SH
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. Data as of Nov 8 2026.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
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no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
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returns measure stock purchases only
Filings, ttm
1
0 buys · 1 sells
Median delay
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measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
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no filings in the window
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
1 filing
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 →
$14.0M41,252 sh across 8 lots
Exec Dec 12 2024
Filed Dec 13 2024 · 5:30 PM ET DUOLSALE Duolingo, Inc. View filing → $64.1M
188,901 sh across 25 lots
Exec Dec 11 2024
Filed Dec 13 2024 · 5:30 PM ET