CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

LAZARD ASSET MANAGEMENT LLC's Holding History (CIK: 0001207017)

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

Q4 2025

Shares 8,756 Value ($000) $2,048 Avg Close $194.00 Range $143.19 - $248.00

Q3 2025

Shares 2,534 Value ($000) $369 Avg Close $101.84 Range $76.89 - $146.53

Q2 2025

Shares 1,984 Value ($000) $0 Avg Close $71.73 Range $49.21 - $86.21

Q1 2025

Shares 2,780 Value ($000) $0 Avg Close $79.05 Range $58.04 - $101.44

Q4 2024

Shares 1,146 Value ($000) $0 Avg Close $71.76 Range $59.60 - $91.82

Q2 2024

Shares 225,139 Value ($000) $11 Avg Close $47.46 Range $43.30 - $53.58

Q1 2024

Shares 249,586 Value ($000) $12 Avg Close $52.75 Range $44.22 - $63.24

Q4 2023

Shares 672,635 Value ($000) $30 Avg Close $44.09 Range $39.94 - $48.36

Q3 2023

Shares 634,007 Value ($000) $30 Avg Close $44.08 Range $40.10 - $50.72

Q2 2023

Shares 681,309 Value ($000) $29 Avg Close $45.54 Range $40.84 - $52.67

Q1 2023

Shares 563,447 Value ($000) $30 Avg Close $49.92 Range $45.83 - $54.25

Q4 2022

Shares 525,006 Value ($000) $27 Avg Close $45.21 Range $38.33 - $52.51

Q3 2022

Shares 569,342 Value ($000) $23,018 Avg Close $48.05 Range $39.44 - $56.38

Q2 2022

Shares 619,582 Value ($000) $28,314 Avg Close $51.84 Range $41.63 - $61.78

Q1 2022

Shares 810,993 Value ($000) $49,170 Avg Close $65.45 Range $53.29 - $77.38

Q4 2021

Shares 832,406 Value ($000) $64,070 Avg Close $61.70 Range $51.01 - $78.28

Q3 2021

Shares 1,088,039 Value ($000) $55,870 Avg Close $55.54 Range $50.34 - $58.85

Q2 2021

Shares 1,056,957 Value ($000) $60,130 Avg Close $55.12 Range $49.51 - $61.09

Q1 2021

Shares 941,998 Value ($000) $51,546 Avg Close $53.81 Range $47.52 - $57.57

Q4 2020

Shares 713,377 Value ($000) $37,701 Avg Close $44.43 Range $38.03 - $54.05

Q3 2020

Shares 648,399 Value ($000) $25,734 Avg Close $52.62 Range $38.20 - $61.52

Q2 2020

Shares 647,708 Value ($000) $35,079 Avg Close $49.71 Range $38.00 - $57.19

Q1 2020

Shares 623,842 Value ($000) $24,835 Avg Close $41.03 Range $30.58 - $44.61

Q4 2019

Shares 606,985 Value ($000) $25,912 Avg Close $38.10 Range $33.22 - $43.97

Q3 2019

Shares 504,346 Value ($000) $19,785 Avg Close $41.92 Range $37.94 - $46.78

Q2 2019

Shares 323,575 Value ($000) $13,308 Avg Close $38.48 Range $32.76 - $46.23

Q1 2019

Shares 207,130 Value ($000) $7,734 Avg Close $38.83 Range $32.85 - $45.70

Q4 2018

Shares 235,683 Value ($000) $7,992 Avg Close $31.69 Range $28.23 - $36.55

Q3 2018

Shares 258,995 Value ($000) $8,091 Avg Close $28.02 Range $25.19 - $32.33

Q2 2018

Shares 590,645 Value ($000) $15,657 Avg Close $25.40 Range $22.99 - $27.10

Q1 2018

Shares 640,256 Value ($000) $16,582 Avg Close $23.53 Range $20.71 - $27.73

Q4 2017

Shares 668,366 Value ($000) $13,988 Avg Close $21.20 Range $19.40 - $22.63

Q3 2017

Shares 609,615 Value ($000) $13,393 Avg Close $23.93 Range $20.86 - $26.92

Q2 2017

Shares 283,641 Value ($000) $7,096 Avg Close $23.96 Range $21.43 - $27.98

Q1 2017

Shares 398,652 Value ($000) $9,412 Avg Close $24.52 Range $22.73 - $26.84

Q4 2016

Shares 248,825 Value ($000) $6,073 Avg Close $21.85 Range $18.94 - $25.19

Q3 2016

Shares 485,489 Value ($000) $10,583 Avg Close $20.85 Range $17.59 - $23.60

Q2 2016

Shares 519,589 Value ($000) $9,742 Avg Close $18.11 Range $15.62 - $21.87

Q1 2016

Shares 419,851 Value ($000) $7,985 Avg Close $18.47 Range $16.32 - $21.14

Q4 2014

Shares 338 Value ($000) $6 Avg Close $16.70 Range $13.77 - $20.14

Q3 2014

Shares 4,864 Value ($000) $81 Avg Close $19.60 Range $16.66 - $22.46

Q2 2014

Shares 6,200 Value ($000) $134 Avg Close $20.54 Range $18.00 - $24.21

Q1 2014

Shares 6,200 Value ($000) $140 Avg Close $23.52 Range $21.41 - $27.16

Q4 2013

Shares 6,200 Value ($000) $148 Avg Close $23.81 Range $20.93 - $27.94

Q3 2013

Shares 6,200 Value ($000) $154 Avg Close $22.53 Range $19.37 - $26.17

Q2 2013

Shares 6,200 Value ($000) $120 Avg Close $16.65 Range $14.14 - $20.60

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	8,756	$2,048	$194.00	$143.19 - $248.00
Q3 2025	2,534	$369	$101.84	$76.89 - $146.53
Q2 2025	1,984	$0	$71.73	$49.21 - $86.21
Q1 2025	2,780	$0	$79.05	$58.04 - $101.44
Q4 2024	1,146	$0	$71.76	$59.60 - $91.82
Q2 2024	225,139	$11	$47.46	$43.30 - $53.58
Q1 2024	249,586	$12	$52.75	$44.22 - $63.24
Q4 2023	672,635	$30	$44.09	$39.94 - $48.36
Q3 2023	634,007	$30	$44.08	$40.10 - $50.72
Q2 2023	681,309	$29	$45.54	$40.84 - $52.67
Q1 2023	563,447	$30	$49.92	$45.83 - $54.25
Q4 2022	525,006	$27	$45.21	$38.33 - $52.51
Q3 2022	569,342	$23,018	$48.05	$39.44 - $56.38
Q2 2022	619,582	$28,314	$51.84	$41.63 - $61.78
Q1 2022	810,993	$49,170	$65.45	$53.29 - $77.38
Q4 2021	832,406	$64,070	$61.70	$51.01 - $78.28
Q3 2021	1,088,039	$55,870	$55.54	$50.34 - $58.85
Q2 2021	1,056,957	$60,130	$55.12	$49.51 - $61.09
Q1 2021	941,998	$51,546	$53.81	$47.52 - $57.57
Q4 2020	713,377	$37,701	$44.43	$38.03 - $54.05
Q3 2020	648,399	$25,734	$52.62	$38.20 - $61.52
Q2 2020	647,708	$35,079	$49.71	$38.00 - $57.19
Q1 2020	623,842	$24,835	$41.03	$30.58 - $44.61
Q4 2019	606,985	$25,912	$38.10	$33.22 - $43.97
Q3 2019	504,346	$19,785	$41.92	$37.94 - $46.78
Q2 2019	323,575	$13,308	$38.48	$32.76 - $46.23
Q1 2019	207,130	$7,734	$38.83	$32.85 - $45.70
Q4 2018	235,683	$7,992	$31.69	$28.23 - $36.55
Q3 2018	258,995	$8,091	$28.02	$25.19 - $32.33
Q2 2018	590,645	$15,657	$25.40	$22.99 - $27.10
Q1 2018	640,256	$16,582	$23.53	$20.71 - $27.73
Q4 2017	668,366	$13,988	$21.20	$19.40 - $22.63
Q3 2017	609,615	$13,393	$23.93	$20.86 - $26.92
Q2 2017	283,641	$7,096	$23.96	$21.43 - $27.98
Q1 2017	398,652	$9,412	$24.52	$22.73 - $26.84
Q4 2016	248,825	$6,073	$21.85	$18.94 - $25.19
Q3 2016	485,489	$10,583	$20.85	$17.59 - $23.60
Q2 2016	519,589	$9,742	$18.11	$15.62 - $21.87
Q1 2016	419,851	$7,985	$18.47	$16.32 - $21.14
Q4 2014	338	$6	$16.70	$13.77 - $20.14
Q3 2014	4,864	$81	$19.60	$16.66 - $22.46
Q2 2014	6,200	$134	$20.54	$18.00 - $24.21
Q1 2014	6,200	$140	$23.52	$21.41 - $27.16
Q4 2013	6,200	$148	$23.81	$20.93 - $27.94
Q3 2013	6,200	$154	$22.53	$19.37 - $26.17
Q2 2013	6,200	$120	$16.65	$14.14 - $20.60