CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

NATIXIS ADVISORS, L.P.'s Holding History (CIK: 0001018331)

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

Q4 2025

Shares 80,633 Value ($000) $19 Avg Close $194.00 Range $143.19 - $248.00

Q3 2025

Shares 189,624 Value ($000) $28 Avg Close $101.84 Range $76.89 - $146.53

Q2 2025

Shares 251,395 Value ($000) $20 Avg Close $71.73 Range $49.21 - $86.21

Q1 2025

Shares 138,647 Value ($000) $8 Avg Close $79.05 Range $58.04 - $101.44

Q4 2024

Shares 185,916 Value ($000) $16 Avg Close $71.76 Range $59.60 - $91.82

Q3 2024

Shares 151,747 Value ($000) $9 Avg Close $52.69 Range $44.89 - $63.06

Q2 2024

Shares 23,355 Value ($000) $1 Avg Close $47.46 Range $43.30 - $53.58

Q1 2024

Shares 36,286 Value ($000) $2 Avg Close $52.75 Range $44.22 - $63.24

Q4 2023

Shares 19,910 Value ($000) $1 Avg Close $44.09 Range $39.94 - $48.36

Q3 2023

Shares 94,048 Value ($000) $4 Avg Close $44.08 Range $40.10 - $50.72

Q2 2023

Shares 83,674 Value ($000) $4 Avg Close $45.54 Range $40.84 - $52.67

Q1 2023

Shares 921,501 Value ($000) $48 Avg Close $49.92 Range $45.83 - $54.25

Q4 2022

Shares 875,158 Value ($000) $45 Avg Close $45.21 Range $38.33 - $52.51

Q3 2022

Shares 519,673 Value ($000) $21,010 Avg Close $48.05 Range $39.44 - $56.38

Q2 2022

Shares 651,970 Value ($000) $29,795 Avg Close $51.84 Range $41.63 - $61.78

Q1 2022

Shares 821,538 Value ($000) $49,810 Avg Close $65.45 Range $53.29 - $77.38

Q4 2021

Shares 782,768 Value ($000) $60,250 Avg Close $61.70 Range $51.01 - $78.28

Q3 2021

Shares 716,860 Value ($000) $36,811 Avg Close $55.54 Range $50.34 - $58.85

Q2 2021

Shares 654,222 Value ($000) $37,219 Avg Close $55.12 Range $49.51 - $61.09

Q1 2021

Shares 600,931 Value ($000) $32,882 Avg Close $53.81 Range $47.52 - $57.57

Q4 2020

Shares 400,115 Value ($000) $21,146 Avg Close $44.43 Range $38.03 - $54.05

Q3 2020

Shares 211,025 Value ($000) $8,376 Avg Close $52.62 Range $38.20 - $61.52

Q2 2020

Shares 463,401 Value ($000) $25,098 Avg Close $49.71 Range $38.00 - $57.19

Q1 2020

Shares 76,836 Value ($000) $3,059 Avg Close $41.03 Range $30.58 - $44.61

Q3 2019

Shares 21,822 Value ($000) $856 Avg Close $41.92 Range $37.94 - $46.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	80,633	$19	$194.00	$143.19 - $248.00
Q3 2025	189,624	$28	$101.84	$76.89 - $146.53
Q2 2025	251,395	$20	$71.73	$49.21 - $86.21
Q1 2025	138,647	$8	$79.05	$58.04 - $101.44
Q4 2024	185,916	$16	$71.76	$59.60 - $91.82
Q3 2024	151,747	$9	$52.69	$44.89 - $63.06
Q2 2024	23,355	$1	$47.46	$43.30 - $53.58
Q1 2024	36,286	$2	$52.75	$44.22 - $63.24
Q4 2023	19,910	$1	$44.09	$39.94 - $48.36
Q3 2023	94,048	$4	$44.08	$40.10 - $50.72
Q2 2023	83,674	$4	$45.54	$40.84 - $52.67
Q1 2023	921,501	$48	$49.92	$45.83 - $54.25
Q4 2022	875,158	$45	$45.21	$38.33 - $52.51
Q3 2022	519,673	$21,010	$48.05	$39.44 - $56.38
Q2 2022	651,970	$29,795	$51.84	$41.63 - $61.78
Q1 2022	821,538	$49,810	$65.45	$53.29 - $77.38
Q4 2021	782,768	$60,250	$61.70	$51.01 - $78.28
Q3 2021	716,860	$36,811	$55.54	$50.34 - $58.85
Q2 2021	654,222	$37,219	$55.12	$49.51 - $61.09
Q1 2021	600,931	$32,882	$53.81	$47.52 - $57.57
Q4 2020	400,115	$21,146	$44.43	$38.03 - $54.05
Q3 2020	211,025	$8,376	$52.62	$38.20 - $61.52
Q2 2020	463,401	$25,098	$49.71	$38.00 - $57.19
Q1 2020	76,836	$3,059	$41.03	$30.58 - $44.61
Q3 2019	21,822	$856	$41.92	$37.94 - $46.78