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DUOL

Duolingo, Inc.

TechnologyS&P 500

Duolingo, Inc. insider trading

Duolingo, Inc. files with the SEC as a Services-Prepackaged Software company headquartered in Pittsburgh, PA. Every time one of its executives or directors buys or sells the stock, the filing appears here the moment it reaches the SEC — with grants and option exercises set apart from the trades that cost the insider their own money.

From SEC filings

Recent DUOL insider transactions

6 insiders traded DUOL on the open market between Mar 03, 2026 and Sep 16, 2026 — 1 purchase worth $498.8K, 22 sales worth $8.9M, of which 19 were pre-scheduled under a 10b5-1 plan.

Bought
$498.8K
Sold
$8.9M

19 of 22 on a 10b5-1 plan

Net
−$8.4M
Insiders
6

Open-market purchases (code P) and sales (code S) from Duolingo, Inc.'s own SEC Form 4 filings. Grants and option exercises are excluded — they are compensation, not decisions. Share counts are derived from the reported value and price. Verify any figure against the original filing before acting on it; this is monitoring, not advice.

Filing history last read from EDGAR on Sep 22, 2026. The live dashboard shows new filings the moment they clear.

Every DUOL Form 4 on SEC.gov

SEC Form 4 data, Q3 2024 to Q2 2026

DUOL insider trading by quarter

Between Jul 01, 2024 and Jun 30, 2026, 8 insiders traded DUOL on the open market: 1 purchase worth $498.8K and 675 sales worth $349.4M, 641 of the sales pre-scheduled under a 10b5-1 plan. In the last four quarters alone: 1 purchase ($498.8K) and 189 sales ($45.8M), by 6 insiders.

QuarterBoughtSold
Q2 2026—−$1.1M7 sales · 6 on a plan
Q1 2026+$498.8K1 buy−$1.7M16 sales · 15 on a plan
Q4 2025—−$14.4M71 sales · 70 on a plan
Q3 2025—−$28.6M95 sales · 91 on a plan
Q2 2025—−$46M132 sales · 116 on a plan
Q1 2025—−$49.8M139 sales · 136 on a plan
Q4 2024—−$182.7M139 sales · 135 on a plan
Q3 2024—−$25.1M76 sales · 72 on a plan
Largest purchase
+$498.8K of DUOL by Shelton James H (Director) on Mar 03, 2026.
Largest sale
−$16.1M of DUOL by von Ahn Luis (President & CEO, Co-Founder · Director) on Dec 16, 2024, under a 10b5-1 plan.

Profile: Luis von Ahn (President & CEO, Co-Founder) — two years of that insider's own trades, company by company.

Open-market transactions through Jun 30, 2026most recent first

  • Glance Natalie10b5-1

    Chief Engineering Officer

    −$233.2K

    May 18, 2026

    2,060 sh · $113.21

  • Glance Natalie10b5-1

    Chief Engineering Officer

    −$148.4K

    May 18, 2026

    1,300 sh · $114.19

  • Chen Stephen C.10b5-1

    General Counsel

    −$144.6K

    May 18, 2026

    1,277 sh · $113.27

  • Chen Stephen C.10b5-1

    General Counsel

    −$80K

    May 18, 2026

    700 sh · $114.22

  • Shelton James H

    Director

    +$498.8K

    Mar 03, 2026

    5,000 sh · $99.76

  • Skaruppa Matthew10b5-1

    Chief Financial Officer

    −$201.7K

    Feb 18, 2026

    1,764 sh · $114.35

  • Skaruppa Matthew10b5-1

    Chief Financial Officer

    −$182.5K

    Feb 18, 2026

    1,626 sh · $112.26

  • Glance Natalie10b5-1

    Chief Engineering Officer

    −$173.7K

    Feb 18, 2026

    1,520 sh · $114.29

  • Glance Natalie10b5-1

    Chief Engineering Officer

    −$168.3K

    Feb 18, 2026

    1,499 sh · $112.30

  • Chen Stephen C.10b5-1

    General Counsel

    −$91.8K

    Feb 18, 2026

    821 sh · $111.83

  • Chen Stephen C.10b5-1

    General Counsel

    −$59.6K

    Feb 18, 2026

    520 sh · $114.55

  • Chen Stephen C.10b5-1

    General Counsel

    −$54.7K

    Feb 18, 2026

    480 sh · $113.95

  • Skaruppa Matthew10b5-1

    Chief Financial Officer

    −$41.5K

    Feb 18, 2026

    360 sh · $115.29

  • Glance Natalie10b5-1

    Chief Engineering Officer

    −$41.5K

    Feb 18, 2026

    360 sh · $115.29

  • Skaruppa Matthew10b5-1

    Chief Financial Officer

    −$26.8K

    Feb 18, 2026

    236 sh · $113.37

From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.

Duolingo, Inc. company record

SEC industry classification
Services-Prepackaged Software
Headquarters
Pittsburgh, PA
Incorporated in
DE
Listed on
Nasdaq
SEC Central Index Key
0001562088

Sourced from this company's own SEC submissions record. The industry label is SEC's Standard Industrial Classification, which is more specific than the Technology sector shown above.

After insiders bought DUOL

What the stock actually did in the 90 days following each open-market purchase

Don't check DUOL — let it ping you

Get told the moment an insider moves on DUOL

Pro watches Duolingo, Inc. for you and sends a Telegram ping within moments of a Form 4 clearing EDGAR — a C-suite open-market buy, a cluster, a 10b5-1 regime break — long before it reaches the press. Add DUOL to a watchlist, see each mover's benchmark-measured track record and which legendary funds hold it, and read the full filing history instead of the last 72 hours.

Track DUOL on the live dashboardFilings on SEC.gov

The live dashboard is free to open. Alerts, watchlists, full filing history and each mover's benchmark-measured track record are Pro. Monitoring, not advice.

How to read DUOL insider activity

Open-market purchase (code P)
An insider spending their own money at market price. This is the only buy code that reliably carries signal — it is a decision, not compensation.
Grants and option exercises (codes A, M)
Scheduled compensation. Most "insider buying" headlines are really this, which is why InsiderPulse weights it at a fraction of a real purchase.
Cluster buy
Two or more different insiders buying on the open market in the same window. One executive buying can mean anything; three is much harder to explain away.

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This week on the tape: who actually chose to sellThe weekly split of scheduled 10b5-1 selling vs deliberate sales, with the deciders named.

Questions

Are DUOL insiders buying or selling?
Between Mar 03, 2026 and Sep 16, 2026, 6 Duolingo, Inc. insiders made 1 open-market purchase worth $498.8K and 22 sales worth $8.9M, a net sale of $8.4M. 19 of the sales were pre-scheduled under a Rule 10b5-1 plan.
How much DUOL stock have insiders bought and sold in the last two years?
Between Jul 01, 2024 and Jun 30, 2026, 8 Duolingo, Inc. insiders made 1 open-market purchase worth $498.8K and 675 sales worth $349.4M. 641 of the sales were pre-scheduled under a Rule 10b5-1 plan. In the four quarters to Jun 30, 2026: 1 purchase ($498.8K) and 189 sales ($45.8M). The largest purchase was Shelton James H buying $498.8K on Mar 03, 2026. The largest sale was von Ahn Luis selling $16.1M on Dec 16, 2024.
What was the largest recent DUOL insider trade?
von Ahn Luis (President & CEO, Co-Founder · Director) sold $4.1M of DUOL stock on Sep 16, 2026 at about $150.17 a share, under a pre-scheduled 10b5-1 plan.
When did an insider last buy DUOL shares?
The most recent open-market purchase on file is Shelton James H (Director) buying $498.8K on Mar 03, 2026.
Where does DUOL insider trading data come from?
From the Form 4 filings Duolingo, Inc.'s officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.

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