Form 8.3 TRITAX BIG BOX REIT PLC

FORM 8.3

PUBLIC OPENING POSITION DISCLOSURE/DEALING DISCLOSURE BY

A PERSON WITH INTERESTS IN RELEVANT SECURITIES REPRESENTING 1% OR

MORE

Rule 8.3 of the Takeover Code (the "Code")

1.

KEY INFORMATION

(a)

Full name of discloser:

Barclays PLC.

(b)

Owner or controller of interest and short

positions disclosed, if different from 1(a):

(c)

Name of offeror/offeree in relation to whose

TRITAX BIG BOX REIT PLC

relevant securities this form relates:

(d)

If an exempt fund manager connected with an

offeror/offeree, state this and specify identity of

offeror/offeree:

(e)

Date position held/dealing undertaken:

31 Jul 2025

(f)

In addition to the company in 1(c) above, is the discloser making

YES:

disclosures in respect of any other party to the offer?

WAREHOUSE REIT PLC

2.

POSITIONS OF THE PERSON MAKING THE DISCLOSURE

(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:

1p ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1)

Relevant securities owned

and/or controlled:

14,832,078

0.60%

12,226,344

0.49%

(2)

Cash-settled derivatives:

and/or controlled:

10,512,240

0.42%

13,458,936

0.54%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

25,344,318

1.02%

25,685,280

1.04%

(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

Number of

Price per unit

security

securities

1p ordinary

Purchase

356,974

1.4130 GBP

1p ordinary

Purchase

138,137

1.4132 GBP

1p ordinary

Purchase

67,254

1.4176 GBP

1p ordinary

Purchase

33,474

1.4180 GBP

1p ordinary

Purchase

20,694

1.4129 GBP

1p ordinary

Purchase

20,492

1.4177 GBP

1p ordinary

Purchase

20,317

1.4164 GBP

1p ordinary

Purchase

12,164

1.4194 GBP

1p ordinary

Purchase

11,839

1.4172 GBP

1p ordinary

Purchase

11,644

1.4165 GBP

1p ordinary

Purchase

10,481

1.4166 GBP

1p ordinary

Purchase

6,997

1.4182 GBP

1p ordinary

Purchase

6,953

1.4150 GBP

1p ordinary

Purchase

6,791

1.4204 GBP

1p ordinary

Purchase

6,649

1.4153 GBP

1p ordinary

Purchase

5,379

1.4140 GBP

1p ordinary

Purchase

4,054

1.4230 GBP

1p ordinary

Purchase

3,778

1.4190 GBP

1p ordinary

Purchase

2,428

1.4171 GBP

1p ordinary

Purchase

1,730

1.4240 GBP

1p ordinary

Purchase

1,208

1.4110 GBP

1p ordinary

Purchase

850

1.4160 GBP

1p ordinary

Purchase

594

1.4125 GBP

1p ordinary

Purchase

521

1.4170 GBP

1p ordinary

Purchase

418

1.4120 GBP

1p ordinary

Purchase

403

1.4210 GBP

1p ordinary

Purchase

350

1.4100 GBP

1p ordinary

Purchase

61

1.4135 GBP

1p ordinary

Purchase

1

1.4155 GBP

1p ordinary

Sale

417,463

1.4130 GBP

1p ordinary

Sale

42,042

1.4173 GBP

1p ordinary

Sale

39,129

1.4138 GBP

1p ordinary

Sale

28,240

1.4129 GBP

1p ordinary

Sale

16,746

1.4140 GBP

1p ordinary

Sale

15,712

1.4176 GBP

1p ordinary

Sale

8,225

1.4169 GBP

1p ordinary

Sale

6,624

1.4071 GBP

1p ordinary

Sale

5,274

1.4150 GBP

1p ordinary

Sale

5,066

1.4151 GBP

1p ordinary

Sale

4,407

1.4070 GBP

1p ordinary

Sale

3,778

1.4190 GBP

1p ordinary

Sale

3,704

1.4180 GBP

1p ordinary

Sale

2,978

1.4080 GBP

1p ordinary

Sale

2,707

1.4170 GBP

1p ordinary

Sale

2,510

1.4230 GBP

1p ordinary

Sale

2,161

1.4125 GBP

1p ordinary

Sale

1,901

1.4187 GBP

1p ordinary

Sale

1,730

1.4240 GBP

1p ordinary

Sale

1,626

1.4165 GBP

1p ordinary

Sale

1,335

1.4205 GBP

1p ordinary

Sale

1,208

1.4110 GBP

1p ordinary

Sale

850

1.4160 GBP

1p ordinary

Sale

418

1.4120 GBP

1p ordinary

Sale

403

1.4210 GBP

1p ordinary

Sale

350

1.4100 GBP

1p ordinary

Sale

303

1.4182 GBP

1p ordinary

Sale

61

1.4135 GBP

1p ordinary

Sale

1

1.4155 GBP

1p ordinary

Sale

1

1.4000 GBP

(b)

Cash-settled derivative transactions

Class of

Product

Nature of dealing

Number of

Price per

relevant

description

reference

unit

security

securities

1p ordinary

SWAP

Decreasing Short

6,624

1.4071 GBP

1p ordinary

SWAP

Decreasing Short

1,567

1.4125 GBP

1p ordinary

SWAP

Decreasing Short

28,240

1.4129 GBP

1p ordinary

SWAP

Decreasing Short

205,389

1.4130 GBP

1p ordinary

SWAP

Decreasing Short

1,769

1.4139 GBP

1p ordinary

SWAP

Decreasing Short

14,614

1.4140 GBP

1p ordinary

SWAP

Decreasing Short

395

1.4144 GBP

1p ordinary

SWAP

Decreasing Short

469

1.4147 GBP

1p ordinary

SWAP

Decreasing Short

174

1.4150 GBP

1p ordinary

SWAP

Decreasing Short

8,667

1.4155 GBP

1p ordinary

SWAP

Decreasing Short

99

1.4158 GBP

1p ordinary

SWAP

Decreasing Short

8,225

1.4169 GBP

1p ordinary

SWAP

Decreasing Short

2,186

1.4170 GBP

1p ordinary

SWAP

Increasing Short

24,271

1.4129 GBP

1p ordinary

SWAP

Increasing Short

39,819

1.4130 GBP

1p ordinary

SWAP

Increasing Short

4,806

1.4132 GBP

1p ordinary

SWAP

Increasing Short

9,927

1.4140 GBP

1p ordinary

SWAP

Increasing Short

9,618

1.4162 GBP

1p ordinary

SWAP

Increasing Short

20,430

1.4164 GBP

1p ordinary

SWAP

Increasing Short

28,068

1.4167 GBP

1p ordinary

SWAP

Increasing Short

82,298

1.4170 GBP

1p ordinary

SWAP

Increasing Short

2,428

1.4171 GBP

1p ordinary

SWAP

Increasing Short

18,836

1.4173 GBP

1p ordinary

SWAP

Increasing Short

2,707

1.4177 GBP

1p ordinary

SWAP

Increasing Short

42,174

1.4180 GBP

1p ordinary

CFD

Decreasing Short

111,772

1.4130 GBP

1p ordinary

CFD

Decreasing Short

39,129

1.4138 GBP

1p ordinary

CFD

Decreasing Short

12,605

1.4196 GBP

1p ordinary

CFD

Increasing Short

138,737

1.4129 GBP

1p ordinary

CFD

Increasing Short

111,772

1.4130 GBP

1p ordinary

CFD

Increasing Short

27,283

1.4131 GBP

1p ordinary

CFD

Increasing Short

8,227

1.4150 GBP

1p ordinary

CFD

Increasing Short

12,164

1.4194 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 person 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?

YES

Date of disclosure:

01 Aug 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213