New GulfMark Offshore, Inc.

Written communication about a business combination transaction (Rule 425)

Prospectus Supplement for Primary Offering

Notice of Effectiveness

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

Written communication about a business combination transaction (Rule 425)

Correspondence with the SEC

Letter from the SEC

Letter from the SEC