CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM's Holding History (CIK: 0000919079)

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

Q4 2025

Shares 240,967 Value ($000) $56,355 Avg Close $194.00 Range $143.19 - $248.00

Q3 2025

Shares 253,068 Value ($000) $36,864 Avg Close $101.84 Range $76.89 - $146.53

Q2 2025

Shares 251,460 Value ($000) $20,451 Avg Close $71.73 Range $49.21 - $86.21

Q1 2025

Shares 234,166 Value ($000) $14,151 Avg Close $79.05 Range $58.04 - $101.44

Q4 2024

Shares 221,681 Value ($000) $18,801 Avg Close $71.76 Range $59.60 - $91.82

Q3 2024

Shares 237,488 Value ($000) $14,627 Avg Close $52.69 Range $44.89 - $63.06

Q2 2024

Shares 242,899 Value ($000) $11,703 Avg Close $47.46 Range $43.30 - $53.58

Q1 2024

Shares 250,933 Value ($000) $12,409 Avg Close $52.75 Range $44.22 - $63.24

Q4 2023

Shares 202,974 Value ($000) $9,136 Avg Close $44.09 Range $39.94 - $48.36

Q3 2023

Shares 216,784 Value ($000) $10,245 Avg Close $44.08 Range $40.10 - $50.72

Q2 2023

Shares 268,734 Value ($000) $11,419 Avg Close $45.54 Range $40.84 - $52.67

Q1 2023

Shares 285,333 Value ($000) $14,986 Avg Close $49.92 Range $45.83 - $54.25

Q4 2022

Shares 324,992 Value ($000) $16,568 Avg Close $45.21 Range $38.33 - $52.51

Q3 2022

Shares 349,802 Value ($000) $14,142 Avg Close $48.05 Range $39.44 - $56.38

Q2 2022

Shares 289,709 Value ($000) $13,240 Avg Close $51.84 Range $41.63 - $61.78

Q1 2022

Shares 300,480 Value ($000) $18,218 Avg Close $65.45 Range $53.29 - $77.38

Q4 2021

Shares 325,220 Value ($000) $25,032 Avg Close $61.70 Range $51.01 - $78.28

Q3 2021

Shares 346,474 Value ($000) $17,791 Avg Close $55.54 Range $50.34 - $58.85

Q2 2021

Shares 346,719 Value ($000) $19,725 Avg Close $55.12 Range $49.51 - $61.09

Q1 2021

Shares 353,641 Value ($000) $19,351 Avg Close $53.81 Range $47.52 - $57.57

Q4 2020

Shares 374,074 Value ($000) $19,770 Avg Close $44.43 Range $38.03 - $54.05

Q3 2020

Shares 350,163 Value ($000) $13,898 Avg Close $52.62 Range $38.20 - $61.52

Q2 2020

Shares 340,185 Value ($000) $18,424 Avg Close $49.71 Range $38.00 - $57.19

Q1 2020

Shares 342,807 Value ($000) $13,647 Avg Close $41.03 Range $30.58 - $44.61

Q4 2019

Shares 363,989 Value ($000) $15,539 Avg Close $38.10 Range $33.22 - $43.97

Q3 2019

Shares 334,858 Value ($000) $13,136 Avg Close $41.92 Range $37.94 - $46.78

Q2 2019

Shares 239,236 Value ($000) $9,840 Avg Close $38.48 Range $32.76 - $46.23

Q1 2019

Shares 302,418 Value ($000) $11,292 Avg Close $38.83 Range $32.85 - $45.70

Q4 2018

Shares 311,078 Value ($000) $10,549 Avg Close $31.69 Range $28.23 - $36.55

Q3 2018

Shares 343,648 Value ($000) $10,736 Avg Close $28.02 Range $25.19 - $32.33

Q2 2018

Shares 431,216 Value ($000) $11,432 Avg Close $25.40 Range $22.99 - $27.10

Q1 2018

Shares 378,663 Value ($000) $9,807 Avg Close $23.53 Range $20.71 - $27.73

Q4 2017

Shares 342,088 Value ($000) $7,160 Avg Close $21.20 Range $19.40 - $22.63

Q3 2017

Shares 319,658 Value ($000) $7,023 Avg Close $23.93 Range $20.86 - $26.92

Q2 2017

Shares 304,070 Value ($000) $7,608 Avg Close $23.96 Range $21.43 - $27.98

Q1 2017

Shares 292,970 Value ($000) $6,917 Avg Close $24.52 Range $22.73 - $26.84

Q4 2016

Shares 302,670 Value ($000) $7,388 Avg Close $21.85 Range $18.94 - $25.19

Q3 2016

Shares 335,070 Value ($000) $7,305 Avg Close $20.85 Range $17.59 - $23.60

Q2 2016

Shares 365,870 Value ($000) $6,860 Avg Close $18.11 Range $15.62 - $21.87

Q1 2016

Shares 386,670 Value ($000) $7,354 Avg Close $18.47 Range $16.32 - $21.14

Q4 2015

Shares 391,470 Value ($000) $8,100 Avg Close $22.97 Range $18.98 - $25.46

Q3 2015

Shares 377,670 Value ($000) $7,825 Avg Close $23.24 Range $17.97 - $26.50

Q2 2015

Shares 348,000 Value ($000) $8,241 Avg Close $22.84 Range $18.75 - $26.20

Q1 2015

Shares 327,300 Value ($000) $6,343 Avg Close $19.93 Range $17.86 - $21.47

Q4 2014

Shares 327,300 Value ($000) $6,343 Avg Close $16.70 Range $13.77 - $20.14

Q3 2014

Shares 180,700 Value ($000) $3,021 Avg Close $19.60 Range $16.66 - $22.46

Q2 2014

Shares 180,700 Value ($000) $3,914 Avg Close $20.54 Range $18.00 - $24.21

Q1 2014

Shares 216,809 Value ($000) $4,431 Avg Close $23.52 Range $21.41 - $27.16

Q4 2013

Shares 208,280 Value ($000) $4,884 Avg Close $23.81 Range $20.93 - $27.94

Q3 2013

Shares 212,679 Value ($000) $5,313 Avg Close $22.53 Range $19.37 - $26.17

Q2 2013

Shares 148,479 Value ($000) $2,883 Avg Close $16.65 Range $14.14 - $20.60

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	240,967	$56,355	$194.00	$143.19 - $248.00
Q3 2025	253,068	$36,864	$101.84	$76.89 - $146.53
Q2 2025	251,460	$20,451	$71.73	$49.21 - $86.21
Q1 2025	234,166	$14,151	$79.05	$58.04 - $101.44
Q4 2024	221,681	$18,801	$71.76	$59.60 - $91.82
Q3 2024	237,488	$14,627	$52.69	$44.89 - $63.06
Q2 2024	242,899	$11,703	$47.46	$43.30 - $53.58
Q1 2024	250,933	$12,409	$52.75	$44.22 - $63.24
Q4 2023	202,974	$9,136	$44.09	$39.94 - $48.36
Q3 2023	216,784	$10,245	$44.08	$40.10 - $50.72
Q2 2023	268,734	$11,419	$45.54	$40.84 - $52.67
Q1 2023	285,333	$14,986	$49.92	$45.83 - $54.25
Q4 2022	324,992	$16,568	$45.21	$38.33 - $52.51
Q3 2022	349,802	$14,142	$48.05	$39.44 - $56.38
Q2 2022	289,709	$13,240	$51.84	$41.63 - $61.78
Q1 2022	300,480	$18,218	$65.45	$53.29 - $77.38
Q4 2021	325,220	$25,032	$61.70	$51.01 - $78.28
Q3 2021	346,474	$17,791	$55.54	$50.34 - $58.85
Q2 2021	346,719	$19,725	$55.12	$49.51 - $61.09
Q1 2021	353,641	$19,351	$53.81	$47.52 - $57.57
Q4 2020	374,074	$19,770	$44.43	$38.03 - $54.05
Q3 2020	350,163	$13,898	$52.62	$38.20 - $61.52
Q2 2020	340,185	$18,424	$49.71	$38.00 - $57.19
Q1 2020	342,807	$13,647	$41.03	$30.58 - $44.61
Q4 2019	363,989	$15,539	$38.10	$33.22 - $43.97
Q3 2019	334,858	$13,136	$41.92	$37.94 - $46.78
Q2 2019	239,236	$9,840	$38.48	$32.76 - $46.23
Q1 2019	302,418	$11,292	$38.83	$32.85 - $45.70
Q4 2018	311,078	$10,549	$31.69	$28.23 - $36.55
Q3 2018	343,648	$10,736	$28.02	$25.19 - $32.33
Q2 2018	431,216	$11,432	$25.40	$22.99 - $27.10
Q1 2018	378,663	$9,807	$23.53	$20.71 - $27.73
Q4 2017	342,088	$7,160	$21.20	$19.40 - $22.63
Q3 2017	319,658	$7,023	$23.93	$20.86 - $26.92
Q2 2017	304,070	$7,608	$23.96	$21.43 - $27.98
Q1 2017	292,970	$6,917	$24.52	$22.73 - $26.84
Q4 2016	302,670	$7,388	$21.85	$18.94 - $25.19
Q3 2016	335,070	$7,305	$20.85	$17.59 - $23.60
Q2 2016	365,870	$6,860	$18.11	$15.62 - $21.87
Q1 2016	386,670	$7,354	$18.47	$16.32 - $21.14
Q4 2015	391,470	$8,100	$22.97	$18.98 - $25.46
Q3 2015	377,670	$7,825	$23.24	$17.97 - $26.50
Q2 2015	348,000	$8,241	$22.84	$18.75 - $26.20
Q1 2015	327,300	$6,343	$19.93	$17.86 - $21.47
Q4 2014	327,300	$6,343	$16.70	$13.77 - $20.14
Q3 2014	180,700	$3,021	$19.60	$16.66 - $22.46
Q2 2014	180,700	$3,914	$20.54	$18.00 - $24.21
Q1 2014	216,809	$4,431	$23.52	$21.41 - $27.16
Q4 2013	208,280	$4,884	$23.81	$20.93 - $27.94
Q3 2013	212,679	$5,313	$22.53	$19.37 - $26.17
Q2 2013	148,479	$2,883	$16.65	$14.14 - $20.60