Form 4 Tracker
Christoph Glingener

Chief Technology Officer · 3 filings · Latest: Aug 10, 2026

ADTRAN Holdings, Inc.
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
ADTN
Christoph GlingenerChief Technology OfficerMay 8, 2026
Sale
$15.0022,277$334.2K46,645
ADTN
Christoph GlingenerChief Technology OfficerMay 8, 2026
Option Exercise
$12.1722,277$271.1K68,922
ADTN
Christoph GlingenerChief Technology OfficerMay 7, 2026
Sale
$14.95126,115$1.9M46,645
ADTN
Christoph GlingenerChief Technology OfficerMay 7, 2026
Option Exercise
$10.48126,115$1.3M131,540
ADTN
CHRISTOPH GLINGENERMay 7, 2026
Proposed Sale
$15.71148,392$2.3M