Big Yellow Regulatory News (BYG)

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:

30 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:

672,041

0.34%

243,043

0.12%

(2)

Cash-settled derivatives:

and/or controlled:

144,093

0.07%

588,630

0.30%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

816,134

0.41%

831,673

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

231,203

11.3200 GBP

11.1200 GBP

10p ordinary

Sale

152,548

11.3200 GBP

11.1200 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

Decreasing Short

2,018

11.1467 GBP

10p ordinary

SWAP

Decreasing Short

192

11.2000 GBP

10p ordinary

SWAP

Decreasing Short

5,132

11.2039 GBP

10p ordinary

SWAP

Decreasing Short

600

11.2192 GBP

10p ordinary

SWAP

Decreasing Short

1,996

11.2194 GBP

10p ordinary

SWAP

Decreasing Short

256

11.2200 GBP

10p ordinary

SWAP

Decreasing Short

1,233

11.2255 GBP

10p ordinary

SWAP

Decreasing Short

34

11.2391 GBP

10p ordinary

SWAP

Decreasing Short

1,082

11.2400 GBP

10p ordinary

SWAP

Increasing Short

982

11.1800 GBP

10p ordinary

SWAP

Increasing Short

800

11.1907 GBP

10p ordinary

SWAP

Increasing Short

585

11.2000 GBP

10p ordinary

SWAP

Increasing Short

813

11.2019 GBP

10p ordinary

SWAP

Increasing Short

466

11.2050 GBP

10p ordinary

SWAP

Increasing Short

7,897

11.2056 GBP

10p ordinary

SWAP

Increasing Short

15,338

11.2115 GBP

10p ordinary

SWAP

Increasing Short

1,058

11.2139 GBP

10p ordinary

SWAP

Increasing Short

45,270

11.2200 GBP

10p ordinary

SWAP

Increasing Short

12,022

11.2211 GBP

10p ordinary

SWAP

Increasing Short

739

11.2251 GBP

10p ordinary

SWAP

Increasing Short

100

11.3000 GBP

10p ordinary

SWAP

Increasing Short

53

11.3001 GBP

10p ordinary

SWAP

Increasing Short

68

11.3002 GBP

10p ordinary

SWAP

Increasing Short

37

11.3200 GBP

10p ordinary

CFD

Increasing Long

917

11.2215 GBP

10p ordinary

CFD

Increasing Long

679

11.2519 GBP

10p ordinary

CFD

Decreasing Long

2,932

11.2210 GBP

10p ordinary

CFD

Decreasing Long

470

11.2340 GBP

10p ordinary

CFD

Decreasing Long

4,039

11.2399 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:

31 Oct 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213