Form 8.3 STHREE 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

STHREE 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:

02 Nov 2026

(f)

In addition to the company in 1(c) above, is the discloser making

NO

disclosures in respect of any other party to the offer?

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:

3,699,961

3.05%

432,588

0.36%

(2)

Cash-settled derivatives:

412,270

0.34%

3,694,941

3.04%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,112,231

3.39%

4,127,529

3.40%

(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

6,849

3.0778 GBP

1p ordinary

Purchase

4,000

3.0718 GBP

1p ordinary

Purchase

3,489

3.0808 GBP

1p ordinary

Purchase

1,925

3.0750 GBP

1p ordinary

Purchase

1,515

3.0890 GBP

1p ordinary

Purchase

1,293

3.0909 GBP

1p ordinary

Purchase

971

3.0742 GBP

1p ordinary

Purchase

617

3.0884 GBP

1p ordinary

Purchase

559

3.0850 GBP

1p ordinary

Purchase

433

3.1000 GBP

1p ordinary

Purchase

365

3.0800 GBP

1p ordinary

Purchase

364

3.0900 GBP

1p ordinary

Purchase

260

3.0700 GBP

1p ordinary

Purchase

150

3.0875 GBP

1p ordinary

Purchase

121

3.1050 GBP

1p ordinary

Purchase

108

3.0659 GBP

1p ordinary

Purchase

91

3.0630 GBP

1p ordinary

Purchase

64

3.0500 GBP

1p ordinary

Purchase

13

3.0973 GBP

1p ordinary

Sale

30,841

3.0803 GBP

1p ordinary

Sale

6,770

3.0878 GBP

1p ordinary

Sale

3,824

3.0879 GBP

1p ordinary

Sale

3,575

3.0716 GBP

1p ordinary

Sale

2,874

3.0749 GBP

1p ordinary

Sale

2,122

3.0778 GBP

1p ordinary

Sale

1,875

3.0390 GBP

1p ordinary

Sale

1,717

3.0750 GBP

1p ordinary

Sale

1,249

3.0452 GBP

1p ordinary

Sale

856

3.0900 GBP

1p ordinary

Sale

733

3.1030 GBP

1p ordinary

Sale

600

3.0788 GBP

1p ordinary

Sale

290

3.0700 GBP

1p ordinary

Sale

212

3.0666 GBP

1p ordinary

Sale

161

3.0894 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 Long

934

3.0911 GBP

1p ordinary

SWAP

Decreasing Short

30

3.0700 GBP

1p ordinary

SWAP

Opening Long

212

3.0664 GBP

1p ordinary

SWAP

Increasing Short

2,109

3.0750 GBP

1p ordinary

CFD

Decreasing Short

831

3.0497 GBP

1p ordinary

CFD

Opening Short

1,098

3.0753 GBP

1p ordinary

CFD

Increasing Short

1,480

3.0840 GBP

1p ordinary

CFD

Decreasing Short

450

3.0498 GBP

1p ordinary

SWAP

Decreasing Short

1,249

3.0451 GBP

1p ordinary

SWAP

Decreasing Short

13

3.0390 GBP

1p ordinary

SWAP

Decreasing Long

150

3.0875 GBP

1p ordinary

SWAP

Decreasing Long

3,489

3.0808 GBP

1p ordinary

SWAP

Opening Long

159

3.1100 GBP

1p ordinary

SWAP

Decreasing Long

581

3.0855 GBP

1p ordinary

SWAP

Decreasing Short

856

3.0900 GBP

1p ordinary

SWAP

Closing Long

212

3.0751 GBP

1p ordinary

SWAP

Opening Short

31

3.0751 GBP

1p ordinary

CFD

Increasing Short

2,696

3.0752 GBP

1p ordinary

CFD

Increasing Short

1,067

3.0969 GBP

1p ordinary

SWAP

Decreasing Short

1,862

3.0390 GBP

1p ordinary

SWAP

Decreasing Short

80

3.0803 GBP

1p ordinary

SWAP

Decreasing Long

64

3.0500 GBP

1p ordinary

SWAP

Closing Long

159

3.0750 GBP

1p ordinary

SWAP

Increasing Long

2,874

3.0749 GBP

1p ordinary

SWAP

Decreasing Short

733

3.1030 GBP

1p ordinary

SWAP

Closing Short

31

3.0818 GBP

1p ordinary

SWAP

Opening Long

2,104

3.0818 GBP

1p ordinary

SWAP

Decreasing Short

30,761

3.0803 GBP

1p ordinary

SWAP

Decreasing Short

17

3.0878 GBP

1p ordinary

SWAP

Increasing Long

92

3.0899 GBP

1p ordinary

SWAP

Decreasing Short

6,753

3.0878 GBP

1p ordinary

SWAP

Increasing Long

3,732

3.0879 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:

03 Nov 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213