Holding(s) in Company

JPMorgan American IT PLC
20 September 2007


Form TR-1 with annex. FSA Version 2.1 updated April 2007



TR-1: Notifications of Major Interests in Shares                JPMorgan American Investment Trust plc

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


2. Reason for notification (yes/no)                                                       Yes

An acquisition or disposal of voting rights


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 (please specify):                                JPMorgan Chase & Co

3. Full name of person(s) subject to notification
obligation:                                            JPMorgan Asset Management (UK) Limited

4. Full name of shareholder(s) (if different from 3):  18 September 2007

5. Date of transaction (and date on which the
threshold is crossed or reached if different):         20 September 2007

6. Date on which issuer notified:                      5%

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



8: Notified Details
A: Voting rights attached to shares


Class/type of      Situation previous to the   Resulting situation after the triggering transaction
shares             triggering transaction
                   Number of     Number of     Number of    Number of voting       Percentage of voting
If possible use    shares        voting rights shares       rights                 rights
ISIN code

                                                            Direct     Indirect    Direct     Indirect
GB0008465055       Below 5%      Below 5%      2,152,326               2,152,326              5.02%


B: Financial Instruments


Resulting situation after the triggering transaction


Type of financial    Expiration date      Exercise/ conversion No. of voting rights  Percentage of voting
instrument                                period/date          that may be acquired  rights
                                                               (if the instrument
                                                               exercised/converted)
N/A






Total (A+B)


Number of voting rights                              Percentage of voting rights
2,152,326                                            5.02%



9. Chain of controlled undertakings through which the voting rights and /or the financial instruments are effectively
held, if applicable:
Total disclosable holding for JPMorgan Chase & Co. : 2,152,326 (5.02%)

Holdings by controlled undertakings of JPMorgan Chase & Co. are as follows:



JPMorgan Asset Management (UK) Limited: 2,152,326 (5.02%)




Proxy Voting:


10. Name of proxy holder:                            N/A


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


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



13. Additional information:                           Please note the group has other holdings which are
                                                      covered by exemptions.

14 Contact name:                                      Tracey Young

15. Contact telephone name:                           020 7325 4513





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