Cairn Homes Plc: Holding(s) in Company

NOTIFICATION OF MAJOR HOLDINGS (to be sent to the relevant issuer and to the Central Bank of Ireland)i

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

Cairn Homes PLC

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

[X] An acquisition or disposal of voting rights

[ ] An acquisition or disposal of financial instruments

[ ] An event changing the breakdown of voting rights

[] Other (please specify)iii:

3. Details of person subject to the notification obligationiv :

Name:  Regal Partners (RE) Limited (Formerly: PM Capital Ltd) (ABN 69 083 644 731, AFSL No. 230222)

City and country of registered office (if applicable):

Sydney, Australia

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

Custodial Accounts:

• Morgan Stanley International plc
• Goldman Sachs International (London)

5. Date on which the threshold was crossed or reachedvi:  17 June 2026

6. Date on which issuer notified:  18 June 2026

7. Threshold(s) that is/are crossed or reached:  4%

8. Total positions of person(s) subject to the notification obligation:

% of voting rights attached to shares (total of 9.A)

% of voting rights through financial instruments
(total of 9.B.1 + 9.B.2)

Total of both in % (9.A + 9.B)

Total number of voting rights of issuervii

Resulting situation on the date on which threshold was crossed or reached

4.158%

4.158%

629,002,530

Position of previous notification (if applicable)

N/a

N/a

10. Information in relation to the person subject to the notification obligation (please tick the applicable box):

[ ] Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer.xiii

[X] Full chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held starting with the ultimate controlling natural person or legal entityxiv:

Namexv

% of voting rights if it equals or is higher than the notifiable threshold

% of voting rights through financial instruments if it equals or is higher than the notifiable threshold

Total of both if it equals or is higher than the notifiable threshold

PM Capital Global Companies Fund (LEI: 549300G9AAH2W5NCIP82)

2.311%

2.311%

PM Capital Long Term Investment Fund (LEI (54930059B7OMDRH08D22)

0.351%

0.351%

PM Capital Global Opportunities Fund Ltd (LEI: 5493002RXP07KPHL2B32)

1.152%

1.152%

Colonial First State Investments Ltd (ACN 002 348 352) as trustee for Commonwealth Specialist Fund 11 (LEI: 5493005W2U5Q75KEGB51)

0.345%

0.345%

11. In case of proxy voting: [name of the proxy holder] will cease to hold [% and number] voting rights as of [date]

N/A

12. Additional informationxvi: