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Duolingo, Inc. planned insider sales

In the twelve months since 9 October 2025 insiders at Duolingo, Inc. filed 33 Form 144 notices of planned sales, 364,288 shares worth $53.7 million at the time of filing, from 8 sellers. The latest, filed 7 October 2026: Luis Von Ahn Arellano (director, officer, 10% stockholder), 110,046 shares worth $16.3 million, planned for around 7 October 2026 through Morgan Stanley Smith Barney LLC Executive Financial Services.

FiledSellerRelationshipSharesValuePlanned saleBrokerHow acquiredFiling
7 October 2026Luis Von Ahn ArellanoDirector, Officer, 10% Stockholder110,046$16.3 million7 October 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
24 September 2026Luis Von Ahn ArellanoDirector, Officer, 10% Stockholder46,682$6.8 million24 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
22 September 2026Luis Von Ahn ArellanoDirector, Officer, 10% Stockholder3,614$540,00422 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
21 September 2026Luis Von Ahn FoundationDirector, Officer, 10% Stockholder34,992$5.0 million21 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesFounders SharesForm 144
21 September 2026Luis Von Ahn ArellanoDirector, Officer, 10% Stockholder37,366$5.3 million21 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
16 September 2026Luis Von Ahn FoundationDirector, Officer, 10% Stockholder19,008$2.9 million16 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesFounders SharesForm 144
16 September 2026Luis Von Ahn ArellanoDirector, Officer, 10% Stockholder28,292$4.4 million16 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
14 September 2026Stephen ChenOfficer8,072$1.2 million14 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesPreviously Exercised Stock Options; Restricted Stock UnitsForm 144
8 September 2026William B. GordonDirector20,000$3.1 million8 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesPro Rata Distributions in KindForm 144
18 August 2026Natalie GlanceOfficer1,539$200,31618 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
17 August 2026Stephen ChenOfficer1,024$132,23017 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
17 August 2026Robert MeeseOfficer1,354$174,84417 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
17 August 2026Natalie GlanceOfficer2,751$355,24017 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
18 May 2026Stephen ChenOfficer1,977$221,54318 May 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
18 May 2026Natalie GlanceOfficer3,360$376,52218 May 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
15 May 2026Stephen ChenOfficer820$91,96715 May 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
15 May 2026Robert MeeseOfficer1,420$159,26015 May 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
15 May 2026Natalie GlanceOfficer1,929$216,34715 May 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
18 February 2026Stephen ChenOfficer1,901$213,06418 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
18 February 2026Natalie GlanceOfficer3,545$397,32418 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
18 February 2026Matthew SkaruppaOfficer3,986$446,75118 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
17 February 2026Stephen ChenOfficer896$98,61417 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
17 February 2026Robert MeeseOfficer1,000$110,06117 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
17 February 2026Natalie GlanceOfficer1,741$191,61617 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
17 February 2026Matthew SkaruppaOfficer1,870$205,81317 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
12 December 2025The Severin Hacker Foundationc/O Philip BartelsDirector, Officer, 10% Stockholder10,000$2.0 million12 December 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesFounders SharesForm 144
18 November 2025Stephen ChenOfficer1,514$269,90118 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
18 November 2025Natalie GlanceOfficer2,471$440,50518 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
18 November 2025Matthew SkaruppaOfficer3,059$545,32818 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
17 November 2025Stephen ChenOfficer1,282$228,13517 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
17 November 2025Robert MeeseOfficer1,444$256,96317 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
17 November 2025Natalie GlanceOfficer2,534$450,93217 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
17 November 2025Matthew SkaruppaOfficer2,799$498,08917 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Whether the sale happened shows up later on Form 4, on the insiders page.

Source

Form 144 filings on EDGAR for Duolingo, Inc.: the company's filing index, each notice read from its own XML.

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