SEC Form 4 reporting owner

Chen Stephen C.

Chen Stephen C. has filed 15 Form 4 transactions reported between December 29, 2025 and September 14, 2026, as General Counsel of Duolingo, Inc..

Name as filed: Chen Stephen C.

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$2.0M

11 lines

Companies

with Form 4 filings

Latest transaction

Sep 14, 2026

transaction date

Roles and reported holdings

DUOLDuolingo, Inc.
Dec 29, 2025 – Sep 14, 2026
General Counsel
Held directly43,769 sh as of Sep 14, 2026 · Form 4
24 months: $2.0M sold

Transaction history

All 15 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Sep 14, 2026	DUOLGeneral Counsel	Open-market saleCode S · direct	5,965	$150.00	$895K@ $150.00	43,769	Form 4
Sep 14, 2026	DUOLGeneral Counsel	Open-market saleCode S · direct	2,107	$147.43	$311K@ $147.43	49,734	Form 4
Aug 17, 2026	DUOLGeneral Counsel	Open-market saleCode S · direct	1,024	$129.13	$132K@ $129.13	51,841	Form 4
Jun 17, 2026	DUOLGeneral Counsel	Option exerciseCode M · direct	58	$14.42	$836@ $14.42	52,865	Form 4
May 18, 2026	DUOLGeneral Counsel	Open-market saleCode S · direct	700	$114.22	$80K@ $114.22	52,807	Form 4
May 18, 2026	DUOLGeneral Counsel	Open-market saleCode S · direct	1,277	$113.27	$145K@ $113.27	53,507	Form 4
May 15, 2026	DUOLGeneral Counsel	Open-market saleCode S · direct	820	$112.16	$92K@ $112.16	54,784	Form 4
May 15, 2026	DUOLGeneral Counsel	Grant or awardCode A · direct	24,411	$112.06	$2.7M@ $112.06	55,604	Form 4
May 12, 2026	DUOLGeneral Counsel	Option exerciseCode M · direct	648	$14.42	$9K@ $14.42	31,193	Form 4
Feb 18, 2026	DUOLGeneral Counsel	Open-market saleCode S · direct	80	$115.47	$9K@ $115.47	30,545	Form 4
Feb 18, 2026	DUOLGeneral Counsel	Open-market saleCode S · direct	520	$114.55	$60K@ $114.55	30,625	Form 4
Feb 18, 2026	DUOLGeneral Counsel	Open-market saleCode S · direct	480	$113.95	$55K@ $113.95	31,145	Form 4
Feb 18, 2026	DUOLGeneral Counsel	Open-market saleCode S · direct	821	$111.83	$92K@ $111.83	31,625	Form 4
Feb 17, 2026	DUOLGeneral Counsel	Open-market saleCode S · direct	896	$110.06	$99K@ $110.06	32,446	Form 4
Dec 29, 2025	DUOLGeneral Counsel	Option exerciseCode M · direct	1,800	$14.42	$26K@ $14.42	33,342	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.