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Insider Trading

Last Updated: 2 days, 1 hour ago

John Z Zhang has an estimated net worth of at least $10.8 million*, as of April 22, 2026. They own 42,687 shares of GLW stock. They have sold 90,574 shares of GLW stock since 2021, for an estimated $3.7 million.

John Z Zhang $GLW SEC Form 4 Insider Trading

John Z Zhang has filed a total of 11 insider trades in $GLW since 2021. Their most recent trade was a sale of 1,531 shares, made on Feb 12, 2026. Their largest trade was a sale of 15,000 shares, made on May 05, 2023. We estimate that they now own 42,687 shares of $GLW, worth an estimated $7.1 million.



Insider Trading at $GLW

There have been a total of 114 insider trades reported at $GLW since 2021, with 2,937 shares purchased and 2.4 million shares sold. The most active insider traders in $GLW stock have been Wendell P Weeks, Michael Alan Bell, and Lewis A Steverson. The most recent trade was a sale of 1,531 shares reported by John Z Zhang (Exec. Vice President & CCDO), made on Feb 12, 2026.



History of Insider Stock Trades by John Z Zhang

Company Ticker Purchase / Sale Shares Date Disclosed (EST)
GLW logo GLW Sale 1,531 Feb 12, 2026 Feb. 12, 2026, 6:02 p.m.
GLW logo GLW Sale 1,212 Aug 12, 2025 Aug. 12, 2025, 4:10 p.m.
GLW logo GLW Sale 9,610 May 28, 2025 May 29, 2025, 4:07 p.m.
GLW logo GLW Sale 8,000 May 12, 2025 May 13, 2025, 4:02 p.m.
GLW logo GLW Sale 5,175 Nov 13, 2024 Nov. 14, 2024, 5:03 p.m.
GLW logo GLW Sale 12,918 Aug 13, 2024 Aug. 15, 2024, 4:09 p.m.
GLW logo GLW Sale 12,546 May 02, 2024 May 2, 2024, 4:09 p.m.
GLW logo GLW Sale 6,607 Feb 15, 2024 Feb. 16, 2024, 5:04 p.m.
GLW logo GLW Sale 15,000 May 05, 2023 May 9, 2023, 4:01 p.m.
GLW logo GLW Sale 4,655 Feb 03, 2023 Feb. 6, 2023, 5 p.m.
GLW logo GLW Sale 13,320 Feb 04, 2022 Feb. 3, 2022, 8 p.m.




$GLW Executives and Stock Owners with Insider Trades



*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.