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:

23 Oct 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:

3,832,915

3.15%

374,247

0.31%

(2)

Cash-settled derivatives:

351,406

0.29%

3,827,767

3.15%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,184,321

3.44%

4,202,014

3.46%

(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

13,984

2.9650 GBP

1p Ordinary

Purchase

7,691

2.9547 GBP

1p Ordinary

Purchase

6,539

2.9450 GBP

1p Ordinary

Purchase

4,550

2.9700 GBP

1p Ordinary

Purchase

1,857

2.9445 GBP

1p Ordinary

Purchase

1,606

2.9701 GBP

1p Ordinary

Purchase

1,519

2.9600 GBP

1p Ordinary

Purchase

1,300

2.9385 GBP

1p Ordinary

Purchase

1,081

2.9421 GBP

1p Ordinary

Purchase

645

2.9613 GBP

1p Ordinary

Purchase

331

2.9239 GBP

1p Ordinary

Purchase

150

2.9365 GBP

1p Ordinary

Purchase

143

2.9568 GBP

1p Ordinary

Purchase

113

2.9525 GBP

1p Ordinary

Purchase

77

2.9500 GBP

1p Ordinary

Sale

48,606

2.9407 GBP

1p Ordinary

Sale

12,602

2.9700 GBP

1p Ordinary

Sale

6,672

2.9341 GBP

1p Ordinary

Sale

3,828

2.9390 GBP

1p Ordinary

Sale

3,377

2.9699 GBP

1p Ordinary

Sale

2,038

2.9275 GBP

1p Ordinary

Sale

1,767

2.9585 GBP

1p Ordinary

Sale

1,531

2.9705 GBP

1p Ordinary

Sale

732

2.9566 GBP

1p Ordinary

Sale

520

2.9414 GBP

1p Ordinary

Sale

500

2.9525 GBP

1p Ordinary

Sale

263

2.9433 GBP

1p Ordinary

Sale

260

2.9123 GBP

1p Ordinary

Sale

149

2.9150 GBP

1p Ordinary

Sale

89

2.9100 GBP

1p Ordinary

Sale

12

2.9350 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

3,377

2.9699 GBP

1p Ordinary

SWAP

Increasing Short

1,829

2.9699 GBP

1p Ordinary

SWAP

Opening Short

252

2.9450 GBP

1p Ordinary

SWAP

Decreasing Short

555

2.9026 GBP

1p Ordinary

CFD

Increasing Short

1,750

2.9527 GBP

1p Ordinary

CFD

Increasing Short

1,730

2.9439 GBP

1p Ordinary

SWAP

Decreasing Short

48,462

2.9407 GBP

1p Ordinary

SWAP

Decreasing Short

144

2.9407 GBP

1p Ordinary

SWAP

Decreasing Long

1,606

2.9701 GBP

1p Ordinary

SWAP

Decreasing Long

42

2.9250 GBP

1p Ordinary

SWAP

Decreasing Short

963

2.9155 GBP

1p Ordinary

SWAP

Closing Short

252

2.9700 GBP

1p Ordinary

SWAP

Decreasing Short

543

2.9700 GBP

1p Ordinary

SWAP

Decreasing Long

7,691

2.9547 GBP

1p Ordinary

SWAP

Decreasing Long

289

2.9238 GBP

1p Ordinary

SWAP

Increasing Short

786

2.9600 GBP

1p Ordinary

SWAP

Increasing Short

733

2.9600 GBP

1p Ordinary

SWAP

Increasing Long

113

2.9449 GBP

1p Ordinary

SWAP

Increasing Short

143

2.9568 GBP

1p Ordinary

SWAP

Increasing Short

645

2.9613 GBP

1p Ordinary

SWAP

Increasing Long

3,715

2.9388 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:

26 Oct 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213