CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

Portolan Capital Management, LLC's Holding History (CIK: 0001350290)

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

Q4 2025
Shares 56,481 Value ($000) $13,209 Avg Close $194.00 Range $143.19 - $248.00
Q3 2025
Shares 88,786 Value ($000) $12,933 Avg Close $101.84 Range $76.89 - $146.53