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:

21 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:

2,652,294

2.16%

2,426,061

1.97%

(2)

Cash-settled derivatives:

2,216,738

1.80%

1,722,551

1.40%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,869,032

3.96%

4,148,612

3.38%

(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

299,450

3.3950 GBP

0.01p ordinary

Purchase

16,774

3.3857 GBP

0.01p ordinary

Purchase

16,492

3.3521 GBP

0.01p ordinary

Purchase

15,548

3.3947 GBP

0.01p ordinary

Purchase

9,121

3.3400 GBP

0.01p ordinary

Purchase

6,898

3.3635 GBP

0.01p ordinary

Purchase

5,567

3.3694 GBP

0.01p ordinary

Purchase

4,827

3.3366 GBP

0.01p ordinary

Purchase

4,474

3.3308 GBP

0.01p ordinary

Purchase

3,645

3.3350 GBP

0.01p ordinary

Purchase

3,225

3.3300 GBP

0.01p ordinary

Purchase

3,118

3.3516 GBP

0.01p ordinary

Purchase

2,401

3.3332 GBP

0.01p ordinary

Purchase

2,263

3.3112 GBP

0.01p ordinary

Purchase

2,189

3.3250 GBP

0.01p ordinary

Purchase

1,915

3.3382 GBP

0.01p ordinary

Purchase

1,261

3.3346 GBP

0.01p ordinary

Purchase

1,166

3.3338 GBP

0.01p ordinary

Purchase

716

3.3550 GBP

0.01p ordinary

Purchase

451

3.3475 GBP

0.01p ordinary

Purchase

429

3.3450 GBP

0.01p ordinary

Purchase

389

3.3349 GBP

0.01p ordinary

Purchase

361

3.4000 GBP

0.01p ordinary

Purchase

275

3.3525 GBP

0.01p ordinary

Purchase

168

3.3900 GBP

0.01p ordinary

Purchase

99

3.3500 GBP

0.01p ordinary

Purchase

93

3.3850 GBP

0.01p ordinary

Purchase

89

3.4050 GBP

0.01p ordinary

Purchase

80

3.4150 GBP

0.01p ordinary

Purchase

17

3.4600 GBP

0.01p ordinary

Purchase

5

3.3899 GBP

0.01p ordinary

Sale

78,353

3.3950 GBP

0.01p ordinary

Sale

70,662

3.3826 GBP

0.01p ordinary

Sale

20,737

3.3490 GBP

0.01p ordinary

Sale

18,795

3.3574 GBP

0.01p ordinary

Sale

14,366

3.3413 GBP

0.01p ordinary

Sale

14,112

3.3453 GBP

0.01p ordinary

Sale

8,126

3.3523 GBP

0.01p ordinary

Sale

8,116

3.3341 GBP

0.01p ordinary

Sale

5,000

3.3291 GBP

0.01p ordinary

Sale

3,570

3.3598 GBP

0.01p ordinary

Sale

3,369

3.3299 GBP

0.01p ordinary

Sale

3,146

3.3331 GBP

0.01p ordinary

Sale

2,712

3.3720 GBP

0.01p ordinary

Sale

1,855

3.3671 GBP

0.01p ordinary

Sale

1,763

3.3739 GBP

0.01p ordinary

Sale

1,317

3.3450 GBP

0.01p ordinary

Sale

1,016

3.3530 GBP

0.01p ordinary

Sale

942

3.3580 GBP

0.01p ordinary

Sale

838

3.3250 GBP

0.01p ordinary

Sale

699

3.3573 GBP

0.01p ordinary

Sale

677

3.3637 GBP

0.01p ordinary

Sale

645

3.3350 GBP

0.01p ordinary

Sale

451

3.3475 GBP

0.01p ordinary

Sale

431

3.3400 GBP

0.01p ordinary

Sale

361

3.4000 GBP

0.01p ordinary

Sale

169

3.3550 GBP

0.01p ordinary

Sale

168

3.3900 GBP

0.01p ordinary

Sale

164

3.3634 GBP

0.01p ordinary

Sale

99

3.3500 GBP

0.01p ordinary

Sale

93

3.3850 GBP

0.01p ordinary

Sale

89

3.3300 GBP

0.01p ordinary

Sale

89

3.4050 GBP

0.01p ordinary

Sale

80

3.4150 GBP

0.01p ordinary

Sale

78

3.3948 GBP

0.01p ordinary

Sale

75

3.3949 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

3,301

3.3528 GBP

0.01p ordinary

SWAP

Decreasing Long

2,884

3.3657 GBP

0.01p ordinary

SWAP

Increasing Long

3,369

3.3299 GBP

0.01p ordinary

SWAP

Increasing Long

980

3.3398 GBP

0.01p ordinary

SWAP

Increasing Long

1,073

3.3449 GBP

0.01p ordinary

SWAP

Increasing Long

888

3.3450 GBP

0.01p ordinary

SWAP

Increasing Long

14,112

3.3453 GBP

0.01p ordinary

SWAP

Increasing Long

498

3.3475 GBP

0.01p ordinary

SWAP

Increasing Long

20,737

3.3490 GBP

0.01p ordinary

SWAP

Increasing Long

17,590

3.3495 GBP

0.01p ordinary

SWAP

Increasing Long

8,126

3.3523 GBP

0.01p ordinary

SWAP

Increasing Long

1,016

3.3530 GBP

0.01p ordinary

SWAP

Increasing Long

104

3.3628 GBP

0.01p ordinary

SWAP

Increasing Long

8,088

3.3701 GBP

0.01p ordinary

SWAP

Increasing Long

446

3.3790 GBP

0.01p ordinary

SWAP

Increasing Long

1,172

3.3826 GBP

0.01p ordinary

SWAP

Increasing Long

1,419

3.3947 GBP

0.01p ordinary

SWAP

Increasing Long

153

3.3948 GBP

0.01p ordinary

SWAP

Increasing Long

52,385

3.3950 GBP

0.01p ordinary

SWAP

Increasing Long

19

3.4596 GBP

0.01p ordinary

SWAP

Decreasing Long

4,428

3.3301 GBP

0.01p ordinary

SWAP

Decreasing Long

32,019

3.3378 GBP

0.01p ordinary

SWAP

Decreasing Long

822

3.3541 GBP

0.01p ordinary

SWAP

Decreasing Long

5,567

3.3694 GBP

0.01p ordinary

SWAP

Decreasing Long

4,347

3.3951 GBP

0.01p ordinary

SWAP

Decreasing Long

46

3.4000 GBP

0.01p ordinary

SWAP

Decreasing Long

17

3.4600 GBP

0.01p ordinary

CFD

Increasing Long

1,704

3.3351 GBP

0.01p ordinary

CFD

Increasing Long

1

3.3500 GBP

0.01p ordinary

CFD

Increasing Long

164

3.3634 GBP

0.01p ordinary

CFD

Increasing Long

10,796

3.3850 GBP

0.01p ordinary

CFD

Increasing Long

12,938

3.3950 GBP

0.01p ordinary

CFD

Decreasing Long

100

3.3400 GBP

0.01p ordinary

CFD

Opening Short

258,790

3.3950 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:

22 Jan 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213