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Filing Detail
Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
SEC Accession No. 0001306550-23-000639
Filing Date
2023-01-20
Accepted
2023-01-20 09:43:24
Documents
1

Document Format Files

Seq Description Document Type Size
1 us1717793095_011923.txt SC 13G 11670
  Complete submission text file 0001306550-23-000639.txt   13341
Mailing Address 7035 RIDGE ROAD HANOVER MD 21076
Business Address 7035 RIDGE ROAD HANOVER MD 21076 4108658500
CIENA CORP (Subject) CIK: 0000936395 (see all company filings)

IRS No.: 232725311 | State of Incorp.: DE | Fiscal Year End: 1029
Type: SC 13G | Act: 34 | File No.: 005-54195 | Film No.: 23539219
SIC: 3661 Telephone & Telegraph Apparatus

Mailing Address 55 EAST 52ND STREET NEW YORK NY 10055
Business Address 55 EAST 52ND STREET NEW YORK NY 10055 212-810-5300
BlackRock Inc. (Filed by) CIK: 0001364742 (see all company filings)

IRS No.: 320174431 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G
SIC: 6211 Security Brokers, Dealers & Flotation Companies