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:

27 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:

13,680,151

0.55%

16,624,114

0.67%

(2)

Cash-settled derivatives:

15,033,812

0.61%

12,546,860

0.51%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

28,713,963

1.16%

29,170,974

1.18%

(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

1,433,421

1.4080 GBP

1p ordinary

Purchase

205,549

1.4092 GBP

1p ordinary

Purchase

172,502

1.4084 GBP

1p ordinary

Purchase

40,226

1.4101 GBP

1p ordinary

Purchase

36,841

1.4046 GBP

1p ordinary

Purchase

28,889

1.4074 GBP

1p ordinary

Purchase

23,449

1.4089 GBP

1p ordinary

Purchase

21,515

1.4086 GBP

1p ordinary

Purchase

16,809

1.4117 GBP

1p ordinary

Purchase

16,000

1.4139 GBP

1p ordinary

Purchase

12,685

1.4135 GBP

1p ordinary

Purchase

12,574

1.4051 GBP

1p ordinary

Purchase

11,975

1.4105 GBP

1p ordinary

Purchase

11,500

1.4148 GBP

1p ordinary

Purchase

8,211

1.4060 GBP

1p ordinary

Purchase

8,149

1.4067 GBP

1p ordinary

Purchase

7,833

1.4026 GBP

1p ordinary

Purchase

5,926

1.4110 GBP

1p ordinary

Purchase

5,922

1.4096 GBP

1p ordinary

Purchase

5,625

1.4050 GBP

1p ordinary

Purchase

4,832

1.4070 GBP

1p ordinary

Purchase

4,257

1.4124 GBP

1p ordinary

Purchase

3,295

1.4030 GBP

1p ordinary

Purchase

3,285

1.4040 GBP

1p ordinary

Purchase

1,814

1.4170 GBP

1p ordinary

Purchase

1,194

1.4132 GBP

1p ordinary

Purchase

1,171

1.4130 GBP

1p ordinary

Purchase

841

1.4090 GBP

1p ordinary

Purchase

795

1.4020 GBP

1p ordinary

Purchase

444

1.4100 GBP

1p ordinary

Purchase

111

1.4085 GBP

1p ordinary

Purchase

37

1.4180 GBP

1p ordinary

Purchase

28

1.4150 GBP

1p ordinary

Purchase

16

1.4140 GBP

1p ordinary

Sale

454,977

1.4080 GBP

1p ordinary

Sale

364,709

1.4095 GBP

1p ordinary

Sale

100,182

1.4106 GBP

1p ordinary

Sale

94,813

1.4094 GBP

1p ordinary

Sale

67,211

1.4040 GBP

1p ordinary

Sale

63,852

1.4150 GBP

1p ordinary

Sale

51,932

1.4090 GBP

1p ordinary

Sale

33,278

1.4064 GBP

1p ordinary

Sale

28,711

1.4104 GBP

1p ordinary

Sale

21,093

1.4113 GBP

1p ordinary

Sale

11,401

1.4192 GBP

1p ordinary

Sale

7,962

1.4078 GBP

1p ordinary

Sale

7,413

1.4050 GBP

1p ordinary

Sale

7,372

1.4110 GBP

1p ordinary

Sale

7,354

1.4098 GBP

1p ordinary

Sale

6,244

1.4114 GBP

1p ordinary

Sale

4,855

1.4088 GBP

1p ordinary

Sale

4,832

1.4070 GBP

1p ordinary

Sale

3,889

1.4074 GBP

1p ordinary

Sale

3,295

1.4030 GBP

1p ordinary

Sale

2,940

1.4062 GBP

1p ordinary

Sale

2,410

1.4020 GBP

1p ordinary

Sale

2,130

1.4037 GBP

1p ordinary

Sale

1,814

1.4170 GBP

1p ordinary

Sale

1,504

1.4160 GBP

1p ordinary

Sale

1,460

1.4060 GBP

1p ordinary

Sale

456

1.4140 GBP

1p ordinary

Sale

444

1.4100 GBP

1p ordinary

Sale

111

1.4085 GBP

1p ordinary

Sale

37

1.4180 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

3,990

1.3969 GBP

1p ordinary

SWAP

Increasing Long

5,065

1.4050 GBP

1p ordinary

SWAP

Increasing Long

164,216

1.4079 GBP

1p ordinary

SWAP

Increasing Long

123,700

1.4080 GBP

1p ordinary

SWAP

Increasing Long

51,091

1.4090 GBP

1p ordinary

SWAP

Increasing Long

94,813

1.4094 GBP

1p ordinary

SWAP

Increasing Long

7,354

1.4098 GBP

1p ordinary

SWAP

Increasing Long

4,932

1.4104 GBP

1p ordinary

SWAP

Increasing Long

13

1.4109 GBP

1p ordinary

SWAP

Increasing Long

13,258

1.4112 GBP

1p ordinary

SWAP

Increasing Long

126

1.4121 GBP

1p ordinary

SWAP

Increasing Long

279

1.4142 GBP

1p ordinary

SWAP

Increasing Long

19,063

1.4161 GBP

1p ordinary

SWAP

Increasing Long

370

1.4184 GBP

1p ordinary

SWAP

Decreasing Long

7,833

1.4026 GBP

1p ordinary

SWAP

Decreasing Long

1,200

1.4065 GBP

1p ordinary

SWAP

Decreasing Long

8,149

1.4067 GBP

1p ordinary

SWAP

Decreasing Long

1,351,857

1.4080 GBP

1p ordinary

SWAP

Decreasing Long

8,241

1.4086 GBP

1p ordinary

SWAP

Decreasing Long

26,069

1.4087 GBP

1p ordinary

SWAP

Decreasing Long

23,449

1.4089 GBP

1p ordinary

SWAP

Decreasing Long

2,774

1.4103 GBP

1p ordinary

CFD

Decreasing Short

62,073

1.4039 GBP

1p ordinary

CFD

Decreasing Short

1,371

1.4048 GBP

1p ordinary

CFD

Decreasing Short

30,029

1.4078 GBP

1p ordinary

CFD

Decreasing Short

12,965

1.4079 GBP

1p ordinary

CFD

Decreasing Short

61,161

1.4150 GBP

1p ordinary

CFD

Increasing Short

1,371

1.3967 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:

28 Aug 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213