CORNING INC

Ticker: GLW CUSIP: 219350105 Class: COM

GRANDFIELD & DODD, LLC's Holding History (CIK: 0001308016)

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

Q4 2025

Shares 69,554 Value ($000) $6,090 Avg Close $85.98 Range $77.39 - $96.64

Q3 2025

Shares 83,474 Value ($000) $6,847 Avg Close $64.97 Range $50.94 - $81.93

Q2 2025

Shares 119,765 Value ($000) $6,298 Avg Close $46.30 Range $36.82 - $52.47

Q1 2025

Shares 168,144 Value ($000) $7,698 Avg Close $48.55 Range $43.53 - $54.30

Q4 2024

Shares 283,117 Value ($000) $13,454 Avg Close $46.35 Range $42.94 - $49.78

Q3 2024

Shares 340,449 Value ($000) $15,371 Avg Close $40.86 Range $36.03 - $44.95

Q2 2024

Shares 350,623 Value ($000) $13,622 Avg Close $33.68 Range $29.54 - $39.21

Q1 2024

Shares 368,591 Value ($000) $12,149 Avg Close $30.45 Range $28.32 - $32.29

Q4 2023

Shares 373,600 Value ($000) $11,376 Avg Close $27.12 Range $23.85 - $29.36

Q3 2023

Shares 367,132 Value ($000) $11,187 Avg Close $30.70 Range $28.22 - $33.67

Q2 2023

Shares 364,450 Value ($000) $12,770 Avg Close $30.60 Range $28.39 - $33.72

Q1 2023

Shares 364,790 Value ($000) $12,870 Avg Close $32.11 Range $29.39 - $34.14

Q4 2022

Shares 363,718 Value ($000) $11,617 Avg Close $29.73 Range $26.59 - $31.97

Q3 2022

Shares 364,503 Value ($000) $10,580 Avg Close $30.75 Range $26.45 - $34.17

Q2 2022

Shares 362,386 Value ($000) $11,420 Avg Close $31.05 Range $28.04 - $33.53

Q1 2022

Shares 360,804 Value ($000) $13,320 Avg Close $34.93 Range $30.29 - $38.80

Q4 2021

Shares 361,369 Value ($000) $13,450 Avg Close $33.34 Range $31.26 - $35.25

Q3 2021

Shares 348,483 Value ($000) $12,720 Avg Close $35.29 Range $32.36 - $37.53

Q2 2021

Shares 340,161 Value ($000) $13,910 Avg Close $38.31 Range $33.97 - $41.06

Q1 2021

Shares 337,437 Value ($000) $14,680 Avg Close $33.60 Range $30.34 - $38.69

Q4 2020

Shares 340,617 Value ($000) $12,260 Avg Close $30.87 Range $27.10 - $33.50

Q3 2020

Shares 342,357 Value ($000) $11,100 Avg Close $26.66 Range $22.06 - $29.33

Q2 2020

Shares 339,536 Value ($000) $8,790 Avg Close $19.40 Range $15.19 - $24.47

Q1 2020

Shares 338,658 Value ($000) $6,956 Avg Close $22.10 Range $14.86 - $25.72

Q4 2019

Shares 341,490 Value ($000) $9,941 Avg Close $24.43 Range $22.45 - $26.10

Q3 2019

Shares 332,222 Value ($000) $9,475 Avg Close $24.98 Range $22.31 - $28.54

Q2 2019

Shares 327,685 Value ($000) $10,889 Avg Close $26.62 Range $23.82 - $29.24

Q1 2019

Shares 327,630 Value ($000) $10,845 Avg Close $27.05 Range $23.03 - $29.16

Q4 2018

Shares 327,255 Value ($000) $9,886 Avg Close $26.17 Range $22.76 - $29.38

Q3 2018

Shares 332,481 Value ($000) $11,737 Avg Close $26.48 Range $22.14 - $29.90

Q2 2018

Shares 338,191 Value ($000) $9,304 Avg Close $22.38 Range $21.10 - $23.67

Q1 2018

Shares 337,891 Value ($000) $9,420 Avg Close $24.81 Range $21.97 - $28.19

Q4 2017

Shares 345,616 Value ($000) $11,056 Avg Close $25.23 Range $23.59 - $26.36

Q3 2017

Shares 349,252 Value ($000) $10,450 Avg Close $23.59 Range $22.03 - $25.57

Q2 2017

Shares 355,217 Value ($000) $10,674 Avg Close $22.77 Range $20.81 - $24.32

Q1 2017

Shares 362,987 Value ($000) $9,801 Avg Close $20.97 Range $18.97 - $22.43

Q4 2016

Shares 361,424 Value ($000) $8,772 Avg Close $18.64 Range $17.38 - $19.93

Q3 2016

Shares 349,167 Value ($000) $8,258 Avg Close $17.37 Range $15.37 - $18.61

Q2 2016

Shares 347,152 Value ($000) $7,110 Avg Close $15.51 Range $14.06 - $16.55

Q1 2016

Shares 341,553 Value ($000) $7,135 Avg Close $14.25 Range $12.36 - $16.26

Q4 2015

Shares 318,041 Value ($000) $5,814 Avg Close $13.86 Range $12.46 - $14.78

Q3 2015

Shares 307,289 Value ($000) $5,261 Avg Close $13.63 Range $11.66 - $15.13

Q2 2015

Shares 280,314 Value ($000) $5,531 Avg Close $16.12 Range $14.79 - $17.27

Q1 2015

Shares 255,075 Value ($000) $5,785 Avg Close $17.82 Range $16.37 - $18.82

Q4 2014

Shares 225,865 Value ($000) $5,179 Avg Close $15.20 Range $12.68 - $17.59

Q3 2014

Shares 42,140 Value ($000) $815 Avg Close $15.47 Range $14.31 - $16.57

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	69,554	$6,090	$85.98	$77.39 - $96.64
Q3 2025	83,474	$6,847	$64.97	$50.94 - $81.93
Q2 2025	119,765	$6,298	$46.30	$36.82 - $52.47
Q1 2025	168,144	$7,698	$48.55	$43.53 - $54.30
Q4 2024	283,117	$13,454	$46.35	$42.94 - $49.78
Q3 2024	340,449	$15,371	$40.86	$36.03 - $44.95
Q2 2024	350,623	$13,622	$33.68	$29.54 - $39.21
Q1 2024	368,591	$12,149	$30.45	$28.32 - $32.29
Q4 2023	373,600	$11,376	$27.12	$23.85 - $29.36
Q3 2023	367,132	$11,187	$30.70	$28.22 - $33.67
Q2 2023	364,450	$12,770	$30.60	$28.39 - $33.72
Q1 2023	364,790	$12,870	$32.11	$29.39 - $34.14
Q4 2022	363,718	$11,617	$29.73	$26.59 - $31.97
Q3 2022	364,503	$10,580	$30.75	$26.45 - $34.17
Q2 2022	362,386	$11,420	$31.05	$28.04 - $33.53
Q1 2022	360,804	$13,320	$34.93	$30.29 - $38.80
Q4 2021	361,369	$13,450	$33.34	$31.26 - $35.25
Q3 2021	348,483	$12,720	$35.29	$32.36 - $37.53
Q2 2021	340,161	$13,910	$38.31	$33.97 - $41.06
Q1 2021	337,437	$14,680	$33.60	$30.34 - $38.69
Q4 2020	340,617	$12,260	$30.87	$27.10 - $33.50
Q3 2020	342,357	$11,100	$26.66	$22.06 - $29.33
Q2 2020	339,536	$8,790	$19.40	$15.19 - $24.47
Q1 2020	338,658	$6,956	$22.10	$14.86 - $25.72
Q4 2019	341,490	$9,941	$24.43	$22.45 - $26.10
Q3 2019	332,222	$9,475	$24.98	$22.31 - $28.54
Q2 2019	327,685	$10,889	$26.62	$23.82 - $29.24
Q1 2019	327,630	$10,845	$27.05	$23.03 - $29.16
Q4 2018	327,255	$9,886	$26.17	$22.76 - $29.38
Q3 2018	332,481	$11,737	$26.48	$22.14 - $29.90
Q2 2018	338,191	$9,304	$22.38	$21.10 - $23.67
Q1 2018	337,891	$9,420	$24.81	$21.97 - $28.19
Q4 2017	345,616	$11,056	$25.23	$23.59 - $26.36
Q3 2017	349,252	$10,450	$23.59	$22.03 - $25.57
Q2 2017	355,217	$10,674	$22.77	$20.81 - $24.32
Q1 2017	362,987	$9,801	$20.97	$18.97 - $22.43
Q4 2016	361,424	$8,772	$18.64	$17.38 - $19.93
Q3 2016	349,167	$8,258	$17.37	$15.37 - $18.61
Q2 2016	347,152	$7,110	$15.51	$14.06 - $16.55
Q1 2016	341,553	$7,135	$14.25	$12.36 - $16.26
Q4 2015	318,041	$5,814	$13.86	$12.46 - $14.78
Q3 2015	307,289	$5,261	$13.63	$11.66 - $15.13
Q2 2015	280,314	$5,531	$16.12	$14.79 - $17.27
Q1 2015	255,075	$5,785	$17.82	$16.37 - $18.82
Q4 2014	225,865	$5,179	$15.20	$12.68 - $17.59
Q3 2014	42,140	$815	$15.47	$14.31 - $16.57