CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

TORTOISE CAPITAL ADVISORS, L.L.C.'s Holding History (CIK: 0001280965)

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

Q4 2025

Shares 26,014 Value ($000) $6,084 Avg Close $194.00 Range $143.19 - $248.00

Q3 2025

Shares 12,540 Value ($000) $1,827 Avg Close $101.84 Range $76.89 - $146.53

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	26,014	$6,084	$194.00	$143.19 - $248.00
Q3 2025	12,540	$1,827	$101.84	$76.89 - $146.53