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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000354204-12-001199
Filing Date
2012-02-14
Accepted
2012-02-14 07:34:51
Documents
1

Document Format Files

Seq Description Document Type Size
1 SCHEDULE 13G/A rrd444.htm SC 13G/A 50116
  Complete submission text file 0000354204-12-001199.txt   51849
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 3120 UNIONVILLE ROAD SUITE 400 CRANBERRY TWP. PA 16046
Business Address 3120 UNIONVILLE ROAD SUITE 400 CRANBERRY TWP. PA 16046 724-720-1400
TOLLGRADE COMMUNICATIONS INC \PA\ (Subject) CIK: 0001002531 (see all company filings)

IRS No.: 251537134 | State of Incorp.: PA | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-50381 | Film No.: 12602488
SIC: 7385 Services-Telephone Interconnect Systems