SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549


                                    FORM 6-K


                        Report of Foreign Private Issuer


                       Pursuant to Rule 13a-16 or 15d-16
                     of the Securities Exchange Act of 1934


                          For the month of March, 2006

                              RYANAIR HOLDINGS PLC
                (Translation of registrant's name into English)

                     c/o Ryanair Ltd Corporate Head Office
                                 Dublin Airport
                             County Dublin Ireland
                    (Address of principal executive offices)


Indicate by check mark whether the registrant files or will file annual
reports under cover Form 20-F or Form 40-F.

                         Form 20-F..X.. Form 40-F.....


Indicate by check mark whether the registrant by furnishing the information
contained in this Form is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange
Act of 1934.

                               Yes ..... No ..X..


If "Yes" is marked, indicate below the file number assigned to the registrant
in connection with Rule 12g3-2(b): 82- ________


Wellington Management Company, llp                     75 State Street
                                                       Boston
                                                       Massachusetts 02109
                                                       Telephone: (617) 951-5000
                                                       Fax: (617) 951-5250



                                                                    7 March 2006

    Company Secretary
    Mr. Jim Callaghan
    Ryanair Holdings plc
    C/O Ryanair Ltd Corporate Head Office
    Dublin Airport
    County Dublin
    Ireland L2

    Re: Notification concerning interests in shares of Ryanair Holdings plc (the
    "Company")

    Dear Mr. Callaghan:

    1
    Wellington Management Company, LLP ("Wellington Management") is registered
    as an investment adviser with the United States Securities and Exchange
    Commission and acts as discretionary investment manager on behalf of various
    separate accounts (the "Accounts") that hold an interest in shares of the
    Company. Wellington Management's interest in the shares is as an investment
    manager, as is mentioned in Sections 67(1) and 77(4)(B) of the Companies Act
    1990 (the "Act"). The Accounts do not act as a group nor do they act in
    concert with respect to the interests in shares. Wellington Management
    acquired the interests in shares for the Accounts in its capacity as
    discretionary investment manager to, and solely for the benefit of, the
    Accounts, and the interests were acquired solely for investment purposes.
    The shares are registered in the name of the Accounts or the Accounts'
    custodians or nominees according to their respective holdings.

    2

    Wellington Management as discretionary investment manager on behalf of
    various separate accounts, has purchased, in the aggregate, 1,231,214
    ordinary shares and 13,152,650 ADR shares. On a converted basis, this
    represents the equivalent of 66,994,464 ordinary shares, or 8.71% of the
    shares outstanding, of the Company. This is a decrease of 0.33% since our
    notification on 14 November 2005. Therefore, Wellington Management hereby
    gives notice to the Company of such interest in shares, pursuant to the
    provisions of Sections 67(1) and 77(4)(B) of the Act.

    3

    This notice is given in fulfillment of, and for the express purpose of
    discharging the obligations imposed on us by, Sections 67(1) and 77(4)(B) of
    the Act and arising out of the circumstances referred to in paragraph 2.

    If you have any questions or comments, please do not hesitate to contact me
    at 617-790-7745.

    Regards,



    Julie A. Jenkins
    Vice President and Counsel
    Wellington Management Company, LLP





                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned, hereunto duly authorized.

                                    RYANAIR HOLDINGS PLC


Date:  9th March 2006

                                    By:___/s/ Howard Millar____

                                    H Millar
                                    Company Secretary & Finance Director