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:

04 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:

3,642,349

3.00%

472,956

0.39%

(2)

Cash-settled derivatives:

452,551

0.37%

3,641,299

3.00%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,094,900

3.37%

4,114,255

3.39%

(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

13,992

3.0131  GBP

1p ordinary

Purchase

8,743

3.0103  GBP

1p ordinary

Purchase

6,447

3.0100  GBP

1p ordinary

Purchase

5,676

3.0101  GBP

1p ordinary

Purchase

4,013

3.0109  GBP

1p ordinary

Purchase

3,750

2.9973  GBP

1p ordinary

Purchase

1,451

3.0164  GBP

1p ordinary

Purchase

898

3.0172  GBP

1p ordinary

Purchase

330

3.0050  GBP

1p ordinary

Purchase

187

2.9490  GBP

1p ordinary

Purchase

100

3.0099  GBP

1p ordinary

Purchase

78

2.9400  GBP

1p ordinary

Purchase

52

3.0093  GBP

1p ordinary

Purchase

36

3.0150  GBP

1p ordinary

Sale

43,177

3.0132  GBP

1p ordinary

Sale

27,080

2.9996  GBP

1p ordinary

Sale

11,370

3.0112  GBP

1p ordinary

Sale

8,047

3.0101  GBP

1p ordinary

Sale

5,622

3.0075  GBP

1p ordinary

Sale

5,140

3.0100  GBP

1p ordinary

Sale

3,648

3.0013  GBP

1p ordinary

Sale

2,979

3.0235  GBP

1p ordinary

Sale

2,922

3.0082  GBP

1p ordinary

Sale

784

3.0200  GBP

1p ordinary

Sale

714

3.0164  GBP

1p ordinary

Sale

624

3.0225  GBP

1p ordinary

Sale

367

3.0300  GBP

1p ordinary

Sale

286

2.9620  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

78

2.9400  GBP

1p ordinary

SWAP

Decreasing Short

467

2.9515  GBP

1p ordinary

SWAP

Opening Short

5,040

3.0072  GBP

1p ordinary

SWAP

Increasing Long

2,922

3.0082  GBP

1p ordinary

SWAP

Decreasing Short

2,204

3.0120  GBP

1p ordinary

CFD

Decreasing Short

991

3.0250  GBP

1p ordinary

CFD

Increasing Short

655

3.0102  GBP

1p ordinary

CFD

Increasing Short

1,670

3.0019  GBP

1p ordinary

CFD

Increasing Short

1,068

3.0101  GBP

1p ordinary

CFD

Increasing Long

8,047

3.0101  GBP

1p ordinary

SWAP

Decreasing Short

27,009

2.9996  GBP

1p ordinary

SWAP

Decreasing Short

71

2.9996  GBP

1p ordinary

SWAP

Decreasing Long

187

2.9490  GBP

1p ordinary

SWAP

Decreasing Long

13,992

3.0131  GBP

1p ordinary

SWAP

Increasing Long

464

2.9899  GBP

1p ordinary

SWAP

Decreasing Short

784

3.0200  GBP

1p ordinary

SWAP

Closing Short

5,040

3.0100  GBP

1p ordinary

SWAP

Decreasing Long

374

3.0180  GBP

1p ordinary

SWAP

Increasing Short

2,191

3.0100  GBP

1p ordinary

CFD

Increasing Short

4,459

3.0102  GBP

1p ordinary

SWAP

Decreasing Short

43,064

3.0132  GBP

1p ordinary

SWAP

Decreasing Short

113

3.0132  GBP

1p ordinary

SWAP

Decreasing Long

4,031

3.0101  GBP

1p ordinary

SWAP

Increasing Long

10,906

3.0121  GBP

1p ordinary

SWAP

Decreasing Short

2,979

3.0235  GBP

1p ordinary

SWAP

Decreasing Long

3,614

3.0101  GBP

1p ordinary

SWAP

Decreasing Long

1,645

3.0101  GBP

1p ordinary

SWAP

Decreasing Long

146

3.0100  GBP

1p ordinary

SWAP

Closing Long

2,402

3.0100  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:

05 Nov 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213