CONSTRUCTION - SPECIAL TRADE CONTRACTORS

Latest SC 13G/A SEC Filings
Statement of acquisition of beneficial ownership by individuals: [Amend]

CERBCO INC, SC 13G/A, 2001-01-16
CANISCO RESOURCES INC, SC 13G/A, 2000-02-15
CERBCO INC, SC 13G/A, 2000-02-14
CHICAGO BRIDGE & IRON CO N V, SC 13G/A, 2000-02-10
CHICAGO BRIDGE & IRON CO N V, SC 13G/A, 2000-02-03
APOGEE ENTERPRISES INC, SC 13G/A, 2000-01-28
MATRIX SERVICE CO, SC 13G/A, 2000-01-26
FLOUR CITY INTERNATIONAL INC, SC 13G/A, 1999-11-09
WILLIAMS INDUSTRIES INC, SC 13G/A, 1999-10-04
CANISCO RESOURCES INC, SC 13G/A, 1999-02-22
CERBCO INC, SC 13G/A, 1999-02-16
APOGEE ENTERPRISES INC, SC 13G/A, 1999-02-08
WILLIAMS INDUSTRIES INC, SC 13G/A, 1999-02-05
GROUP MAINTENANCE AMERICA CORP, SC 13G/A, 1999-01-27
WILLIAMS INDUSTRIES INC, SC 13G/A, 1998-12-10
APOGEE ENTERPRISES INC, SC 13G/A, 1998-11-05
AMRE INC, SC 13G/A, 1998-02-05
HEIST C H CORP, SC 13G/A, 1998-02-04
CERBCO INC, SC 13G/A, 1998-01-26
KANEB SERVICES INC, SC 13G/A, 1998-01-26
TANKNOLOGY ENVIRONMENTAL INC /TX/, SC 13G/A, 1998-01-23
CERBCO INC, SC 13G/A, 1997-04-17
OMEGA ENVIRONMENTAL INC, SC 13G/A, 1997-02-18
LAYNE CHRISTENSEN CO, SC 13G/A, 1997-02-14
AMRE INC, SC 13G/A, 1997-02-14
KANEB SERVICES INC, SC 13G/A, 1997-02-12
HEIST C H CORP, SC 13G/A, 1997-02-06
TANKNOLOGY ENVIRONMENTAL INC /TX/, SC 13G/A, 1997-01-29
KANEB SERVICES INC, SC 13G/A, 1997-01-24
APOGEE ENTERPRISES INC, SC 13G/A, 1997-01-08
AMRE INC, SC 13G/A, 1996-03-08
AMRE INC, SC 13G/A, 1996-02-14
HEIST C H CORP, SC 13G/A, 1996-02-14
AMRE INC, SC 13G/A, 1996-02-12
MAXCO INC, SC 13G/A, 1994-02-14


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