Form 4 Tracker
John Z Zhang

Exec. Vice President & CCDO · 7 filings · Latest: May 11, 2026

CORNING INC /NY
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
GLW
John Z ZhangExec. Vice President & CCDOMay 11, 2026
Sale
$198.3410,000$2.0M5,138
GLW
John ZhangMay 11, 2026
Proposed Sale
$198.3410,000$2.0M
GLW
John ZhangMay 6, 2026
Proposed Sale
$184.7315,000$2.8M
GLW
John Z ZhangExec. Vice President & CCDOMay 6, 2026
Sale
$184.6715,000$2.8M15,138
GLW
John Z ZhangExec. Vice President & CCDOApr 15, 2026
Option Exercise
$0.0061,57161,571
GLW
John Z ZhangExec. Vice President & CCDOFeb 12, 2026
Sale
$133.751,531$204.8K0
GLW
John ZhangFeb 12, 2026
Proposed Sale
$133.731,531$204.7K
GLW
John Z ZhangExec. Vice President & CCDOFeb 9, 2026
Option Exercise
$0.002,4762,476
GLW
John ZhangAug 12, 2025
Proposed Sale
$65.531,212$79.4K
GLW
John ZhangMay 28, 2025
Proposed Sale
$49.299,610$473.7K
GLW
John ZhangMay 12, 2025
Proposed Sale
$46.918,000$375.3K
GLW
John ZhangFeb 18, 2025
Proposed Sale
$52.7814,111$744.7K
GLW
John ZhangNov 13, 2024
Proposed Sale
$48.355,175$250.2K