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:

06 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:

2,397,081

1.98%

1,912,771

1.58%

(2)

Cash-settled derivatives:

1,708,604

1.41%

1,464,973

1.20%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,105,685

3.39%

3,377,744

2.78%

(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

100,881

3.2950 GBP

0.01p ordinary

Purchase

38,255

3.3307 GBP

0.01p ordinary

Purchase

29,149

3.3024 GBP

0.01p ordinary

Purchase

18,935

3.3189 GBP

0.01p ordinary

Purchase

10,410

3.3278 GBP

0.01p ordinary

Purchase

7,770

3.3175 GBP

0.01p ordinary

Purchase

5,036

3.3058 GBP

0.01p ordinary

Purchase

4,505

3.3150 GBP

0.01p ordinary

Purchase

3,380

3.3200 GBP

0.01p ordinary

Purchase

3,020

3.3517 GBP

0.01p ordinary

Purchase

2,056

3.3850 GBP

0.01p ordinary

Purchase

1,813

3.3500 GBP

0.01p ordinary

Purchase

1,768

3.3521 GBP

0.01p ordinary

Purchase

1,370

3.3000 GBP

0.01p ordinary

Purchase

1,122

3.3250 GBP

0.01p ordinary

Purchase

1,098

3.3425 GBP

0.01p ordinary

Purchase

930

3.3047 GBP

0.01p ordinary

Purchase

920

3.3100 GBP

0.01p ordinary

Purchase

767

3.3050 GBP

0.01p ordinary

Purchase

400

3.3549 GBP

0.01p ordinary

Purchase

373

3.3217 GBP

0.01p ordinary

Purchase

351

3.2850 GBP

0.01p ordinary

Purchase

315

3.2900 GBP

0.01p ordinary

Purchase

300

3.3900 GBP

0.01p ordinary

Purchase

216

3.3600 GBP

0.01p ordinary

Purchase

212

3.3001 GBP

0.01p ordinary

Purchase

142

3.3005 GBP

0.01p ordinary

Purchase

132

3.3300 GBP

0.01p ordinary

Purchase

86

3.2800 GBP

0.01p ordinary

Purchase

58

3.3450 GBP

0.01p ordinary

Purchase

46

3.3750 GBP

0.01p ordinary

Purchase

40

3.3550 GBP

0.01p ordinary

Purchase

34

3.3350 GBP

0.01p ordinary

Sale

78,357

3.2950 GBP

0.01p ordinary

Sale

70,070

3.3164 GBP

0.01p ordinary

Sale

40,375

3.3026 GBP

0.01p ordinary

Sale

35,039

3.3387 GBP

0.01p ordinary

Sale

15,895

3.3357 GBP

0.01p ordinary

Sale

14,170

3.3264 GBP

0.01p ordinary

Sale

11,722

3.2983 GBP

0.01p ordinary

Sale

10,845

3.3531 GBP

0.01p ordinary

Sale

9,606

3.3110 GBP

0.01p ordinary

Sale

7,479

3.3028 GBP

0.01p ordinary

Sale

7,324

3.3171 GBP

0.01p ordinary

Sale

7,048

3.3495 GBP

0.01p ordinary

Sale

5,392

3.3035 GBP

0.01p ordinary

Sale

4,182

3.3189 GBP

0.01p ordinary

Sale

3,758

3.3173 GBP

0.01p ordinary

Sale

3,380

3.3200 GBP

0.01p ordinary

Sale

3,315

3.2900 GBP

0.01p ordinary

Sale

2,612

3.3150 GBP

0.01p ordinary

Sale

2,241

3.3492 GBP

0.01p ordinary

Sale

2,056

3.3109 GBP

0.01p ordinary

Sale

1,705

3.3100 GBP

0.01p ordinary

Sale

1,465

3.3250 GBP

0.01p ordinary

Sale

1,458

3.3125 GBP

0.01p ordinary

Sale

1,406

3.3145 GBP

0.01p ordinary

Sale

1,370

3.3000 GBP

0.01p ordinary

Sale

976

3.3050 GBP

0.01p ordinary

Sale

877

3.3069 GBP

0.01p ordinary

Sale

781

3.3500 GBP

0.01p ordinary

Sale

351

3.2850 GBP

0.01p ordinary

Sale

300

3.3850 GBP

0.01p ordinary

Sale

300

3.3900 GBP

0.01p ordinary

Sale

216

3.3600 GBP

0.01p ordinary

Sale

132

3.3300 GBP

0.01p ordinary

Sale

86

3.2800 GBP

0.01p ordinary

Sale

58

3.3450 GBP

0.01p ordinary

Sale

46

3.3750 GBP

0.01p ordinary

Sale

45

3.3650 GBP

0.01p ordinary

Sale

34

3.3350 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 Short

350

3.2200 GBP

0.01p ordinary

SWAP

Decreasing Short

1,322

3.2625 GBP

0.01p ordinary

SWAP

Decreasing Short

72,866

3.2747 GBP

0.01p ordinary

SWAP

Opening Long

44,542

3.2756 GBP

0.01p ordinary

SWAP

Increasing Long

3,000

3.2896 GBP

0.01p ordinary

SWAP

Increasing Long

24,667

3.2950 GBP

0.01p ordinary

SWAP

Increasing Long

1,406

3.3145 GBP

0.01p ordinary

SWAP

Increasing Long

728

3.3212 GBP

0.01p ordinary

SWAP

Increasing Long

254

3.3216 GBP

0.01p ordinary

SWAP

Increasing Long

46,081

3.3257 GBP

0.01p ordinary

SWAP

Increasing Long

14,170

3.3264 GBP

0.01p ordinary

SWAP

Increasing Long

573

3.3268 GBP

0.01p ordinary

SWAP

Increasing Long

87

3.3294 GBP

0.01p ordinary

SWAP

Increasing Long

35,039

3.3387 GBP

0.01p ordinary

SWAP

Increasing Long

245

3.3399 GBP

0.01p ordinary

SWAP

Increasing Long

39

3.3461 GBP

0.01p ordinary

SWAP

Increasing Long

2,241

3.3492 GBP

0.01p ordinary

SWAP

Increasing Long

36,029

3.3494 GBP

0.01p ordinary

SWAP

Increasing Long

1,417

3.3496 GBP

0.01p ordinary

SWAP

Increasing Long

1,100

3.3497 GBP

0.01p ordinary

SWAP

Increasing Long

4,766

3.3498 GBP

0.01p ordinary

SWAP

Increasing Long

5,486

3.3499 GBP

0.01p ordinary

SWAP

Increasing Long

10,845

3.3531 GBP

0.01p ordinary

SWAP

Increasing Long

27

3.3900 GBP

0.01p ordinary

SWAP

Decreasing Long

280

3.2150 GBP

0.01p ordinary

SWAP

Decreasing Long

22,467

3.2160 GBP

0.01p ordinary

SWAP

Decreasing Long

34,855

3.2461 GBP

0.01p ordinary

SWAP

Decreasing Long

25,159

3.2950 GBP

0.01p ordinary

SWAP

Decreasing Long

5,472

3.2959 GBP

0.01p ordinary

SWAP

Decreasing Long

2,159

3.3110 GBP

0.01p ordinary

SWAP

Decreasing Long

3,993

3.3146 GBP

0.01p ordinary

SWAP

Decreasing Long

3,000

3.3153 GBP

0.01p ordinary

SWAP

Decreasing Long

1,567

3.3181 GBP

0.01p ordinary

SWAP

Decreasing Long

12,018

3.3256 GBP

0.01p ordinary

SWAP

Decreasing Long

24,670

3.3339 GBP

0.01p ordinary

SWAP

Decreasing Long

504

3.3364 GBP

0.01p ordinary

SWAP

Decreasing Long

1,098

3.3425 GBP

0.01p ordinary

SWAP

Decreasing Long

12,242

3.3500 GBP

0.01p ordinary

SWAP

Decreasing Long

3,020

3.3517 GBP

0.01p ordinary

SWAP

Decreasing Long

1,768

3.3521 GBP

0.01p ordinary

SWAP

Decreasing Long

1,756

3.3850 GBP

0.01p ordinary

CFD

Increasing Long

11,722

3.2983 GBP

0.01p ordinary

CFD

Increasing Long

44,356

3.3003 GBP

0.01p ordinary

CFD

Increasing Long

1,877

3.3270 GBP

0.01p ordinary

CFD

Increasing Long

598

3.3508 GBP

0.01p ordinary

CFD

Decreasing Long

8,668

3.3187 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:

07 Jan 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213