Insider filing · DUOL
Severin Hacker sold $2.8M of Duolingo (DUOL)
Executed Mar 19 2025, disclosed Mar 21 2025, 2 days later.
Value, as filed
$2.8M
9,338 sh across 11 lots
Executed
Mar 19 2025
the trade date, as filed
Disclosed
Mar 21 2025
2 days after the trade
Return, 21 sessionsiFrom the disclosed entry session; derived
–
purchases only
Returns are measured on stock purchases only.
The filer
SH
Severin Hacker
Chief Tech Officer, Co-Founder
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Severin Hacker (Chief Tech Officer, Co-Founder) filed 5 Form 4 reports in the trailing twelve months (0 purchases, 5 sales), most often in Duolingo, Inc. (DUOL). The largest single filing was $3.0M of DUOL (9,391 sh across 8 lots, as filed), executed Oct 6 2025.
The name
DUOL
Duolingo, Inc.
DUOL · Technology · 96 filings in 24 months
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Technology · Duolingo, Inc. operates as a mobile learning platform in the United States, the United Kingdom, and internationally
More Technology filings→ Insider filings, newest first→ View the original filing at www.sec.gov→Other filings by Severin Hacker in DUOL
DUOLSALE
Duolingo, Inc.
$1.6M9,285 sh across 6 lots
Exec Nov 19 2025
Filed Nov 20 2025 · 5:30 PM ET DUOLSALE Duolingo, Inc. $2.6M
9,835 sh across 9 lots
Exec Nov 4 2025
Filed Nov 6 2025 · 5:30 PM ET DUOLSALE Duolingo, Inc. $2.9M
9,200 sh across 11 lots
Exec Oct 20 2025
Filed Oct 22 2025 · 5:30 PM ET DUOLSALE Duolingo, Inc. $3.0M
9,391 sh across 8 lots
Exec Oct 6 2025
Filed Oct 7 2025 · 5:30 PM ET DUOLSALE Duolingo, Inc. $2.9M
10,000 sh across 5 lots
Exec Sep 19 2025
Filed Sep 22 2025 · 5:30 PM ET DUOLSALE Duolingo, Inc. $2.6M
9,800 sh across 7 lots
Exec Sep 5 2025
Filed Sep 9 2025 · 5:30 PM ET DUOLSALE Duolingo, Inc. $3.2M
9,200 sh across 12 lots
Exec Aug 19 2025
Filed Aug 21 2025 · 5:30 PM ET DUOLSALE Duolingo, Inc. $3.2M
9,400 sh across 9 lots
Exec Aug 5 2025
Filed Aug 7 2025 · 5:30 PM ET