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:

10 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:

14,660,380

0.59%

10,210,905

0.41%

(2)

Cash-settled derivatives:

and/or controlled:

9,209,851

0.37%

13,219,960

0.53%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

23,870,231

0.96%

23,430,865

0.94%

(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

479,338

1.4320 GBP

1p ordinary

Purchase

184,876

1.4325 GBP

1p ordinary

Purchase

92,306

1.4321 GBP

1p ordinary

Purchase

90,118

1.4366 GBP

1p ordinary

Purchase

28,971

1.4350 GBP

1p ordinary

Purchase

17,148

1.4371 GBP

1p ordinary

Purchase

11,697

1.4357 GBP

1p ordinary

Purchase

10,130

1.4330 GBP

1p ordinary

Purchase

8,697

1.4362 GBP

1p ordinary

Purchase

8,095

1.4410 GBP

1p ordinary

Purchase

6,958

1.4364 GBP

1p ordinary

Purchase

6,280

1.4370 GBP

1p ordinary

Purchase

5,669

1.4390 GBP

1p ordinary

Purchase

5,546

1.4377 GBP

1p ordinary

Purchase

5,289

1.4360 GBP

1p ordinary

Purchase

5,155

1.4369 GBP

1p ordinary

Purchase

4,319

1.4355 GBP

1p ordinary

Purchase

3,983

1.4380 GBP

1p ordinary

Purchase

3,009

1.4361 GBP

1p ordinary

Purchase

2,834

1.4400 GBP

1p ordinary

Purchase

2,524

1.4322 GBP

1p ordinary

Purchase

1,011

1.4395 GBP

1p ordinary

Purchase

817

1.4427 GBP

1p ordinary

Purchase

727

1.4340 GBP

1p ordinary

Purchase

475

1.4387 GBP

1p ordinary

Purchase

297

1.4403 GBP

1p ordinary

Purchase

132

1.4385 GBP

1p ordinary

Purchase

79

1.4323 GBP

1p ordinary

Sale

274,704

1.4328 GBP

1p ordinary

Sale

201,809

1.4320 GBP

1p ordinary

Sale

156,992

1.4331 GBP

1p ordinary

Sale

116,556

1.4323 GBP

1p ordinary

Sale

40,228

1.4324 GBP

1p ordinary

Sale

31,114

1.4357 GBP

1p ordinary

Sale

28,936

1.4367 GBP

1p ordinary

Sale

23,555

1.4327 GBP

1p ordinary

Sale

19,626

1.4368 GBP

1p ordinary

Sale

14,727

1.4380 GBP

1p ordinary

Sale

10,700

1.4335 GBP

1p ordinary

Sale

10,028

1.4330 GBP

1p ordinary

Sale

8,133

1.4410 GBP

1p ordinary

Sale

7,378

1.4350 GBP

1p ordinary

Sale

7,266

1.4317 GBP

1p ordinary

Sale

5,584

1.4390 GBP

1p ordinary

Sale

5,500

1.4344 GBP

1p ordinary

Sale

5,287

1.4360 GBP

1p ordinary

Sale

4,319

1.4355 GBP

1p ordinary

Sale

2,945

1.4310 GBP

1p ordinary

Sale

2,392

1.4394 GBP

1p ordinary

Sale

1,798

1.4400 GBP

1p ordinary

Sale

1,507

1.4370 GBP

1p ordinary

Sale

1,011

1.4395 GBP

1p ordinary

Sale

681

1.4340 GBP

1p ordinary

Sale

475

1.4387 GBP

1p ordinary

Sale

202

1.4420 GBP

1p ordinary

Sale

200

1.4500 GBP

1p ordinary

Sale

132

1.4385 GBP

1p ordinary

Sale

17

1.4351 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

2,945

1.4310 GBP

1p ordinary

SWAP

Decreasing Short

144,878

1.4320 GBP

1p ordinary

SWAP

Decreasing Short

87,266

1.4321 GBP

1p ordinary

SWAP

Decreasing Short

40,228

1.4324 GBP

1p ordinary

SWAP

Decreasing Short

8,458

1.4329 GBP

1p ordinary

SWAP

Decreasing Short

156,992

1.4331 GBP

1p ordinary

SWAP

Decreasing Short

10,700

1.4335 GBP

1p ordinary

SWAP

Decreasing Short

5,500

1.4344 GBP

1p ordinary

SWAP

Decreasing Short

31,114

1.4357 GBP

1p ordinary

SWAP

Decreasing Short

1,028

1.4359 GBP

1p ordinary

SWAP

Decreasing Short

24,796

1.4363 GBP

1p ordinary

SWAP

Decreasing Short

4,811

1.4365 GBP

1p ordinary

SWAP

Decreasing Short

22,119

1.4372 GBP

1p ordinary

SWAP

Decreasing Short

1,798

1.4400 GBP

1p ordinary

SWAP

Increasing Short

273,919

1.4320 GBP

1p ordinary

SWAP

Increasing Short

2,603

1.4322 GBP

1p ordinary

SWAP

Increasing Short

14,640

1.4322 USD

1p ordinary

SWAP

Increasing Short

133,087

1.4328 GBP

1p ordinary

SWAP

Increasing Short

63,412

1.4332 GBP

1p ordinary

SWAP

Increasing Short

3,812

1.4362 GBP

1p ordinary

SWAP

Increasing Short

15,338

1.4366 GBP

1p ordinary

SWAP

Increasing Short

4,773

1.4370 GBP

1p ordinary

SWAP

Increasing Short

17,148

1.4371 GBP

1p ordinary

SWAP

Increasing Short

817

1.4427 GBP

1p ordinary

CFD

Decreasing Short

23,510

1.4370 GBP

1p ordinary

CFD

Increasing Short

14,696

1.4321 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?

No

Date of disclosure:

11 Jul 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213