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:

26 Aug 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:

13,815,162

0.56%

17,508,165

0.71%

(2)

Cash-settled derivatives:

15,945,085

0.64%

12,683,059

0.51%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

29,760,247

1.20%

30,191,224

1.22%

(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 PERSON MAKING THE DISCLOSURE

(a)

Purchases and sales

Class of relevant

Purchase/sale

Number of

Price per unit

security

securities

1p ordinary

Purchase

498,640

1.4080 GBP

1p ordinary

Purchase

339,469

1.4081 GBP

1p ordinary

Purchase

50,317

1.4140 GBP

1p ordinary

Purchase

25,490

1.4098 GBP

1p ordinary

Purchase

9,804

1.4092 GBP

1p ordinary

Purchase

9,072

1.4172 GBP

1p ordinary

Purchase

6,954

1.4190 GBP

1p ordinary

Purchase

4,990

1.4150 GBP

1p ordinary

Purchase

3,016

1.4185 GBP

1p ordinary

Purchase

2,154

1.4130 GBP

1p ordinary

Purchase

1,483

1.4170 GBP

1p ordinary

Purchase

50

1.4110 GBP

1p ordinary

Sale

953,096

1.4094 GBP

1p ordinary

Sale

557,513

1.4158 GBP

1p ordinary

Sale

462,630

1.4080 GBP

1p ordinary

Sale

161,625

1.4147 GBP

1p ordinary

Sale

29,146

1.4140 GBP

1p ordinary

Sale

27,509

1.4183 GBP

1p ordinary

Sale

23,410

1.4162 GBP

1p ordinary

Sale

19,445

1.4142 GBP

1p ordinary

Sale

18,868

1.4110 GBP

1p ordinary

Sale

13,239

1.4149 GBP

1p ordinary

Sale

12,778

1.4195 GBP

1p ordinary

Sale

8,684

1.4144 GBP

1p ordinary

Sale

6,032

1.4185 GBP

1p ordinary

Sale

5,636

1.4157 GBP

1p ordinary

Sale

4,553

1.4154 GBP

1p ordinary

Sale

3,740

1.4099 GBP

1p ordinary

Sale

3,550

1.4166 GBP

1p ordinary

Sale

2,931

1.4220 GBP

1p ordinary

Sale

1,605

1.4160 GBP

1p ordinary

Sale

1,243

1.4168 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

Increasing Long

700,638

1.4080 GBP

1p ordinary

SWAP

Increasing Long

3,911

1.4087 GBP

1p ordinary

SWAP

Increasing Long

13,729

1.4088 GBP

1p ordinary

SWAP

Increasing Long

3,740

1.4099 GBP

1p ordinary

SWAP

Increasing Long

18,868

1.4110 GBP

1p ordinary

SWAP

Increasing Long

13,049

1.4136 GBP

1p ordinary

SWAP

Increasing Long

158,875

1.4147 GBP

1p ordinary

SWAP

Increasing Long

145,399

1.4151 GBP

1p ordinary

SWAP

Increasing Long

2,441

1.4153 GBP

1p ordinary

SWAP

Increasing Long

19,062

1.4155 GBP

1p ordinary

SWAP

Increasing Long

557,783

1.4158 GBP

1p ordinary

SWAP

Increasing Long

898

1.4163 GBP

1p ordinary

SWAP

Increasing Long

27,509

1.4183 GBP

1p ordinary

SWAP

Increasing Long

12,778

1.4194 GBP

1p ordinary

SWAP

Decreasing Long

71,500

1.4081 GBP

1p ordinary

SWAP

Decreasing Long

93,648

1.4083 GBP

1p ordinary

SWAP

Decreasing Long

9,804

1.4092 GBP

1p ordinary

SWAP

Decreasing Long

2,546

1.4100 GBP

1p ordinary

SWAP

Decreasing Long

50

1.4110 GBP

1p ordinary

SWAP

Decreasing Long

9,072

1.4172 GBP

1p ordinary

SWAP

Decreasing Long

6,954

1.4190 GBP

1p ordinary

CFD

Decreasing Short

27,675

1.4079 GBP

1p ordinary

CFD

Decreasing Short

10,323

1.4098 GBP

1p ordinary

CFD

Decreasing Short

23,350

1.4138 GBP

1p ordinary

CFD

Increasing Short

229,286

1.4081 GBP

1p ordinary

CFD

Increasing Short

4,920

1.4188 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)

Exercise

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:

27 Aug 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213