InsiderFlow

John Z Zhang

GLW

John Z Zhang serves as officer: Exec. Vice President & CCDO at Corning Incorporated (GLW). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

5 trades

$2.19M

Net Position

Net Seller

$2.19M

Companies Traded

1

GLW

Active Period

Apr 2025 – Feb 2026

5 total trades

Most Recent

Sell GLW

Feb 12, 2026 · $409.5K

John Z Zhang's Insider Trading at Corning Incorporated (GLW)

Buys

0 · $0.00

Sells

5 · $2.19M

Total Shares Bought

0

Total Shares Sold

41,516

GLW Price Chart
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DateTypeSharesAvg PriceValueShares After
Feb 12, 2026Sell3,062$133.75$409.5K0
Aug 8, 2025Sell2,476$65.65$162.6K0
May 28, 2025Sell9,610$49.29$473.7K0
May 12, 2025Sell8,000$46.91$375.3K0
Apr 15, 2025Sell18,368$41.78$767.4K0
John Z Zhang Insider Trading Activity | Corning Incorporated | InsiderFlow