CORNING INC

Ticker: GLW CUSIP: 219350105 Class: COM

Douglass Winthrop Advisors, LLC's Holding History (CIK: 0001308527)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 25,985 Value ($000) $2,275 Avg Close $85.98 Range $77.39 - $96.64

Q3 2025

Shares 29,985 Value ($000) $2,460 Avg Close $64.97 Range $50.94 - $81.93

Q2 2025

Shares 29,691 Value ($000) $1,561 Avg Close $46.30 Range $36.82 - $52.47

Q1 2025

Shares 29,691 Value ($000) $1,359 Avg Close $48.55 Range $43.53 - $54.30

Q4 2024

Shares 29,691 Value ($000) $1,411 Avg Close $46.35 Range $42.94 - $49.78

Q3 2024

Shares 30,000 Value ($000) $1,355 Avg Close $40.86 Range $36.03 - $44.95

Q2 2024

Shares 30,000 Value ($000) $1,166 Avg Close $33.68 Range $29.54 - $39.21

Q1 2024

Shares 30,000 Value ($000) $989 Avg Close $30.45 Range $28.32 - $32.29

Q4 2023

Shares 30,000 Value ($000) $914 Avg Close $27.12 Range $23.85 - $29.36

Q3 2023

Shares 31,800 Value ($000) $969 Avg Close $30.70 Range $28.22 - $33.67

Q2 2023

Shares 43,800 Value ($000) $1,535 Avg Close $30.60 Range $28.39 - $33.72

Q1 2023

Shares 46,800 Value ($000) $2 Avg Close $32.11 Range $29.39 - $34.14

Q4 2022

Shares 43,450 Value ($000) $1 Avg Close $29.73 Range $26.59 - $31.97

Q3 2022

Shares 42,950 Value ($000) $1,246 Avg Close $30.75 Range $26.45 - $34.17

Q2 2022

Shares 48,450 Value ($000) $1,527 Avg Close $31.05 Range $28.04 - $33.53

Q1 2022

Shares 49,500 Value ($000) $1,827 Avg Close $34.93 Range $30.29 - $38.80

Q4 2021

Shares 49,500 Value ($000) $1,843 Avg Close $33.34 Range $31.26 - $35.25

Q3 2021

Shares 49,500 Value ($000) $1,806 Avg Close $35.29 Range $32.36 - $37.53

Q2 2021

Shares 49,500 Value ($000) $2,025 Avg Close $38.31 Range $33.97 - $41.06

Q1 2021

Shares 49,500 Value ($000) $2,154 Avg Close $33.60 Range $30.34 - $38.69

Q4 2020

Shares 48,200 Value ($000) $1,735 Avg Close $30.87 Range $27.10 - $33.50

Q3 2020

Shares 48,000 Value ($000) $1,556 Avg Close $26.66 Range $22.06 - $29.33

Q2 2020

Shares 48,000 Value ($000) $1,243 Avg Close $19.40 Range $15.19 - $24.47

Q1 2020

Shares 28,685 Value ($000) $589 Avg Close $22.10 Range $14.86 - $25.72

Q4 2019

Shares 31,750 Value ($000) $924 Avg Close $24.43 Range $22.45 - $26.10

Q3 2019

Shares 32,350 Value ($000) $923 Avg Close $24.98 Range $22.31 - $28.54

Q2 2019

Shares 32,350 Value ($000) $1,075 Avg Close $26.62 Range $23.82 - $29.24

Q1 2019

Shares 33,164 Value ($000) $1,098 Avg Close $27.05 Range $23.03 - $29.16

Q4 2018

Shares 123,068 Value ($000) $3,718 Avg Close $26.17 Range $22.76 - $29.38

Q3 2018

Shares 126,733 Value ($000) $4,474 Avg Close $26.48 Range $22.14 - $29.90

Q2 2018

Shares 180,724 Value ($000) $4,972 Avg Close $22.38 Range $21.10 - $23.67

Q1 2018

Shares 158,114 Value ($000) $4,408 Avg Close $24.81 Range $21.97 - $28.19

Q4 2017

Shares 55,590 Value ($000) $1,778 Avg Close $25.23 Range $23.59 - $26.36

Q3 2017

Shares 55,590 Value ($000) $1,663 Avg Close $23.59 Range $22.03 - $25.57

Q2 2017

Shares 55,523 Value ($000) $1,668 Avg Close $22.77 Range $20.81 - $24.32

Q1 2017

Shares 56,023 Value ($000) $1,513 Avg Close $20.97 Range $18.97 - $22.43

Q4 2016

Shares 56,023 Value ($000) $1,360 Avg Close $18.64 Range $17.38 - $19.93

Q3 2016

Shares 56,023 Value ($000) $1,325 Avg Close $17.37 Range $15.37 - $18.61

Q2 2016

Shares 53,673 Value ($000) $1,099 Avg Close $15.51 Range $14.06 - $16.55

Q1 2016

Shares 53,673 Value ($000) $1,121 Avg Close $14.25 Range $12.36 - $16.26

Q4 2015

Shares 53,673 Value ($000) $981 Avg Close $13.86 Range $12.46 - $14.78

Q3 2015

Shares 51,900 Value ($000) $889 Avg Close $13.63 Range $11.66 - $15.13

Q2 2015

Shares 35,100 Value ($000) $796 Avg Close $16.12 Range $14.79 - $17.27

Q1 2015

Shares 35,100 Value ($000) $796 Avg Close $17.82 Range $16.37 - $18.82

Q4 2014

Shares 9,998 Value ($000) $229 Avg Close $15.20 Range $12.68 - $17.59

Q2 2014

Shares 9,600 Value ($000) $211 Avg Close $15.67 Range $14.87 - $16.45

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	25,985	$2,275	$85.98	$77.39 - $96.64
Q3 2025	29,985	$2,460	$64.97	$50.94 - $81.93
Q2 2025	29,691	$1,561	$46.30	$36.82 - $52.47
Q1 2025	29,691	$1,359	$48.55	$43.53 - $54.30
Q4 2024	29,691	$1,411	$46.35	$42.94 - $49.78
Q3 2024	30,000	$1,355	$40.86	$36.03 - $44.95
Q2 2024	30,000	$1,166	$33.68	$29.54 - $39.21
Q1 2024	30,000	$989	$30.45	$28.32 - $32.29
Q4 2023	30,000	$914	$27.12	$23.85 - $29.36
Q3 2023	31,800	$969	$30.70	$28.22 - $33.67
Q2 2023	43,800	$1,535	$30.60	$28.39 - $33.72
Q1 2023	46,800	$2	$32.11	$29.39 - $34.14
Q4 2022	43,450	$1	$29.73	$26.59 - $31.97
Q3 2022	42,950	$1,246	$30.75	$26.45 - $34.17
Q2 2022	48,450	$1,527	$31.05	$28.04 - $33.53
Q1 2022	49,500	$1,827	$34.93	$30.29 - $38.80
Q4 2021	49,500	$1,843	$33.34	$31.26 - $35.25
Q3 2021	49,500	$1,806	$35.29	$32.36 - $37.53
Q2 2021	49,500	$2,025	$38.31	$33.97 - $41.06
Q1 2021	49,500	$2,154	$33.60	$30.34 - $38.69
Q4 2020	48,200	$1,735	$30.87	$27.10 - $33.50
Q3 2020	48,000	$1,556	$26.66	$22.06 - $29.33
Q2 2020	48,000	$1,243	$19.40	$15.19 - $24.47
Q1 2020	28,685	$589	$22.10	$14.86 - $25.72
Q4 2019	31,750	$924	$24.43	$22.45 - $26.10
Q3 2019	32,350	$923	$24.98	$22.31 - $28.54
Q2 2019	32,350	$1,075	$26.62	$23.82 - $29.24
Q1 2019	33,164	$1,098	$27.05	$23.03 - $29.16
Q4 2018	123,068	$3,718	$26.17	$22.76 - $29.38
Q3 2018	126,733	$4,474	$26.48	$22.14 - $29.90
Q2 2018	180,724	$4,972	$22.38	$21.10 - $23.67
Q1 2018	158,114	$4,408	$24.81	$21.97 - $28.19
Q4 2017	55,590	$1,778	$25.23	$23.59 - $26.36
Q3 2017	55,590	$1,663	$23.59	$22.03 - $25.57
Q2 2017	55,523	$1,668	$22.77	$20.81 - $24.32
Q1 2017	56,023	$1,513	$20.97	$18.97 - $22.43
Q4 2016	56,023	$1,360	$18.64	$17.38 - $19.93
Q3 2016	56,023	$1,325	$17.37	$15.37 - $18.61
Q2 2016	53,673	$1,099	$15.51	$14.06 - $16.55
Q1 2016	53,673	$1,121	$14.25	$12.36 - $16.26
Q4 2015	53,673	$981	$13.86	$12.46 - $14.78
Q3 2015	51,900	$889	$13.63	$11.66 - $15.13
Q2 2015	35,100	$796	$16.12	$14.79 - $17.27
Q1 2015	35,100	$796	$17.82	$16.37 - $18.82
Q4 2014	9,998	$229	$15.20	$12.68 - $17.59
Q2 2014	9,600	$211	$15.67	$14.87 - $16.45