Form 8.3 OXFORD BIOMEDICA PLC

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

OXFORD BIOMEDICA 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:

15 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:

50p ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1)

Relevant securities owned

and/or controlled:

214,497

0.18%

901,218

0.75%

(2)

Cash-settled derivatives:

840,473

0.70%

206,167

0.17%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

1,054,970

0.87%

1,107,385

0.92%

(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

50p ordinary

Purchase

135,032

8.8862 GBP

50p ordinary

Purchase

97,663

8.8218 GBP

50p ordinary

Purchase

72,725

9.0058 GBP

50p ordinary

Purchase

60,968

9.1300 GBP

50p ordinary

Purchase

40,000

9.1285 GBP

50p ordinary

Purchase

25,000

9.0131 GBP

50p ordinary

Purchase

15,000

8.8061 GBP

50p ordinary

Purchase

13,912

9.0569 GBP

50p ordinary

Purchase

11,668

8.8165 GBP

50p ordinary

Purchase

9,107

9.0800 GBP

50p ordinary

Purchase

8,162

8.8688 GBP

50p ordinary

Purchase

7,637

9.0685 GBP

50p ordinary

Purchase

4,033

9.0767 GBP

50p ordinary

Purchase

3,389

9.2080 GBP

50p ordinary

Purchase

2,837

9.0973 GBP

50p ordinary

Purchase

2,051

9.2511 GBP

50p ordinary

Purchase

1,315

8.8833 GBP

50p ordinary

Purchase

712

9.4350 GBP

50p ordinary

Purchase

680

9.3500 GBP

50p ordinary

Purchase

555

8.9139 GBP

50p ordinary

Purchase

514

8.7850 GBP

50p ordinary

Purchase

434

8.7700 GBP

50p ordinary

Purchase

277

9.0100 GBP

50p ordinary

Purchase

227

8.9100 GBP

50p ordinary

Purchase

210

8.8700 GBP

50p ordinary

Purchase

204

8.6800 GBP

50p ordinary

Purchase

164

8.9300 GBP

50p ordinary

Purchase

163

9.2100 GBP

50p ordinary

Purchase

127

9.4200 GBP

50p ordinary

Purchase

94

8.8000 GBP

50p ordinary

Purchase

86

8.6600 GBP

50p ordinary

Purchase

80

9.2900 GBP

50p ordinary

Purchase

79

8.6700 GBP

50p ordinary

Purchase

78

9.1000 GBP

50p ordinary

Purchase

69

9.2500 GBP

50p ordinary

Purchase

66

8.6500 GBP

50p ordinary

Purchase

65

9.1200 GBP

50p ordinary

Purchase

59

9.3000 GBP

50p ordinary

Purchase

59

8.7800 GBP

50p ordinary

Purchase

53

8.9050 GBP

50p ordinary

Purchase

49

9.1900 GBP

50p ordinary

Purchase

47

9.2400 GBP

50p ordinary

Purchase

41

9.0700 GBP

50p ordinary

Purchase

31

8.8500 GBP

50p ordinary

Purchase

28

9.0900 GBP

50p ordinary

Purchase

28

9.3100 GBP

50p ordinary

Purchase

26

8.8300 GBP

50p ordinary

Purchase

26

9.1800 GBP

50p ordinary

Purchase

26

9.3400 GBP

50p ordinary

Purchase

23

9.0000 GBP

50p ordinary

Purchase

22

9.4000 GBP

50p ordinary

Purchase

10

8.8600 GBP

50p ordinary

Purchase

10

9.2300 GBP

50p ordinary

Purchase

10

9.4100 GBP

50p ordinary

Purchase

10

9.1600 GBP

50p ordinary

Purchase

10

9.2000 GBP

50p ordinary

Purchase

10

8.7900 GBP

50p ordinary

Sale

43,666

8.7141 GBP

50p ordinary

Sale

36,131

9.2732 GBP

50p ordinary

Sale

35,725

8.9178 GBP

50p ordinary

Sale

34,665

8.9493 GBP

50p ordinary

Sale

25,839

8.9461 GBP

50p ordinary

Sale

24,795

9.0692 GBP

50p ordinary

Sale

22,597

9.0809 GBP

50p ordinary

Sale

20,006

9.1300 GBP

50p ordinary

Sale

9,107

9.0800 GBP

50p ordinary

Sale

8,899

9.0632 GBP

50p ordinary

Sale

8,076

8.9392 GBP

50p ordinary

Sale

4,153

9.1282 GBP

50p ordinary

Sale

2,465

9.0699 GBP

50p ordinary

Sale

1,939

8.9017 GBP

50p ordinary

Sale

1,617

9.0242 GBP

50p ordinary

Sale

1,348

8.9971 GBP

50p ordinary

Sale

1,203

8.8782 GBP

50p ordinary

Sale

1,128

9.0900 GBP

50p ordinary

Sale

794

9.1600 GBP

50p ordinary

Sale

754

9.0759 GBP

50p ordinary

Sale

744

9.0449 GBP

50p ordinary

Sale

735

9.1122 GBP

50p ordinary

Sale

721

9.0527 GBP

50p ordinary

Sale

693

9.1900 GBP

50p ordinary

Sale

653

9.2854 GBP

50p ordinary

Sale

511

8.8283 GBP

50p ordinary

Sale

492

8.7037 GBP

50p ordinary

Sale

446

8.9450 GBP

50p ordinary

Sale

445

9.1204 GBP

50p ordinary

Sale

431

9.0512 GBP

50p ordinary

Sale

341

8.8640 GBP

50p ordinary

Sale

330

8.9384 GBP

50p ordinary

Sale

303

9.1615 GBP

50p ordinary

Sale

227

8.9100 GBP

50p ordinary

Sale

210

8.8700 GBP

50p ordinary

Sale

204

8.6800 GBP

50p ordinary

Sale

185

8.8500 GBP

50p ordinary

Sale

165

9.1100 GBP

50p ordinary

Sale

164

8.9300 GBP

50p ordinary

Sale

163

9.2100 GBP

50p ordinary

Sale

162

9.0750 GBP

50p ordinary

Sale

161

8.8400 GBP

50p ordinary

Sale

157

8.7700 GBP

50p ordinary

Sale

154

9.1400 GBP

50p ordinary

Sale

145

9.1700 GBP

50p ordinary

Sale

127

9.4200 GBP

50p ordinary

Sale

121

9.1306 GBP

50p ordinary

Sale

102

8.8702 GBP

50p ordinary

Sale

94

8.8000 GBP

50p ordinary

Sale

86

8.6600 GBP

50p ordinary

Sale

80

9.2900 GBP

50p ordinary

Sale

79

8.6700 GBP

50p ordinary

Sale

78

9.1000 GBP

50p ordinary

Sale

69

9.2500 GBP

50p ordinary

Sale

66

8.6500 GBP

50p ordinary

Sale

65

9.1200 GBP

50p ordinary

Sale

59

8.7800 GBP

50p ordinary

Sale

59

9.3000 GBP

50p ordinary

Sale

59

9.3500 GBP

50p ordinary

Sale

53

8.9050 GBP

50p ordinary

Sale

50

9.1800 GBP

50p ordinary

Sale

47

9.2400 GBP

50p ordinary

Sale

41

9.0700 GBP

50p ordinary

Sale

28

9.3100 GBP

50p ordinary

Sale

26

8.8300 GBP

50p ordinary

Sale

26

9.3400 GBP

50p ordinary

Sale

23

9.0000 GBP

50p ordinary

Sale

22

9.4000 GBP

50p ordinary

Sale

17

9.0300 GBP

50p ordinary

Sale

10

9.2300 GBP

50p ordinary

Sale

10

9.2000 GBP

50p ordinary

Sale

10

8.7900 GBP

50p ordinary

Sale

10

8.8600 GBP

50p ordinary

Sale

10

9.4100 GBP

(b)

Cash-settled derivative transactions

Class of

Product

Nature of dealing

Number of

Price per

relevant

description

reference

unit

security

securities

50p ordinary

SWAP

Increasing Long

1,879

8.8524 GBP

50p ordinary

SWAP

Increasing Long

1,109

8.8528 GBP

50p ordinary

SWAP

Increasing Long

8,076

8.9392 GBP

50p ordinary

SWAP

Increasing Long

4,597

9.0145 GBP

50p ordinary

SWAP

Increasing Long

7,892

9.1115 GBP

50p ordinary

SWAP

Increasing Long

13,369

9.1300 GBP

50p ordinary

SWAP

Decreasing Long

277

8.7700 GBP

50p ordinary

SWAP

Decreasing Long

982

8.7713 GBP

50p ordinary

SWAP

Decreasing Long

10,518

8.7931 GBP

50p ordinary

SWAP

Decreasing Long

29

8.8200 GBP

50p ordinary

SWAP

Decreasing Long

96,652

8.8224 GBP

50p ordinary

SWAP

Decreasing Long

8,162

8.8688 GBP

50p ordinary

SWAP

Decreasing Long

1,315

8.8833 GBP

50p ordinary

SWAP

Decreasing Long

40,000

8.9355 GBP

50p ordinary

SWAP

Decreasing Long

1,297

8.9422 GBP

50p ordinary

SWAP

Decreasing Long

969

8.9963 GBP

50p ordinary

SWAP

Decreasing Long

96

9.0413 GBP

50p ordinary

SWAP

Decreasing Long

13,912

9.0569 GBP

50p ordinary

SWAP

Decreasing Long

56

9.0858 GBP

50p ordinary

SWAP

Decreasing Long

40,000

9.1285 GBP

50p ordinary

SWAP

Decreasing Long

17,827

9.1300 GBP

50p ordinary

SWAP

Decreasing Long

328

9.1304 GBP

50p ordinary

SWAP

Decreasing Long

3,389

9.2080 GBP

50p ordinary

CFD

Increasing Long

2,054

9.0218 GBP

50p ordinary

CFD

Increasing Long

2,423

9.0362 GBP

50p ordinary

CFD

Decreasing Long

1,029

9.0197 GBP

50p ordinary

CFD

Opening Short

24,882

9.1300 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:

16 Jan 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213