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:

14 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:

14,583,690

0.59%

12,230,791

0.49%

(2)

Cash-settled derivatives:

10,719,635

0.43%

13,442,471

0.54%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

25,303,325

1.02%

25,673,262

1.03%

(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

289,566

1.3726 GBP

1p ordinary

Purchase

287,612

1.3733 GBP

1p ordinary

Purchase

176,207

1.3712 GBP

1p ordinary

Purchase

85,972

1.3735 GBP

1p ordinary

Purchase

63,348

1.3732 GBP

1p ordinary

Purchase

38,656

1.3721 GBP

1p ordinary

Purchase

35,131

1.3810 GBP

1p ordinary

Purchase

32,066

1.3742 GBP

1p ordinary

Purchase

31,727

1.3730 GBP

1p ordinary

Purchase

19,236

1.3720 GBP

1p ordinary

Purchase

6,508

1.3680 GBP

1p ordinary

Purchase

6,084

1.3780 GBP

1p ordinary

Purchase

5,490

1.3768 GBP

1p ordinary

Purchase

5,397

1.3770 GBP

1p ordinary

Purchase

5,113

1.3790 GBP

1p ordinary

Purchase

3,739

1.3762 GBP

1p ordinary

Purchase

3,567

1.3796 GBP

1p ordinary

Purchase

2,906

1.3690 GBP

1p ordinary

Purchase

2,713

1.3765 GBP

1p ordinary

Purchase

2,070

1.3700 GBP

1p ordinary

Purchase

2,007

1.3670 GBP

1p ordinary

Purchase

1,747

1.3779 GBP

1p ordinary

Purchase

1,520

1.3820 GBP

1p ordinary

Purchase

1,516

1.3840 GBP

1p ordinary

Purchase

1,232

1.3710 GBP

1p ordinary

Purchase

705

1.3760 GBP

1p ordinary

Purchase

514

1.3740 GBP

1p ordinary

Purchase

422

1.3750 GBP

1p ordinary

Purchase

97

1.3800 GBP

1p ordinary

Purchase

8

1.3830 GBP

1p ordinary

Purchase

5

1.3660 GBP

1p ordinary

Sale

220,723

1.3732 GBP

1p ordinary

Sale

182,414

1.3756 GBP

1p ordinary

Sale

120,768

1.3730 GBP

1p ordinary

Sale

32,008

1.3810 GBP

1p ordinary

Sale

10,661

1.3803 GBP

1p ordinary

Sale

10,442

1.3744 GBP

1p ordinary

Sale

8,566

1.3780 GBP

1p ordinary

Sale

8,062

1.3690 GBP

1p ordinary

Sale

6,918

1.3770 GBP

1p ordinary

Sale

6,452

1.3680 GBP

1p ordinary

Sale

4,750

1.3751 GBP

1p ordinary

Sale

4,004

1.3775 GBP

1p ordinary

Sale

3,126

1.3840 GBP

1p ordinary

Sale

2,900

1.3694 GBP

1p ordinary

Sale

2,713

1.3765 GBP

1p ordinary

Sale

2,673

1.3714 GBP

1p ordinary

Sale

2,070

1.3700 GBP

1p ordinary

Sale

2,007

1.3670 GBP

1p ordinary

Sale

1,929

1.3750 GBP

1p ordinary

Sale

1,638

1.3790 GBP

1p ordinary

Sale

1,520

1.3820 GBP

1p ordinary

Sale

1,232

1.3710 GBP

1p ordinary

Sale

630

1.3720 GBP

1p ordinary

Sale

565

1.3815 GBP

1p ordinary

Sale

403

1.3764 GBP

1p ordinary

Sale

366

1.3740 GBP

1p ordinary

Sale

97

1.3800 GBP

1p ordinary

Sale

20

1.3760 GBP

1p ordinary

Sale

8

1.3830 GBP

1p ordinary

Sale

5

1.3660 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

651

1.3685 GBP

1p ordinary

SWAP

Decreasing Short

11,288

1.3688 GBP

1p ordinary

SWAP

Decreasing Short

375

1.3695 GBP

1p ordinary

SWAP

Decreasing Short

138,369

1.3728 GBP

1p ordinary

SWAP

Decreasing Short

1,815

1.3734 GBP

1p ordinary

SWAP

Decreasing Short

4,750

1.3751 GBP

1p ordinary

SWAP

Decreasing Short

653

1.3757 GBP

1p ordinary

SWAP

Decreasing Short

403

1.3764 GBP

1p ordinary

SWAP

Decreasing Short

1,521

1.3770 GBP

1p ordinary

SWAP

Decreasing Short

4,004

1.3775 GBP

1p ordinary

SWAP

Decreasing Short

976

1.3782 GBP

1p ordinary

SWAP

Decreasing Short

20

1.3800 GBP

1p ordinary

SWAP

Decreasing Short

10,661

1.3803 GBP

1p ordinary

SWAP

Decreasing Short

210

1.3814 GBP

1p ordinary

SWAP

Decreasing Short

355

1.3815 GBP

1p ordinary

SWAP

Increasing Short

10,968

1.3711 GBP

1p ordinary

SWAP

Increasing Short

8,696

1.3712 GBP

1p ordinary

SWAP

Increasing Short

5,800

1.3716 GBP

1p ordinary

SWAP

Increasing Short

18,606

1.3720 GBP

1p ordinary

SWAP

Increasing Short

289,566

1.3726 GBP

1p ordinary

SWAP

Increasing Short

236,039

1.3730 GBP

1p ordinary

SWAP

Increasing Short

38,966

1.3733 GBP

1p ordinary

SWAP

Increasing Short

87,291

1.3735 GBP

1p ordinary

SWAP

Increasing Short

685

1.3760 GBP

1p ordinary

SWAP

Increasing Short

3,739

1.3762 GBP

1p ordinary

SWAP

Increasing Short

2,041

1.3768 GBP

1p ordinary

SWAP

Increasing Short

2,039

1.3797 GBP

1p ordinary

CFD

Decreasing Short

5,927

1.3680 GBP

1p ordinary

CFD

Decreasing Short

24,116

1.3689 GBP

1p ordinary

CFD

Decreasing Short

2,900

1.3694 GBP

1p ordinary

CFD

Decreasing Short

64,131

1.3728 GBP

1p ordinary

CFD

Decreasing Short

182,414

1.3756 GBP

1p ordinary

CFD

Increasing Short

5,983

1.3680 GBP

1p ordinary

CFD

Increasing Short

24,116

1.3689 GBP

1p ordinary

CFD

Increasing Short

158,169

1.3712 GBP

1p ordinary

CFD

Increasing Short

29,022

1.3735 GBP

1p ordinary

CFD

Increasing Short

21,160

1.3783 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:

15 Aug 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213