CORNING INC

Ticker: GLW CUSIP: 219350105 Class: COM

PARTHENON LLC's Holding History (CIK: 0001088859)

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

Q4 2025

Shares 230,650 Value ($000) $20,196 Avg Close $85.98 Range $77.39 - $96.64

Q3 2025

Shares 232,643 Value ($000) $19,084 Avg Close $64.97 Range $50.94 - $81.93

Q2 2025

Shares 243,575 Value ($000) $12,810 Avg Close $46.30 Range $36.82 - $52.47

Q1 2025

Shares 245,075 Value ($000) $11,220 Avg Close $48.55 Range $43.53 - $54.30

Q4 2024

Shares 246,579 Value ($000) $11,717 Avg Close $46.35 Range $42.94 - $49.78

Q3 2024

Shares 253,404 Value ($000) $11,441 Avg Close $40.86 Range $36.03 - $44.95

Q2 2024

Shares 258,377 Value ($000) $10,038 Avg Close $33.68 Range $29.54 - $39.21

Q1 2024

Shares 265,407 Value ($000) $8,748 Avg Close $30.45 Range $28.32 - $32.29

Q4 2023

Shares 274,627 Value ($000) $8,362 Avg Close $27.12 Range $23.85 - $29.36

Q3 2023

Shares 278,712 Value ($000) $8,492 Avg Close $30.70 Range $28.22 - $33.67

Q2 2023

Shares 283,366 Value ($000) $9,929 Avg Close $30.60 Range $28.39 - $33.72

Q1 2023

Shares 285,166 Value ($000) $10,061 Avg Close $32.11 Range $29.39 - $34.14

Q4 2022

Shares 287,316 Value ($000) $9,177 Avg Close $29.73 Range $26.59 - $31.97

Q3 2022

Shares 288,698 Value ($000) $8,378 Avg Close $30.75 Range $26.45 - $34.17

Q2 2022

Shares 289,398 Value ($000) $9,119 Avg Close $31.05 Range $28.04 - $33.53

Q1 2022

Shares 293,048 Value ($000) $10,816 Avg Close $34.93 Range $30.29 - $38.80

Q4 2021

Shares 293,623 Value ($000) $10,932 Avg Close $33.34 Range $31.26 - $35.25

Q3 2021

Shares 301,968 Value ($000) $11,019 Avg Close $35.29 Range $32.36 - $37.53

Q2 2021

Shares 302,943 Value ($000) $12,390 Avg Close $38.31 Range $33.97 - $41.06

Q1 2021

Shares 302,838 Value ($000) $13,176 Avg Close $33.60 Range $30.34 - $38.69

Q4 2020

Shares 300,508 Value ($000) $10,818 Avg Close $30.87 Range $27.10 - $33.50

Q3 2020

Shares 304,245 Value ($000) $9,861 Avg Close $26.66 Range $22.06 - $29.33

Q2 2020

Shares 305,075 Value ($000) $7,901 Avg Close $19.40 Range $15.19 - $24.47

Q1 2020

Shares 304,725 Value ($000) $6,259 Avg Close $22.10 Range $14.86 - $25.72

Q4 2019

Shares 315,634 Value ($000) $9,188 Avg Close $24.43 Range $22.45 - $26.10

Q3 2019

Shares 314,284 Value ($000) $8,963 Avg Close $24.98 Range $22.31 - $28.54

Q2 2019

Shares 314,109 Value ($000) $10,438 Avg Close $26.62 Range $23.82 - $29.24

Q1 2019

Shares 301,854 Value ($000) $9,991 Avg Close $27.05 Range $23.03 - $29.16

Q4 2018

Shares 306,174 Value ($000) $9,250 Avg Close $26.17 Range $22.76 - $29.38

Q3 2018

Shares 305,095 Value ($000) $10,770 Avg Close $26.48 Range $22.14 - $29.90

Q2 2018

Shares 305,095 Value ($000) $8,393 Avg Close $22.38 Range $21.10 - $23.67

Q1 2018

Shares 302,155 Value ($000) $8,424 Avg Close $24.81 Range $21.97 - $28.19

Q4 2017

Shares 298,055 Value ($000) $9,535 Avg Close $25.23 Range $23.59 - $26.36

Q3 2017

Shares 289,835 Value ($000) $8,672 Avg Close $23.59 Range $22.03 - $25.57

Q2 2017

Shares 290,065 Value ($000) $8,716 Avg Close $22.77 Range $20.81 - $24.32

Q1 2017

Shares 285,770 Value ($000) $7,716 Avg Close $20.97 Range $18.97 - $22.43

Q4 2016

Shares 284,270 Value ($000) $6,899 Avg Close $18.64 Range $17.38 - $19.93

Q3 2016

Shares 291,320 Value ($000) $6,890 Avg Close $17.37 Range $15.37 - $18.61

Q2 2016

Shares 292,620 Value ($000) $5,993 Avg Close $15.51 Range $14.06 - $16.55

Q1 2016

Shares 303,945 Value ($000) $6,349 Avg Close $14.25 Range $12.36 - $16.26

Q4 2015

Shares 309,585 Value ($000) $5,659 Avg Close $13.86 Range $12.46 - $14.78

Q3 2015

Shares 314,785 Value ($000) $5,389 Avg Close $13.63 Range $11.66 - $15.13

Q2 2015

Shares 314,675 Value ($000) $6,209 Avg Close $16.12 Range $14.79 - $17.27

Q1 2015

Shares 315,191 Value ($000) $7,149 Avg Close $17.82 Range $16.37 - $18.82

Q4 2014

Shares 308,675 Value ($000) $7,078 Avg Close $15.20 Range $12.68 - $17.59

Q3 2014

Shares 301,790 Value ($000) $5,837 Avg Close $15.47 Range $14.31 - $16.57

Q2 2014

Shares 300,190 Value ($000) $6,589 Avg Close $15.67 Range $14.87 - $16.45

Q1 2014

Shares 297,490 Value ($000) $6,194 Avg Close $13.82 Range $12.14 - $15.48

Q4 2013

Shares 298,890 Value ($000) $5,326 Avg Close $12.05 Range $10.08 - $13.18

Q3 2013

Shares 298,840 Value ($000) $4,360 Avg Close $10.75 Range $10.09 - $11.23

Q2 2013

Shares 294,440 Value ($000) $4,190 Avg Close $10.49 Range $9.09 - $11.82

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	230,650	$20,196	$85.98	$77.39 - $96.64
Q3 2025	232,643	$19,084	$64.97	$50.94 - $81.93
Q2 2025	243,575	$12,810	$46.30	$36.82 - $52.47
Q1 2025	245,075	$11,220	$48.55	$43.53 - $54.30
Q4 2024	246,579	$11,717	$46.35	$42.94 - $49.78
Q3 2024	253,404	$11,441	$40.86	$36.03 - $44.95
Q2 2024	258,377	$10,038	$33.68	$29.54 - $39.21
Q1 2024	265,407	$8,748	$30.45	$28.32 - $32.29
Q4 2023	274,627	$8,362	$27.12	$23.85 - $29.36
Q3 2023	278,712	$8,492	$30.70	$28.22 - $33.67
Q2 2023	283,366	$9,929	$30.60	$28.39 - $33.72
Q1 2023	285,166	$10,061	$32.11	$29.39 - $34.14
Q4 2022	287,316	$9,177	$29.73	$26.59 - $31.97
Q3 2022	288,698	$8,378	$30.75	$26.45 - $34.17
Q2 2022	289,398	$9,119	$31.05	$28.04 - $33.53
Q1 2022	293,048	$10,816	$34.93	$30.29 - $38.80
Q4 2021	293,623	$10,932	$33.34	$31.26 - $35.25
Q3 2021	301,968	$11,019	$35.29	$32.36 - $37.53
Q2 2021	302,943	$12,390	$38.31	$33.97 - $41.06
Q1 2021	302,838	$13,176	$33.60	$30.34 - $38.69
Q4 2020	300,508	$10,818	$30.87	$27.10 - $33.50
Q3 2020	304,245	$9,861	$26.66	$22.06 - $29.33
Q2 2020	305,075	$7,901	$19.40	$15.19 - $24.47
Q1 2020	304,725	$6,259	$22.10	$14.86 - $25.72
Q4 2019	315,634	$9,188	$24.43	$22.45 - $26.10
Q3 2019	314,284	$8,963	$24.98	$22.31 - $28.54
Q2 2019	314,109	$10,438	$26.62	$23.82 - $29.24
Q1 2019	301,854	$9,991	$27.05	$23.03 - $29.16
Q4 2018	306,174	$9,250	$26.17	$22.76 - $29.38
Q3 2018	305,095	$10,770	$26.48	$22.14 - $29.90
Q2 2018	305,095	$8,393	$22.38	$21.10 - $23.67
Q1 2018	302,155	$8,424	$24.81	$21.97 - $28.19
Q4 2017	298,055	$9,535	$25.23	$23.59 - $26.36
Q3 2017	289,835	$8,672	$23.59	$22.03 - $25.57
Q2 2017	290,065	$8,716	$22.77	$20.81 - $24.32
Q1 2017	285,770	$7,716	$20.97	$18.97 - $22.43
Q4 2016	284,270	$6,899	$18.64	$17.38 - $19.93
Q3 2016	291,320	$6,890	$17.37	$15.37 - $18.61
Q2 2016	292,620	$5,993	$15.51	$14.06 - $16.55
Q1 2016	303,945	$6,349	$14.25	$12.36 - $16.26
Q4 2015	309,585	$5,659	$13.86	$12.46 - $14.78
Q3 2015	314,785	$5,389	$13.63	$11.66 - $15.13
Q2 2015	314,675	$6,209	$16.12	$14.79 - $17.27
Q1 2015	315,191	$7,149	$17.82	$16.37 - $18.82
Q4 2014	308,675	$7,078	$15.20	$12.68 - $17.59
Q3 2014	301,790	$5,837	$15.47	$14.31 - $16.57
Q2 2014	300,190	$6,589	$15.67	$14.87 - $16.45
Q1 2014	297,490	$6,194	$13.82	$12.14 - $15.48
Q4 2013	298,890	$5,326	$12.05	$10.08 - $13.18
Q3 2013	298,840	$4,360	$10.75	$10.09 - $11.23
Q2 2013	294,440	$4,190	$10.49	$9.09 - $11.82