Rule 8.3 - HENDERSON GROUP 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              HENDERSON GROUP PLC
Class of relevant security    ORD GBP0.125
to which the dealings being
disclosed relate (Note 2)
Date of dealing               02 February 2009

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      57,122,505     7.88%        160,795     0.02%
securities
(2) Derivatives    1,511,550     0.21%        267,450     0.04%
(other than
options)
(3) Options and            0     0.00%              0     0.00%
agreements to
purchase/sell
Total             58,634,055     8.08%        428,245     0.06%


(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
Purchase        5,568                  1.6113 AUD
Purchase        503,532                .6500
Purchase        230,100                .6500
Purchase        127,141                .6500
Purchase        120,067                .7306
Purchase        45,753                 .7379
Purchase        38,351                 .7329
Purchase        20,246                 .7280
Purchase        11,352                 .7412
Purchase        5,103                  .7379
Sale            121,448                .7379
Sale            38,891                 .7344
Sale            31,734                 .7367
Sale            18,583                 .7334
Sale            5,000                  .7350


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          18583         0.7333
CFD            Long          38891         0.7344
CFD            Long          5000          0.735
CFD            Long          31734         0.7366
CFD            Long          121448        0.7378
CFD            Short         23053         0.7209
CFD            Short         20246         0.728
CFD            Short         120067        0.7305
CFD            Short         38351         0.7329
CFD            Short         11352         0.7412


(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)                 NO


Date of disclosure                         03 February 2009
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