STERIS Irish FinCo Unlimited Co

Certification by an exchange approving securities for listing

Form for the registration / listing of a class of securities on a national securities exchange pursuant to Section 12(b)

Prospectus filed pursuant to Rule 424(b)(5)

Prospectus filed pursuant to Rule 424(b)(5)

Filing under Securities Act Rules 163/433 of free writing prospectuses

Automatic shelf registration statement of securities of well-known seasoned issuers