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Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000934999-12-000004
Filing Date
2012-02-22
Accepted
2012-02-22 14:10:43
Documents
1

Document Format Files

Seq Description Document Type Size
1 DEALERTRACK HOLDINGS ANNUAL trakann2011.txt SC 13G/A 802
  Complete submission text file 0000934999-12-000004.txt   2341
Mailing Address DF DENT & CO INC 2 EAST READ ST BALTIMORE MD 21202
Business Address 2 EAST READ STREET 6TH FLOOR BALTIMORE MD 21202 4108372544
DF DENT & CO INC (Filed by) CIK: 0000934999 (see all company filings)

IRS No.: 521045317 | State of Incorp.: MD | Fiscal Year End: 1231
Type: SC 13G/A

Mailing Address 1111 MARCUS AVENUE SUITE M04 LAKE SUCCESS NY 11042
Business Address 1111 MARCUS AVENUE SUITE M04 LAKE SUCCESS NY 11042 (516) 734-3600
DealerTrack Holdings, Inc. (Subject) CIK: 0001333513 (see all company filings)

IRS No.: 522336218 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-81223 | Film No.: 12629758
SIC: 7373 Services-Computer Integrated Systems Design