REG-Marathon Asset Management LLP Rule 8.3 - Adecco S.A

LONDON--(Business Wire)--

FORM 8.3

DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE

(Rule 8.3 of the City Code on Takeovers and Mergers)

1. KEY INFORMATION

-0-
*T
Name of person dealing (Note 1) Marathon Asset Management LLP
------------------------------------------ ---------------------------------------------------------------
Company dealt in Adecco S.A
------------------------------------------ ---------------------------------------------------------------
Class of relevant security to which the 1 CHF Ordinary Shares
dealings being disclosed relate (Note 2)
------------------------------------------ ---------------------------------------------------------------
Date of dealing 26th August 2008
------------------------------------------ ---------------------------------------------------------------
*T

2. INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a) Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)

-0-
*T
Long Short
---------------------------- ------------------------------------- -----------------------------------------
Number (%) Number (%)
---------------------------- ------------------ ------------------ ------------------- ---------------------
(1) Relevant securities 2,854,196 (1.508%)
---------------------------- ------------------ ------------------ ------------------- ---------------------
(2) Derivatives (other than
options)
---------------------------- ------------------ ------------------ ------------------- ---------------------
(3) Options and agreements
to purchase/sell
---------------------------- ------------------ ------------------ ------------------- ---------------------
Total 2,854,196 (1.508%)
---------------------------- ------------------ ------------------ ------------------- ---------------------
*T

(b) Interests and short positions in relevant securities of the company, other
than the class dealt in (Note 3)

-0-
*T
Class of relevant security: Long Short
---------------------------------------------------------------------------------------------------------
Number (%)Number (%)
---------------------------------------------------------------------------------------------------------
(1) Relevant securities
---------------------------------------------------------------------------------------------------------
(2) Derivatives (other than
options)
---------------------------------------------------------------------------------------------------------
(3) Options and agreements
to purchase/sell
---------------------------------------------------------------------------------------------------------
Total
---------------------------------------------------------------------------------------------------------
*T

(c) Rights to subscribe (Note 3)

-0-
*T
Class of relevant security: Details
---------------------------------------------------------------------------------------------------------
*T

3. DEALINGS (Note 4)

(a) Purchases and sales

-0-
*T
Purchase/sale Number of securities Price per unit (Note 5)
----------------------------------- ---------------------------------- ------------------------------------
Sale 1,732 49.612 CHF
----------------------------------- ---------------------------------- ------------------------------------
*T

(b) Derivatives transactions (other than options)

-0-
*T
Product name, Long/short (Note 6) Number of securities (Note 7) Price per unit (Note 5)
e.g. CFD
--------------------------------------------------------------------------------------------------------
*T

(c) Options transactions in respect of existing securities

(i) Writing, selling, purchasing or varying

-0-
*T
Product name, Writing, Number of Exercise Type, e.g. Expiry Option money
e.g. call option selling, securities to price American, date paid/received
purchasing, which the option European per unit (Note
varying etc. relates (Note 7) etc. 5)
-------------------------------------------------------------------------------------------------------
*T

(ii) Exercising

-0-
*T
Product name, e.g. call option Number of securities Exercise price per unit (Note 5)
---------------------------------------------------------------------------------------------------------
*T

(d) Other dealings (including new securities) (Note 4)

-0-
*T
Nature of transaction (Note 8) Details Price per unit (if applicable) (Note
5)
---------------------------------------------------------------------------------------------------------
*T

4. OTHER INFORMATION

Agreements, arrangements or understandings relating to options or derivatives

-0-
*T
Full details of any agreement, arrangement or understanding between the person disclosing and any other
person relating to the voting rights of any relevant securities under any option referred to on this
form or relating to the voting rights or future acquisition or disposal of any relevant securities to
which any derivative referred to on this form is referenced. If none, this should be stated.
---------------------------------------------------------------------------------------------------------
*T

Is a Supplemental Form 8 attached? (Note 9) NO

-0-
*T
Date of disclosure 27th August 2008
---------------------------------------------------------------------------------------------------------
Contact name Claire Warner
---------------------------------------------------------------------------------------------------------
Telephone number 0207 497 2211
---------------------------------------------------------------------------------------------------------
If a connected EFM, name of offeree/offeror with which
connected
---------------------------------------------------------------------------------------------------------
If a connected EFM, state nature of connection (Note 10)
---------------------------------------------------------------------------------------------------------
*T

Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk

Marathon Asset Management LLP

Copyright Business Wire 2008