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Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000912938-02-000191
Filing Date
2002-02-12
Accepted
2002-02-12 00:00:00
Documents
1

Document Format Files

Seq Description Document Type Size
1 CIENA CORP. cienacorp.txt SC 13G 7117
  Complete submission text file 0000912938-02-000191.txt   9076
Mailing Address 500 BOYLSTON STREET 15TH FLOOR BOSTON MA 02116
Business Address 500 BOYLSTON ST 15TH FL BOSTON MA 02116 6179545261
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (Filed by) CIK: 0000912938 (see all company filings)

State of Incorp.: MA | Fiscal Year End: 1231
SIC: 0000

Mailing Address 1201 WINTERSON ROAD LINTHICUM MD 21090
Business Address 1201 WINTERSON ROAD LINTHICUM MD 21090 4108658500
CIENA CORP (Subject) CIK: 0000936395 (see all company filings)

IRS No.: 232725311 | State of Incorp.: DE | Fiscal Year End: 1031
Type: SC 13G | Act: 34 | File No.: 005-54195 | Film No.: 02536921
SIC: 3661 Telephone & Telegraph Apparatus