Schlosser Mario
SEC Form 4 insider trading activity
Schlosser Mario has filed 12 SEC Form 4 filings (40 transaction rows) across 2 companies, including DUOL, OSCR, with disclosures dating back to 2025. 12 of those filings fall inside the rolling window. Most recent filing: Jul 14, 2026.
Companies traded
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$45.0M
reported sales (SEC code S)
Companies
2
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| OSCR | Director | Sale | 47,500 | $1.5M | Jul 6 | SEC ↗ | |
| OSCR | Director | Sale | 1,027,398 | $30.2M | Jun 25 | SEC ↗ | |
| OSCR | Director | Sale | 34,120 | $749K | Jun 4 | SEC ↗ | |
| OSCR | President of Technology & CTO | Sale | 24,335 | $326K | Mar 4 | SEC ↗ | |
| OSCR | President of Technology & CTO | Sale | 23,038 | $407K | Jan 12 | SEC ↗ | |
| OSCR | President of Technology & CTO | Sale | 76,962 | $1.3M | Jan 8 | SEC ↗ | |
| OSCR | President of Technology & CTO | Sale | 137,933 | $2.1M | Jan 6 | SEC ↗ | |
| OSCR | President of Technology & CTO | Sale | 96,928 | $1.5M | Jan 6 | SEC ↗ | |
| OSCR | President of Technology & CTO | Sale | 38,835 | $583K | Dec 30 | SEC ↗ | |
| OSCR | President of Technology & CTO | Sale | 23,965 | $398K | Dec 4 | SEC ↗ | |
| OSCR | President of Technology & CTO | Sale | 286,182 | $4.4M | Nov 13 | SEC ↗ | |
| OSCR | President of Technology & CTO | Sale | 105,300 | $1.6M | Nov 13 | SEC ↗ |