Holding(s) in Company

John Wood Group PLC ("Company")


NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Name of Issuer

JOHN WOOD GROUP PLC

2. Reason for Notification

ACQUISITION OF VOTING RIGHTS

3. Full name of person(s) subject to notification obligation

AMERIPRISE FINANCIAL, INC. AND ITS GROUP

4. Full name of shareholder(s) (if different from 3 above)

SEE SECTION 13 - ADDITIONAL INFORMATION

5. Date of the transaction and date on which the threshold is crossed or
reached

3 APRIL 2013

6. Date on which issuer notified

4 APRIL 2013

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

ABOVE 5%

8. Notified details

(A) Voting rights attached to shares

Number of voting rights - Direct - 333,872 - 0.09%

Number of voting rights - Indirect - 18,400,514 - 4.93%

(B) Financial Instruments

N/A

(C) Financial Instruments with similar economic effect to Qualifying Financial
Instruments

Resulting situation after the triggering transaction

Type of financial instrument - N/A

Exercise Price - N/A

Expiration date - N/A

Exercise/conversion period - N/A

Number of voting rights instrument refers to - N/A

Percentage of voting rights - Nominal - N/A Delta - N/A

Total A + B + C

Number of voting rights - 18,734,386

Percentage of voting rights - 5.02%

9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable

Ameriprise Financial, Inc., which through intermediate holding companies
controls the voting rights of Columbia Management Investment Advisers, Columbia
Wanger Asset Management, Threadneedle Management Luxembourg S.A. and
Threadneedle Asset Management Holdings Ltd, which itself controls the voting
rights of Threadneedle Asset Management Ltd, Threadneedle International Ltd and
Threadneedle Pensions Ltd.

PROXY VOTING

10. Name of the proxy holder

N/A

11. Number of voting rights proxy holder will cease to hold

N/A

12. Date on which proxy holder will cease to hold voting rights

N/A

13. Additional Information

Littledown Nominees Ltd         A/c ZLA08          24,570
                                                         
Littledown Nominees Ltd         A/c 39364         625,061
                                                         
Royal Trust Corp of Canada      A/c 719306        124,826
                                                         
HSBC Global Custody Nominees    A/c 5000212310     98,733
(UK) Ltd                                                 
                                                         
The Bank Of New York ( Nominees A/c PTG 468        78,116
) Limited                                                
                                                         
HSBC Global Custody Nominees    A/c 2456820        52,198
(UK) Ltd                                                 
                                                         
Chase Nominees Ltd              A/c 75102         108,563
                                                         
Littledown Nominees Ltd         A/c 76588          41,901
                                                         
Harewood Nominees Ltd           A/c 1040411926G 1,561,186
                                                         
Vidacos Nominees Ltd            A/c 6012918307    265,213
                                                         
HSBC Global Custody Nominee     A/c 847452        368,200
(UK) Limited                                             
                                                         
HSBC Global Custody Nominee     A/c 740190        185,817
(UK) Limited                                             
                                                         
HSBC Global Custody Nominee     A/c 739874        721,278
(UK) Limited                                             
                                                         
HSBC Global Custody Nominee     A/c 740311         90,354
(UK) Limited                                             
                                                         
The Bank Of New York ( Nominees A/c PTG 15303 /    71,106
) Limited                       09997799                 
                                                         
HSBC Global Custody Nominee     A/c 811056         45,326
(UK) Limited                                             
                                                         
Chase Nominees Ltd              A/c 44729          28,420
                                                         
Nortrust Nominees LTD           A/c BBH05         181,397
                                                         
Littledown Nominees Ltd         A/c 81587         106,538
                                                         
William & Glyns (Isle of Man)   A/c 301780         75,855
Nominees Ltd                                             
                                                         
Littledown Nominees Ltd         A/c ZLA03       6,604,282
                                                         
The Bank Of New York ( Nominees A/c 52266          42,053
) Limited                                                
                                                         
The Bank Of New York ( Nominees A/c 52286          17,962
) Limited                                                
                                                         
Littledown Nominees Ltd         A/c 07198         289,566
                                                         
Littledown Nominees Ltd         A/c 27642          44,306
                                                         
Littledown Nominees Ltd         A/c ZLA09          14,557
                                                         
Littledown Nominees Ltd         A/c 10479           7,387
                                                         
Littledown Nominees Ltd         A/c ZLA12         320,233
                                                         
Littledown Nominees Ltd         A/c ZLA14          83,502
                                                         
Littledown Nominees Ltd         A/c 07207         487,203
                                                         
Littledown Nominees Ltd         A/c 07196          35,303
                                                         
Mellon Nominees (UK) Ltd        A/c WWSF0004002   358,179
                                                         
Littledown Nominees Ltd         A/c 18668         263,800
                                                         
Littledown Nominees Ltd         A/c 10491       2,162,581
                                                         
Littledown Nominees Ltd         A/c 10488       1,599,706
                                                         
Littledown Nominees Ltd         A/c 10489         420,254
                                                         
Littledown Nominees Ltd         A/c 30337          50,225
                                                         
Littledown Nominees Ltd         A/c ZLA15       1,078,629

14. Contact name

STACEY DRYBURGH, THREADNEEDLE GROUP

15. Contact telephone number

01793 363751

Notification authorised by:

 

ROBBIE M B BROWN, COMPANY SECRETARY

5 APRIL 2013