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$GLW

$190.60 -$10.16 (5.06%)

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$GLW Overview Financials SEC Filings Executives News

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Valuations P Insider Transactions P Congressional Trades P

Insider Transactions

Insider Transaction Summary

WENDELL P WEEKS

969,501 shares

Net: +58,651 B/S: 2.48

Lawrence D McRae

236,442 shares

Net: 0 B/S: -

ROBERT F JR CUMMINGS

130,601 shares

Net: +3,815 B/S: ∞

Jaymin Amin

103,115 shares

Net: -19,266 B/S: 2.29

Avery H III Nelson

100,961 shares

Net: +6,432 B/S: 1.91

HANSEL E II TOOKES

92,761 shares

Net: 0 B/S: -

James P Clappin

85,064 shares

Net: 0 B/S: -

LEWIS A STEVERSON

74,579 shares

Net: -4,807 B/S: 1.92

Edward A Schlesinger

74,560 shares

Net: -22,220 B/S: 1.23

Ronald L Verkleeren

66,654 shares

Net: -21,156 B/S: 1.26

MARK S WRIGHTON

61,621 shares

Net: -4,467 B/S: -

Clark S Kinlin

59,945 shares

Net: 0 B/S: -

Daniel P Huttenlocher

52,853 shares

Net: +1,806 B/S: ∞

Soumya Seetharam

49,458 shares

Net: +19,337 B/S: 3.92

DEBORAH RIEMAN

48,035 shares

Net: 0 B/S: -

KURT M LANDGRAF

46,528 shares

Net: 0 B/S: -

Michelle L Gullo

45,356 shares

Net: +8,666 B/S: 24.06

LESLIE A BRUN

44,218 shares

Net: +1,806 B/S: ∞

RICHARD T CLARK

43,226 shares

Net: 0 B/S: -

John Z Zhang

42,687 shares

Net: +37,837 B/S: 27.06

DEBORAH A HENRETTA

39,774 shares

Net: +153 B/S: ∞

Michael Paul O'Day

39,122 shares

Net: -977 B/S: 1.72

Robert P. France

37,048 shares

Net: 0 B/S: -

Cheryl C Capps

31,493 shares

Net: 0 B/S: -

Stefan Becker

28,937 shares

Net: +10,496 B/S: 4.14

Pamela J. Craig

26,703 shares

Net: +1,806 B/S: ∞

STEPHANIE BURNS

26,608 shares

Net: +3,748 B/S: ∞

Kevin J Martin

20,097 shares

Net: +3,501 B/S: ∞

DONALD W BLAIR

17,337 shares

Net: 0 B/S: -

Thomas D French

17,047 shares

Net: +1,806 B/S: ∞

Roger W. Jr. Ferguson

16,561 shares

Net: +3,815 B/S: ∞

Jordana Daryl Kammerud

15,617 shares

Net: -54,706 B/S: 0.54

David L Morse

13,912 shares

Net: 0 B/S: -

R Tony Tripeny

13,215 shares

Net: 0 B/S: -

Eric S Musser

4,926 shares

Net: -183,758 B/S: 0.18

MICHAUNE D TILLMAN

3,477 shares

Net: +10,325 B/S: ∞

Ami Badani

2,481 shares

Net: +2,481 B/S: ∞

Anne Mullins

1,931 shares

Net: 0 B/S: -

Li Fang

0 shares

Net: -6,656 B/S: 0.72

Michael Alan Bell

0 shares

Net: 0 B/S: -

Jeffrey W Evenson

0 shares

Net: 0 B/S: -

Martin J Curran

0 shares

Net: 0 B/S: -

John P JR Bayne

0 shares

Net: 0 B/S: -

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
WENDELL P WEEKS	969,501	+58,651	2.48
Lawrence D McRae	236,442	0	-
ROBERT F JR CUMMINGS	130,601	+3,815	∞
Jaymin Amin	103,115	-19,266	2.29
Avery H III Nelson	100,961	+6,432	1.91
HANSEL E II TOOKES	92,761	0	-
James P Clappin	85,064	0	-
LEWIS A STEVERSON	74,579	-4,807	1.92
Edward A Schlesinger	74,560	-22,220	1.23
Ronald L Verkleeren	66,654	-21,156	1.26
MARK S WRIGHTON	61,621	-4,467	-
Clark S Kinlin	59,945	0	-
Daniel P Huttenlocher	52,853	+1,806	∞
Soumya Seetharam	49,458	+19,337	3.92
DEBORAH RIEMAN	48,035	0	-
KURT M LANDGRAF	46,528	0	-
Michelle L Gullo	45,356	+8,666	24.06
LESLIE A BRUN	44,218	+1,806	∞
RICHARD T CLARK	43,226	0	-
John Z Zhang	42,687	+37,837	27.06
DEBORAH A HENRETTA	39,774	+153	∞
Michael Paul O'Day	39,122	-977	1.72
Robert P. France	37,048	0	-
Cheryl C Capps	31,493	0	-
Stefan Becker	28,937	+10,496	4.14
Pamela J. Craig	26,703	+1,806	∞
STEPHANIE BURNS	26,608	+3,748	∞
Kevin J Martin	20,097	+3,501	∞
DONALD W BLAIR	17,337	0	-
Thomas D French	17,047	+1,806	∞
Roger W. Jr. Ferguson	16,561	+3,815	∞
Jordana Daryl Kammerud	15,617	-54,706	0.54
David L Morse	13,912	0	-
R Tony Tripeny	13,215	0	-
Eric S Musser	4,926	-183,758	0.18
MICHAUNE D TILLMAN	3,477	+10,325	∞
Ami Badani	2,481	+2,481	∞
Anne Mullins	1,931	0	-
Li Fang	0	-6,656	0.72
Michael Alan Bell	0	0	-
Jeffrey W Evenson	0	0	-
Martin J Curran	0	0	-
John P JR Bayne	0	0	-

Individual Transactions

April 29, 2026

Stefan Becker

Option Exercise/Conversion

Change: +674

Price: $0.00

Shares: 28,937

Value: +$0

Stefan Becker

Tax Payment

Change: -2,795

Price: $151.90

Shares: 28,263

Value: -$424,560

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Stefan Becker	May 01	Option Exercise/Conversion (M) Compensation/Award	28,937	+674	$0.00	+$0
Stefan Becker	May 01	Tax Payment (F) Tax Payment	28,263	-2,795	$151.90	-$424,560

April 28, 2026

Michael Paul O'Day

Tax Payment

Change: -3,496

Price: $153.05

Shares: 39,122

Value: -$535,062

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Michael Paul O'Day	Apr 29	Tax Payment (F) Tax Payment	39,122	-3,496	$153.05	-$535,062

April 15, 2026

Michelle L Gullo

Option Exercise/Conversion

Change: +9,356

Price: $0.00

Shares: 45,356

Value: +$0

Michelle L Gullo

Tax Payment

Change: -6,198

Price: $168.27

Shares: 42,951

Value: -$1,042,937

Michael Paul O'Day

Option Exercise/Conversion

Change: +14,092

Price: $0.00

Shares: 44,784

Value: +$0

Michael Paul O'Day

Tax Payment

Change: -8,410

Price: $168.27

Shares: 42,618

Value: -$1,415,150

Soumya Seetharam

Option Exercise/Conversion

Change: +31,046

Price: $0.00

Shares: 49,458

Value: +$0

Soumya Seetharam

Tax Payment

Change: -17,622

Price: $168.27

Shares: 45,570

Value: -$2,965,253

Jaymin Amin

Option Exercise/Conversion

Change: +15,355

Price: $0.00

Shares: 103,115

Value: +$0

Jaymin Amin

Tax Payment

Change: -24,796

Price: $168.27

Shares: 113,878

Value: -$4,172,422

Stefan Becker

Option Exercise/Conversion

Change: +31,046

Price: $0.00

Shares: 37,390

Value: +$0

Stefan Becker

Tax Payment

Change: -22,861

Price: $168.27

Shares: 28,263

Value: -$3,846,820

John Z Zhang

Option Exercise/Conversion

Change: +42,687

Price: $0.00

Shares: 42,687

Value: +$0

John Z Zhang

Tax Payment

Change: -31,433

Price: $168.27

Shares: 30,138

Value: -$5,289,230

Ronald L Verkleeren

Option Exercise/Conversion

Change: +32,571

Price: $0.00

Shares: 66,654

Value: +$0

Ronald L Verkleeren

Tax Payment

Change: -22,843

Price: $168.27

Shares: 58,143

Value: -$3,843,791

Avery H III Nelson

Option Exercise/Conversion

Change: +41,173

Price: $0.00

Shares: 100,961

Value: +$0

Avery H III Nelson

Tax Payment

Change: -28,740

Price: $168.27

Shares: 90,059

Value: -$4,836,079

Jordana Daryl Kammerud

Option Exercise/Conversion

Change: +12,845

Price: $0.00

Shares: 15,617

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Michelle L Gullo	Apr 16	Option Exercise/Conversion (M) Compensation/Award	45,356	+9,356	$0.00	+$0
Michelle L Gullo	Apr 16	Tax Payment (F) Tax Payment	42,951	-6,198	$168.27	-$1,042,937
Michael Paul O'Day	Apr 16	Option Exercise/Conversion (M) Compensation/Award	44,784	+14,092	$0.00	+$0
Michael Paul O'Day	Apr 16	Tax Payment (F) Tax Payment	42,618	-8,410	$168.27	-$1,415,150
Soumya Seetharam	Apr 16	Option Exercise/Conversion (M) Compensation/Award	49,458	+31,046	$0.00	+$0
Soumya Seetharam	Apr 16	Tax Payment (F) Tax Payment	45,570	-17,622	$168.27	-$2,965,253
Jaymin Amin	Apr 16	Option Exercise/Conversion (M) Compensation/Award	103,115	+15,355	$0.00	+$0
Jaymin Amin	Apr 16	Tax Payment (F) Tax Payment	113,878	-24,796	$168.27	-$4,172,422
Stefan Becker	Apr 16	Option Exercise/Conversion (M) Compensation/Award	37,390	+31,046	$0.00	+$0
Stefan Becker	Apr 16	Tax Payment (F) Tax Payment	28,263	-22,861	$168.27	-$3,846,820
John Z Zhang	Apr 16	Option Exercise/Conversion (M) Compensation/Award	42,687	+42,687	$0.00	+$0
John Z Zhang	Apr 16	Tax Payment (F) Tax Payment	30,138	-31,433	$168.27	-$5,289,230
Ronald L Verkleeren	Apr 16	Option Exercise/Conversion (M) Compensation/Award	66,654	+32,571	$0.00	+$0
Ronald L Verkleeren	Apr 16	Tax Payment (F) Tax Payment	58,143	-22,843	$168.27	-$3,843,791
Avery H III Nelson	Apr 16	Option Exercise/Conversion (M) Compensation/Award	100,961	+41,173	$0.00	+$0
Avery H III Nelson	Apr 16	Tax Payment (F) Tax Payment	90,059	-28,740	$168.27	-$4,836,079
Jordana Daryl Kammerud	Apr 16	Option Exercise/Conversion (M) Compensation/Award	15,617	+12,845	$0.00	+$0