Duolingo, Inc. Insider Trading

DUOL

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Last 12 months

Insiders bought 499K and sold $46.2M on the open market.

98% of the selling was scheduled in advance under 10b5-1 plans.

Net open-market

−$45.7M

1 buy · 22 sales

Under a 10b5-1 plan

98%

of the value sold

Insiders who bought / sold

1 / 7

executives and directors

Last open-market buy

Mar 2026

Mar 3, 2026

Get an email when DUOL's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Nov 2	William B Gordon Director	Sold10b5-1 plan 8 parts	10,000	$136.38 average	$1.36M	15%	Form 4
Oct 7	Luis Von Ahn President & CEO, Co-Founder	Sold10b5-1 plan 4 parts	110,046	$151.70 average	$16.7M	100%	Form 4
Sep 24	Luis Von Ahn President & CEO, Co-Founder	Sold10b5-1 plan 3 parts	46,682	$150.63 average	$7.03M	100%	Form 4
Sep 21 – 22	Luis Von Ahn President & CEO, Co-Founder	Sold10b5-1 plan 4 parts	40,980	$150.65 average	$6.17M	100%	Form 4
Sep 16	Luis Von Ahn President & CEO, Co-Founder	Sold10b5-1 plan 2 parts	28,292	$150.22 average	$4.25M	100%	Form 4
Sep 14	Stephen C. Chen General Counsel	Sold10b5-1 plan 2 parts	8,072	$149.33 average	$1.21M	16%	Form 4
Sep 8	William B Gordon Director	Sold10b5-1 plan 6 parts	10,000	$145.67 average	$1.46M	13%	Form 4
Aug 17 – 18	Natalie Glance Chief Engineering Officer	Sold10b5-1 plan 3 parts	4,290	$132.24 average	567K	2.5%	Form 4
Aug 17	Robert Meese Chief Business Officer	SoldNo plan	1,354	$129.13	175K	0.8%	Form 4
Aug 17	Stephen C. Chen General Counsel	SoldNo plan	1,024	$129.13	132K	1.9%	Form 4
May 15 – 18	Stephen C. Chen General Counsel	Sold10b5-1 plan 3 parts	2,797	$113.18 average	317K	5.0%	Form 4
May 15 – 18	Natalie Glance Chief Engineering Officer	Sold10b5-1 plan 3 parts	5,289	$113.07 average	598K	3.0%	Form 4
May 15	Robert Meese Chief Business Officer	SoldNo plan	1,420	$112.16	159K	0.8%	Form 4
Mar 3	James H Shelton Director	Bought	5,000	$99.76	499K	108%	Form 4
Feb 17 – 18	Matthew Skaruppa Chief Financial Officer	Sold10b5-1 plan 5 parts	5,856	$112.42 average	658K	16%	Form 4
Feb 17 – 18	Stephen C. Chen General Counsel	Sold10b5-1 plan 5 parts	2,797	$112.24 average	314K	8.4%	Form 4
Feb 17 – 18	Natalie Glance Chief Engineering Officer	Sold10b5-1 plan 5 parts	5,286	$112.38 average	594K	4.4%	Form 4
Feb 17	Robert Meese Chief Business Officer	SoldNo plan	1,000	$110.06	110K	0.8%	Form 4
Nov 19, 2025	Severin Hacker Chief Tech Officer, Co-Founder	Sold10b5-1 plan 8 parts	10,000	$172.75 average	$1.73M	99%	Form 4
Nov 17, 2025 – Nov 18, 2025	Stephen C. Chen General Counsel	Sold10b5-1 plan 5 parts	2,796	$176.82 average	494K	8.1%	Form 4
Nov 17, 2025 – Nov 18, 2025	Matthew Skaruppa Chief Financial Officer	Sold10b5-1 plan 6 parts	5,858	$176.81 average	$1.04M	14%	Form 4
Nov 17, 2025 – Nov 18, 2025	Natalie Glance Chief Engineering Officer	Sold10b5-1 plan 6 parts	5,005	$176.88 average	885K	4.3%	Form 4
Nov 17, 2025	Robert Meese Chief Business Officer	SoldNo plan	1,444	$177.95	257K	1.1%	Form 4
Nov 4, 2025	Severin Hacker Chief Tech Officer, Co-Founder	Sold10b5-1 plan 10 parts	10,000	$263.13 average	$2.63M	99%	Form 4
Oct 20, 2025	Severin Hacker Chief Tech Officer, Co-Founder	Sold10b5-1 plan 15 parts	10,000	$314.72 average	$3.15M	99%	Form 4
Oct 6, 2025	Severin Hacker Chief Tech Officer, Co-Founder	Sold10b5-1 plan 11 parts	10,000	$321.63 average	$3.22M	99%	Form 4
Oct 1, 2025	Natalie Glance Chief Engineering Officer	Sold10b5-1 plan 9 parts	3,283	$312.30 average	$1.03M	2.7%	Form 4
Sep 19, 2025	Severin Hacker Chief Tech Officer, Co-Founder	Sold10b5-1 plan 5 parts	10,000	$288.93 average	$2.89M	99%	Form 4
Sep 5, 2025	Severin Hacker Chief Tech Officer, Co-Founder	Sold10b5-1 plan 8 parts	10,000	$268.55 average	$2.69M	99%	Form 4
Aug 26, 2025	Stephen C. Chen General Counsel	Sold10b5-1 plan	1,515	$321.36	487K	4.4%	Form 4
Aug 26, 2025	Matthew Skaruppa Chief Financial Officer	Sold10b5-1 plan 10 parts	10,937	$317.39 average	$3.47M	20%	Form 4
Aug 19, 2025	Severin Hacker Chief Tech Officer, Co-Founder	Sold10b5-1 plan 17 parts	10,000	$344.56 average	$3.45M	99%	Form 4
Aug 18, 2025	Natalie Glance Chief Engineering Officer	Sold10b5-1 plan 5 parts	2,471	$367.10 average	907K	2.0%	Form 4
Aug 15, 2025	Stephen C. Chen General Counsel	SoldNo plan	1,282	$329.03	422K	3.6%	Form 4
Aug 15, 2025	Matthew Skaruppa Chief Financial Officer	SoldNo plan	2,797	$329.03	920K	5.0%	Form 4
Aug 15, 2025	Natalie Glance Chief Engineering Officer	SoldNo plan	2,533	$329.03	833K	2.0%	Form 4
Aug 15, 2025	Robert Meese Chief Business Officer	SoldNo plan	1,444	$329.03	475K	1.2%	Form 4
Aug 5, 2025	Severin Hacker Chief Tech Officer, Co-Founder	Sold10b5-1 plan 12 parts	10,000	$344.41 average	$3.44M	99%	Form 4
Jul 21, 2025	Severin Hacker Chief Tech Officer, Co-Founder	Sold10b5-1 plan 13 parts	10,000	$360.33 average	$3.6M	99%	Form 4
Jul 7, 2025	Severin Hacker Chief Tech Officer, Co-Founder	Sold10b5-1 plan 9 parts	10,000	$392.89 average	$3.93M	99%	Form 4

Nov 210b5-1 plan
William B Gordon
Director · sold 10,000 at avg $136.38
$1.36M
15% of stake
Oct 710b5-1 plan
Luis Von Ahn
President & CEO, Co-Founder · sold 110,046 at avg $151.70
$16.7M
100% of stake
Sep 2410b5-1 plan
Luis Von Ahn
President & CEO, Co-Founder · sold 46,682 at avg $150.63
$7.03M
100% of stake
Sep 21 – 2210b5-1 plan
Luis Von Ahn
President & CEO, Co-Founder · sold 40,980 at avg $150.65
$6.17M
100% of stake
Sep 1610b5-1 plan
Luis Von Ahn
President & CEO, Co-Founder · sold 28,292 at avg $150.22
$4.25M
100% of stake
Sep 1410b5-1 plan
Stephen C. Chen
General Counsel · sold 8,072 at avg $149.33
$1.21M
16% of stake
Sep 810b5-1 plan
William B Gordon
Director · sold 10,000 at avg $145.67
$1.46M
13% of stake
Aug 17 – 1810b5-1 plan
Natalie Glance
Chief Engineering Officer · sold 4,290 at avg $132.24
567K
2.5% of stake
Aug 17No plan
Robert Meese
Chief Business Officer · sold 1,354 at $129.13
175K
0.8% of stake
Aug 17No plan
Stephen C. Chen
General Counsel · sold 1,024 at $129.13
132K
1.9% of stake
May 15 – 1810b5-1 plan
Stephen C. Chen
General Counsel · sold 2,797 at avg $113.18
317K
5.0% of stake
May 15 – 1810b5-1 plan
Natalie Glance
Chief Engineering Officer · sold 5,289 at avg $113.07
598K
3.0% of stake
May 15No plan
Robert Meese
Chief Business Officer · sold 1,420 at $112.16
159K
0.8% of stake
Mar 3
James H Shelton
Director · bought 5,000 at $99.76
499K
108% of stake
Feb 17 – 1810b5-1 plan
Matthew Skaruppa
Chief Financial Officer · sold 5,856 at avg $112.42
658K
16% of stake
Feb 17 – 1810b5-1 plan
Stephen C. Chen
General Counsel · sold 2,797 at avg $112.24
314K
8.4% of stake
Feb 17 – 1810b5-1 plan
Natalie Glance
Chief Engineering Officer · sold 5,286 at avg $112.38
594K
4.4% of stake
Feb 17No plan
Robert Meese
Chief Business Officer · sold 1,000 at $110.06
110K
0.8% of stake
Nov 19, 202510b5-1 plan
Severin Hacker
Chief Tech Officer, Co-Founder · sold 10,000 at avg $172.75
$1.73M
99% of stake
Nov 17, 2025 – Nov 18, 202510b5-1 plan
Stephen C. Chen
General Counsel · sold 2,796 at avg $176.82
494K
8.1% of stake
Nov 17, 2025 – Nov 18, 202510b5-1 plan
Matthew Skaruppa
Chief Financial Officer · sold 5,858 at avg $176.81
$1.04M
14% of stake
Nov 17, 2025 – Nov 18, 202510b5-1 plan
Natalie Glance
Chief Engineering Officer · sold 5,005 at avg $176.88
885K
4.3% of stake
Nov 17, 2025No plan
Robert Meese
Chief Business Officer · sold 1,444 at $177.95
257K
1.1% of stake
Nov 4, 202510b5-1 plan
Severin Hacker
Chief Tech Officer, Co-Founder · sold 10,000 at avg $263.13
$2.63M
99% of stake
Oct 20, 202510b5-1 plan
Severin Hacker
Chief Tech Officer, Co-Founder · sold 10,000 at avg $314.72
$3.15M
99% of stake
Oct 6, 202510b5-1 plan
Severin Hacker
Chief Tech Officer, Co-Founder · sold 10,000 at avg $321.63
$3.22M
99% of stake
Oct 1, 202510b5-1 plan
Natalie Glance
Chief Engineering Officer · sold 3,283 at avg $312.30
$1.03M
2.7% of stake
Sep 19, 202510b5-1 plan
Severin Hacker
Chief Tech Officer, Co-Founder · sold 10,000 at avg $288.93
$2.89M
99% of stake
Sep 5, 202510b5-1 plan
Severin Hacker
Chief Tech Officer, Co-Founder · sold 10,000 at avg $268.55
$2.69M
99% of stake
Aug 26, 202510b5-1 plan
Stephen C. Chen
General Counsel · sold 1,515 at $321.36
487K
4.4% of stake
Aug 26, 202510b5-1 plan
Matthew Skaruppa
Chief Financial Officer · sold 10,937 at avg $317.39
$3.47M
20% of stake
Aug 19, 202510b5-1 plan
Severin Hacker
Chief Tech Officer, Co-Founder · sold 10,000 at avg $344.56
$3.45M
99% of stake
Aug 18, 202510b5-1 plan
Natalie Glance
Chief Engineering Officer · sold 2,471 at avg $367.10
907K
2.0% of stake
Aug 15, 2025No plan
Stephen C. Chen
General Counsel · sold 1,282 at $329.03
422K
3.6% of stake
Aug 15, 2025No plan
Matthew Skaruppa
Chief Financial Officer · sold 2,797 at $329.03
920K
5.0% of stake
Aug 15, 2025No plan
Natalie Glance
Chief Engineering Officer · sold 2,533 at $329.03
833K
2.0% of stake
Aug 15, 2025No plan
Robert Meese
Chief Business Officer · sold 1,444 at $329.03
475K
1.2% of stake
Aug 5, 202510b5-1 plan
Severin Hacker
Chief Tech Officer, Co-Founder · sold 10,000 at avg $344.41
$3.44M
99% of stake
Jul 21, 202510b5-1 plan
Severin Hacker
Chief Tech Officer, Co-Founder · sold 10,000 at avg $360.33
$3.6M
99% of stake
Jul 7, 202510b5-1 plan
Severin Hacker
Chief Tech Officer, Co-Founder · sold 10,000 at avg $392.89
$3.93M
99% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch DUOL, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Held by ETFs

DUOL is in 99 US ETFs. The largest of them, with DUOL's weight in each:

Spot a number that looks wrong? Check it in DUOL's SEC filings or

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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