Form 8.5 EPT/Non RI BIG YELLOW GROUP PLC

FORM 8.5 (EPT/NON-RI)

PUBLIC OPENING POSITION DISCLOSURE/DEALING DISCLOSURE BY AN

EXEMPT PRINCIPAL TRADER WITHOUT RECOGNISED INTERMEDIARY ("RI") STATUS

(OR WHERE RI STATUS IS NOT APPLICABLE)

Rule 8.5 of the Takeover Code (the "Code")

1.

KEY INFORMATION

(a)

Name of exempt principal trader:

BARCLAYS CAPITAL SECURITIES LTD

(b)

Name of offeror/offeree in relation to whose

BIG YELLOW GROUP PLC

relevant securities this form relates:

(c)

Name of the party to the offer with which exempt

BIG YELLOW GROUP PLC

principal trader is connected

(d)

Date position held/dealing undertaken:

14 Oct 2025

(e)

In addition to the company in 1(b) above, is the exempt principal

NO

trader making disclosures in respect of any other party to the offer?

2.

POSITIONS OF THE EXEMPT PRINCIPAL TRADER

(a)

Interests and short positions in the relevant securities of the offeror or offeree

to which the disclosure relates following the dealing (if any)

Class of relevant security:

10p ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1)

Relevant securities owned

and/or controlled:

680,369

0.35%

218,798

0.11%

(2)

Cash-settled derivatives:

and/or controlled:

85,553

0.04%

600,690

0.31%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

765,922

0.39%

819,488

0.42%

(b)

Rights to subscribe for new securities (including directors and other executive

options)

Class of relevant security in relation to

which subscription right exists

Details, including nature of the rights

concerned and relevant percentages:

3.

DEALINGS (IF ANY) BY THE EXEMPT PRINCIPAL TRADER

(a)

Purchases and sales

Class of relevant

Purchase/sale

Total number of

Highest price per unit

Lowest price per unit

security

securities

paid/received

paid/received

10p ordinary

Purchase

271,087

11.3400 GBP

11.0800 GBP

10p ordinary

Sale

413,352

11.3000 GBP

11.0800 GBP

(b)

Cash-settled derivative transactions

Class of

Product

Nature of dealing

Number of

Price per

relevant

description

reference

unit

security

securities

10p ordinary

SWAP

Opening Long

79

11.0800 GBP

10p ordinary

SWAP

Increasing Long

100

11.1398 GBP

10p ordinary

SWAP

Increasing Long

3,614

11.1477 GBP

10p ordinary

SWAP

Increasing Long

574

11.1556 GBP

10p ordinary

SWAP

Increasing Long

1,557

11.1589 GBP

10p ordinary

SWAP

Increasing Long

578

11.1602 GBP

10p ordinary

SWAP

Increasing Long

41,022

11.1636 GBP

10p ordinary

SWAP

Increasing Long

2,571

11.1639 GBP

10p ordinary

SWAP

Increasing Long

6,576

11.1679 GBP

10p ordinary

SWAP

Increasing Long

26,431

11.1729 GBP

10p ordinary

SWAP

Increasing Long

379

11.1736 GBP

10p ordinary

SWAP

Increasing Long

5,397

11.1790 GBP

10p ordinary

SWAP

Increasing Long

6,652

11.1825 GBP

10p ordinary

SWAP

Increasing Long

3,342

11.2018 GBP

10p ordinary

SWAP

Increasing Long

232

11.2326 GBP

10p ordinary

SWAP

Increasing Long

5,501

11.2541 GBP

10p ordinary

SWAP

Increasing Long

522

11.2665 GBP

10p ordinary

SWAP

Increasing Long

10,343

11.2956 GBP

10p ordinary

SWAP

Increasing Long

448

11.2992 GBP

10p ordinary

SWAP

Increasing Long

162,013

11.3000 GBP

10p ordinary

SWAP

Decreasing Long

103

11.0800 GBP

10p ordinary

SWAP

Decreasing Long

552

11.1000 GBP

10p ordinary

SWAP

Decreasing Long

34

11.1201 GBP

10p ordinary

SWAP

Decreasing Long

659

11.1217 GBP

10p ordinary

SWAP

Decreasing Long

1,400

11.1441 GBP

10p ordinary

SWAP

Decreasing Long

1,379

11.1900 GBP

10p ordinary

SWAP

Decreasing Long

11,463

11.2085 GBP

10p ordinary

SWAP

Decreasing Long

52,000

11.2136 GBP

10p ordinary

SWAP

Decreasing Long

218

11.2379 GBP

10p ordinary

SWAP

Decreasing Long

25,405

11.3000 GBP

10p ordinary

SWAP

Decreasing Long

2,230

11.3001 GBP

10p ordinary

SWAP

Decreasing Long

4,482

11.3005 GBP

10p ordinary

CFD

Opening Long

948

11.1204 GBP

10p ordinary

CFD

Increasing Long

8,132

11.1500 GBP

10p ordinary

CFD

Increasing Long

771

11.2996 GBP

10p ordinary

CFD

Decreasing Long

356

11.1206 GBP

10p ordinary

CFD

Decreasing Long

4

11.3000 GBP

(c)

Stock-settled derivative transactions (including options)

(i)

Writing, selling, purchasing or varying

Class

Product

Writing,

Number

Exercise

Type

Expiry

Option

of

description

purchasing,

of

price

date

money

relevant

selling,

securities

per unit

paid/

security

varying etc

to which

received

option

per unit

relates

(ii)

Exercising

Class of relevant

Product description

Exercising/ exercised against

Number of

Exercise price per

security

securities

unit

(d)

Other dealings (including subscribing for new securities)

Class of relevant

Nature of Dealings

Details

Price per unit (if

security

applicable)

4.

OTHER INFORMATION

(a)

Indemnity and other dealings arrangements

Details of any indemnity or option arrangement, or any agreement or understanding,

formal or informal, relating to relevant securities which may be an inducement to deal

or refrain from dealing entered into by the exempt principal trader making the disclosure and any party

to the offer or any person acting in concert with a party to the offer:

NONE

(b)

Agreements, arrangements or understandings relating to options or derivatives

Details of any agreement, arrangement or understanding, formal or informal, between

the exempt principal trader making the disclosure and any other person relating to:

(i) the voting rights of any relevant securities under any option; or

(ii) the voting rights of future acquisition or disposal of any relevant securities to which

any derivative is referenced:

NONE

(c)

Attachments

Is a Supplemental Form 8 (Open Positions) attached?

NO

Date of disclosure:

15 Oct 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213