Hacker Severin
Chief Tech Officer, Co-Founder
Hacker Severin has filed 14 SEC Form 4 filings (172 transaction rows) across 1 company, with disclosures dating back to 2025. 7 of those filings fall inside the rolling window. Most recent filing: Dec 9, 2025.
Companies traded
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$16.3M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| DUOL | Chief Tech Officer, Co-Founder | Sale | 10,000 | $1.7M | Nov 20 | SEC ↗ | |
| DUOL | Chief Tech Officer, Co-Founder | Sale | 10,000 | $2.6M | Nov 6 | SEC ↗ | |
| DUOL | Chief Tech Officer, Co-Founder | Sale | 10,000 | $3.1M | Oct 22 | SEC ↗ | |
| DUOL | Chief Tech Officer, Co-Founder | Sale | 10,000 | $3.2M | Oct 7 | SEC ↗ | |
| DUOL | Chief Tech Officer, Co-Founder | Sale | 10,000 | $2.9M | Sep 22 | SEC ↗ | |
| DUOL | Chief Tech Officer, Co-Founder | Sale | 10,000 | $2.7M | Sep 9 | SEC ↗ |