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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000908733-09-000262
Filing Date
2009-02-09
Accepted
2009-02-06 19:24:47
Documents
1

Document Format Files

Seq Description Document Type Size
1 TESCO 13GA1 tesco.htm SC 13G/A 44377
  Complete submission text file 0000908733-09-000262.txt   46749
Mailing Address 227 W MONROE ST STE 3000 CHICAGO IL 60606
Business Address 227 W MONROE STREET SUITE 3000 CHICAGO IL 60606 3126349231
COLUMBIA WANGER ASSET MANAGEMENT LP (Filed by) CIK: 0000908733 (see all company filings)

IRS No.: 363820584 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000

Mailing Address 3993 W. SAM HOUSTON PARKWAY N. SUITE 100 HOUSTON TX 77043
Business Address 3993 W. SAM HOUSTON PARKWAY N. SUITE 100 HOUSTON TX 77043 713-359-7000
TESCO CORP (Subject) CIK: 0001022705 (see all company filings)

IRS No.: 980053204 | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-51291 | Film No.: 09578714
SIC: 3533 Oil & Gas Field Machinery & Equipment