ROBERTSON CECO CORP

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Certification of termination of registration of a class of securities (Section 12(g))

Tender offer statement by a third party (amendment)

Tender offer statement by a third party (amendment)

General form for quarterly reports under Section 13 or 15(d)

No description available

No description available

Tender offer statement by a third party

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

No description available

Tender offer statement by the issuer

Annual report pursuant to Section 13 or 15(d)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

General form for quarterly reports under Section 13 or 15(d)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

No description available

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

No description available

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

General form for quarterly reports under Section 13 or 15(d)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Required Information in Proxy Statement

Definitive Proxy Statement

4,7

4,7

No description available

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

General form for quarterly reports under Section 13 or 15(d)

2,7

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Annual Report Scanned (Paper)

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

Preliminary Proxy Statement

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Annual Report Scanned (Paper)

Definitive Proxy Statement

Current report pursuant to Section 13 or 15(d)

Current report pursuant to Section 13 or 15(d)

Annual Report Scanned (Paper)

Definitive Proxy Statement