CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

BlackRock, Inc.'s Holding History (CIK: 0002012383)

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

Q4 2025

Shares 16,668,830 Value ($000) $3,898,339 Avg Close $194.00 Range $143.19 - $248.00

Q3 2025

Shares 15,596,111 Value ($000) $2,271,885 Avg Close $101.84 Range $76.89 - $146.53

Q2 2025

Shares 17,067,198 Value ($000) $1,388,075 Avg Close $71.73 Range $49.21 - $86.21

Q1 2025

Shares 17,039,301 Value ($000) $1,029,685 Avg Close $79.05 Range $58.04 - $101.44

Q4 2024

Shares 17,101,640 Value ($000) $1,450,390 Avg Close $71.76 Range $59.60 - $91.82

Q3 2024

Shares 16,151,610 Value ($000) $994,778 Avg Close $52.69 Range $44.89 - $63.06

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	16,668,830	$3,898,339	$194.00	$143.19 - $248.00
Q3 2025	15,596,111	$2,271,885	$101.84	$76.89 - $146.53
Q2 2025	17,067,198	$1,388,075	$71.73	$49.21 - $86.21
Q1 2025	17,039,301	$1,029,685	$79.05	$58.04 - $101.44
Q4 2024	17,101,640	$1,450,390	$71.76	$59.60 - $91.82
Q3 2024	16,151,610	$994,778	$52.69	$44.89 - $63.06