Holding(s) in Company

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

John Laing Group plc

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

An acquisition or disposal of voting rights

X

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):

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

Henderson Global Investors

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

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

1 October 2015

6. Date on which issuer notified:

7 October 2015

7. Threshold(s) that is/are crossed orreached: vi, vii

From 66% to 8% (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

235,291,044

235,291,044

17,508,671

14,735,039

4.77%

4.01%

GB00BVC3CB8

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period 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

Exercise price

Expiration date xvii

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

32,243,710

8.79%

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

Henderson Equity Partners Limited - below 5%

Henderson Global Investors Limited - below 5%

Henderson Equity Partners (GP) Limited - below 5%

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:

The shares held by Henderson Equity Partners Limited referred to in section 9 are held on behalf of remaining investors in Henderson PFI Secondary Fund L.P. and Henderson PFI Secondary Fund II L.P.

The shares held by Henderson Global Investors Limited referred to in section 9 are held in portfolios managed on a discretionary basis for clients under investment management agreements.

The shares held by Henderson Equity Partners (GP) Limited referred to in section 9 are proprietary holdings.

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:

020 7901 3224