Holding(s) in Company

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

John Laing Group plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

Voting rights held following admission

X

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

Henderson Global Investors

4. Full name of shareholder(s)

(if different from 3.): iv

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

19 February 2015

6. Date on which issuer notified:

23 February 2015

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

reached: vi, vii

Above 61% (please refer to section 13)

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

Ordinary

GB00BVC3CB8

N/A

N/A

224,897,437

61.29%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/ConversionPeriod xiv

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exerciseprice

Expirationdate xvii

Exercise/Conversionperiod xviii

Number of votingrights instrumentrefers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

 224,897,437

 61.29%

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

Henderson Equity Partners Limited 219,897,437 59.93%

Henderson Global Investors Limited 5,000,000 1.36%

Proxy Voting:

10. Name of the proxy holder:

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

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

13. Additional information:

 Please refer to page 86 of the John Laing prospectus which sets out the arrangements pursuant to which Henderson funds were expected to retain between 39.9% and 69.9% of John Laing Group plc.

This disclosure has been calculated based on total voting rights in issue amount of 366,923,076.

14. Contact name:

 Carolyn Cattermole

15. Contact telephone number:

 +44 (0)20 7901 3224