CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY's Holding History (CIK: 0000714142)

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

Q4 2025

Shares 44,104 Value ($000) $10 Avg Close $194.00 Range $143.19 - $248.00

Q3 2025

Shares 45,104 Value ($000) $7 Avg Close $101.84 Range $76.89 - $146.53

Q2 2025

Shares 45,104 Value ($000) $4 Avg Close $71.73 Range $49.21 - $86.21

Q1 2025

Shares 45,104 Value ($000) $3 Avg Close $79.05 Range $58.04 - $101.44

Q4 2024

Shares 45,104 Value ($000) $4 Avg Close $71.76 Range $59.60 - $91.82

Q3 2024

Shares 47,324 Value ($000) $3 Avg Close $52.69 Range $44.89 - $63.06

Q2 2024

Shares 48,594 Value ($000) $2 Avg Close $47.46 Range $43.30 - $53.58

Q1 2024

Shares 48,594 Value ($000) $2 Avg Close $52.75 Range $44.22 - $63.24

Q4 2023

Shares 48,594 Value ($000) $2 Avg Close $44.09 Range $39.94 - $48.36

Q3 2023

Shares 50,994 Value ($000) $2 Avg Close $44.08 Range $40.10 - $50.72

Q2 2023

Shares 26,385 Value ($000) $1 Avg Close $45.54 Range $40.84 - $52.67

Q1 2023

Shares 23,917 Value ($000) $1 Avg Close $49.92 Range $45.83 - $54.25

Q4 2022

Shares 23,917 Value ($000) $1 Avg Close $45.21 Range $38.33 - $52.51

Q3 2022

Shares 23,917 Value ($000) $967 Avg Close $48.05 Range $39.44 - $56.38

Q1 2022

Shares 21,086 Value ($000) $1,278 Avg Close $65.45 Range $53.29 - $77.38

Q4 2021

Shares 22,586 Value ($000) $1,738 Avg Close $61.70 Range $51.01 - $78.28

Q3 2021

Shares 22,586 Value ($000) $1,160 Avg Close $55.54 Range $50.34 - $58.85

Q2 2021

Shares 160,542 Value ($000) $9,133 Avg Close $55.12 Range $49.51 - $61.09

Q1 2021

Shares 160,542 Value ($000) $8,785 Avg Close $53.81 Range $47.52 - $57.57

Q4 2020

Shares 24,886 Value ($000) $1,315 Avg Close $44.43 Range $38.03 - $54.05

Q3 2020

Shares 24,886 Value ($000) $988 Avg Close $52.62 Range $38.20 - $61.52

Q2 2020

Shares 24,886 Value ($000) $1,348 Avg Close $49.71 Range $38.00 - $57.19

Q1 2020

Shares 24,886 Value ($000) $991 Avg Close $41.03 Range $30.58 - $44.61

Q4 2019

Shares 29,586 Value ($000) $1,263 Avg Close $38.10 Range $33.22 - $43.97

Q3 2019

Shares 24,986 Value ($000) $980 Avg Close $41.92 Range $37.94 - $46.78

Q2 2019

Shares 24,986 Value ($000) $1,028 Avg Close $38.48 Range $32.76 - $46.23

Q1 2019

Shares 27,486 Value ($000) $1,026 Avg Close $38.83 Range $32.85 - $45.70

Q4 2018

Shares 30,086 Value ($000) $1,020 Avg Close $31.69 Range $28.23 - $36.55

Q3 2018

Shares 30,086 Value ($000) $940 Avg Close $28.02 Range $25.19 - $32.33

Q2 2018

Shares 33,786 Value ($000) $896 Avg Close $25.40 Range $22.99 - $27.10

Q1 2018

Shares 33,786 Value ($000) $875 Avg Close $23.53 Range $20.71 - $27.73

Q4 2017

Shares 28,002 Value ($000) $586 Avg Close $21.20 Range $19.40 - $22.63

Q3 2017

Shares 28,002 Value ($000) $615 Avg Close $23.93 Range $20.86 - $26.92

Q2 2017

Shares 28,002 Value ($000) $701 Avg Close $23.96 Range $21.43 - $27.98

Q1 2017

Shares 23,902 Value ($000) $564 Avg Close $24.52 Range $22.73 - $26.84

Q4 2016

Shares 27,042 Value ($000) $660 Avg Close $21.85 Range $18.94 - $25.19

Q3 2016

Shares 28,442 Value ($000) $620 Avg Close $20.85 Range $17.59 - $23.60

Q2 2016

Shares 28,442 Value ($000) $533 Avg Close $18.11 Range $15.62 - $21.87

Q1 2016

Shares 28,442 Value ($000) $541 Avg Close $18.47 Range $16.32 - $21.14

Q4 2015

Shares 64,202 Value ($000) $1,328 Avg Close $22.97 Range $18.98 - $25.46

Q3 2015

Shares 56,302 Value ($000) $1,166 Avg Close $23.24 Range $17.97 - $26.50

Q2 2015

Shares 56,302 Value ($000) $1,333 Avg Close $22.84 Range $18.75 - $26.20

Q1 2015

Shares 58,742 Value ($000) $1,134 Avg Close $19.93 Range $17.86 - $21.47

Q4 2014

Shares 45,692 Value ($000) $887 Avg Close $16.70 Range $13.77 - $20.14

Q3 2014

Shares 22,842 Value ($000) $382 Avg Close $19.60 Range $16.66 - $22.46

Q2 2014

Shares 22,842 Value ($000) $495 Avg Close $20.54 Range $18.00 - $24.21

Q1 2014

Shares 22,842 Value ($000) $519 Avg Close $23.52 Range $21.41 - $27.16

Q4 2013

Shares 22,842 Value ($000) $547 Avg Close $23.81 Range $20.93 - $27.94

Q3 2013

Shares 24,042 Value ($000) $601 Avg Close $22.53 Range $19.37 - $26.17

Q2 2013

Shares 26,042 Value ($000) $506 Avg Close $16.65 Range $14.14 - $20.60

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	44,104	$10	$194.00	$143.19 - $248.00
Q3 2025	45,104	$7	$101.84	$76.89 - $146.53
Q2 2025	45,104	$4	$71.73	$49.21 - $86.21
Q1 2025	45,104	$3	$79.05	$58.04 - $101.44
Q4 2024	45,104	$4	$71.76	$59.60 - $91.82
Q3 2024	47,324	$3	$52.69	$44.89 - $63.06
Q2 2024	48,594	$2	$47.46	$43.30 - $53.58
Q1 2024	48,594	$2	$52.75	$44.22 - $63.24
Q4 2023	48,594	$2	$44.09	$39.94 - $48.36
Q3 2023	50,994	$2	$44.08	$40.10 - $50.72
Q2 2023	26,385	$1	$45.54	$40.84 - $52.67
Q1 2023	23,917	$1	$49.92	$45.83 - $54.25
Q4 2022	23,917	$1	$45.21	$38.33 - $52.51
Q3 2022	23,917	$967	$48.05	$39.44 - $56.38
Q1 2022	21,086	$1,278	$65.45	$53.29 - $77.38
Q4 2021	22,586	$1,738	$61.70	$51.01 - $78.28
Q3 2021	22,586	$1,160	$55.54	$50.34 - $58.85
Q2 2021	160,542	$9,133	$55.12	$49.51 - $61.09
Q1 2021	160,542	$8,785	$53.81	$47.52 - $57.57
Q4 2020	24,886	$1,315	$44.43	$38.03 - $54.05
Q3 2020	24,886	$988	$52.62	$38.20 - $61.52
Q2 2020	24,886	$1,348	$49.71	$38.00 - $57.19
Q1 2020	24,886	$991	$41.03	$30.58 - $44.61
Q4 2019	29,586	$1,263	$38.10	$33.22 - $43.97
Q3 2019	24,986	$980	$41.92	$37.94 - $46.78
Q2 2019	24,986	$1,028	$38.48	$32.76 - $46.23
Q1 2019	27,486	$1,026	$38.83	$32.85 - $45.70
Q4 2018	30,086	$1,020	$31.69	$28.23 - $36.55
Q3 2018	30,086	$940	$28.02	$25.19 - $32.33
Q2 2018	33,786	$896	$25.40	$22.99 - $27.10
Q1 2018	33,786	$875	$23.53	$20.71 - $27.73
Q4 2017	28,002	$586	$21.20	$19.40 - $22.63
Q3 2017	28,002	$615	$23.93	$20.86 - $26.92
Q2 2017	28,002	$701	$23.96	$21.43 - $27.98
Q1 2017	23,902	$564	$24.52	$22.73 - $26.84
Q4 2016	27,042	$660	$21.85	$18.94 - $25.19
Q3 2016	28,442	$620	$20.85	$17.59 - $23.60
Q2 2016	28,442	$533	$18.11	$15.62 - $21.87
Q1 2016	28,442	$541	$18.47	$16.32 - $21.14
Q4 2015	64,202	$1,328	$22.97	$18.98 - $25.46
Q3 2015	56,302	$1,166	$23.24	$17.97 - $26.50
Q2 2015	56,302	$1,333	$22.84	$18.75 - $26.20
Q1 2015	58,742	$1,134	$19.93	$17.86 - $21.47
Q4 2014	45,692	$887	$16.70	$13.77 - $20.14
Q3 2014	22,842	$382	$19.60	$16.66 - $22.46
Q2 2014	22,842	$495	$20.54	$18.00 - $24.21
Q1 2014	22,842	$519	$23.52	$21.41 - $27.16
Q4 2013	22,842	$547	$23.81	$20.93 - $27.94
Q3 2013	24,042	$601	$22.53	$19.37 - $26.17
Q2 2013	26,042	$506	$16.65	$14.14 - $20.60