Severin Hacker

Chief Tech Officer, Co-Founder

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.

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Return, ttmiAverage return per filing, trailing twelve months

–

no purchases on file

Delay-adjustediThe same average, entered at disclosure dates

–

returns measure stock purchases only

Filings, ttm

0 buys · 5 sells

Median delay

–

execution → disclosure

Volume, ttmiDollar value disclosed in the trailing twelve months

$10.1M

shares × price, as filed

Last traded

Nov 19 2025

Filed Nov 20 2025

Median ADV $195.9M across their filed names

Open performance→

Volume by month

Buys $0 Sells $170.4M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on

Technology 4 filings

Sector per market data · by filing · past 12 months

Most traded names

DUOL Duolingo, Inc. DUOL · 0 buys · 26 sells 26 filings

Recent filings

DUOLSALE Duolingo, Inc. View filing → $1.6M
9,285 sh across 6 lots
Exec Nov 19 2025
Filed Nov 20 2025 · 5:30 PM ET DUOLSALE Duolingo, Inc. View filing → $2.6M
9,835 sh across 9 lots
Exec Nov 4 2025
Filed Nov 6 2025 · 5:30 PM ET DUOLSALE Duolingo, Inc. View filing → $2.9M
9,200 sh across 11 lots
Exec Oct 20 2025
Filed Oct 22 2025 · 5:30 PM ET DUOLSALE Duolingo, Inc. View filing → $3.0M
9,391 sh across 8 lots
Exec Oct 6 2025
Filed Oct 7 2025 · 5:30 PM ET DUOLSALE Duolingo, Inc. View filing → $2.9M
10,000 sh across 5 lots
Exec Sep 19 2025
Filed Sep 22 2025 · 5:30 PM ET DUOLSALE Duolingo, Inc. View filing → $2.6M
9,800 sh across 7 lots
Exec Sep 5 2025
Filed Sep 9 2025 · 5:30 PM ET DUOLSALE Duolingo, Inc. View filing → $3.2M
9,200 sh across 12 lots
Exec Aug 19 2025
Filed Aug 21 2025 · 5:30 PM ET DUOLSALE Duolingo, Inc. View filing → $3.2M
9,400 sh across 9 lots
Exec Aug 5 2025
Filed Aug 7 2025 · 5:30 PM ET More filings →