CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

GREAT WEST LIFE ASSURANCE CO /CAN/'s Holding History (CIK: 0001046192)

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

Q4 2025

Shares 105,826 Value ($000) $25 Avg Close $194.00 Range $143.19 - $248.00

Q3 2025

Shares 106,068 Value ($000) $15 Avg Close $101.84 Range $76.89 - $146.53

Q2 2025

Shares 104,784 Value ($000) $9 Avg Close $71.73 Range $49.21 - $86.21

Q1 2025

Shares 108,450 Value ($000) $7 Avg Close $79.05 Range $58.04 - $101.44

Q4 2024

Shares 118,751 Value ($000) $10 Avg Close $71.76 Range $59.60 - $91.82

Q3 2024

Shares 117,300 Value ($000) $7 Avg Close $52.69 Range $44.89 - $63.06

Q2 2024

Shares 111,007 Value ($000) $5 Avg Close $47.46 Range $43.30 - $53.58

Q1 2024

Shares 102,727 Value ($000) $5 Avg Close $52.75 Range $44.22 - $63.24

Q4 2023

Shares 371,180 Value ($000) $17 Avg Close $44.09 Range $39.94 - $48.36

Q3 2023

Shares 343,880 Value ($000) $16 Avg Close $44.08 Range $40.10 - $50.72

Q2 2023

Shares 351,363 Value ($000) $15 Avg Close $45.54 Range $40.84 - $52.67

Q1 2023

Shares 306,861 Value ($000) $16 Avg Close $49.92 Range $45.83 - $54.25

Q4 2022

Shares 258,352 Value ($000) $13 Avg Close $45.21 Range $38.33 - $52.51

Q3 2022

Shares 245,905 Value ($000) $9,935 Avg Close $48.05 Range $39.44 - $56.38

Q2 2022

Shares 248,091 Value ($000) $11,338 Avg Close $51.84 Range $41.63 - $61.78

Q1 2022

Shares 239,314 Value ($000) $14,877 Avg Close $65.45 Range $53.29 - $77.38

Q4 2021

Shares 352,234 Value ($000) $27,109 Avg Close $61.70 Range $51.01 - $78.28

Q3 2021

Shares 335,927 Value ($000) $17,379 Avg Close $55.54 Range $50.34 - $58.85

Q2 2021

Shares 372,927 Value ($000) $21,212 Avg Close $55.12 Range $49.51 - $61.09

Q1 2021

Shares 359,402 Value ($000) $19,655 Avg Close $53.81 Range $47.52 - $57.57

Q4 2020

Shares 173,780 Value ($000) $9,179 Avg Close $44.43 Range $38.03 - $54.05

Q3 2020

Shares 151,313 Value ($000) $6,005 Avg Close $52.62 Range $38.20 - $61.52

Q2 2020

Shares 160,378 Value ($000) $8,682 Avg Close $49.71 Range $38.00 - $57.19

Q1 2020

Shares 135,405 Value ($000) $5,393 Avg Close $41.03 Range $30.58 - $44.61

Q4 2019

Shares 103,688 Value ($000) $4,393 Avg Close $38.10 Range $33.22 - $43.97

Q3 2019

Shares 98,842 Value ($000) $3,878 Avg Close $41.92 Range $37.94 - $46.78

Q2 2019

Shares 96,180 Value ($000) $3,954 Avg Close $38.48 Range $32.76 - $46.23

Q1 2019

Shares 89,612 Value ($000) $3,341 Avg Close $38.83 Range $32.85 - $45.70

Q4 2018

Shares 89,826 Value ($000) $2,826 Avg Close $31.69 Range $28.23 - $36.55

Q3 2018

Shares 84,729 Value ($000) $2,646 Avg Close $28.02 Range $25.19 - $32.33

Q2 2018

Shares 84,729 Value ($000) $2,247 Avg Close $25.40 Range $22.99 - $27.10

Q1 2018

Shares 84,729 Value ($000) $2,196 Avg Close $23.53 Range $20.71 - $27.73

Q4 2017

Shares 85,729 Value ($000) $1,793 Avg Close $21.20 Range $19.40 - $22.63

Q3 2017

Shares 81,559 Value ($000) $1,800 Avg Close $23.93 Range $20.86 - $26.92

Q2 2017

Shares 82,855 Value ($000) $2,072 Avg Close $23.96 Range $21.43 - $27.98

Q1 2017

Shares 82,150 Value ($000) $1,938 Avg Close $24.52 Range $22.73 - $26.84

Q4 2016

Shares 78,080 Value ($000) $1,907 Avg Close $21.85 Range $18.94 - $25.19

Q3 2016

Shares 84,374 Value ($000) $1,838 Avg Close $20.85 Range $17.59 - $23.60

Q2 2016

Shares 74,776 Value ($000) $1,401 Avg Close $18.11 Range $15.62 - $21.87

Q1 2016

Shares 13,045 Value ($000) $248 Avg Close $18.47 Range $16.32 - $21.14

Q4 2015

Shares 13,045 Value ($000) $270 Avg Close $22.97 Range $18.98 - $25.46

Q3 2015

Shares 13,045 Value ($000) $271 Avg Close $23.24 Range $17.97 - $26.50

Q2 2015

Shares 12,764 Value ($000) $307 Avg Close $22.84 Range $18.75 - $26.20

Q1 2015

Shares 10,538 Value ($000) $204 Avg Close $19.93 Range $17.86 - $21.47

Q4 2014

Shares 10,819 Value ($000) $211 Avg Close $16.70 Range $13.77 - $20.14

Q3 2014

Shares 6,819 Value ($000) $114 Avg Close $19.60 Range $16.66 - $22.46

Q2 2014

Shares 33,019 Value ($000) $713 Avg Close $20.54 Range $18.00 - $24.21

Q1 2014

Shares 266,019 Value ($000) $6,023 Avg Close $23.52 Range $21.41 - $27.16

Q4 2013

Shares 132,219 Value ($000) $3,171 Avg Close $23.81 Range $20.93 - $27.94

Q3 2013

Shares 133,163 Value ($000) $3,325 Avg Close $22.53 Range $19.37 - $26.17

Q2 2013

Shares 32,300 Value ($000) $627 Avg Close $16.65 Range $14.14 - $20.60

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	105,826	$25	$194.00	$143.19 - $248.00
Q3 2025	106,068	$15	$101.84	$76.89 - $146.53
Q2 2025	104,784	$9	$71.73	$49.21 - $86.21
Q1 2025	108,450	$7	$79.05	$58.04 - $101.44
Q4 2024	118,751	$10	$71.76	$59.60 - $91.82
Q3 2024	117,300	$7	$52.69	$44.89 - $63.06
Q2 2024	111,007	$5	$47.46	$43.30 - $53.58
Q1 2024	102,727	$5	$52.75	$44.22 - $63.24
Q4 2023	371,180	$17	$44.09	$39.94 - $48.36
Q3 2023	343,880	$16	$44.08	$40.10 - $50.72
Q2 2023	351,363	$15	$45.54	$40.84 - $52.67
Q1 2023	306,861	$16	$49.92	$45.83 - $54.25
Q4 2022	258,352	$13	$45.21	$38.33 - $52.51
Q3 2022	245,905	$9,935	$48.05	$39.44 - $56.38
Q2 2022	248,091	$11,338	$51.84	$41.63 - $61.78
Q1 2022	239,314	$14,877	$65.45	$53.29 - $77.38
Q4 2021	352,234	$27,109	$61.70	$51.01 - $78.28
Q3 2021	335,927	$17,379	$55.54	$50.34 - $58.85
Q2 2021	372,927	$21,212	$55.12	$49.51 - $61.09
Q1 2021	359,402	$19,655	$53.81	$47.52 - $57.57
Q4 2020	173,780	$9,179	$44.43	$38.03 - $54.05
Q3 2020	151,313	$6,005	$52.62	$38.20 - $61.52
Q2 2020	160,378	$8,682	$49.71	$38.00 - $57.19
Q1 2020	135,405	$5,393	$41.03	$30.58 - $44.61
Q4 2019	103,688	$4,393	$38.10	$33.22 - $43.97
Q3 2019	98,842	$3,878	$41.92	$37.94 - $46.78
Q2 2019	96,180	$3,954	$38.48	$32.76 - $46.23
Q1 2019	89,612	$3,341	$38.83	$32.85 - $45.70
Q4 2018	89,826	$2,826	$31.69	$28.23 - $36.55
Q3 2018	84,729	$2,646	$28.02	$25.19 - $32.33
Q2 2018	84,729	$2,247	$25.40	$22.99 - $27.10
Q1 2018	84,729	$2,196	$23.53	$20.71 - $27.73
Q4 2017	85,729	$1,793	$21.20	$19.40 - $22.63
Q3 2017	81,559	$1,800	$23.93	$20.86 - $26.92
Q2 2017	82,855	$2,072	$23.96	$21.43 - $27.98
Q1 2017	82,150	$1,938	$24.52	$22.73 - $26.84
Q4 2016	78,080	$1,907	$21.85	$18.94 - $25.19
Q3 2016	84,374	$1,838	$20.85	$17.59 - $23.60
Q2 2016	74,776	$1,401	$18.11	$15.62 - $21.87
Q1 2016	13,045	$248	$18.47	$16.32 - $21.14
Q4 2015	13,045	$270	$22.97	$18.98 - $25.46
Q3 2015	13,045	$271	$23.24	$17.97 - $26.50
Q2 2015	12,764	$307	$22.84	$18.75 - $26.20
Q1 2015	10,538	$204	$19.93	$17.86 - $21.47
Q4 2014	10,819	$211	$16.70	$13.77 - $20.14
Q3 2014	6,819	$114	$19.60	$16.66 - $22.46
Q2 2014	33,019	$713	$20.54	$18.00 - $24.21
Q1 2014	266,019	$6,023	$23.52	$21.41 - $27.16
Q4 2013	132,219	$3,171	$23.81	$20.93 - $27.94
Q3 2013	133,163	$3,325	$22.53	$19.37 - $26.17
Q2 2013	32,300	$627	$16.65	$14.14 - $20.60