Severin Hacker sold $4.3M of Duolingo (DUOL)

Executed Feb 19 2025, disclosed Feb 21 2025, 2 days later.

Value, as filed

$4.3M

10,000 sh across 9 lots

Executed

Feb 19 2025

the trade date, as filed

Disclosed

Feb 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 profile →

Severin Hacker (Chief Tech Officer, Co-Founder) filed 1 Form 4 report in the trailing twelve months (0 purchases, 1 sale), most often in Duolingo, Inc. (DUOL). The largest single filing was $1.6M of DUOL (9,285 sh across 6 lots, as filed), executed Nov 19 2025.

The name

DUOL Duolingo, Inc. DUOL · Technology · 96 filings in 24 months ticker →

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. $1.6M
9,285 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