CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

ONTARIO TEACHERS PENSION PLAN BOARD's Holding History (CIK: 0000937567)

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

Q1 2025

Shares 9,021 Value ($000) $545 Avg Close $79.05 Range $58.04 - $101.44

Q2 2024

Shares 57,038 Value ($000) $2,748 Avg Close $47.46 Range $43.30 - $53.58

Q1 2024

Shares 38,640 Value ($000) $1,911 Avg Close $52.75 Range $44.22 - $63.24

Q3 2019

Shares 5,587 Value ($000) $219 Avg Close $41.92 Range $37.94 - $46.78

Q2 2019

Shares 5,587 Value ($000) $230 Avg Close $38.48 Range $32.76 - $46.23

Q1 2019

Shares 5,587 Value ($000) $209 Avg Close $38.83 Range $32.85 - $45.70

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2025	9,021	$545	$79.05	$58.04 - $101.44
Q2 2024	57,038	$2,748	$47.46	$43.30 - $53.58
Q1 2024	38,640	$1,911	$52.75	$44.22 - $63.24
Q3 2019	5,587	$219	$41.92	$37.94 - $46.78
Q2 2019	5,587	$230	$38.48	$32.76 - $46.23
Q1 2019	5,587	$209	$38.83	$32.85 - $45.70