Director/PDMR Shareholding

1

Details of the person discharging managerial responsibilities/person closely associated

a)

Name

STEPHEN CHARLES BIRD

2

Reason for the notification

a)

Position/status

MANAGING DIRECTOR, SOUTH WEST WATER

b)

Initial notification/Amendment

INITIAL NOTIFICATION

3

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Name

PENNON GROUP PLC

b)

LEI

213800V1CCTS41GWH423

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument, type of instrument

Identification code

ORDINARY SHARES OF 40.7p EACH

GB00B18V8630

b)

Nature of the transaction

GROSS VESTING OF SHARES PURSUANT TO THE PENNON GROUP ANNUAL INCENTIVE BONUS PLAN - DEFERRED ELEMENT (THE 'PLAN') FOLLOWING THE END OF THE END OF THE 3 YEAR RESTRICTED PERIOD. A PROPORTION OF THE VESTED SHARES HAVE BEEN SOLD BY THE SHARE PLANS TRUSTEE TO MEET THE INCOME TAX AND NATIONAL INSURANCE LIABILITIES OF THE PERSON NAMED IN 1(a) ABOVE.

c)

Price(s) and volume(s)

d)

Aggregated information

- Volume

- Price

- Total

7,318 SHARES

£7.4008p*

£54,159.05

* vesting / sale price

e)

Date of the transaction

3 AUGUST 2018

f)

Place of the transaction

London Stock Exchange (XLON)

1

Details of the person discharging managerial responsibilities/person closely associated

a)

Name

SUSAN JANE DAVY

2

Reason for the notification

a)

Position/status

CHIEF FINANCIAL OFFICER

b)

Initial notification/Amendment

INITIAL NOTIFICATION

3

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Name

PENNON GROUP PLC

b)

LEI

213800V1CCTS41GWH423

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument, type of instrument

Identification code

ORDINARY SHARES OF 40.7p EACH

GB00B18V8630

b)

Nature of the transaction

GROSS VESTING OF SHARES PURSUANT TO THE PENNON GROUP ANNUAL INCENTIVE BONUS PLAN - DEFERRED ELEMENT (THE 'PLAN') FOLLOWING THE END OF THE END OF THE 3 YEAR RESTRICTED PERIOD. A PROPORTION OF THE VESTED SHARES HAVE BEEN SOLD BY THE SHARE PLANS TRUSTEE TO MEET THE INCOME TAX AND NATIONAL INSURANCE LIABILITIES OF THE PERSON NAMED IN 1(a) ABOVE.

c)

Price(s) and volume(s)

d)

Aggregated information

- Volume

- Price

- Total

9,809 SHARES

£7.4008p*

£72,594.45

* vesting / sale price

e)

Date of the transaction

3 AUGUST 2018

f)

Place of the transaction

London Stock Exchange (XLON)

1

Details of the person discharging managerial responsibilities/person closely associated

a)

Name

CHRISTOPHER LOUGHLIN

2

Reason for the notification

a)

Position/status

GROUP CHIEF EXECUTIVE OFFICER

b)

Initial notification/Amendment

INITIAL NOTIFICATION

3

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Name

PENNON GROUP PLC

b)

LEI

213800V1CCTS41GWH423

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument, type of instrument

Identification code

ORDINARY SHARES OF 40.7p EACH

GB00B18V8630

b)

Nature of the transaction

GROSS VESTING OF SHARES PURSUANT TO THE PENNON GROUP ANNUAL INCENTIVE BONUS PLAN - DEFERRED ELEMENT (THE 'PLAN') FOLLOWING THE END OF THE END OF THE 3 YEAR RESTRICTED PERIOD. A PROPORTION OF THE VESTED SHARES HAVE BEEN SOLD BY THE SHARE PLANS TRUSTEE TO MEET THE INCOME TAX AND NATIONAL INSURANCE LIABILITIES OF THE PERSON NAMED IN 1(a) ABOVE.

c)

Price(s) and volume(s)

d)

Aggregated information

- Volume

- Price

- Total

19,124 SHARES

£7.4008p*

£141,532.90

* vesting / sale price

e)

Date of the transaction

3 AUGUST 2018

f)

Place of the transaction

London Stock Exchange (XLON)

1

Details of the person discharging managerial responsibilities/person closely associated

a)

Name

PAUL MICHAEL RINGHAM

2

Reason for the notification

a)

Position/status

COMMERCIAL DIRECTOR, VIRIDOR

b)

Initial notification/Amendment

INITIAL NOTIFICATION

3

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Name

PENNON GROUP PLC

b)

LEI

213800V1CCTS41GWH423

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument, type of instrument

Identification code

ORDINARY SHARES OF 40.7p EACH

GB00B18V8630

b)

Nature of the transaction

GROSS VESTING OF SHARES PURSUANT TO THE PENNON GROUP ANNUAL INCENTIVE BONUS PLAN - DEFERRED ELEMENT (THE 'PLAN') FOLLOWING THE END OF THE END OF THE 3 YEAR RESTRICTED PERIOD. A PROPORTION OF THE VESTED SHARES HAVE BEEN SOLD BY THE SHARE PLANS TRUSTEE TO MEET THE INCOME TAX AND NATIONAL INSURANCE LIABILITIES OF THE PERSON NAMED IN 1(a) ABOVE.

c)

Price(s) and volume(s)

d)

Aggregated information

- Volume

- Price

- Total

2,970 SHARES

£7.4008p*

£21,980.38

* vesting / sale price

e)

Date of the transaction

3 AUGUST 2018

f)

Place of the transaction

London Stock Exchange (XLON)

Name of authorised official of issuer responsible for making notification

KAREN SENIOR, DEPUTY COMPANY SECRETARY

Date of notification 3 AUGUST 2018