Form 4 Tracker
Mario Schlosser

Director; Director, President of Technology & CTO · 9 filings · Latest: Oct 10, 2026

Duolingo, Inc.
Oscar Health, Inc.
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
OSCR
Mario SchlosserDirectorSep 3, 2026
Sale
$31.4531,422$988.2K449,444
OSCR
Schlosser Mario—Sep 3, 2026
Proposed Sale
$31.4531,422$988.2K—
OSCR
Mario SchlosserDirectorAug 28, 2026
Sale
$30.79150,000$4.6M480,866
OSCR
Mario SchlosserDirectorAug 27, 2026
Sale
$30.34600,000$18.2M480,866
OSCR
Schlosser Mario—Aug 28, 2026
Proposed Sale
$30.79150,000$4.6M—
OSCR
Schlosser Mario—Aug 27, 2026
Proposed Sale
$30.34600,000$18.2M—
OSCR
Mario SchlosserDirectorJul 1, 2026
Sale
$31.2447,500$1.5M0
OSCR
Mario SchlosserDirectorJun 23, 2026
Sale
$29.381,027,500$30.2M0
OSCR
Siena Pizzo-Schlosser Dynasty Trust—Jun 23, 2026
Proposed Sale
$28.5450,000$1.4M—
OSCR
Noah Pizzo-Schlosser Dynasty Trust—Jun 23, 2026
Proposed Sale
$28.5450,000$1.4M—
OSCR
MARIO SCHLOSSER—Jun 23, 2026
Proposed Sale
$28.54880,000$25.1M—
OSCR
Pizzo-Schlosser Family Dynasty Trust—Jun 23, 2026
Proposed Sale
$28.5495,000$2.7M—
OSCR
Mario SchlosserDirectorJun 2, 2026
Sale
$21.9434,120$748.6K480,866
OSCR
Mario Schlosser—Jun 2, 2026
Proposed Sale
$22.2337,488$833.4K—
OSCR
Mario SchlosserDirector, President of Technology & CTOMar 2, 2026
Sale
$13.3924,335$325.8K514,986
OSCR
Schlosser Mario—Mar 2, 2026
Proposed Sale
$13.6620,629$281.8K—
OSCR
MARIO SCHLOSSER—Jan 6, 2026
Proposed Sale
$16.57100,000$1.7M—
OSCR
MARIO SCHLOSSER—Jan 2, 2026
Proposed Sale
$14.37216,396$3.1M—
OSCR
MARIO SCHLOSSER—Dec 24, 2025
Proposed Sale
$14.8457,300$850.3K—
OSCR
Schlosser Mario—Dec 2, 2025
Proposed Sale
$16.7322,195$371.3K—

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