CORNING INC

Ticker: GLW CUSIP: 219350105 Class: COM

JOHN G ULLMAN & ASSOCIATES INC's Holding History (CIK: 0000919530)

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

Q4 2025

Shares 383,531 Value ($000) $33,582 Avg Close $85.98 Range $77.39 - $96.64

Q3 2025

Shares 409,169 Value ($000) $33,564 Avg Close $64.97 Range $50.94 - $81.93

Q2 2025

Shares 560,239 Value ($000) $29,463 Avg Close $46.30 Range $36.82 - $52.47

Q1 2025

Shares 565,932 Value ($000) $25,908 Avg Close $48.55 Range $43.53 - $54.30

Q4 2024

Shares 620,907 Value ($000) $29,506 Avg Close $46.35 Range $42.94 - $49.78

Q3 2024

Shares 669,877 Value ($000) $30,245 Avg Close $40.86 Range $36.03 - $44.95

Q2 2024

Shares 703,431 Value ($000) $27,328 Avg Close $33.68 Range $29.54 - $39.21

Q1 2024

Shares 713,833 Value ($000) $23,528 Avg Close $30.45 Range $28.32 - $32.29

Q4 2023

Shares 744,708 Value ($000) $22,676 Avg Close $27.12 Range $23.85 - $29.36

Q3 2023

Shares 729,950 Value ($000) $22,242 Avg Close $30.70 Range $28.22 - $33.67

Q2 2023

Shares 756,321 Value ($000) $26,502 Avg Close $30.60 Range $28.39 - $33.72

Q1 2023

Shares 757,433 Value ($000) $27 Avg Close $32.11 Range $29.39 - $34.14

Q4 2022

Shares 775,142 Value ($000) $25 Avg Close $29.73 Range $26.59 - $31.97

Q3 2022

Shares 772,933 Value ($000) $22,431 Avg Close $30.75 Range $26.45 - $34.17

Q2 2022

Shares 750,026 Value ($000) $23,633 Avg Close $31.05 Range $28.04 - $33.53

Q1 2022

Shares 672,841 Value ($000) $24,835 Avg Close $34.93 Range $30.29 - $38.80

Q4 2021

Shares 647,406 Value ($000) $24,103 Avg Close $33.34 Range $31.26 - $35.25

Q3 2021

Shares 635,820 Value ($000) $23,201 Avg Close $35.29 Range $32.36 - $37.53

Q2 2021

Shares 610,198 Value ($000) $24,957 Avg Close $38.31 Range $33.97 - $41.06

Q1 2021

Shares 619,278 Value ($000) $26,945 Avg Close $33.60 Range $30.34 - $38.69

Q4 2020

Shares 635,327 Value ($000) $22,872 Avg Close $30.87 Range $27.10 - $33.50

Q3 2020

Shares 653,095 Value ($000) $21,167 Avg Close $26.66 Range $22.06 - $29.33

Q2 2020

Shares 662,578 Value ($000) $17,160 Avg Close $19.40 Range $15.19 - $24.47

Q1 2020

Shares 885,963 Value ($000) $18,197 Avg Close $22.10 Range $14.86 - $25.72

Q4 2019

Shares 884,776 Value ($000) $25,755 Avg Close $24.43 Range $22.45 - $26.10

Q3 2019

Shares 848,915 Value ($000) $24,210 Avg Close $24.98 Range $22.31 - $28.54

Q2 2019

Shares 782,510 Value ($000) $26,002 Avg Close $26.62 Range $23.82 - $29.24

Q1 2019

Shares 651,882 Value ($000) $21,577 Avg Close $27.05 Range $23.03 - $29.16

Q4 2018

Shares 656,337 Value ($000) $19,828 Avg Close $26.17 Range $22.76 - $29.38

Q3 2018

Shares 667,590 Value ($000) $23,565 Avg Close $26.48 Range $22.14 - $29.90

Q2 2018

Shares 715,190 Value ($000) $19,675 Avg Close $22.38 Range $21.10 - $23.67

Q1 2018

Shares 686,313 Value ($000) $19,134 Avg Close $24.81 Range $21.97 - $28.19

Q4 2017

Shares 701,095 Value ($000) $22,428 Avg Close $25.23 Range $23.59 - $26.36

Q3 2017

Shares 703,633 Value ($000) $21,053 Avg Close $23.59 Range $22.03 - $25.57

Q2 2017

Shares 709,325 Value ($000) $21,315 Avg Close $22.77 Range $20.81 - $24.32

Q1 2017

Shares 734,037 Value ($000) $19,819 Avg Close $20.97 Range $18.97 - $22.43

Q4 2016

Shares 897,068 Value ($000) $21,772 Avg Close $18.64 Range $17.38 - $19.93

Q3 2016

Shares 901,186 Value ($000) $21,313 Avg Close $17.37 Range $15.37 - $18.61

Q2 2016

Shares 948,099 Value ($000) $19,417 Avg Close $15.51 Range $14.06 - $16.55

Q1 2016

Shares 929,345 Value ($000) $19,414 Avg Close $14.25 Range $12.36 - $16.26

Q4 2015

Shares 1,163,919 Value ($000) $21,276 Avg Close $13.86 Range $12.46 - $14.78

Q3 2015

Shares 1,166,847 Value ($000) $19,976 Avg Close $13.63 Range $11.66 - $15.13

Q2 2015

Shares 1,207,460 Value ($000) $23,823 Avg Close $16.12 Range $14.79 - $17.27

Q1 2015

Shares 1,001,720 Value ($000) $22,719 Avg Close $17.82 Range $16.37 - $18.82

Q4 2014

Shares 1,013,359 Value ($000) $23,236 Avg Close $15.20 Range $12.68 - $17.59

Q3 2014

Shares 1,051,839 Value ($000) $20,343 Avg Close $15.47 Range $14.31 - $16.57

Q2 2014

Shares 1,097,433 Value ($000) $24,089 Avg Close $15.67 Range $14.87 - $16.45

Q1 2014

Shares 1,185,702 Value ($000) $24,686 Avg Close $13.82 Range $12.14 - $15.48

Q4 2013

Shares 1,283,908 Value ($000) $22,879 Avg Close $12.05 Range $10.08 - $13.18

Q3 2013

Shares 1,316,986 Value ($000) $19,215 Avg Close $10.75 Range $10.09 - $11.23

Q2 2013

Shares 1,323,824 Value ($000) $18,838 Avg Close $10.49 Range $9.09 - $11.82

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	383,531	$33,582	$85.98	$77.39 - $96.64
Q3 2025	409,169	$33,564	$64.97	$50.94 - $81.93
Q2 2025	560,239	$29,463	$46.30	$36.82 - $52.47
Q1 2025	565,932	$25,908	$48.55	$43.53 - $54.30
Q4 2024	620,907	$29,506	$46.35	$42.94 - $49.78
Q3 2024	669,877	$30,245	$40.86	$36.03 - $44.95
Q2 2024	703,431	$27,328	$33.68	$29.54 - $39.21
Q1 2024	713,833	$23,528	$30.45	$28.32 - $32.29
Q4 2023	744,708	$22,676	$27.12	$23.85 - $29.36
Q3 2023	729,950	$22,242	$30.70	$28.22 - $33.67
Q2 2023	756,321	$26,502	$30.60	$28.39 - $33.72
Q1 2023	757,433	$27	$32.11	$29.39 - $34.14
Q4 2022	775,142	$25	$29.73	$26.59 - $31.97
Q3 2022	772,933	$22,431	$30.75	$26.45 - $34.17
Q2 2022	750,026	$23,633	$31.05	$28.04 - $33.53
Q1 2022	672,841	$24,835	$34.93	$30.29 - $38.80
Q4 2021	647,406	$24,103	$33.34	$31.26 - $35.25
Q3 2021	635,820	$23,201	$35.29	$32.36 - $37.53
Q2 2021	610,198	$24,957	$38.31	$33.97 - $41.06
Q1 2021	619,278	$26,945	$33.60	$30.34 - $38.69
Q4 2020	635,327	$22,872	$30.87	$27.10 - $33.50
Q3 2020	653,095	$21,167	$26.66	$22.06 - $29.33
Q2 2020	662,578	$17,160	$19.40	$15.19 - $24.47
Q1 2020	885,963	$18,197	$22.10	$14.86 - $25.72
Q4 2019	884,776	$25,755	$24.43	$22.45 - $26.10
Q3 2019	848,915	$24,210	$24.98	$22.31 - $28.54
Q2 2019	782,510	$26,002	$26.62	$23.82 - $29.24
Q1 2019	651,882	$21,577	$27.05	$23.03 - $29.16
Q4 2018	656,337	$19,828	$26.17	$22.76 - $29.38
Q3 2018	667,590	$23,565	$26.48	$22.14 - $29.90
Q2 2018	715,190	$19,675	$22.38	$21.10 - $23.67
Q1 2018	686,313	$19,134	$24.81	$21.97 - $28.19
Q4 2017	701,095	$22,428	$25.23	$23.59 - $26.36
Q3 2017	703,633	$21,053	$23.59	$22.03 - $25.57
Q2 2017	709,325	$21,315	$22.77	$20.81 - $24.32
Q1 2017	734,037	$19,819	$20.97	$18.97 - $22.43
Q4 2016	897,068	$21,772	$18.64	$17.38 - $19.93
Q3 2016	901,186	$21,313	$17.37	$15.37 - $18.61
Q2 2016	948,099	$19,417	$15.51	$14.06 - $16.55
Q1 2016	929,345	$19,414	$14.25	$12.36 - $16.26
Q4 2015	1,163,919	$21,276	$13.86	$12.46 - $14.78
Q3 2015	1,166,847	$19,976	$13.63	$11.66 - $15.13
Q2 2015	1,207,460	$23,823	$16.12	$14.79 - $17.27
Q1 2015	1,001,720	$22,719	$17.82	$16.37 - $18.82
Q4 2014	1,013,359	$23,236	$15.20	$12.68 - $17.59
Q3 2014	1,051,839	$20,343	$15.47	$14.31 - $16.57
Q2 2014	1,097,433	$24,089	$15.67	$14.87 - $16.45
Q1 2014	1,185,702	$24,686	$13.82	$12.14 - $15.48
Q4 2013	1,283,908	$22,879	$12.05	$10.08 - $13.18
Q3 2013	1,316,986	$19,215	$10.75	$10.09 - $11.23
Q2 2013	1,323,824	$18,838	$10.49	$9.09 - $11.82