CARRIER1 INTERNATIONAL S A

No description available

5

3,5

5,7

5,7

Other events

5,7

5,7

5,7

5,7

5,7

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

5,7

5,7

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

Other events

7

7,9

Definitive Proxy Statement

7,9

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

7,9

Preliminary Proxy Statement

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

5,7

Annual report pursuant to Section 13 or 15(d)

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

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

Prospectus Supplement for Primary Offering

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

5,7

Registration statement under Securities Act of 1933 (amendment)

Registration (IPO) statement under Securities Act of 1933

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

Definitive Proxy Statement

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

Preliminary Proxy Statement

No description available

Prospectus Supplement with Pricing Information

Prospectus Supplement with Pricing Information

Prospectus Supplement with Pricing Information

Prospectus Supplement with Pricing Information

No description available

Amended Initial Registration Statement

7

Amended Initial Registration Statement

No description available

Amended Initial Registration Statement

Amended Initial Registration Statement

Registration (IPO) statement under Securities Act of 1933

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

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

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)