GLW

Corning Incorporated

$114.08−5.42 (−4.54%)Close Nov 13, 2026

Backtest GLW

Insider trading

12 months to Oct 1, 2026

Sold: $112M; 15 insiders
Largest seller: $40.0M; Wendell P. Weeks · 36% of sales
Bought: $0; No buys
Latest buy: Jan 3, 2022; Stephanie Burns

Buys and sales on the price

Since 2003

By period

Open-market trades

Trades	3 months	12 months	Since 2003
Buys	0	0	30
Sales	2	34	727
Plan sales	0	0	26
Shares bought	00	00	1,267,1651.27M
Shares sold	22,97423.0K	767,821768K	72,123,10672.1M
Net shares	−22,974−23.0K	−767,821−768K	−70,855,941−70.9M
Net value	−$3.49M	−$112M	−$2.48B

Insiders

Insider	12 months	Shares held
Wendell P. Weeks Chairman, CEO and President, Director	−29.7%	936,452
Robert F. Cummings Jr Director	—	152,119
Jaymin Amin SVP and Chief Tech. Officer	−30.0%	97,002
Avery H. Nelson III Executive Vice President & COO	−39.9%	73,907
Edward A. Schlesinger Exec. Vice President and CFO	−81.7%	65,264

Trades

757 trades since 2003

	Type	Insider	Role	Shares	Price			Held after
Sep 4, 2026	Sale	Michelle L. GulloSenior Vice President & CHRO Senior Vice President & CHRO	Senior Vice President & CHRO	9,874 at $152.29	$152.29	$1.50M	−51.3% 9.38K after	9,384
Aug 28, 2026	Sale	Lewis A. SteversonVice Chairman, EVP and CLAO Vice Chairman, EVP and CLAO	Vice Chairman, EVP and CLAO	13,100 at $151.29	$151.29	$1.98M	−46.5% 15.1K after	15,052
Jun 9, 2026	Sale	Wendell P. WeeksChairman, CEO and President, Director Chairman, CEO and President, Director	Chairman, CEO and President, Director	100,000 at $186.46	$186.46	$18.6M	−9.6% 936K after	936,452
May 22, 2026	Sale	Jaymin AminSVP and Chief Tech. Officer SVP and Chief Tech. Officer	SVP and Chief Tech. Officer	27,395 at $192.14	$192.14	$5.26M	−22.0% 97.0K after	97,002
May 15, 2026	Sale	Avery H. Nelson IIIExecutive Vice President & COO Executive Vice President & COO	Executive Vice President & COO	20,000 at $195.93	$195.93	$3.92M	−21.3% 73.9K after	73,907
May 13, 2026	Sale	Ronald L. VerkleerenSVP Emerging Innovations Group SVP Emerging Innovations Group	SVP Emerging Innovations Group	10,000 at $207.77	$207.77	$2.08M	−17.2% 48.1K after	48,143
May 11, 2026	Sale	Michaune D. TillmanSVP and General Counsel SVP and General Counsel	SVP and General Counsel	3,260 at $207.02	$207.02	$675K	−24.3% 10.2K after	10,174
May 11, 2026	Sale	Soumya SeetharamSenior Vice President & CDIO Senior Vice President & CDIO	Senior Vice President & CDIO	20,000 at $206.23	$206.23	$4.12M	−43.9% 25.6K after	25,570
May 11, 2026	Sale	John Z. ZhangExec. Vice President & CCDO Exec. Vice President & CCDO	Exec. Vice President & CCDO	10,000 at $198.34	$198.34	$1.98M	−66.1% 5.14K after	5,138
May 8, 2026	Sale	Lewis A. SteversonVice Chairman, EVP and CLAO Vice Chairman, EVP and CLAO	Vice Chairman, EVP and CLAO	27,750 at $196.06	$196.06	$5.44M	−49.6% 28.2K after	28,152

Michelle L. Gullo$1.50M
Sep 4, 2026 · Sale9,874 at $152.29
Senior Vice President & CHRO−51.3% of holdings, 9.38K after
Lewis A. Steverson$1.98M
Aug 28, 2026 · Sale13,100 at $151.29
Vice Chairman, EVP and CLAO−46.5% of holdings, 15.1K after
Wendell P. Weeks$18.6M
Jun 9, 2026 · Sale100,000 at $186.46
Chairman, CEO and President, Director−9.6% of holdings, 936K after
Jaymin Amin$5.26M
May 22, 2026 · Sale27,395 at $192.14
SVP and Chief Tech. Officer−22.0% of holdings, 97.0K after
Avery H. Nelson III$3.92M
May 15, 2026 · Sale20,000 at $195.93
Executive Vice President & COO−21.3% of holdings, 73.9K after
Ronald L. Verkleeren$2.08M
May 13, 2026 · Sale10,000 at $207.77
SVP Emerging Innovations Group−17.2% of holdings, 48.1K after
Michaune D. Tillman$675K
May 11, 2026 · Sale3,260 at $207.02
SVP and General Counsel−24.3% of holdings, 10.2K after
Soumya Seetharam$4.12M
May 11, 2026 · Sale20,000 at $206.23
Senior Vice President & CDIO−43.9% of holdings, 25.6K after
John Z. Zhang$1.98M
May 11, 2026 · Sale10,000 at $198.34
Exec. Vice President & CCDO−66.1% of holdings, 5.14K after
Lewis A. Steverson$5.44M
May 8, 2026 · Sale27,750 at $196.06
Vice Chairman, EVP and CLAO−49.6% of holdings, 28.2K after