class A Common Stock 323940 789001 I See Footnotes Class B Common Stock Class A Common Stock 758146 I See Footnotes Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock in connection with: (i) any transfer, whether or not for value, except for certain permitted transfers further described in the Issuer's amended and restated certificate of incorporation and (ii) such time as the aggregate number of shares of Class B Common Stock outstanding ceases to represent 5% of the aggregate number of shares of Common Stock outstanding. Shares held by CapitalG 2014 LP. CapitalG 2014 GP LLC, the general partner of CapitalG 2014 LP, Alphabet Holdings LLC, the managing member of CapitalG 2014 GP LLC, XXVI Holdings Inc., the managing member of Alphabet Holdings LLC, and Alphabet Inc., the controlling stockholder of XXVI Holdings Inc., may each be deemed to have sole voting and dispositive power with respect to the shares held directly by CapitalG 2014 LP. Each of CapitalG 2014 GP LLC, CapitalG 2015 GP LLC, CapitalG II GP LLC, Alphabet Holdings LLC, XXVI Holdings Inc., and Alphabet Inc. disclaims beneficial ownership of these shares, except to the extent of any pecuniary interest therein. Shares held by CapitalG 2015 LP. CapitalG 2015 GP LLC, the general partner of CapitalG 2015 LP, Alphabet Holdings LLC, the managing member of CapitalG 2015 GP LLC, XXVI Holdings Inc., the managing member of Alphabet Holdings LLC, and Alphabet Inc., the controlling stockholder of XXVI Holdings Inc., may each be deemed to have sole voting and dispositive power with respect to the shares held directly by CapitalG 2015 LP. The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted by the Reporting Person. Weighted average sale price for Class A Common Stock sold. Actual sales price for shares sold ranged from $137.88 to $138.84. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission full information regarding the number of shares sold at each separate price with respect to every sale reported in this filing. Weighted average sale price for Class A Common Stock sold. Actual sales price for shares sold ranged from $138.88 to $139.74. Weighted average sale price for Class A Common Stock sold. Actual sales price for shares sold ranged from $139.92 to $140.82. Weighted average sale price for Class A Common Stock sold. Actual sales price for shares sold ranged from $140.95 to $141.85. Weighted average sale price for Class A Common Stock sold. Actual sales price for shares sold ranged from $141.97 to $142.965. Weighted average sale price for Class A Common Stock sold. Actual sales price for shares sold ranged from $142.98 to $143.85. Weighted average sale price for Class A Common Stock sold. Actual sales price for shares sold ranged from $144.20 to $145.135. Weighted average sale price for Class A Common Stock sold. Actual sales price for shares sold ranged from $145.20 to $146.19. Weighted average sale price for Class A Common Stock sold. Actual sales price for shares sold ranged from $146.20 to $147.19. Weighted average sale price for Class A Common Stock sold. Actual sales price for shares sold ranged from $147.20 to $148.16. Weighted average sale price for Class A Common Stock sold. Actual sales price for shares sold ranged from $148.2425 to $149.00. Weighted average sale price for Class A Common Stock sold. Actual sales price for shares sold ranged from $150.00 to $150.325. Weighted average sale price for Class A Common Stock sold. Actual sales price for shares sold ranged from $151.00 to $151.01. Shares held by CapitalG II LP. CapitalG II GP LLC, the general partner of CapitalG II LP, Alphabet Holdings LLC, the managing member of CapitalG II GP LLC, XXVI Holdings Inc., the managing member of Alphabet Holdings LLC, and Alphabet Inc., the controlling stockholder of XXVI Holdings Inc., may each be deemed to have sole voting and dispositive power with respect to the shares held directly by CapitalG II LP. No transaction is being reported. The holding of such shares by the reporting person was previously reported. /s/ Bryan Keighery, as attorney-in-fact for CAPITALG 2014 LP 2022-02-10 /s/ Bryan Keighery, as attorney-in-fact for CAPITALG 2014 GP LLC 2022-02-10 /s/ Bryan Keighery, as attorney-in-fact for CAPITALG 2015 LP 2022-02-10 /s/ Bryan Keighery, as attorney-in-fact for CAPITALG 2015 GP LLC 2022-02-10 /s/ Bryan Keighery, as attorney-in-fact for CAPITALG II LP 2022-02-10 /s/ Bryan Keighery, as attorney-in-fact for CAPITALG II GP LLC 2022-02-10 /s/ Bryan Keighery, as attorney-in-fact for ALPHABET HOLDINGS LLC 2022-02-10 /s/ Bryan Keighery, as attorney-in-fact for ALPHABET INC. 2022-02-10