Rule 8.3 - RIO TINTO PLC
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
Name of person dealing BARCLAYS PLC
(Note 1)
Company dealt in RIO TINTO
Class of relevant security ORD GBP0.10
to which the dealings being
disclosed relate (Note 2)
Date of dealing 18 December 2007
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)
Long Short
Number (%) Number (%)
(1) Relevant 47,861,768 4.80% 2,425,137 0.24%
securities
(2) Derivatives 2,290,769 0.23% 241,009 0.02%
(other than
options)
(3) Options and 204,131 0.02% 1,303,531 0.13%
agreements to
purchase/sell
Total 50,356,668 5.05% 3,969,677 0.40%
(b) Interests and short positions in relevant securities of the company, other
than the class dealt in (Note 3)
Class of Long Short
relevant
security:
Number (%) Number (%)
(1) Relevant
securities
(2) Derivatives
(other than
options)
(3) Options and
agreements to
purchase/sell
Total
(c) Rights to subscribe (Note 3)
Class of relevant security: Details
3. DEALINGS (Note 4)
(a) Purchases and sales
Purchase/sale Number of Securities Price per unit
(GBP)
Purchase 40,053 50.5800
Purchase 469 50.5702
Purchase 139,000 51.1708
Purchase 15,530 46.6430
Purchase 14,400 50.7286
Purchase 584 49.9000
Purchase 85,785 50.6317
Purchase 311 50 .9537
Purchase 3,722 50.2601
Purchase 6,686 50.8406
Purchase 268 50.9537
Purchase 38,838 50.9763
Purchase 15 51.3175
Purchase 3,990 50.8335
Purchase 106 50.6851
Purchase 38,437 50.4113
Purchase 55,037 50.7479
Purchase 23 50.4850
Purchase 3,038 50.1975
Purchase 50,594 50.5800
Purchase 20,813 49.5344
Purchase 1,600 Transfer
Purchase 13,492 50.5800
Purchase 12,420 51.3219
Purchase 39,837 50.3969
Purchase 20,209 50.2180
Sale 2,655 51.0886
Sale 6,686 50.8355
Sale 80 51.4275
Sale 55,037 50.7479
Sale 20,209 50.2180
Sale 3,990 50.8289
Sale 3,683 50.5800
Sale 40 50.2375
Sale 15,530 46.6430
Sale 100 49.3975
Sale 35 Transfer
Sale 153 50.8400
Sale 85,785 50.6317
Sale 108,582 50.6651
Sale 85,785 50.6317
Sale 28 Transfer
Sale 40 50.8400
Sale 106 50.6800
Sale 50 50.8400
Sale 38,838 50.9763
Sale 40,053 50.5800
Sale 562 49.2700
Sale 200 51.4275
Sale 3,722 50.2555
Sale 14,400 50.7210
Sale 200 51.6628
Sale 20,813 49.5344
Sale 3,038 50.1900
Sale 38,437 50.4113
Sale 1,400 50.0000
Sale 12,420 51.3126
Sale 150 50.7600
Sale 60 51.4275
Sale 101 Transfer
Sale 75 49.4475
Sale 2,092 49.8079
Sale 300 49.3150
Sale 13,492 50.5800
Sale 65 49.3732
(b) Derivatives transactions (other than options)
Product name, Long/Short Number of Price per
(e.g. CFD) (Note 6) Securities unit (GBP)
CFD Short 20209 50.2179
CFD Short 3722 50.26
CFD Short 469 50.5701
CFD Short 106 50.685
CFD Short 14400 50.7286
CFD Long 20813 49.5343
CFD Long 2092 49.8079
CFD Long 3038 50.1899
CFD Long 3990 50.8288
CFD Long 6686 50.8355
CFD Long 38838 50.9763
CFD Long 2655 51.0885
CFD Long 12420 51.3126
(c) Options transactions in respect of existing securities
(i) Writing, selling, purchasing or varying
Product name, Writing, Number of Exercise Type, e.g. Expiry Option money
e.g. call selling, securities to price American, date paid/received
option purchasing, which the option European etc. per unit (GBP)
varying etc. relates (GBP)
(ii) Exercising
Product name, e.g. Number of Exercise price per
call option securities unit (Note 5)
(d) Other dealings (including new securities) (Note 4)
Nature of transaction Details Price per unit
(Note 8) (if applicable)
(Note 5)
4. OTHER INFORMATION
None
Agreements, arrangements or understandings relating to options or derivatives
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.
Is a Supplemental Form 8 attached? (Note 9) YES
Date of disclosure 19 December 2007
Contact name Geoff Smith
Telephone number 020 7116 2913
If a connected EFM, name of
offeree/offeror with which connected
If a connected EFM, state nature of
connection (Note 10)
Notes
The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk
SUPPLEMENTAL FORM 8
DETAILS OF OPEN POSITIONS
(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate)
OPEN POSITIONS (Note 1)
Product name, Written or Number of securities Exercise price Type, e.g. Expiry date
e.g. call option purchased to which the option (Note 2) American,
or derivative relates European etc.
Option Purchased 250 3,300.0000 EURO 21/12/2007
Option Purchased -1,000 3,500.0000 EURO 21/12/2007
Option Purchased -500 4,400.0000 EURO 21/12/2007
Option Purchased -350 5,200.0000 EURO 21/12/2007
Option Purchased -306 4,200.0000 EURO 21/12/2007
Option Purchased -300 3,800.0000 EURO 20/06/2008
Option Purchased -300 6,000.0000 EURO 21/12/2007
Option Purchased -275 4,800.0000 EURO 21/12/2007
Option Purchased -250 2,500.0000 EURO 20/06/2008
Option Purchased -250 5,200.0000 EURO 20/03/2008
Option Purchased 50 5,400.0000 EURO 20/03/2008
Option Purchased 100 5,600.0000 EURO 18/01/2008
Option Purchased 125 4,400.0000 EURO 20/06/2008
Option Purchased -100,000 30.0000 AMER 20/06/2008
Option Purchased 250 3,000.0000 EURO 20/06/2008
Option Purchased -300,000 56.0000 AMER 15/02/2008
Option Purchased 250 3,800.0000 EURO 20/06/2008
Option Purchased 250 4,500.0000 EURO 21/12/2007
Option Purchased 250 6,000.0000 EURO 15/02/2008
Option Purchased 250 6,000.0000 EURO 15/02/2008
Option Purchased 275 5,000.0000 EURO 21/12/2007
Option Purchased 306 4,800.0000 EURO 21/12/2007
Option Purchased 350 4,600.0000 EURO 19/12/2008
Option Purchased 350 4,600.0000 EURO 19/12/2008
Option Purchased 450 3,500.0000 EURO 21/12/2007
Option Purchased 500 5,200.0000 EURO 21/12/2007
Option Purchased 200,000 60.0000 AMER 18/01/2008
Option Purchased -600,000 42.0000 AMER 21/12/2007
Option Purchased -300,000 52.0000 AMER 15/02/2008
Option Purchased 125 4,400.0000 EURO 20/06/2008
Notes
1. Where there are open option positions or open derivative positions (except for CFDs), full details should be given.
Full details of any existing agreements to purchase or to sell should also be given on this form.
2. For all prices and other monetary amounts, the currency must be stated.
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