Rule 8.3 - Northgate PLC

Columbia Wanger Asset Management, L.P.
                  

FORM 8.3

DEALINGS BY PERSONS WHO OWN OR CONTROL 1% OR MORE OF ANY CLASS OF RELEVANT
SECURITY (Rule 8.3 of The City Code on Takeovers and Mergers)


Name of purchaser/vendor *                     Columbia Wanger Asset
                                                Management, L.P.
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Company dealt in                               Northgate PLC (GB;NTG)
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Relevant security dealt in                     Ordinary Shares
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If a connected EFM, name of offeree/offeror
 with which connected
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If a connected EFM, nature of connection #
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Date of dealing                                September 13, 2005
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DEALINGS †

Amount bought                                  Price per unit
                                                (currency must be
                                                stated)
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Amount sold                                    Price per unit
                                                (currency must be
                                                stated)
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30,000                                         12.1619 GBP
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Resultant total amount and percentage of the   2,478,600 shares/3.87%
 same relevant security owned or controlled     of outstanding shares
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IS A SUPPLEMENTAL FORM 8 (DERIVATIVE)/FORM 8 (OPTION) ATTACHED?           NO

Date of disclosure                             September 14, 2005
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Contact name                                   Patrick Cunningham
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Telephone number                               312/634-9824
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* Specify the owner or controller in addition to the person dealing. The naming
of nominees or vehicle companies is insufficient. In the case of disclosure of
dealings by fund managers on behalf of discretionary clients, the clients need
not be named.

# See the definition of 'connected fund managers and principal traders' in the
Definitions Section of the Code.

† If disclosing dealings/holdings in derivatives or options, please attach
Supplemental Form 8 (Derivative) or Supplemental Form 8 (Option), as
appropriate.

For details of the Code's dealing disclosure requirements, see Rule 8 and its
Notes which can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk.