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:

27 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:

2,132,820

1.76%

2,645,128

2.18%

(2)

Cash-settled derivatives:

2,415,088

1.99%

1,193,447

0.99%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,547,908

3.76%

3,838,575

3.17%

(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

44,687

3.2050 GBP

0.01p ordinary

Purchase

36,324

3.3197 GBP

0.01p ordinary

Purchase

19,217

3.2056 GBP

0.01p ordinary

Purchase

17,761

3.2578 GBP

0.01p ordinary

Purchase

5,125

3.2550 GBP

0.01p ordinary

Purchase

4,160

3.2916 GBP

0.01p ordinary

Purchase

4,000

3.3300 GBP

0.01p ordinary

Purchase

2,640

3.3186 GBP

0.01p ordinary

Purchase

2,605

3.3025 GBP

0.01p ordinary

Purchase

2,500

3.3550 GBP

0.01p ordinary

Purchase

2,420

3.3310 GBP

0.01p ordinary

Purchase

2,024

3.2450 GBP

0.01p ordinary

Purchase

687

3.3500 GBP

0.01p ordinary

Purchase

312

3.2427 GBP

0.01p ordinary

Purchase

296

3.3250 GBP

0.01p ordinary

Purchase

273

3.2691 GBP

0.01p ordinary

Purchase

157

3.3100 GBP

0.01p ordinary

Purchase

112

3.3400 GBP

0.01p ordinary

Purchase

54

3.3549 GBP

0.01p ordinary

Purchase

52

3.2800 GBP

0.01p ordinary

Purchase

42

3.2500 GBP

0.01p ordinary

Purchase

35

3.2350 GBP

0.01p ordinary

Purchase

31

3.2600 GBP

0.01p ordinary

Purchase

17

3.3200 GBP

0.01p ordinary

Purchase

17

3.3350 GBP

0.01p ordinary

Purchase

14

3.2700 GBP

0.01p ordinary

Purchase

14

3.2750 GBP

0.01p ordinary

Sale

399,312

3.2050 GBP

0.01p ordinary

Sale

38,102

3.3484 GBP

0.01p ordinary

Sale

34,003

3.2621 GBP

0.01p ordinary

Sale

23,862

3.3191 GBP

0.01p ordinary

Sale

10,579

3.3263 GBP

0.01p ordinary

Sale

8,929

3.3286 GBP

0.01p ordinary

Sale

5,048

3.2973 GBP

0.01p ordinary

Sale

3,429

3.2650 GBP

0.01p ordinary

Sale

3,284

3.3024 GBP

0.01p ordinary

Sale

2,999

3.3316 GBP

0.01p ordinary

Sale

2,641

3.2736 GBP

0.01p ordinary

Sale

2,400

3.3520 GBP

0.01p ordinary

Sale

1,836

3.3266 GBP

0.01p ordinary

Sale

1,409

3.2539 GBP

0.01p ordinary

Sale

894

3.2453 GBP

0.01p ordinary

Sale

418

3.2825 GBP

0.01p ordinary

Sale

157

3.3100 GBP

0.01p ordinary

Sale

143

3.3151 GBP

0.01p ordinary

Sale

125

3.3148 GBP

0.01p ordinary

Sale

123

3.3147 GBP

0.01p ordinary

Sale

112

3.3400 GBP

0.01p ordinary

Sale

65

3.3250 GBP

0.01p ordinary

Sale

52

3.2800 GBP

0.01p ordinary

Sale

42

3.2500 GBP

0.01p ordinary

Sale

35

3.2350 GBP

0.01p ordinary

Sale

31

3.3500 GBP

0.01p ordinary

Sale

31

3.2600 GBP

0.01p ordinary

Sale

24

3.2450 GBP

0.01p ordinary

Sale

21

3.2550 GBP

0.01p ordinary

Sale

17

3.3200 GBP

0.01p ordinary

Sale

17

3.3350 GBP

0.01p ordinary

Sale

14

3.2750 GBP

0.01p ordinary

Sale

14

3.2700 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

348,410

3.2050 GBP

0.01p ordinary

SWAP

Increasing Long

15,141

3.2485 GBP

0.01p ordinary

SWAP

Increasing Long

12,213

3.2515 GBP

0.01p ordinary

SWAP

Increasing Long

1,312

3.2571 GBP

0.01p ordinary

SWAP

Increasing Long

90

3.2647 GBP

0.01p ordinary

SWAP

Increasing Long

3,429

3.2650 GBP

0.01p ordinary

SWAP

Increasing Long

239

3.2807 GBP

0.01p ordinary

SWAP

Increasing Long

2,803

3.2921 GBP

0.01p ordinary

SWAP

Increasing Long

629

3.2992 GBP

0.01p ordinary

SWAP

Increasing Long

1,501

3.3031 GBP

0.01p ordinary

SWAP

Increasing Long

2,245

3.3037 GBP

0.01p ordinary

SWAP

Increasing Long

112

3.3121 GBP

0.01p ordinary

SWAP

Increasing Long

281

3.3130 GBP

0.01p ordinary

SWAP

Increasing Long

10,579

3.3263 GBP

0.01p ordinary

SWAP

Increasing Long

8,929

3.3286 GBP

0.01p ordinary

SWAP

Increasing Long

2,400

3.3520 GBP

0.01p ordinary

SWAP

Decreasing Long

1,487

3.2050 GBP

0.01p ordinary

SWAP

Decreasing Long

812

3.2051 GBP

0.01p ordinary

SWAP

Decreasing Long

376

3.2369 GBP

0.01p ordinary

SWAP

Decreasing Long

22,539

3.2579 GBP

0.01p ordinary

SWAP

Decreasing Long

4,160

3.2916 GBP

0.01p ordinary

SWAP

Decreasing Long

431

3.3135 GBP

0.01p ordinary

SWAP

Decreasing Long

231

3.3250 GBP

0.01p ordinary

SWAP

Decreasing Long

1,989

3.3348 GBP

0.01p ordinary

SWAP

Decreasing Long

656

3.3500 GBP

0.01p ordinary

CFD

Increasing Long

1,409

3.2539 GBP

0.01p ordinary

CFD

Increasing Long

5,447

3.2700 GBP

0.01p ordinary

CFD

Increasing Long

3,284

3.3024 GBP

0.01p ordinary

CFD

Increasing Long

15,065

3.3100 GBP

0.01p ordinary

CFD

Increasing Long

20,862

3.3191 GBP

0.01p ordinary

CFD

Increasing Long

6,602

3.3198 GBP

0.01p ordinary

CFD

Increasing Long

2,999

3.3316 GBP

0.01p ordinary

CFD

Increasing Long

38,102

3.3484 GBP

0.01p ordinary

CFD

Decreasing Long

17,354

3.2050 GBP

0.01p ordinary

CFD

Decreasing Long

312

3.2427 GBP

0.01p ordinary

CFD

Decreasing Long

273

3.2691 GBP

0.01p ordinary

CFD

Decreasing Long

5,447

3.2700 GBP

0.01p ordinary

CFD

Decreasing Long

2,605

3.3024 GBP

0.01p ordinary

CFD

Decreasing Long

15,065

3.3100 GBP

0.01p ordinary

CFD

Decreasing Long

2,640

3.3186 GBP

0.01p ordinary

CFD

Decreasing Long

36,324

3.3197 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:

28 Jan 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213