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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001167674-13-000571
Filing Date
2013-02-11
Accepted
2013-02-11 17:15:22
Documents
1

Document Format Files

Seq Description Document Type Size
1 SCHEDULE 13G/A rrd571.htm SC 13G/A 51011
  Complete submission text file 0001167674-13-000571.txt   52654
Mailing Address 6300 BEE CAVE ROAD BUILDING ONE AUSTIN TX 78746
Business Address 6300 BEE CAVE ROAD BUILDING ONE AUSTIN TX 78746 (512) 306-7400
DIMENSIONAL FUND ADVISORS LP (Filed by) CIK: 0000354204 (see all company filings)

IRS No.: 222370029 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000

Mailing Address 220 MILL ROAD CHELMSFORD MA 01824
Business Address 220 MILL ROAD CHELMSFORD MA 01824 9782502900
SYCAMORE NETWORKS INC (Subject) CIK: 0001092367 (see all company filings)

IRS No.: 043410558 | State of Incorp.: DE | Fiscal Year End: 0731
Type: SC 13G/A | Act: 34 | File No.: 005-58421 | Film No.: 13593150
SIC: 3661 Telephone & Telegraph Apparatus