Form 8.3 ENQUEST 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

ENQUEST 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:

28 Mar 2025

(f)

In addition to the company in 1(c) above, is the discloser making

YES:

disclosures in respect of any other party to the offer?

SERICA ENERGY PLC

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:

5p ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1)

Relevant securities owned

and/or controlled:

432,946

0.02%

3,286,109

0.18%

(2)

Cash-settled derivatives:

and/or controlled:

2,206,919

0.12%

368,012

0.02%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

2,639,865

0.14%

3,654,121

0.20%

(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 EXEMPT PRINCIPAL TRADER

(a)

Purchases and sales

Class of relevant

Purchase/sale

Number of

Price per unit

security

securities

5p ordinary

Purchase

523,609

0.1616 GBP

5p ordinary

Purchase

244,227

0.1596 GBP

5p ordinary

Purchase

193,458

0.1648 GBP

5p ordinary

Purchase

114,991

0.1602 GBP

5p ordinary

Purchase

60,356

0.1605 GBP

5p ordinary

Purchase

50,000

0.1630 GBP

5p ordinary

Purchase

26,899

0.1650 GBP

5p ordinary

Purchase

21,423

0.1609 GBP

5p ordinary

Purchase

20,506

0.1604 GBP

5p ordinary

Purchase

14,296

0.1549 GBP

5p ordinary

Purchase

6,546

0.1573 GBP

5p ordinary

Purchase

5,423

0.1595 GBP

5p ordinary

Purchase

2,220

0.1550 GBP

5p ordinary

Purchase

1,400

0.1644 GBP

5p ordinary

Purchase

192

0.1530 GBP

5p ordinary

Sale

586,816

0.1650 GBP

5p ordinary

Sale

472,748

0.1616 GBP

5p ordinary

Sale

235,732

0.1592 GBP

5p ordinary

Sale

166,756

0.1598 GBP

5p ordinary

Sale

92,184

0.1600 GBP

5p ordinary

Sale

86,956

0.1584 GBP

5p ordinary

Sale

56,780

0.1609 GBP

5p ordinary

Sale

54,450

0.1645 GBP

5p ordinary

Sale

53,535

0.1649 GBP

5p ordinary

Sale

30,203

0.1591 GBP

5p ordinary

Sale

13,511

0.1610 GBP

5p ordinary

Sale

9,724

0.1640 GBP

5p ordinary

Sale

7,252

0.1618 GBP

5p ordinary

Sale

6,727

0.1594 GBP

5p ordinary

Sale

1,341

0.1604 GBP

5p ordinary

Sale

932

0.1626 GBP

5p ordinary

Sale

489

0.1608 GBP

(b)

Cash-settled derivative transactions

Class of

Product

Nature of dealing

Number of

Price per

relevant

description

reference

unit

security

securities

5p ordinary

SWAP

Increasing Long

86,956

0.1584 GBP

5p ordinary

SWAP

Increasing Long

108,181

0.1595 GBP

5p ordinary

SWAP

Increasing Long

58,575

0.1605 GBP

5p ordinary

SWAP

Increasing Long

53,535

0.1649 GBP

5p ordinary

SWAP

Decreasing Long

11,155

0.1549 GBP

5p ordinary

SWAP

Decreasing Long

5,361

0.1550 GBP

5p ordinary

SWAP

Decreasing Long

114,991

0.1602 GBP

5p ordinary

CFD

Opening Long

456,804

0.1649 GBP

5p ordinary

CFD

Decreasing Long

6,958

0.1614 GBP

5p ordinary

CFD

Decreasing Long

372

0.1616 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)

Exercising

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:

31 Mar 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213