Auction Technology Group Regulatory News (ATG)

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

AUCTION TECHNOLOGY GROUP 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:

07 Jan 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:

0.01p ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1)

Relevant securities owned

and/or controlled:

2,403,098

1.98%

1,948,021

1.61%

(2)

Cash-settled derivatives:

1,746,918

1.44%

1,474,072

1.22%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,150,016

3.43%

3,422,093

2.83%

(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

0.01p ordinary

Purchase

161,727

3.2150 GBP

0.01p ordinary

Purchase

31,107

3.2170 GBP

0.01p ordinary

Purchase

20,209

3.2527 GBP

0.01p ordinary

Purchase

12,472

3.2423 GBP

0.01p ordinary

Purchase

6,512

3.2814 GBP

0.01p ordinary

Purchase

5,522

3.2826 GBP

0.01p ordinary

Purchase

4,478

3.2624 GBP

0.01p ordinary

Purchase

3,269

3.2899 GBP

0.01p ordinary

Purchase

2,787

3.2422 GBP

0.01p ordinary

Purchase

2,242

3.2597 GBP

0.01p ordinary

Purchase

2,072

3.2452 GBP

0.01p ordinary

Purchase

1,626

3.2795 GBP

0.01p ordinary

Purchase

1,569

3.2200 GBP

0.01p ordinary

Purchase

1,284

3.2825 GBP

0.01p ordinary

Purchase

1,276

3.2250 GBP

0.01p ordinary

Purchase

915

3.2548 GBP

0.01p ordinary

Purchase

889

3.2400 GBP

0.01p ordinary

Purchase

790

3.2450 GBP

0.01p ordinary

Purchase

638

3.2600 GBP

0.01p ordinary

Purchase

503

3.2500 GBP

0.01p ordinary

Purchase

492

3.3300 GBP

0.01p ordinary

Purchase

480

3.2950 GBP

0.01p ordinary

Purchase

411

3.3150 GBP

0.01p ordinary

Purchase

397

3.2650 GBP

0.01p ordinary

Purchase

394

3.2585 GBP

0.01p ordinary

Purchase

364

3.2100 GBP

0.01p ordinary

Purchase

260

3.3000 GBP

0.01p ordinary

Purchase

247

3.2900 GBP

0.01p ordinary

Purchase

234

3.2700 GBP

0.01p ordinary

Purchase

232

3.2335 GBP

0.01p ordinary

Purchase

212

3.2550 GBP

0.01p ordinary

Purchase

169

3.3250 GBP

0.01p ordinary

Purchase

91

3.2800 GBP

0.01p ordinary

Purchase

84

3.3200 GBP

0.01p ordinary

Purchase

8

3.2525 GBP

0.01p ordinary

Sale

95,786

3.2150 GBP

0.01p ordinary

Sale

35,088

3.2674 GBP

0.01p ordinary

Sale

34,215

3.2620 GBP

0.01p ordinary

Sale

26,846

3.2652 GBP

0.01p ordinary

Sale

18,680

3.2450 GBP

0.01p ordinary

Sale

17,847

3.2348 GBP

0.01p ordinary

Sale

10,626

3.3053 GBP

0.01p ordinary

Sale

10,581

3.2431 GBP

0.01p ordinary

Sale

8,007

3.2594 GBP

0.01p ordinary

Sale

6,649

3.2536 GBP

0.01p ordinary

Sale

6,543

3.2148 GBP

0.01p ordinary

Sale

5,984

3.2991 GBP

0.01p ordinary

Sale

2,433

3.2723 GBP

0.01p ordinary

Sale

1,846

3.2877 GBP

0.01p ordinary

Sale

1,786

3.2690 GBP

0.01p ordinary

Sale

1,498

3.2200 GBP

0.01p ordinary

Sale

1,145

3.2500 GBP

0.01p ordinary

Sale

1,089

3.2603 GBP

0.01p ordinary

Sale

955

3.2250 GBP

0.01p ordinary

Sale

889

3.2400 GBP

0.01p ordinary

Sale

770

3.2884 GBP

0.01p ordinary

Sale

669

3.2696 GBP

0.01p ordinary

Sale

638

3.2600 GBP

0.01p ordinary

Sale

600

3.3162 GBP

0.01p ordinary

Sale

511

3.3250 GBP

0.01p ordinary

Sale

492

3.3300 GBP

0.01p ordinary

Sale

480

3.2950 GBP

0.01p ordinary

Sale

468

3.3175 GBP

0.01p ordinary

Sale

411

3.3150 GBP

0.01p ordinary

Sale

397

3.2650 GBP

0.01p ordinary

Sale

364

3.2100 GBP

0.01p ordinary

Sale

260

3.3000 GBP

0.01p ordinary

Sale

247

3.2900 GBP

0.01p ordinary

Sale

212

3.2550 GBP

0.01p ordinary

Sale

91

3.2800 GBP

0.01p ordinary

Sale

84

3.3200 GBP

0.01p ordinary

Sale

8

3.2525 GBP

(b)

Cash-settled derivative transactions

Class of

Product

Nature of dealing

Number of

Price per

relevant

description

reference

unit

security

securities

0.01p ordinary

SWAP

Decreasing Long

1,622

3.2826 GBP

0.01p ordinary

SWAP

Increasing Long

10,855

3.2148 GBP

0.01p ordinary

SWAP

Increasing Long

35,191

3.2150 GBP

0.01p ordinary

SWAP

Increasing Long

596

3.2200 GBP

0.01p ordinary

SWAP

Increasing Long

184

3.2215 GBP

0.01p ordinary

SWAP

Increasing Long

13,656

3.2245 GBP

0.01p ordinary

SWAP

Increasing Long

6,023

3.2450 GBP

0.01p ordinary

SWAP

Increasing Long

6,649

3.2536 GBP

0.01p ordinary

SWAP

Increasing Long

8,007

3.2594 GBP

0.01p ordinary

SWAP

Increasing Long

1,089

3.2603 GBP

0.01p ordinary

SWAP

Increasing Long

34,215

3.2620 GBP

0.01p ordinary

SWAP

Increasing Long

34,872

3.2671 GBP

0.01p ordinary

SWAP

Increasing Long

595

3.2673 GBP

0.01p ordinary

SWAP

Increasing Long

1,208

3.2777 GBP

0.01p ordinary

SWAP

Increasing Long

5,026

3.2788 GBP

0.01p ordinary

SWAP

Increasing Long

438

3.2802 GBP

0.01p ordinary

SWAP

Increasing Long

10,626

3.3053 GBP

0.01p ordinary

SWAP

Increasing Long

2,100

3.3129 GBP

0.01p ordinary

SWAP

Increasing Long

468

3.3175 GBP

0.01p ordinary

SWAP

Increasing Long

216

3.3193 GBP

0.01p ordinary

SWAP

Decreasing Long

124,086

3.2150 GBP

0.01p ordinary

SWAP

Decreasing Long

667

3.2200 GBP

0.01p ordinary

SWAP

Decreasing Long

300

3.2450 GBP

0.01p ordinary

SWAP

Decreasing Long

394

3.2585 GBP

0.01p ordinary

SWAP

Decreasing Long

234

3.2700 GBP

0.01p ordinary

SWAP

Decreasing Long

12,000

3.2782 GBP

0.01p ordinary

SWAP

Decreasing Long

3,269

3.2899 GBP

0.01p ordinary

SWAP

Decreasing Long

169

3.3250 GBP

0.01p ordinary

CFD

Increasing Long

13,040

3.2150 GBP

0.01p ordinary

CFD

Increasing Long

26,846

3.2652 GBP

0.01p ordinary

CFD

Increasing Long

1,786

3.2690 GBP

0.01p ordinary

CFD

Increasing Long

1,908

3.2726 GBP

0.01p ordinary

CFD

Increasing Long

5,984

3.2991 GBP

0.01p ordinary

CFD

Increasing Long

511

3.3250 GBP

0.01p ordinary

CFD

Decreasing Long

11,788

3.2150 GBP

0.01p ordinary

CFD

Decreasing Long

12,472

3.2423 GBP

0.01p ordinary

CFD

Decreasing Long

1,966

3.2441 GBP

0.01p ordinary

CFD

Decreasing Long

2,072

3.2452 GBP

0.01p ordinary

CFD

Decreasing Long

20,209

3.2527 GBP

0.01p ordinary

CFD

Decreasing Long

1,626

3.2796 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:

08 Jan 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213