Info
Ownership

John Z. Zhang - Insider Trading & Ownership

Location: One Riverfront Plaza, Corning, NY
Summary: The estimated net worth of John Z. Zhang is at least $129K dollars as of August 12, 2025. John Z. Zhang is the Exec. Vice President & CCDO of CORNING INC /NY and owns shares of CORNING INC /NY (GLW) stock worth about $129K.
Signature: Melissa J. Gambol, Power of Attorney
All Insider Reports: All Insider Reports

Ownership of John Z. Zhang

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
GLW	CORNING INC /NY	Exec. Vice President & CCDO	$129K	-$1.92M	-93.7%	Aug 8, 2025

Showing 1 to 1 of 1 entries

Insider Transactions Reported by John Z. Zhang:

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership
GLW	Corning Inc /Ny	Common Stock	Sale	-100%	-$79.4K	65.53	-1.21K	0	8/12/2025	Direct
GLW	Corning Inc /Ny	Common Stock	Tax liability	-51%	-$83.1K	65.77	-1.26K	1.21K	8/8/2025	Direct
GLW	Corning Inc /Ny	Common Stock	Options Exercise		$0	0.00	+2.48K	2.48K	8/8/2025	Direct
GLW	Corning Inc /Ny	Restricted Stock Unit	Options Exercise	-50%	$0	0.00	-2.48K	2.48K	8/8/2025	Direct
GLW	Corning Inc /Ny	Common Stock	Sale	-100%	-$474K	49.29	-9.61K	0	5/28/2025	Direct
GLW	Corning Inc /Ny	Common Stock	Sale	-45.4%	-$375K	46.91	-8K	9.61K	5/12/2025	Direct
GLW	Corning Inc /Ny	Common Stock	Tax liability	-51%	-$767K	41.78	-18.4K	17.6K	4/15/2025	Direct
GLW	Corning Inc /Ny	Common Stock	Options Exercise		$0	0.00	+36K	36K	4/15/2025	Direct
GLW	Corning Inc /Ny	Restricted Stock Unit	Options Exercise	-100%	$0	0.00	-14.4K	0	4/15/2025	Direct
GLW	Corning Inc /Ny	Performance Share Unit	Options Exercise	-100%	$0	0.00	-21.5K	0	4/15/2025	Direct
GLW	Corning Inc /Ny	Restricted Stock Unit	Award		$0	0.00	+24.4K	24.4K	4/1/2025	Direct
GLW	Corning Inc /Ny	Common Stock	Sale	-100%	-$745K	52.78	-14.1K	0	2/18/2025	Direct
GLW	Corning Inc /Ny	Common Stock	Options Exercise	+792%	$425K	33.92	+12.5K	14.1K	2/18/2025	Direct
GLW	Corning Inc /Ny	Stock Options (Right to Buy)	Options Exercise	-100%	$0	0.00	-12.5K	0	2/18/2025	Direct
GLW	Corning Inc /Ny	Common Stock	Tax liability	-36.1%	-$47.4K	53.05	-893	1.58K	2/10/2025	Direct
GLW	Corning Inc /Ny	Common Stock	Options Exercise		$0	0.00	+2.48K	2.48K	2/10/2025	Direct
GLW	Corning Inc /Ny	Restricted Stock Unit	Options Exercise	-33.3%	$0	0.00	-2.48K	4.95K	2/10/2025	Direct
GLW	Corning Inc /Ny	Performance Share Unit	Award		$0	0.00	+52K	21.8K	2/4/2025	Direct
GLW	Corning Inc /Ny	Common Stock	Sale	-100%	-$250K	48.36	-5.18K	0	11/13/2024	Direct
GLW	Corning Inc /Ny	Common Stock	Options Exercise		$102K	19.65	+5.18K	5.18K	11/13/2024	Direct
GLW	Corning Inc /Ny	Stock Options (Right to Buy)	Options Exercise	-100%	$0	0.00	-5.18K	0	11/13/2024	Direct
GLW	Corning Inc /Ny	Common Stock	Sale	-100%	-$513K	39.73	-12.9K	0	8/13/2024	Direct
GLW	Corning Inc /Ny	Common Stock	Tax liability	-11.2%	-$63.1K	38.61	-1.63K	12.9K	8/8/2024	Direct
GLW	Corning Inc /Ny	Common Stock	Options Exercise	+28.2%	$0	0.00	+3.2K	14.6K	8/8/2024	Direct
GLW	Corning Inc /Ny	Restricted Stock Unit	Options Exercise	-100%	$0	0.00^*	-721	0	8/8/2024	Direct
GLW	Corning Inc /Ny	Restricted Stock Unit	Options Exercise	-25%	$0	0.00	-2.48K	7.43K	8/8/2024	Direct
GLW	Corning Inc /Ny	Common Stock	Sale	-52.5%	-$419K	33.42	-12.5K	11.4K	5/2/2024	Direct
GLW	Corning Inc /Ny	Common Stock	Tax liability	-33.1%	-$371K	31.29	-11.8K	23.9K	4/15/2024	Direct
GLW	Corning Inc /Ny	Common Stock	Options Exercise	+184.9%	$0	0.00	+23.2K	35.7K	4/15/2024	Direct
GLW	Corning Inc /Ny	Performance Share Unit	Options Exercise	-100%	$0	0.00^*	-13.7K	0	4/15/2024	Direct
GLW	Corning Inc /Ny	Restricted Stock Unit	Options Exercise	-100%	$0	0.00^*	-9.55K	0	4/15/2024	Direct
GLW	Corning Inc /Ny	Restricted Stock Unit	Award		$0	0.00	+22.5K	22.5K	4/1/2024	Direct
GLW	Corning Inc /Ny	Common Stock	Sale	-34.5%	-$212K	32.02	-6.61K	12.5K	2/15/2024	Direct
GLW	Corning Inc /Ny	Common Stock	Tax liability	-11.4%	-$78.1K	31.73	-2.46K	19.2K	2/8/2024	Direct
GLW	Corning Inc /Ny	Common Stock	Options Exercise	+42%	$0	0.00	+6.39K	21.6K	2/8/2024	Direct
GLW	Corning Inc /Ny	Restricted Stock Unit	Options Exercise	-89.9%	$0	0.00	-6.39K	721	2/8/2024	Direct
GLW	Corning Inc /Ny	Performance Share Unit	Award	+1013.5%	$0	0.00	+12.4K	13.7K	2/7/2024	Direct
GLW	Corning Inc /Ny	Common Stock	Options Exercise	+43.6%	$0	0.00	+5.47K	18K	5/15/2023	Direct
GLW	Corning Inc /Ny	Common Stock	Tax liability	-15.5%	-$87.2K	31.20	-2.8K	15.2K	5/15/2023	Direct
GLW	Corning Inc /Ny	Restricted Stock Unit	Options Exercise	-100%	$0	0.00^*	-5.47K	0	5/15/2023	Direct
GLW	Corning Inc /Ny	Common Stock	Sale	-54.4%	-$472K	31.45	-15K	12.5K	5/5/2023	Direct
GLW	Corning Inc /Ny	Common Stock	Options Exercise		$0	0.00	+55.7K	55.7K	4/14/2023	Direct
GLW	Corning Inc /Ny	Common Stock	Tax liability	-50.6%	-$980K	34.78	-28.2K	27.5K	4/14/2023	Direct
GLW	Corning Inc /Ny	Performance Share Unit	Options Exercise	-100%	$0	0.00^*	-38.5K	0	4/14/2023	Direct
GLW	Corning Inc /Ny	Restricted Stock Unit	Options Exercise	-100%	$0	0.00^*	-17.3K	0	4/14/2023	Direct
GLW	Corning Inc /Ny	Restricted Stock Unit	Award		$0	0.00	+18.9K	18.9K	4/3/2023	Direct
GLW	Corning Inc /Ny	Common Stock	Sale	-100%	-$204K	35.52	-5.74K	0	2/16/2023	Direct
GLW	Corning Inc /Ny	Restricted Stock Unit	Award		$0	0.00	+17K	14.9K	2/8/2023	Direct
GLW	Corning Inc /Ny	Performance Share Unit	Award	+71.9%	$0	0.00	+16.1K	38.5K	2/8/2023	Direct
GLW	Corning Inc /Ny	Common Stock	Sale	-44.8%	-$168K	36.00	-4.66K	5.74K	2/3/2023	Direct

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Showing 1 to 50 of 64 entries

* An asterisk sign (*) next to the price indicates that the price is likely invalid.