$CIEN SEC Filings

Filing Filed On
8-K/A 16 Jan 2018
8-K/A 30 Oct 2017
8-K/A 03 Jun 2014
FORM 8-K/A 09 Sep 2010
FORM 8-K/A 28 May 2010
FORM 8-K/A 12 May 2008
AMENDED FORM 8-K DATED MARCH 31, 1999 05 Apr 1999
CIENA CORPORATION FORM 8-K, AMENDMENT NO. 2 22 Sep 1997
CIENA CORPORATION FROM 8-K/A. 06 Aug 1997