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:

21 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:

523,107

0.27%

246,926

0.13%

(2)

Cash-settled derivatives:

and/or controlled:

147,368

0.07%

439,314

0.22%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

670,475

0.34%

686,240

0.35%

(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

104,661

11.8000 GBP

11.4600 GBP

10p ordinary

Sale

127,272

11.8000 GBP

11.4600 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

Increasing Long

3,780

11.6628 GBP

10p ordinary

SWAP

Decreasing Short

201

11.5000 GBP

10p ordinary

SWAP

Decreasing Short

282

11.5054 GBP

10p ordinary

SWAP

Decreasing Short

651

11.5698 GBP

10p ordinary

SWAP

Decreasing Short

987

11.5943 GBP

10p ordinary

SWAP

Decreasing Short

410

11.6076 GBP

10p ordinary

SWAP

Decreasing Short

2,899

11.6200 GBP

10p ordinary

SWAP

Decreasing Short

999

11.6343 GBP

10p ordinary

SWAP

Decreasing Short

6,650

11.6363 GBP

10p ordinary

SWAP

Decreasing Short

1,777

11.6370 GBP

10p ordinary

SWAP

Decreasing Short

9,482

11.6402 GBP

10p ordinary

SWAP

Decreasing Short

186

11.6430 GBP

10p ordinary

SWAP

Decreasing Short

206

11.6439 GBP

10p ordinary

SWAP

Decreasing Short

2,869

11.6818 GBP

10p ordinary

SWAP

Decreasing Short

8,358

11.6869 GBP

10p ordinary

SWAP

Decreasing Short

3,500

11.7144 GBP

10p ordinary

SWAP

Decreasing Short

520

11.7226 GBP

10p ordinary

SWAP

Decreasing Short

734

11.7335 GBP

10p ordinary

SWAP

Decreasing Short

1,079

11.7524 GBP

10p ordinary

SWAP

Decreasing Short

42

11.7547 GBP

10p ordinary

SWAP

Decreasing Short

4,415

11.7594 GBP

10p ordinary

SWAP

Decreasing Short

20,016

11.7599 GBP

10p ordinary

SWAP

Decreasing Short

16,976

11.7600 GBP

10p ordinary

SWAP

Decreasing Short

256

11.7623 GBP

10p ordinary

SWAP

Increasing Short

247

11.4800 GBP

10p ordinary

SWAP

Increasing Short

114

11.4900 GBP

10p ordinary

SWAP

Increasing Short

152

11.4966 GBP

10p ordinary

SWAP

Increasing Short

59

11.4984 GBP

10p ordinary

SWAP

Increasing Short

27,286

11.5000 GBP

10p ordinary

SWAP

Increasing Short

19

11.5100 GBP

10p ordinary

SWAP

Increasing Short

401

11.5200 GBP

10p ordinary

SWAP

Increasing Short

198

11.5369 GBP

10p ordinary

SWAP

Increasing Short

118

11.5400 GBP

10p ordinary

SWAP

Increasing Short

76

11.5452 GBP

10p ordinary

SWAP

Increasing Short

641

11.5489 GBP

10p ordinary

SWAP

Increasing Short

652

11.6004 GBP

10p ordinary

SWAP

Increasing Short

7,638

11.7336 GBP

10p ordinary

SWAP

Increasing Short

23,567

11.7600 GBP

10p ordinary

SWAP

Increasing Short

275

11.7601 GBP

10p ordinary

SWAP

Increasing Short

7,885

11.7605 GBP

10p ordinary

CFD

Increasing Long

484

11.5945 GBP

10p ordinary

CFD

Increasing Long

21,366

11.6574 GBP

10p ordinary

CFD

Increasing Long

6,345

11.7172 GBP

10p ordinary

CFD

Decreasing Long

442

11.4806 GBP

10p ordinary

CFD

Decreasing Long

1,238

11.6066 GBP

10p ordinary

CFD

Decreasing Long

12,069

11.6106 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:

22 Oct 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213