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:

13 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:

14,437,583

0.58%

12,557,895

0.51%

(2)

Cash-settled derivatives:

11,009,764

0.44%

13,245,253

0.53%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

25,447,347

1.03%

25,803,148

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 PERSON MAKING THE DISCLOSURE

(a)

Purchases and sales

Class of relevant

Purchase/sale

Number of

Price per unit

security

securities

1p ordinary

Purchase

269,327

1.3929 GBP

1p ordinary

Purchase

238,582

1.3930 GBP

1p ordinary

Purchase

155,736

1.3911 GBP

1p ordinary

Purchase

56,432

1.3928 GBP

1p ordinary

Purchase

18,492

1.3884 GBP

1p ordinary

Purchase

17,590

1.3907 GBP

1p ordinary

Purchase

11,341

1.3908 GBP

1p ordinary

Purchase

10,204

1.3946 GBP

1p ordinary

Purchase

8,424

1.3855 GBP

1p ordinary

Purchase

8,352

1.3860 GBP

1p ordinary

Purchase

7,754

1.3927 GBP

1p ordinary

Purchase

6,874

1.3971 GBP

1p ordinary

Purchase

6,295

1.3940 GBP

1p ordinary

Purchase

5,461

1.3850 GBP

1p ordinary

Purchase

4,911

1.3840 GBP

1p ordinary

Purchase

4,807

1.3931 GBP

1p ordinary

Purchase

4,408

1.3900 GBP

1p ordinary

Purchase

4,287

1.3910 GBP

1p ordinary

Purchase

4,224

1.3920 GBP

1p ordinary

Purchase

4,038

1.3870 GBP

1p ordinary

Purchase

3,150

1.3820 GBP

1p ordinary

Purchase

2,924

1.3970 GBP

1p ordinary

Purchase

2,718

1.3830 GBP

1p ordinary

Purchase

2,327

1.3890 GBP

1p ordinary

Purchase

2,032

1.3880 GBP

1p ordinary

Purchase

1,901

1.3950 GBP

1p ordinary

Purchase

1,791

1.3960 GBP

1p ordinary

Purchase

1,544

1.4000 GBP

1p ordinary

Purchase

1,195

1.3810 GBP

1p ordinary

Purchase

425

1.3917 GBP

1p ordinary

Sale

578,108

1.3930 GBP

1p ordinary

Sale

179,931

1.3927 GBP

1p ordinary

Sale

156,527

1.3922 GBP

1p ordinary

Sale

32,221

1.3929 GBP

1p ordinary

Sale

8,192

1.3920 GBP

1p ordinary

Sale

6,288

1.3860 GBP

1p ordinary

Sale

5,554

1.3971 GBP

1p ordinary

Sale

5,461

1.3850 GBP

1p ordinary

Sale

5,000

1.3919 GBP

1p ordinary

Sale

4,568

1.3965 GBP

1p ordinary

Sale

4,408

1.3900 GBP

1p ordinary

Sale

4,287

1.3910 GBP

1p ordinary

Sale

4,038

1.3870 GBP

1p ordinary

Sale

3,544

1.3940 GBP

1p ordinary

Sale

3,471

1.3876 GBP

1p ordinary

Sale

3,150

1.3820 GBP

1p ordinary

Sale

2,924

1.3970 GBP

1p ordinary

Sale

2,757

1.3840 GBP

1p ordinary

Sale

2,718

1.3830 GBP

1p ordinary

Sale

2,327

1.3890 GBP

1p ordinary

Sale

2,032

1.3880 GBP

1p ordinary

Sale

1,901

1.3950 GBP

1p ordinary

Sale

1,791

1.3960 GBP

1p ordinary

Sale

1,648

1.4000 GBP

1p ordinary

Sale

1,195

1.3810 GBP

1p ordinary

Sale

680

1.3975 GBP

1p ordinary

Sale

430

1.3964 GBP

1p ordinary

Sale

228

1.3879 GBP

1p ordinary

Sale

200

1.4010 GBP

1p ordinary

Sale

14

1.3969 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

3,471

1.3876 GBP

1p ordinary

SWAP

Decreasing Short

228

1.3879 GBP

1p ordinary

SWAP

Decreasing Short

32,221

1.3929 GBP

1p ordinary

SWAP

Decreasing Short

155,942

1.3930 GBP

1p ordinary

SWAP

Decreasing Short

430

1.3964 GBP

1p ordinary

SWAP

Decreasing Short

2,942

1.3965 GBP

1p ordinary

SWAP

Decreasing Short

14

1.3969 GBP

1p ordinary

SWAP

Decreasing Short

5,554

1.3971 GBP

1p ordinary

SWAP

Decreasing Short

680

1.3975 GBP

1p ordinary

SWAP

Decreasing Short

200

1.4009 GBP

1p ordinary

SWAP

Increasing Short

16,810

1.3878 GBP

1p ordinary

SWAP

Increasing Short

29,116

1.3880 GBP

1p ordinary

SWAP

Increasing Short

1,865

1.3881 GBP

1p ordinary

SWAP

Increasing Short

17,458

1.3886 GBP

1p ordinary

SWAP

Increasing Short

11,341

1.3908 GBP

1p ordinary

SWAP

Increasing Short

32,345

1.3911 GBP

1p ordinary

SWAP

Increasing Short

425

1.3917 GBP

1p ordinary

SWAP

Increasing Short

128,496

1.3925 GBP

1p ordinary

SWAP

Increasing Short

18,505

1.3929 GBP

1p ordinary

SWAP

Increasing Short

27,208

1.3930 GBP

1p ordinary

SWAP

Increasing Short

4,807

1.3931 GBP

1p ordinary

SWAP

Increasing Short

11,675

1.3955 GBP

1p ordinary

SWAP

Increasing Short

2,726

1.3958 GBP

1p ordinary

SWAP

Increasing Short

6,874

1.3971 GBP

1p ordinary

CFD

Decreasing Short

111,704

1.3840 GBP

1p ordinary

CFD

Decreasing Short

65,427

1.3928 GBP

1p ordinary

CFD

Decreasing Short

29,177

1.3929 GBP

1p ordinary

CFD

Decreasing Short

7,084

1.3940 GBP

1p ordinary

CFD

Decreasing Short

421

1.3949 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:

14 Aug 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213