CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

Swiss National Bank's Holding History (CIK: 0001582202)

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

Q4 2025

Shares 386,432 Value ($000) $90,375 Avg Close $194.00 Range $143.19 - $248.00

Q3 2025

Shares 274,000 Value ($000) $39,914 Avg Close $101.84 Range $76.89 - $146.53

Q2 2025

Shares 271,700 Value ($000) $22,097 Avg Close $71.73 Range $49.21 - $86.21

Q1 2025

Shares 275,300 Value ($000) $16,636 Avg Close $79.05 Range $58.04 - $101.44

Q4 2024

Shares 284,000 Value ($000) $24,086 Avg Close $71.76 Range $59.60 - $91.82

Q3 2024

Shares 280,500 Value ($000) $17,276 Avg Close $52.69 Range $44.89 - $63.06

Q2 2024

Shares 284,500 Value ($000) $13,707 Avg Close $47.46 Range $43.30 - $53.58

Q1 2024

Shares 286,000 Value ($000) $14,143 Avg Close $52.75 Range $44.22 - $63.24

Q4 2023

Shares 291,300 Value ($000) $13,111 Avg Close $44.09 Range $39.94 - $48.36

Q3 2023

Shares 328,600 Value ($000) $15,530 Avg Close $44.08 Range $40.10 - $50.72

Q2 2023

Shares 324,700 Value ($000) $13,797 Avg Close $45.54 Range $40.84 - $52.67

Q1 2023

Shares 319,800 Value ($000) $16,796 Avg Close $49.92 Range $45.83 - $54.25

Q4 2022

Shares 361,400 Value ($000) $18,424 Avg Close $45.21 Range $38.33 - $52.51

Q3 2022

Shares 360,700 Value ($000) $14,583 Avg Close $48.05 Range $39.44 - $56.38

Q2 2022

Shares 360,400 Value ($000) $16,470 Avg Close $51.84 Range $41.63 - $61.78

Q1 2022

Shares 366,400 Value ($000) $22,215 Avg Close $65.45 Range $53.29 - $77.38

Q4 2021

Shares 340,600 Value ($000) $26,216 Avg Close $61.70 Range $51.01 - $78.28

Q3 2021

Shares 342,500 Value ($000) $17,587 Avg Close $55.54 Range $50.34 - $58.85

Q2 2021

Shares 342,000 Value ($000) $19,456 Avg Close $55.12 Range $49.51 - $61.09

Q1 2021

Shares 352,600 Value ($000) $19,294 Avg Close $53.81 Range $47.52 - $57.57

Q4 2020

Shares 347,400 Value ($000) $18,360 Avg Close $44.43 Range $38.03 - $54.05

Q3 2020

Shares 347,900 Value ($000) $13,808 Avg Close $52.62 Range $38.20 - $61.52

Q2 2020

Shares 342,700 Value ($000) $18,561 Avg Close $49.71 Range $38.00 - $57.19

Q1 2020

Shares 300,000 Value ($000) $11,943 Avg Close $41.03 Range $30.58 - $44.61

Q4 2019

Shares 296,900 Value ($000) $12,675 Avg Close $38.10 Range $33.22 - $43.97

Q3 2019

Shares 293,500 Value ($000) $11,514 Avg Close $41.92 Range $37.94 - $46.78

Q2 2019

Shares 290,900 Value ($000) $11,965 Avg Close $38.48 Range $32.76 - $46.23

Q1 2019

Shares 259,900 Value ($000) $9,705 Avg Close $38.83 Range $32.85 - $45.70

Q4 2018

Shares 253,400 Value ($000) $8,593 Avg Close $31.69 Range $28.23 - $36.55

Q3 2018

Shares 253,400 Value ($000) $7,916 Avg Close $28.02 Range $25.19 - $32.33

Q2 2018

Shares 253,400 Value ($000) $6,718 Avg Close $25.40 Range $22.99 - $27.10

Q1 2018

Shares 247,200 Value ($000) $6,402 Avg Close $23.53 Range $20.71 - $27.73

Q4 2017

Shares 241,600 Value ($000) $5,057 Avg Close $21.20 Range $19.40 - $22.63

Q3 2017

Shares 235,300 Value ($000) $5,170 Avg Close $23.93 Range $20.86 - $26.92

Q2 2017

Shares 235,300 Value ($000) $5,887 Avg Close $23.96 Range $21.43 - $27.98

Q1 2017

Shares 229,700 Value ($000) $5,423 Avg Close $24.52 Range $22.73 - $26.84

Q4 2016

Shares 227,100 Value ($000) $5,544 Avg Close $21.85 Range $18.94 - $25.19

Q3 2016

Shares 222,600 Value ($000) $4,853 Avg Close $20.85 Range $17.59 - $23.60

Q2 2016

Shares 223,400 Value ($000) $4,189 Avg Close $18.11 Range $15.62 - $21.87

Q1 2016

Shares 209,300 Value ($000) $3,842 Avg Close $18.47 Range $16.32 - $21.14

Q4 2015

Shares 160,600 Value ($000) $3,323 Avg Close $22.97 Range $18.98 - $25.46

Q3 2015

Shares 163,100 Value ($000) $3,379 Avg Close $23.24 Range $17.97 - $26.50

Q2 2015

Shares 128,700 Value ($000) $3,048 Avg Close $22.84 Range $18.75 - $26.20

Q1 2015

Shares 119,000 Value ($000) $2,298 Avg Close $19.93 Range $17.86 - $21.47

Q4 2014

Shares 116,900 Value ($000) $2,269 Avg Close $16.70 Range $13.77 - $20.14

Q3 2014

Shares 113,800 Value ($000) $1,903 Avg Close $19.60 Range $16.66 - $22.46

Q2 2014

Shares 114,800 Value ($000) $2,487 Avg Close $20.54 Range $18.00 - $24.21

Q1 2014

Shares 114,800 Value ($000) $2,611 Avg Close $23.52 Range $21.41 - $27.16

Q4 2013

Shares 88,800 Value ($000) $2,125 Avg Close $23.81 Range $20.93 - $27.94

Q3 2013

Shares 87,800 Value ($000) $2,193 Avg Close $22.53 Range $19.37 - $26.17

Q2 2013

Shares 92,600 Value ($000) $1,798 Avg Close $16.65 Range $14.14 - $20.60

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	386,432	$90,375	$194.00	$143.19 - $248.00
Q3 2025	274,000	$39,914	$101.84	$76.89 - $146.53
Q2 2025	271,700	$22,097	$71.73	$49.21 - $86.21
Q1 2025	275,300	$16,636	$79.05	$58.04 - $101.44
Q4 2024	284,000	$24,086	$71.76	$59.60 - $91.82
Q3 2024	280,500	$17,276	$52.69	$44.89 - $63.06
Q2 2024	284,500	$13,707	$47.46	$43.30 - $53.58
Q1 2024	286,000	$14,143	$52.75	$44.22 - $63.24
Q4 2023	291,300	$13,111	$44.09	$39.94 - $48.36
Q3 2023	328,600	$15,530	$44.08	$40.10 - $50.72
Q2 2023	324,700	$13,797	$45.54	$40.84 - $52.67
Q1 2023	319,800	$16,796	$49.92	$45.83 - $54.25
Q4 2022	361,400	$18,424	$45.21	$38.33 - $52.51
Q3 2022	360,700	$14,583	$48.05	$39.44 - $56.38
Q2 2022	360,400	$16,470	$51.84	$41.63 - $61.78
Q1 2022	366,400	$22,215	$65.45	$53.29 - $77.38
Q4 2021	340,600	$26,216	$61.70	$51.01 - $78.28
Q3 2021	342,500	$17,587	$55.54	$50.34 - $58.85
Q2 2021	342,000	$19,456	$55.12	$49.51 - $61.09
Q1 2021	352,600	$19,294	$53.81	$47.52 - $57.57
Q4 2020	347,400	$18,360	$44.43	$38.03 - $54.05
Q3 2020	347,900	$13,808	$52.62	$38.20 - $61.52
Q2 2020	342,700	$18,561	$49.71	$38.00 - $57.19
Q1 2020	300,000	$11,943	$41.03	$30.58 - $44.61
Q4 2019	296,900	$12,675	$38.10	$33.22 - $43.97
Q3 2019	293,500	$11,514	$41.92	$37.94 - $46.78
Q2 2019	290,900	$11,965	$38.48	$32.76 - $46.23
Q1 2019	259,900	$9,705	$38.83	$32.85 - $45.70
Q4 2018	253,400	$8,593	$31.69	$28.23 - $36.55
Q3 2018	253,400	$7,916	$28.02	$25.19 - $32.33
Q2 2018	253,400	$6,718	$25.40	$22.99 - $27.10
Q1 2018	247,200	$6,402	$23.53	$20.71 - $27.73
Q4 2017	241,600	$5,057	$21.20	$19.40 - $22.63
Q3 2017	235,300	$5,170	$23.93	$20.86 - $26.92
Q2 2017	235,300	$5,887	$23.96	$21.43 - $27.98
Q1 2017	229,700	$5,423	$24.52	$22.73 - $26.84
Q4 2016	227,100	$5,544	$21.85	$18.94 - $25.19
Q3 2016	222,600	$4,853	$20.85	$17.59 - $23.60
Q2 2016	223,400	$4,189	$18.11	$15.62 - $21.87
Q1 2016	209,300	$3,842	$18.47	$16.32 - $21.14
Q4 2015	160,600	$3,323	$22.97	$18.98 - $25.46
Q3 2015	163,100	$3,379	$23.24	$17.97 - $26.50
Q2 2015	128,700	$3,048	$22.84	$18.75 - $26.20
Q1 2015	119,000	$2,298	$19.93	$17.86 - $21.47
Q4 2014	116,900	$2,269	$16.70	$13.77 - $20.14
Q3 2014	113,800	$1,903	$19.60	$16.66 - $22.46
Q2 2014	114,800	$2,487	$20.54	$18.00 - $24.21
Q1 2014	114,800	$2,611	$23.52	$21.41 - $27.16
Q4 2013	88,800	$2,125	$23.81	$20.93 - $27.94
Q3 2013	87,800	$2,193	$22.53	$19.37 - $26.17
Q2 2013	92,600	$1,798	$16.65	$14.14 - $20.60