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:

17 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:

636,500

0.32%

231,868

0.12%

(2)

Cash-settled derivatives:

and/or controlled:

111,481

0.06%

553,589

0.28%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

747,981

0.38%

785,457

0.40%

(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

138,770

11.2000 GBP

11.1206 GBP

10p ordinary

Sale

126,084

11.2314 GBP

11.1400 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

3,374

11.1689 GBP

10p ordinary

SWAP

Decreasing Short

284

11.1528 GBP

10p ordinary

SWAP

Decreasing Short

105

11.1598 GBP

10p ordinary

SWAP

Decreasing Short

510

11.1664 GBP

10p ordinary

SWAP

Decreasing Short

1,198

11.1670 GBP

10p ordinary

SWAP

Decreasing Short

15,590

11.1719 GBP

10p ordinary

SWAP

Decreasing Short

5,159

11.1720 GBP

10p ordinary

SWAP

Decreasing Short

4,079

11.1723 GBP

10p ordinary

SWAP

Decreasing Short

2,057

11.1726 GBP

10p ordinary

SWAP

Decreasing Short

268

11.1778 GBP

10p ordinary

SWAP

Decreasing Short

724

11.1789 GBP

10p ordinary

SWAP

Decreasing Short

433

11.1793 GBP

10p ordinary

SWAP

Decreasing Short

3,025

11.1794 GBP

10p ordinary

SWAP

Decreasing Short

28,119

11.1800 GBP

10p ordinary

SWAP

Decreasing Short

787

11.1806 GBP

10p ordinary

SWAP

Decreasing Short

452

11.1810 GBP

10p ordinary

SWAP

Decreasing Short

10

11.1900 GBP

10p ordinary

SWAP

Decreasing Short

1,011

11.2151 GBP

10p ordinary

SWAP

Decreasing Short

6

11.2200 GBP

10p ordinary

SWAP

Increasing Short

199

11.1200 GBP

10p ordinary

SWAP

Increasing Short

500

11.1207 GBP

10p ordinary

SWAP

Increasing Short

893

11.1558 GBP

10p ordinary

SWAP

Increasing Short

1,281

11.1639 GBP

10p ordinary

SWAP

Increasing Short

7,102

11.1661 GBP

10p ordinary

SWAP

Increasing Short

670

11.1682 GBP

10p ordinary

SWAP

Increasing Short

21,447

11.1800 GBP

10p ordinary

SWAP

Increasing Short

7,626

11.1805 GBP

10p ordinary

SWAP

Increasing Short

1,500

11.1807 GBP

10p ordinary

SWAP

Increasing Short

6,181

11.1813 GBP

10p ordinary

SWAP

Increasing Short

1,960

11.1822 GBP

10p ordinary

SWAP

Increasing Short

5,773

11.1932 GBP

10p ordinary

SWAP

Increasing Short

21,920

11.2000 GBP

10p ordinary

CFD

Increasing Long

309

11.1715 GBP

10p ordinary

CFD

Decreasing Long

1,968

11.1782 GBP

10p ordinary

CFD

Decreasing Long

190

11.2006 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:

20 Oct 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213