CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

Retirement Systems of Alabama's Holding History (CIK: 0001593051)

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

Q4 2025

Shares 169,290 Value ($000) $39,592 Avg Close $194.00 Range $143.19 - $248.00

Q3 2025

Shares 170,920 Value ($000) $24,898 Avg Close $101.84 Range $76.89 - $146.53

Q2 2025

Shares 173,734 Value ($000) $14,130 Avg Close $71.73 Range $49.21 - $86.21

Q1 2025

Shares 172,972 Value ($000) $10,453 Avg Close $79.05 Range $58.04 - $101.44

Q4 2024

Shares 317,515 Value ($000) $26,928 Avg Close $71.76 Range $59.60 - $91.82

Q3 2024

Shares 403,490 Value ($000) $24,851 Avg Close $52.69 Range $44.89 - $63.06

Q2 2024

Shares 385,064 Value ($000) $18,552 Avg Close $47.46 Range $43.30 - $53.58

Q1 2024

Shares 388,289 Value ($000) $19,201 Avg Close $52.75 Range $44.22 - $63.24

Q4 2023

Shares 460,727 Value ($000) $20,737 Avg Close $44.09 Range $39.94 - $48.36

Q3 2023

Shares 527,147 Value ($000) $24,913 Avg Close $44.08 Range $40.10 - $50.72

Q2 2023

Shares 532,701 Value ($000) $22,634 Avg Close $45.54 Range $40.84 - $52.67

Q1 2023

Shares 454,402 Value ($000) $23,865 Avg Close $49.92 Range $45.83 - $54.25

Q4 2022

Shares 430,736 Value ($000) $21,959 Avg Close $45.21 Range $38.33 - $52.51

Q3 2022

Shares 383,971 Value ($000) $15,524 Avg Close $48.05 Range $39.44 - $56.38

Q2 2022

Shares 388,380 Value ($000) $17,749 Avg Close $51.84 Range $41.63 - $61.78

Q1 2022

Shares 363,705 Value ($000) $22,051 Avg Close $65.45 Range $53.29 - $77.38

Q4 2021

Shares 363,357 Value ($000) $27,968 Avg Close $61.70 Range $51.01 - $78.28

Q3 2021

Shares 430,875 Value ($000) $22,125 Avg Close $55.54 Range $50.34 - $58.85

Q2 2021

Shares 442,360 Value ($000) $25,166 Avg Close $55.12 Range $49.51 - $61.09

Q1 2021

Shares 442,998 Value ($000) $24,241 Avg Close $53.81 Range $47.52 - $57.57

Q4 2020

Shares 411,631 Value ($000) $21,755 Avg Close $44.43 Range $38.03 - $54.05

Q3 2020

Shares 371,071 Value ($000) $14,728 Avg Close $52.62 Range $38.20 - $61.52

Q2 2020

Shares 355,963 Value ($000) $19,279 Avg Close $49.71 Range $38.00 - $57.19

Q1 2020

Shares 466,921 Value ($000) $18,588 Avg Close $41.03 Range $30.58 - $44.61

Q4 2019

Shares 466,921 Value ($000) $19,933 Avg Close $38.10 Range $33.22 - $43.97

Q3 2019

Shares 467,113 Value ($000) $18,325 Avg Close $41.92 Range $37.94 - $46.78

Q2 2019

Shares 451,644 Value ($000) $18,576 Avg Close $38.48 Range $32.76 - $46.23

Q1 2019

Shares 452,711 Value ($000) $16,904 Avg Close $38.83 Range $32.85 - $45.70

Q4 2018

Shares 449,465 Value ($000) $15,241 Avg Close $31.69 Range $28.23 - $36.55

Q3 2018

Shares 519,767 Value ($000) $16,238 Avg Close $28.02 Range $25.19 - $32.33

Q2 2018

Shares 586,205 Value ($000) $15,540 Avg Close $25.40 Range $22.99 - $27.10

Q1 2018

Shares 587,132 Value ($000) $15,207 Avg Close $23.53 Range $20.71 - $27.73

Q4 2017

Shares 684,984 Value ($000) $14,337 Avg Close $21.20 Range $19.40 - $22.63

Q3 2017

Shares 683,402 Value ($000) $15,014 Avg Close $23.93 Range $20.86 - $26.92

Q2 2017

Shares 753,243 Value ($000) $18,846 Avg Close $23.96 Range $21.43 - $27.98

Q1 2017

Shares 752,828 Value ($000) $17,774 Avg Close $24.52 Range $22.73 - $26.84

Q4 2016

Shares 750,419 Value ($000) $18,318 Avg Close $21.85 Range $18.94 - $25.19

Q3 2016

Shares 748,463 Value ($000) $16,316 Avg Close $20.85 Range $17.59 - $23.60

Q2 2016

Shares 166,786 Value ($000) $3,127 Avg Close $18.11 Range $15.62 - $21.87

Q1 2016

Shares 521,585 Value ($000) $9,921 Avg Close $18.47 Range $16.32 - $21.14

Q4 2015

Shares 467,765 Value ($000) $9,678 Avg Close $22.97 Range $18.98 - $25.46

Q3 2015

Shares 467,488 Value ($000) $9,686 Avg Close $23.24 Range $17.97 - $26.50

Q2 2015

Shares 149,385 Value ($000) $3,537 Avg Close $22.84 Range $18.75 - $26.20

Q1 2015

Shares 137,367 Value ($000) $2,653 Avg Close $19.93 Range $17.86 - $21.47

Q4 2014

Shares 137,583 Value ($000) $2,670 Avg Close $16.70 Range $13.77 - $20.14

Q3 2014

Shares 137,583 Value ($000) $2,300 Avg Close $19.60 Range $16.66 - $22.46

Q2 2014

Shares 133,673 Value ($000) $2,895 Avg Close $20.54 Range $18.00 - $24.21

Q1 2014

Shares 490,480 Value ($000) $11,154 Avg Close $23.52 Range $21.41 - $27.16

Q4 2013

Shares 486,461 Value ($000) $11,641 Avg Close $23.81 Range $20.93 - $27.94

Q3 2013

Shares 486,461 Value ($000) $12,152 Avg Close $22.53 Range $19.37 - $26.17

Q2 2013

Shares 123,764 Value ($000) $2,403 Avg Close $16.65 Range $14.14 - $20.60

Q1 2013

Shares 122,433 Value ($000) $1,960 Avg Close $15.85 Range $14.37 - $17.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	169,290	$39,592	$194.00	$143.19 - $248.00
Q3 2025	170,920	$24,898	$101.84	$76.89 - $146.53
Q2 2025	173,734	$14,130	$71.73	$49.21 - $86.21
Q1 2025	172,972	$10,453	$79.05	$58.04 - $101.44
Q4 2024	317,515	$26,928	$71.76	$59.60 - $91.82
Q3 2024	403,490	$24,851	$52.69	$44.89 - $63.06
Q2 2024	385,064	$18,552	$47.46	$43.30 - $53.58
Q1 2024	388,289	$19,201	$52.75	$44.22 - $63.24
Q4 2023	460,727	$20,737	$44.09	$39.94 - $48.36
Q3 2023	527,147	$24,913	$44.08	$40.10 - $50.72
Q2 2023	532,701	$22,634	$45.54	$40.84 - $52.67
Q1 2023	454,402	$23,865	$49.92	$45.83 - $54.25
Q4 2022	430,736	$21,959	$45.21	$38.33 - $52.51
Q3 2022	383,971	$15,524	$48.05	$39.44 - $56.38
Q2 2022	388,380	$17,749	$51.84	$41.63 - $61.78
Q1 2022	363,705	$22,051	$65.45	$53.29 - $77.38
Q4 2021	363,357	$27,968	$61.70	$51.01 - $78.28
Q3 2021	430,875	$22,125	$55.54	$50.34 - $58.85
Q2 2021	442,360	$25,166	$55.12	$49.51 - $61.09
Q1 2021	442,998	$24,241	$53.81	$47.52 - $57.57
Q4 2020	411,631	$21,755	$44.43	$38.03 - $54.05
Q3 2020	371,071	$14,728	$52.62	$38.20 - $61.52
Q2 2020	355,963	$19,279	$49.71	$38.00 - $57.19
Q1 2020	466,921	$18,588	$41.03	$30.58 - $44.61
Q4 2019	466,921	$19,933	$38.10	$33.22 - $43.97
Q3 2019	467,113	$18,325	$41.92	$37.94 - $46.78
Q2 2019	451,644	$18,576	$38.48	$32.76 - $46.23
Q1 2019	452,711	$16,904	$38.83	$32.85 - $45.70
Q4 2018	449,465	$15,241	$31.69	$28.23 - $36.55
Q3 2018	519,767	$16,238	$28.02	$25.19 - $32.33
Q2 2018	586,205	$15,540	$25.40	$22.99 - $27.10
Q1 2018	587,132	$15,207	$23.53	$20.71 - $27.73
Q4 2017	684,984	$14,337	$21.20	$19.40 - $22.63
Q3 2017	683,402	$15,014	$23.93	$20.86 - $26.92
Q2 2017	753,243	$18,846	$23.96	$21.43 - $27.98
Q1 2017	752,828	$17,774	$24.52	$22.73 - $26.84
Q4 2016	750,419	$18,318	$21.85	$18.94 - $25.19
Q3 2016	748,463	$16,316	$20.85	$17.59 - $23.60
Q2 2016	166,786	$3,127	$18.11	$15.62 - $21.87
Q1 2016	521,585	$9,921	$18.47	$16.32 - $21.14
Q4 2015	467,765	$9,678	$22.97	$18.98 - $25.46
Q3 2015	467,488	$9,686	$23.24	$17.97 - $26.50
Q2 2015	149,385	$3,537	$22.84	$18.75 - $26.20
Q1 2015	137,367	$2,653	$19.93	$17.86 - $21.47
Q4 2014	137,583	$2,670	$16.70	$13.77 - $20.14
Q3 2014	137,583	$2,300	$19.60	$16.66 - $22.46
Q2 2014	133,673	$2,895	$20.54	$18.00 - $24.21
Q1 2014	490,480	$11,154	$23.52	$21.41 - $27.16
Q4 2013	486,461	$11,641	$23.81	$20.93 - $27.94
Q3 2013	486,461	$12,152	$22.53	$19.37 - $26.17
Q2 2013	123,764	$2,403	$16.65	$14.14 - $20.60
Q1 2013	122,433	$1,960	$15.85	$14.37 - $17.78