CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

CHARLES SCHWAB INVESTMENT MANAGEMENT INC's Holding History (CIK: 0000884546)

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

Q4 2025

Shares 935,728 Value ($000) $218,839 Avg Close $194.00 Range $143.19 - $248.00

Q3 2025

Shares 941,775 Value ($000) $137,188 Avg Close $101.84 Range $76.89 - $146.53

Q2 2025

Shares 956,593 Value ($000) $77,800 Avg Close $71.73 Range $49.21 - $86.21

Q1 2025

Shares 952,805 Value ($000) $57,578 Avg Close $79.05 Range $58.04 - $101.44

Q4 2024

Shares 959,831 Value ($000) $81,403 Avg Close $71.76 Range $59.60 - $91.82

Q3 2024

Shares 955,516 Value ($000) $58,850 Avg Close $52.69 Range $44.89 - $63.06

Q2 2024

Shares 948,911 Value ($000) $45,719 Avg Close $47.46 Range $43.30 - $53.58

Q1 2024

Shares 940,523 Value ($000) $46,509 Avg Close $52.75 Range $44.22 - $63.24

Q4 2023

Shares 949,476 Value ($000) $42,736 Avg Close $44.09 Range $39.94 - $48.36

Q3 2023

Shares 930,616 Value ($000) $43,981 Avg Close $44.08 Range $40.10 - $50.72

Q2 2023

Shares 979,713 Value ($000) $41,628 Avg Close $45.54 Range $40.84 - $52.67

Q1 2023

Shares 971,212 Value ($000) $51,008 Avg Close $49.92 Range $45.83 - $54.25

Q4 2022

Shares 955,673 Value ($000) $48,720 Avg Close $45.21 Range $38.33 - $52.51

Q3 2022

Shares 919,961 Value ($000) $37,194 Avg Close $48.05 Range $39.44 - $56.38

Q2 2022

Shares 910,947 Value ($000) $41,631 Avg Close $51.84 Range $41.63 - $61.78

Q1 2022

Shares 909,884 Value ($000) $55,167 Avg Close $65.45 Range $53.29 - $77.38

Q4 2021

Shares 1,106,956 Value ($000) $85,203 Avg Close $61.70 Range $51.01 - $78.28

Q3 2021

Shares 1,070,171 Value ($000) $54,954 Avg Close $55.54 Range $50.34 - $58.85

Q2 2021

Shares 1,001,995 Value ($000) $57,004 Avg Close $55.12 Range $49.51 - $61.09

Q1 2021

Shares 982,253 Value ($000) $53,749 Avg Close $53.81 Range $47.52 - $57.57

Q4 2020

Shares 1,040,186 Value ($000) $54,974 Avg Close $44.43 Range $38.03 - $54.05

Q3 2020

Shares 1,021,120 Value ($000) $40,529 Avg Close $52.62 Range $38.20 - $61.52

Q2 2020

Shares 1,631,847 Value ($000) $88,381 Avg Close $49.71 Range $38.00 - $57.19

Q1 2020

Shares 1,393,910 Value ($000) $55,492 Avg Close $41.03 Range $30.58 - $44.61

Q4 2019

Shares 1,368,639 Value ($000) $58,428 Avg Close $38.10 Range $33.22 - $43.97

Q3 2019

Shares 1,330,847 Value ($000) $52,210 Avg Close $41.92 Range $37.94 - $46.78

Q2 2019

Shares 908,854 Value ($000) $37,382 Avg Close $38.48 Range $32.76 - $46.23

Q1 2019

Shares 1,177,204 Value ($000) $43,957 Avg Close $38.83 Range $32.85 - $45.70

Q4 2018

Shares 1,048,913 Value ($000) $35,569 Avg Close $31.69 Range $28.23 - $36.55

Q3 2018

Shares 1,105,876 Value ($000) $34,548 Avg Close $28.02 Range $25.19 - $32.33

Q2 2018

Shares 1,046,350 Value ($000) $27,739 Avg Close $25.40 Range $22.99 - $27.10

Q1 2018

Shares 983,372 Value ($000) $25,470 Avg Close $23.53 Range $20.71 - $27.73

Q4 2017

Shares 957,269 Value ($000) $20,036 Avg Close $21.20 Range $19.40 - $22.63

Q3 2017

Shares 899,345 Value ($000) $19,759 Avg Close $23.93 Range $20.86 - $26.92

Q2 2017

Shares 847,006 Value ($000) $21,193 Avg Close $23.96 Range $21.43 - $27.98

Q1 2017

Shares 783,160 Value ($000) $18,491 Avg Close $24.52 Range $22.73 - $26.84

Q4 2016

Shares 653,499 Value ($000) $15,952 Avg Close $21.85 Range $18.94 - $25.19

Q3 2016

Shares 508,998 Value ($000) $11,097 Avg Close $20.85 Range $17.59 - $23.60

Q2 2016

Shares 504,552 Value ($000) $9,461 Avg Close $18.11 Range $15.62 - $21.87

Q1 2016

Shares 890,836 Value ($000) $16,944 Avg Close $18.47 Range $16.32 - $21.14

Q4 2015

Shares 1,530,084 Value ($000) $31,658 Avg Close $22.97 Range $18.98 - $25.46

Q3 2015

Shares 1,323,518 Value ($000) $27,424 Avg Close $23.24 Range $17.97 - $26.50

Q2 2015

Shares 559,606 Value ($000) $13,252 Avg Close $22.84 Range $18.75 - $26.20

Q1 2015

Shares 300,279 Value ($000) $5,799 Avg Close $19.93 Range $17.86 - $21.47

Q4 2014

Shares 285,861 Value ($000) $5,549 Avg Close $16.70 Range $13.77 - $20.14

Q3 2014

Shares 275,928 Value ($000) $4,614 Avg Close $19.60 Range $16.66 - $22.46

Q2 2014

Shares 275,097 Value ($000) $5,959 Avg Close $20.54 Range $18.00 - $24.21

Q1 2014

Shares 271,457 Value ($000) $6,173 Avg Close $23.52 Range $21.41 - $27.16

Q4 2013

Shares 263,767 Value ($000) $6,312 Avg Close $23.81 Range $20.93 - $27.94

Q3 2013

Shares 343,017 Value ($000) $8,802 Avg Close $22.53 Range $19.37 - $26.17

Q2 2013

Shares 334,047 Value ($000) $6,501 Avg Close $16.65 Range $14.14 - $20.60

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	935,728	$218,839	$194.00	$143.19 - $248.00
Q3 2025	941,775	$137,188	$101.84	$76.89 - $146.53
Q2 2025	956,593	$77,800	$71.73	$49.21 - $86.21
Q1 2025	952,805	$57,578	$79.05	$58.04 - $101.44
Q4 2024	959,831	$81,403	$71.76	$59.60 - $91.82
Q3 2024	955,516	$58,850	$52.69	$44.89 - $63.06
Q2 2024	948,911	$45,719	$47.46	$43.30 - $53.58
Q1 2024	940,523	$46,509	$52.75	$44.22 - $63.24
Q4 2023	949,476	$42,736	$44.09	$39.94 - $48.36
Q3 2023	930,616	$43,981	$44.08	$40.10 - $50.72
Q2 2023	979,713	$41,628	$45.54	$40.84 - $52.67
Q1 2023	971,212	$51,008	$49.92	$45.83 - $54.25
Q4 2022	955,673	$48,720	$45.21	$38.33 - $52.51
Q3 2022	919,961	$37,194	$48.05	$39.44 - $56.38
Q2 2022	910,947	$41,631	$51.84	$41.63 - $61.78
Q1 2022	909,884	$55,167	$65.45	$53.29 - $77.38
Q4 2021	1,106,956	$85,203	$61.70	$51.01 - $78.28
Q3 2021	1,070,171	$54,954	$55.54	$50.34 - $58.85
Q2 2021	1,001,995	$57,004	$55.12	$49.51 - $61.09
Q1 2021	982,253	$53,749	$53.81	$47.52 - $57.57
Q4 2020	1,040,186	$54,974	$44.43	$38.03 - $54.05
Q3 2020	1,021,120	$40,529	$52.62	$38.20 - $61.52
Q2 2020	1,631,847	$88,381	$49.71	$38.00 - $57.19
Q1 2020	1,393,910	$55,492	$41.03	$30.58 - $44.61
Q4 2019	1,368,639	$58,428	$38.10	$33.22 - $43.97
Q3 2019	1,330,847	$52,210	$41.92	$37.94 - $46.78
Q2 2019	908,854	$37,382	$38.48	$32.76 - $46.23
Q1 2019	1,177,204	$43,957	$38.83	$32.85 - $45.70
Q4 2018	1,048,913	$35,569	$31.69	$28.23 - $36.55
Q3 2018	1,105,876	$34,548	$28.02	$25.19 - $32.33
Q2 2018	1,046,350	$27,739	$25.40	$22.99 - $27.10
Q1 2018	983,372	$25,470	$23.53	$20.71 - $27.73
Q4 2017	957,269	$20,036	$21.20	$19.40 - $22.63
Q3 2017	899,345	$19,759	$23.93	$20.86 - $26.92
Q2 2017	847,006	$21,193	$23.96	$21.43 - $27.98
Q1 2017	783,160	$18,491	$24.52	$22.73 - $26.84
Q4 2016	653,499	$15,952	$21.85	$18.94 - $25.19
Q3 2016	508,998	$11,097	$20.85	$17.59 - $23.60
Q2 2016	504,552	$9,461	$18.11	$15.62 - $21.87
Q1 2016	890,836	$16,944	$18.47	$16.32 - $21.14
Q4 2015	1,530,084	$31,658	$22.97	$18.98 - $25.46
Q3 2015	1,323,518	$27,424	$23.24	$17.97 - $26.50
Q2 2015	559,606	$13,252	$22.84	$18.75 - $26.20
Q1 2015	300,279	$5,799	$19.93	$17.86 - $21.47
Q4 2014	285,861	$5,549	$16.70	$13.77 - $20.14
Q3 2014	275,928	$4,614	$19.60	$16.66 - $22.46
Q2 2014	275,097	$5,959	$20.54	$18.00 - $24.21
Q1 2014	271,457	$6,173	$23.52	$21.41 - $27.16
Q4 2013	263,767	$6,312	$23.81	$20.93 - $27.94
Q3 2013	343,017	$8,802	$22.53	$19.37 - $26.17
Q2 2013	334,047	$6,501	$16.65	$14.14 - $20.60