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:

12 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:

2,207,801

1.82%

1,964,398

1.62%

(2)

Cash-settled derivatives:

1,759,052

1.45%

1,274,360

1.05%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

3,966,853

3.28%

3,238,758

2.67%

(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

28,684

3.3027 GBP

0.01p ordinary

Purchase

26,978

3.2250 GBP

0.01p ordinary

Purchase

19,801

3.2555 GBP

0.01p ordinary

Purchase

6,735

3.2976 GBP

0.01p ordinary

Purchase

5,513

3.2868 GBP

0.01p ordinary

Purchase

3,623

3.2456 GBP

0.01p ordinary

Purchase

3,400

3.2938 GBP

0.01p ordinary

Purchase

3,014

3.3026 GBP

0.01p ordinary

Purchase

2,751

3.2813 GBP

0.01p ordinary

Purchase

2,014

3.2850 GBP

0.01p ordinary

Purchase

1,650

3.2336 GBP

0.01p ordinary

Purchase

1,426

3.2841 GBP

0.01p ordinary

Purchase

854

3.3059 GBP

0.01p ordinary

Purchase

788

3.2700 GBP

0.01p ordinary

Purchase

502

3.2909 GBP

0.01p ordinary

Purchase

409

3.2559 GBP

0.01p ordinary

Purchase

340

3.2900 GBP

0.01p ordinary

Purchase

337

3.2800 GBP

0.01p ordinary

Purchase

302

3.2500 GBP

0.01p ordinary

Purchase

260

3.2950 GBP

0.01p ordinary

Purchase

179

3.3050 GBP

0.01p ordinary

Purchase

177

3.3000 GBP

0.01p ordinary

Purchase

102

3.2650 GBP

0.01p ordinary

Purchase

92

3.2750 GBP

0.01p ordinary

Purchase

87

3.3250 GBP

0.01p ordinary

Purchase

86

3.2550 GBP

0.01p ordinary

Sale

50,124

3.3010 GBP

0.01p ordinary

Sale

47,860

3.2742 GBP

0.01p ordinary

Sale

33,618

3.2306 GBP

0.01p ordinary

Sale

33,318

3.2596 GBP

0.01p ordinary

Sale

18,508

3.2631 GBP

0.01p ordinary

Sale

14,558

3.2819 GBP

0.01p ordinary

Sale

14,521

3.3094 GBP

0.01p ordinary

Sale

14,026

3.3005 GBP

0.01p ordinary

Sale

12,042

3.3083 GBP

0.01p ordinary

Sale

11,395

3.2988 GBP

0.01p ordinary

Sale

9,176

3.2788 GBP

0.01p ordinary

Sale

8,697

3.2250 GBP

0.01p ordinary

Sale

7,533

3.3055 GBP

0.01p ordinary

Sale

3,336

3.2442 GBP

0.01p ordinary

Sale

2,811

3.2887 GBP

0.01p ordinary

Sale

2,571

3.2873 GBP

0.01p ordinary

Sale

2,189

3.2900 GBP

0.01p ordinary

Sale

1,934

3.2912 GBP

0.01p ordinary

Sale

1,417

3.2871 GBP

0.01p ordinary

Sale

1,311

3.2963 GBP

0.01p ordinary

Sale

1,300

3.2966 GBP

0.01p ordinary

Sale

1,216

3.2850 GBP

0.01p ordinary

Sale

978

3.2860 GBP

0.01p ordinary

Sale

925

3.2700 GBP

0.01p ordinary

Sale

829

3.2650 GBP

0.01p ordinary

Sale

604

3.2500 GBP

0.01p ordinary

Sale

460

3.2434 GBP

0.01p ordinary

Sale

457

3.2847 GBP

0.01p ordinary

Sale

337

3.2800 GBP

0.01p ordinary

Sale

179

3.3050 GBP

0.01p ordinary

Sale

177

3.3000 GBP

0.01p ordinary

Sale

92

3.2750 GBP

0.01p ordinary

Sale

87

3.3250 GBP

0.01p ordinary

Sale

86

3.2550 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

Increasing Long

2,438

3.2722 GBP

0.01p ordinary

SWAP

Decreasing Long

1,647

3.2857 GBP

0.01p ordinary

SWAP

Increasing Long

20,000

3.2246 GBP

0.01p ordinary

SWAP

Increasing Long

2,414

3.2250 GBP

0.01p ordinary

SWAP

Increasing Long

10,172

3.2306 GBP

0.01p ordinary

SWAP

Increasing Long

33,318

3.2596 GBP

0.01p ordinary

SWAP

Increasing Long

17,079

3.2604 GBP

0.01p ordinary

SWAP

Increasing Long

159

3.2640 GBP

0.01p ordinary

SWAP

Increasing Long

41

3.2708 GBP

0.01p ordinary

SWAP

Increasing Long

95

3.2731 GBP

0.01p ordinary

SWAP

Increasing Long

47,860

3.2742 GBP

0.01p ordinary

SWAP

Increasing Long

133

3.2785 GBP

0.01p ordinary

SWAP

Increasing Long

9,176

3.2788 GBP

0.01p ordinary

SWAP

Increasing Long

187

3.2813 GBP

0.01p ordinary

SWAP

Increasing Long

2,146

3.2840 GBP

0.01p ordinary

SWAP

Increasing Long

1,074

3.2850 GBP

0.01p ordinary

SWAP

Increasing Long

5,330

3.2890 GBP

0.01p ordinary

SWAP

Increasing Long

982

3.2896 GBP

0.01p ordinary

SWAP

Increasing Long

300

3.2897 GBP

0.01p ordinary

SWAP

Increasing Long

1,161

3.2900 GBP

0.01p ordinary

SWAP

Increasing Long

1,714

3.2924 GBP

0.01p ordinary

SWAP

Increasing Long

1,429

3.2949 GBP

0.01p ordinary

SWAP

Increasing Long

11,395

3.2987 GBP

0.01p ordinary

SWAP

Increasing Long

14,026

3.3005 GBP

0.01p ordinary

SWAP

Increasing Long

50,124

3.3010 GBP

0.01p ordinary

SWAP

Increasing Long

5

3.3500 GBP

0.01p ordinary

SWAP

Decreasing Long

18,579

3.2250 GBP

0.01p ordinary

SWAP

Decreasing Long

6,171

3.2271 GBP

0.01p ordinary

SWAP

Decreasing Long

5

3.2650 GBP

0.01p ordinary

SWAP

Decreasing Long

2,097

3.2717 GBP

0.01p ordinary

SWAP

Decreasing Long

2,751

3.2813 GBP

0.01p ordinary

SWAP

Decreasing Long

1,426

3.2841 GBP

0.01p ordinary

SWAP

Decreasing Long

1,872

3.2850 GBP

0.01p ordinary

SWAP

Decreasing Long

3,014

3.3026 GBP

0.01p ordinary

CFD

Increasing Long

1,917

3.2681 GBP

0.01p ordinary

CFD

Increasing Long

163

3.2848 GBP

0.01p ordinary

CFD

Decreasing Long

8,572

3.2953 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:

13 Jan 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213