Holding(s) in Company

RNS Number:0136G
Celoxica Holdings PLC
19 October 2007


TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1.  Identity of the issuer or the underlying issuer of existing shares to
    which voting rights are attached

    CELOXICA HOLDINGS PLC

2.  Reason for the notification (please tick the appropriate box or boxes)

    An acquisition or disposal of voting rights                       (X)

    An acquisition or disposal of financial instruments which may     ( )
    result in the acquisition of shares already issued to which
    voting rights are attached

    An event changing the breakdown of voting rights                  ( )

    Other (specify):                                                  ( )

3.  Full name of person(s) subject to the notification obligation:

    Xilinx, Inc.

4.  Full name of shareholder(s) (if different from 3.)

    Xilinx Holding Three Limited

5.  Date of the transaction (and date on which the threshold is crossed
    or reached if different):

    10 Oct 2007

6.  Date on which issuer notified:

    18 Oct 2007

7.  Threshold(s) that is/are crossed or reached:

    14%

8.  Notified details:

A. Voting rights attached to shares

Class/type of shares (if possible using the Ordinary 1p (GB00B0L9TZ33)
ISIN code)

 Situation previous   Resulting situation after the triggering transaction
 to the triggering
    transaction
Number of    Number of   Number of    Number of voting       % of voting rights
Shares       Voting      shares       rights
             Rights
                         Direct       Direct     Indirect    Direct    Indirect

9,082,248    9,082,248   12,240,143   12,240,143             14.5%


B. Financial Instruments

Resulting situation after the triggering transaction
Type of       Expiration   Exercise/            Number of voting     % of voting
financial     date         Conversion Period/   rights that may      rights
instrument                 Date                 be acquired if
                                                the instrument is
                                                exercised/
                                                converted

Total (A+B)
Number of voting rights              % of voting rights

12,240,143                           14.5%

9.  Chain of controlled undertakings through which the voting rights and/
    or the financial instruments are effectively held, if applicable:

    Shares purchased by Xilinx Holding Three Ltd (a wholly-owned
    subsidiary of Xilinx, Inc).

Proxy Voting:

10.  Name of the proxy holder:

11.  Number of voting rights proxy
     holder will cease to hold:

12.  Date on which proxy holder
     will cease to hold voting
     rights:

13.  Additional information:

14:  Contact name:                 Dan Gibbons

15.  Contact telephone number:     720-652-3832




                      This information is provided by RNS
            The company news service from the London Stock Exchange

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