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:

05 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:

2,460,034

2.03%

1,865,142

1.54%

(2)

Cash-settled derivatives:

1,605,385

1.33%

1,562,891

1.29%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,065,419

3.36%

3,428,033

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

110,000

3.2228 GBP

0.01p ordinary

Purchase

76,544

3.3500 GBP

0.01p ordinary

Purchase

42,761

3.3113 GBP

0.01p ordinary

Purchase

34,855

3.2461 GBP

0.01p ordinary

Purchase

34,251

3.2091 GBP

0.01p ordinary

Purchase

22,467

3.2160 GBP

0.01p ordinary

Purchase

19,960

3.2800 GBP

0.01p ordinary

Purchase

11,778

3.3188 GBP

0.01p ordinary

Purchase

9,444

3.2108 GBP

0.01p ordinary

Purchase

8,167

3.2040 GBP

0.01p ordinary

Purchase

5,200

3.3386 GBP

0.01p ordinary

Purchase

5,000

3.1500 GBP

0.01p ordinary

Purchase

3,946

3.2150 GBP

0.01p ordinary

Purchase

2,482

3.2566 GBP

0.01p ordinary

Purchase

2,256

3.2156 GBP

0.01p ordinary

Purchase

2,228

3.2577 GBP

0.01p ordinary

Purchase

1,996

3.3700 GBP

0.01p ordinary

Purchase

1,531

3.1984 GBP

0.01p ordinary

Purchase

1,387

3.1991 GBP

0.01p ordinary

Purchase

1,385

3.1990 GBP

0.01p ordinary

Purchase

1,229

3.2668 GBP

0.01p ordinary

Purchase

1,131

3.2200 GBP

0.01p ordinary

Purchase

1,125

3.2100 GBP

0.01p ordinary

Purchase

1,002

3.2000 GBP

0.01p ordinary

Purchase

1,001

3.2499 GBP

0.01p ordinary

Purchase

879

3.3650 GBP

0.01p ordinary

Purchase

824

3.2900 GBP

0.01p ordinary

Purchase

818

3.3800 GBP

0.01p ordinary

Purchase

805

3.2700 GBP

0.01p ordinary

Purchase

794

3.2450 GBP

0.01p ordinary

Purchase

706

3.3750 GBP

0.01p ordinary

Purchase

702

3.2300 GBP

0.01p ordinary

Purchase

672

3.2350 GBP

0.01p ordinary

Purchase

645

3.2709 GBP

0.01p ordinary

Purchase

519

3.3600 GBP

0.01p ordinary

Purchase

492

3.2950 GBP

0.01p ordinary

Purchase

481

3.2550 GBP

0.01p ordinary

Purchase

473

3.2250 GBP

0.01p ordinary

Purchase

467

3.3100 GBP

0.01p ordinary

Purchase

371

3.2850 GBP

0.01p ordinary

Purchase

346

3.3050 GBP

0.01p ordinary

Purchase

340

3.3150 GBP

0.01p ordinary

Purchase

275

3.3850 GBP

0.01p ordinary

Purchase

240

3.2050 GBP

0.01p ordinary

Purchase

189

3.2500 GBP

0.01p ordinary

Purchase

173

3.2750 GBP

0.01p ordinary

Purchase

157

3.2600 GBP

0.01p ordinary

Purchase

147

3.3085 GBP

0.01p ordinary

Purchase

133

3.3250 GBP

0.01p ordinary

Purchase

91

3.3450 GBP

0.01p ordinary

Purchase

90

3.3000 GBP

0.01p ordinary

Purchase

90

3.3350 GBP

0.01p ordinary

Purchase

80

3.2650 GBP

0.01p ordinary

Purchase

38

3.2400 GBP

0.01p ordinary

Sale

100,473

3.2250 GBP

0.01p ordinary

Sale

72,866

3.2747 GBP

0.01p ordinary

Sale

65,020

3.2469 GBP

0.01p ordinary

Sale

63,954

3.3049 GBP

0.01p ordinary

Sale

49,713

3.3500 GBP

0.01p ordinary

Sale

44,542

3.2756 GBP

0.01p ordinary

Sale

41,376

3.2299 GBP

0.01p ordinary

Sale

36,029

3.3494 GBP

0.01p ordinary

Sale

30,000

3.1633 GBP

0.01p ordinary

Sale

23,159

3.2110 GBP

0.01p ordinary

Sale

21,359

3.2289 GBP

0.01p ordinary

Sale

20,161

3.2025 GBP

0.01p ordinary

Sale

16,910

3.2346 GBP

0.01p ordinary

Sale

13,242

3.2223 GBP

0.01p ordinary

Sale

10,588

3.2201 GBP

0.01p ordinary

Sale

9,868

3.3156 GBP

0.01p ordinary

Sale

4,766

3.3498 GBP

0.01p ordinary

Sale

3,189

3.2500 GBP

0.01p ordinary

Sale

2,995

3.2663 GBP

0.01p ordinary

Sale

2,740

3.3298 GBP

0.01p ordinary

Sale

1,549

3.2946 GBP

0.01p ordinary

Sale

1,439

3.2200 GBP

0.01p ordinary

Sale

1,322

3.2625 GBP

0.01p ordinary

Sale

1,217

3.2653 GBP

0.01p ordinary

Sale

1,125

3.2100 GBP

0.01p ordinary

Sale

928

3.3406 GBP

0.01p ordinary

Sale

925

3.3600 GBP

0.01p ordinary

Sale

879

3.3650 GBP

0.01p ordinary

Sale

857

3.2800 GBP

0.01p ordinary

Sale

824

3.2900 GBP

0.01p ordinary

Sale

818

3.3800 GBP

0.01p ordinary

Sale

805

3.2700 GBP

0.01p ordinary

Sale

796

3.3700 GBP

0.01p ordinary

Sale

706

3.3750 GBP

0.01p ordinary

Sale

702

3.2300 GBP

0.01p ordinary

Sale

508

3.2000 GBP

0.01p ordinary

Sale

492

3.2950 GBP

0.01p ordinary

Sale

484

3.2150 GBP

0.01p ordinary

Sale

481

3.2550 GBP

0.01p ordinary

Sale

467

3.3100 GBP

0.01p ordinary

Sale

371

3.2850 GBP

0.01p ordinary

Sale

365

3.2129 GBP

0.01p ordinary

Sale

346

3.3050 GBP

0.01p ordinary

Sale

340

3.3150 GBP

0.01p ordinary

Sale

275

3.3850 GBP

0.01p ordinary

Sale

240

3.2050 GBP

0.01p ordinary

Sale

173

3.2750 GBP

0.01p ordinary

Sale

133

3.3250 GBP

0.01p ordinary

Sale

91

3.3450 GBP

0.01p ordinary

Sale

90

3.3000 GBP

0.01p ordinary

Sale

90

3.3350 GBP

0.01p ordinary

Sale

80

3.2650 GBP

0.01p ordinary

Sale

38

3.2400 GBP

0.01p ordinary

Sale

38

3.2600 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

Opening Long

93,080

3.1870 GBP

0.01p ordinary

SWAP

Increasing Long

157

3.1997 GBP

0.01p ordinary

SWAP

Increasing Long

260

3.2055 GBP

0.01p ordinary

SWAP

Increasing Long

13,242

3.2223 GBP

0.01p ordinary

SWAP

Increasing Long

1,531

3.2373 GBP

0.01p ordinary

SWAP

Increasing Long

55,627

3.2421 GBP

0.01p ordinary

SWAP

Increasing Long

641

3.2476 GBP

0.01p ordinary

SWAP

Increasing Long

928

3.2675 GBP

0.01p ordinary

SWAP

Increasing Long

24,434

3.2801 GBP

0.01p ordinary

SWAP

Increasing Long

7,862

3.2823 GBP

0.01p ordinary

SWAP

Increasing Long

4,933

3.2838 GBP

0.01p ordinary

SWAP

Increasing Long

1,717

3.2938 GBP

0.01p ordinary

SWAP

Increasing Long

9,868

3.3156 GBP

0.01p ordinary

SWAP

Increasing Long

2,989

3.3292 GBP

0.01p ordinary

SWAP

Increasing Long

19,330

3.3500 GBP

0.01p ordinary

SWAP

Decreasing Long

216

3.1800 GBP

0.01p ordinary

SWAP

Decreasing Long

40,000

3.1894 GBP

0.01p ordinary

SWAP

Decreasing Long

916

3.2418 GBP

0.01p ordinary

SWAP

Decreasing Long

2,228

3.2577 GBP

0.01p ordinary

SWAP

Decreasing Long

119

3.2600 GBP

0.01p ordinary

SWAP

Decreasing Long

1,013

3.2630 GBP

0.01p ordinary

SWAP

Decreasing Long

216

3.2850 GBP

0.01p ordinary

SWAP

Decreasing Long

15,344

3.3500 GBP

0.01p ordinary

CFD

Opening Short

19,594

3.2717 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:

06 Jan 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213