CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

GENERAL AMERICAN INVESTORS CO INC's Holding History (CIK: 0000040417)

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

Q3 2015
Shares 496,000 Value ($000) $10,277 Avg Close $23.24 Range $17.97 - $26.50
Q2 2015
Shares 496,000 Value ($000) $11,745 Avg Close $22.84 Range $18.75 - $26.20
Q1 2015
Shares 566,000 Value ($000) $10,929 Avg Close $19.93 Range $17.86 - $21.47