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Duolingo, Inc.

DUOL
Exchange
Nasdaq
Industry
Services-Prepackaged Software
SEC CIK
0001562088

In the last 90 days, Duolingo, Inc. insiders filed 0 open-market purchases and 8 sales; 435 institutions reported holding it in 13F filings for Q2 2026, worth $4.58B in total; no superinvestor holds it.

Holders of 5% or more of DUOL

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Duolingo, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of DUOL
HolderLatest formStakeChangeFirst filedLatest filingFiling
Baillie Gifford & Co13G/A12.40%4.90M shares+5.30 ppfrom 7.10%Dec 6, 20219 filingsNov 4, 2025SEC
von Ahn Luis13G/A8.20%3.59M shares–Feb 11, 20224 filingsAug 12, 2026SEC
Hacker Severin13G/A7.60%3.20M shares–Feb 11, 20224 filingsApr 17, 2025SEC
AQR Capital Management LLC13G5.80%2.33M sharesNewAug 12, 20261 filingAug 12, 2026SEC
Baillie Gifford & Co13G5.60%2.20M shares−1.60 ppfrom 7.20%Feb 12, 20252 filingsAug 8, 2025SEC
Vanguard Capital Management LLC13G5.10%2.05M sharesNewJul 31, 20261 filingJul 31, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

58 Schedule 13D and 13G filings on Duolingo, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on DUOL
Filed (ET)FilerFormStakeChangeEvent dateFiling
Feb 11, 2022KPCB Digital Growth Fund, LLC13GOld format–New–SEC
Feb 11, 2022General Atlantic LLC13GOld format–New–SEC
Feb 11, 2022Morgan Stanley13GOld format–New–SEC
Jan 18, 2022Foxhaven Asset Management, LP13GOld format–New–SEC
Jan 18, 2022Baillie Gifford & Co13G/AOld format–––SEC
Jan 6, 2022Durable Capital Partners LP13G/AOld format–––SEC
Dec 10, 2021Durable Capital Partners LP13GOld format–New–SEC
Dec 6, 2021Baillie Gifford & Co13GOld format–New–SEC

Form 144: proposed insider sales

135 notices from officers, directors and other affiliates planning to sell Duolingo, Inc. shares, newest first.

Form 144 notices for DUOL
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
Sep 24, 20264:41 PM ETLuis Von Ahn ArellanoDirector · Officer · 10% stockholder46.7K$6.81MSep 24, 202610b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Feb 18, 20264:41 PM ETStephen ChenOfficer1.90K$213.1KFeb 18, 202610b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Feb 18, 20264:41 PM ETMatthew SkaruppaOfficer3.99K$446.8KFeb 18, 202610b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Feb 18, 20264:40 PM ETNatalie GlanceOfficer3.54K$397.3KFeb 18, 202610b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Feb 17, 20265:22 PM ETMatthew SkaruppaOfficer1.87K$205.8KFeb 17, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Feb 17, 20265:11 PM ETNatalie GlanceOfficer1.74K$191.6KFeb 17, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Feb 17, 20264:29 PM ETStephen ChenOfficer896$98.6KFeb 17, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Feb 17, 20264:28 PM ETRobert MeeseOfficer1.00K$110.1KFeb 17, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Dec 12, 20254:20 PM ETThe Severin Hacker Foundationc/O Philip BartelsDirector · Officer · 10% stockholder10.0K$2.01MDec 12, 202510b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 18, 20254:22 PM ETMatthew SkaruppaOfficer3.06K$545.3KNov 18, 202510b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 18, 20254:22 PM ETStephen ChenOfficer1.51K$269.9KNov 18, 202510b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 18, 20254:21 PM ETNatalie GlanceOfficer2.47K$440.5KNov 18, 202510b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 17, 20254:21 PM ETRobert MeeseOfficer1.44K$257.0KNov 17, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 17, 20254:13 PM ETNatalie GlanceOfficer2.53K$450.9KNov 17, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 17, 20254:02 PM ETStephen ChenOfficer1.28K$228.1KNov 17, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 17, 20254:02 PM ETMatthew SkaruppaOfficer2.80K$498.1KNov 17, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Oct 8, 20254:21 PM ETLuis Von Ahn FoundationDirector · Officer · 10% stockholder1.00K$320.0KOct 8, 202510b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Oct 6, 20254:18 PM ETSeverin HackerDirector · Officer · 10% stockholder40.0K$12.9MOct 6, 202510b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Aug 26, 20254:30 PM ETStephen ChenOfficer1.51K$487.0KAug 26, 202510b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Aug 26, 20254:29 PM ETMatthew SkaruppaOfficer10.9K$3.52MAug 26, 202510b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Aug 18, 20254:33 PM ETNatalie GlanceOfficer5.75K$1.88MAug 18, 202510b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Aug 15, 20254:47 PM ETNatalie GlanceOfficer2.53K$833.4KAug 15, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Aug 15, 20254:31 PM ETMatthew SkaruppaOfficer2.80K$920.3KAug 15, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Aug 15, 20254:28 PM ETRobert MeeseOfficer1.44K$475.1KAug 15, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Aug 15, 20254:13 PM ETStephen ChenOfficer1.28K$421.8KAug 15, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC

Showing the latest 25. See the DUOL notices from the last 12 months