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:

15 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:

14,484,332

0.58%

13,007,269

0.52%

(2)

Cash-settled derivatives:

11,463,602

0.46%

13,312,340

0.54%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

25,947,934

1.05%

26,319,609

1.06%

(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

218,025

1.3804 GBP

1p ordinary

Purchase

164,371

1.3802 GBP

1p ordinary

Purchase

98,595

1.3842 GBP

1p ordinary

Purchase

66,550

1.3800 GBP

1p ordinary

Purchase

35,387

1.3840 GBP

1p ordinary

Purchase

27,821

1.3819 GBP

1p ordinary

Purchase

21,216

1.3818 GBP

1p ordinary

Purchase

20,667

1.3822 GBP

1p ordinary

Purchase

9,496

1.3810 GBP

1p ordinary

Purchase

8,606

1.3833 GBP

1p ordinary

Purchase

8,325

1.3784 GBP

1p ordinary

Purchase

7,444

1.3850 GBP

1p ordinary

Purchase

6,811

1.3812 GBP

1p ordinary

Purchase

6,769

1.3832 GBP

1p ordinary

Purchase

6,556

1.3851 GBP

1p ordinary

Purchase

4,706

1.3830 GBP

1p ordinary

Purchase

3,847

1.3860 GBP

1p ordinary

Purchase

3,098

1.3814 GBP

1p ordinary

Purchase

2,861

1.3820 GBP

1p ordinary

Purchase

2,540

1.3828 GBP

1p ordinary

Purchase

2,322

1.3790 GBP

1p ordinary

Purchase

2,245

1.3805 GBP

1p ordinary

Purchase

89

1.3825 GBP

1p ordinary

Sale

895,152

1.3800 GBP

1p ordinary

Sale

190,382

1.3801 GBP

1p ordinary

Sale

156,041

1.3804 GBP

1p ordinary

Sale

149,014

1.3807 GBP

1p ordinary

Sale

76,115

1.3814 GBP

1p ordinary

Sale

27,877

1.3829 GBP

1p ordinary

Sale

23,696

1.3799 GBP

1p ordinary

Sale

16,697

1.3808 GBP

1p ordinary

Sale

10,318

1.3790 GBP

1p ordinary

Sale

10,000

1.3796 GBP

1p ordinary

Sale

9,339

1.3839 GBP

1p ordinary

Sale

7,467

1.3845 GBP

1p ordinary

Sale

5,615

1.3827 GBP

1p ordinary

Sale

4,937

1.3840 GBP

1p ordinary

Sale

4,468

1.3819 GBP

1p ordinary

Sale

3,459

1.3850 GBP

1p ordinary

Sale

3,407

1.3828 GBP

1p ordinary

Sale

2,861

1.3820 GBP

1p ordinary

Sale

2,302

1.3810 GBP

1p ordinary

Sale

2,087

1.3855 GBP

1p ordinary

Sale

1,597

1.3860 GBP

1p ordinary

Sale

1,281

1.3830 GBP

1p ordinary

Sale

71

1.3805 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

7,965

1.3790 GBP

1p ordinary

SWAP

Decreasing Short

23,696

1.3799 GBP

1p ordinary

SWAP

Decreasing Short

655,810

1.3800 GBP

1p ordinary

SWAP

Decreasing Short

49,900

1.3801 GBP

1p ordinary

SWAP

Decreasing Short

156,041

1.3804 GBP

1p ordinary

SWAP

Decreasing Short

69,606

1.3814 GBP

1p ordinary

SWAP

Decreasing Short

20,208

1.3818 GBP

1p ordinary

SWAP

Decreasing Short

1,766

1.3819 GBP

1p ordinary

SWAP

Decreasing Short

6,701

1.3821 GBP

1p ordinary

SWAP

Decreasing Short

3,798

1.3822 GBP

1p ordinary

SWAP

Decreasing Short

8,698

1.3823 GBP

1p ordinary

SWAP

Decreasing Short

3,008

1.3826 GBP

1p ordinary

SWAP

Decreasing Short

1,222

1.3837 GBP

1p ordinary

SWAP

Decreasing Short

774

1.3843 GBP

1p ordinary

SWAP

Decreasing Short

2,087

1.3855 GBP

1p ordinary

SWAP

Increasing Short

17,383

1.3797 GBP

1p ordinary

SWAP

Increasing Short

5,773

1.3798 GBP

1p ordinary

SWAP

Increasing Short

11,953

1.3799 GBP

1p ordinary

SWAP

Increasing Short

33,856

1.3800 GBP

1p ordinary

SWAP

Increasing Short

3,817

1.3804 GBP

1p ordinary

SWAP

Increasing Short

9,283

1.3814 GBP

1p ordinary

SWAP

Increasing Short

27,821

1.3819 GBP

1p ordinary

SWAP

Increasing Short

1,939

1.3827 GBP

1p ordinary

SWAP

Increasing Short

11,740

1.3828 GBP

1p ordinary

SWAP

Increasing Short

3,491

1.3835 GBP

1p ordinary

SWAP

Increasing Short

5,164

1.3838 GBP

1p ordinary

SWAP

Increasing Short

1,389

1.3841 GBP

1p ordinary

SWAP

Increasing Short

57,436

1.3842 GBP

1p ordinary

SWAP

Increasing Short

6,556

1.3851 GBP

1p ordinary

SWAP

Increasing Short

161

1.3860 GBP

1p ordinary

CFD

Decreasing Short

10,000

1.3796 GBP

1p ordinary

CFD

Decreasing Short

43,583

1.3800 GBP

1p ordinary

CFD

Decreasing Short

72,187

1.3807 GBP

1p ordinary

CFD

Decreasing Short

27,877

1.3829 GBP

1p ordinary

CFD

Increasing Short

8,325

1.3784 GBP

1p ordinary

CFD

Increasing Short

43,583

1.3800 GBP

1p ordinary

CFD

Increasing Short

41,159

1.3842 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:

18 Aug 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213