COSTAIN GROUP PLC — Director's Dealing 2026

May 22, 2026

National Storage Mechanism | Additional information

RNS Number : 4949F

Costain Group PLC

22 May 2026

 

Costain Group PLC

(the 'Company' or 'Costain')

LEI: 213800PKIJBZ2EDTKC88

22 May 2026

GRANT OF SHARE PLAN AWARDS

Costain announces the following grants of share awards to its Executive Directors, Alex Vaughan, Chief Executive Officer, and Helen Willis, Chief Financial Officer.

LONG TERM INCENTIVE AWARDS

On 22 May 2026, awards have been granted under the Costain 2023 Long Term Incentive Plan (the 'LTIP') over ordinary shares in the Company in the form of nil-cost options (the 'LTIP Awards'). An LTIP Award was granted to Alex Vaughan over 359,643 shares and to Helen Willis over 301,565 shares, each representing 125% of salary. No consideration was paid for the grant of the LTIP Awards.

The LTIP Awards will normally vest on 10 April 2029, subject to the satisfaction of performance conditions as detailed in the Directors' Remuneration Report, within the Company's Annual Report for the year ended 31 December 2025. The LTIP Awards for the Executive Directors will be subject to a further two-year holding period, after which the LTIP Awards will become exercisable and will remain exercisable until the tenth anniversary of the grant date (with no further performance conditions required after vesting).

The Company's Remuneration Committee will determine the extent to which the performance conditions have been satisfied over the three financial years ending 31 December 2028.

The Notification of Dealing Forms for the LTIP Awards, set out further below, are provided in accordance with the requirements of the UK Market Abuse Regulation.

Enquiries

Costain                                                                       [email protected]

Matt Jones, Costain                                                    +44 (0) 7860 922 341

Company Secretariat                                               [email protected]

Katie Mullins, Costain                                                 +44 (0)20 3922 0600

Cyd Trumper, Costain                       

Financial media - Headland                                    [email protected]

Andy Rivett-Carnac                                                    +44 (0) 7968 997 365

Charlie Twigg                                                              +44 (0) 7946 494 568

Notification of Dealing Forms

1.

Details of the Person Discharging Managerial Responsibility ("PDMR") / person closely associated with them ("PCA")

a)

Name

ALEXANDER JOHN VAUGHAN

2.

Reason for the notification

a)

Position /status

CHIEF EXECUTIVE OFFICER/PDMR

b)

Initial notification / amendment

INITIAL NOTIFICATION

3.

Details of the Issuer

a)

Name

COSTAIN GROUP PLC

b)

LEI code

213800PKIJBZ2EDTKC88

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 1 PENCE EACH

ISIN:  GB00B64NSP76

b)

Nature of the transaction

GRANT OF AN OPTION UNDER THE COSTAIN 2023 LONG TERM INCENTIVE PLAN (2026 LTIP Grant)

c)

Price(s) and volume(s)

Price(s)	Volume(s)
Nil cost	359,643

d)

Aggregated information

-  Aggregated volume

-  Price

N/A

e)

Date of the transaction

22 MAY 2026

f)

Place of the transaction

OUTSIDE A TRADING VENUE

1.

Details of the Person Discharging Managerial Responsibility ("PDMR") / person closely associated with them ("PCA")

a)

Name

HELEN MARGARET WILLIS

2.

Reason for the notification

a)

Position /status

CHIEF FINANCIAL OFFICER/PDMR

b)

Initial notification / amendment

INITIAL NOTIFICATION

3.

Details of the Issuer

a)

Name

COSTAIN GROUP PLC

b)

LEI code

213800PKIJBZ2EDTKC88

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 1 PENCE EACH

ISIN:  GB00B64NSP76

b)

Nature of the transaction

GRANT OF AN OPTION UNDER THE COSTAIN 2023 LONG TERM INCENTIVE PLAN (2026 LTIP Grant)

c)

Price(s) and volume(s)

Price(s)	Volume(s)
Nil cost	301,565

d)

Aggregated information

-  Aggregated volume

-  Price

N/A

e)

Date of the transaction

22 MAY 2026

f)

Place of the transaction

OUTSIDE A TRADING VENUE

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