CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

PEAK6 LLC's Holding History (CIK: 0001389958)

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

Q4 2025

Shares 129,494 Value ($000) $30,285 Avg Close $194.00 Range $143.19 - $248.00

Q3 2025

Shares 2,354 Value ($000) $343 Avg Close $101.84 Range $76.89 - $146.53

Q2 2025

Shares 166,306 Value ($000) $13,526 Avg Close $71.73 Range $49.21 - $86.21

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	129,494	$30,285	$194.00	$143.19 - $248.00
Q3 2025	2,354	$343	$101.84	$76.89 - $146.53
Q2 2025	166,306	$13,526	$71.73	$49.21 - $86.21