Barclays Regulatory News (BARC)

FORM 8.3

IRISH TAKEOVER PANEL

DISCLOSURE UNDER RULE 8.3 OF THE IRISH TAKEOVER PANEL ACT, 1997,

TAKEOVER RULES, 2007 (AS AMENDED)

DEALINGS BY PERSONS WITH INTERESTS IN RELEVANT SECURITIES

REPRESENTING 1% OR MORE

1.

KEY INFORMATION

Name of person dealing (Note 1)

Barclays PLC.

Company dealt in

HORIZON THERAPEUTICS PLC

Class of relevant security to which the dealings being disclosed relate (Note 2)

$0.0001 ordinary shares

Date of dealing

11 May 2023

2.

INTERESTS AND SHORT POSITIONS

(a)

Interests and short positions (following dealing) in the class of relevant security dealt in (Note 3)

Class of relevant security:

$0.0001 ordinary shares

Long

Short

Number

(%)

Number

(%)

(1)

Relevant securities 

1,307,445

0.57%

517,999

0.23%

(2)

Derivatives (other than options):

53,580

0.02%

0

0.00%

(3)

Options and agreements to purchase/sell:

1,532,700

0.67%

1,379,500

0.60%

TOTAL:

2,893,725

1.27%

1,897,499

0.83%

(b)

Interests and short positions in relevant securities of the company, other than the class dealt in

Class of relevant security:

Long

Short

Number

(%)

Number

(%)

(1)

Relevant securities

(2)

Derivatives (other than options):

(3)

Options and agreements to purchase/sell:

TOTAL:

3.

DEALINGS (Note 4)

(a)

Purchase and sales

Class of relevant Security

Purchase/sale

Number of securities

Price per unit

$0.0001 ordinary shares

Purchase

36

109.9200 USD

$0.0001 ordinary shares

Purchase

88

110.0592 USD

$0.0001 ordinary shares

Purchase

100

110.0600 USD

$0.0001 ordinary shares

Purchase

100

109.9070 USD

$0.0001 ordinary shares

Purchase

100

109.9850 USD

$0.0001 ordinary shares

Purchase

101

109.9846 USD

$0.0001 ordinary shares

Purchase

123

110.5000 USD

$0.0001 ordinary shares

Purchase

157

110.0300 USD

$0.0001 ordinary shares

Purchase

187

109.9628 USD

$0.0001 ordinary shares

Purchase

300

110.0007 USD

$0.0001 ordinary shares

Purchase

331

109.9258 USD

$0.0001 ordinary shares

Purchase

401

110.0040 USD

$0.0001 ordinary shares

Purchase

488

109.9479 USD

$0.0001 ordinary shares

Purchase

601

109.9354 USD

$0.0001 ordinary shares

Purchase

615

109.9524 USD

$0.0001 ordinary shares

Purchase

797

109.9399 USD

$0.0001 ordinary shares

Purchase

1,850

109.9312 USD

$0.0001 ordinary shares

Purchase

2,152

109.9481 USD

$0.0001 ordinary shares

Purchase

3,455

109.9794 USD

$0.0001 ordinary shares

Purchase

6,378

110.0216 USD

$0.0001 ordinary shares

Purchase

8,268

110.1332 USD

$0.0001 ordinary shares

Purchase

8,946

110.0150 USD

$0.0001 ordinary shares

Purchase

10,625

109.9300 USD

$0.0001 ordinary shares

Purchase

11,396

110.0048 USD

$0.0001 ordinary shares

Purchase

12,369

110.0477 USD

$0.0001 ordinary shares

Purchase

23,107

110.0230 USD

$0.0001 ordinary shares

Sale

3

109.9166 USD

$0.0001 ordinary shares

Sale

4

109.9225 USD

$0.0001 ordinary shares

Sale

5

110.0250 USD

$0.0001 ordinary shares

Sale

5

109.9540 USD

$0.0001 ordinary shares

Sale

6

110.0416 USD

$0.0001 ordinary shares

Sale

8

109.9975 USD

$0.0001 ordinary shares

Sale

8

110.0087 USD

$0.0001 ordinary shares

Sale

9

109.9966 USD

$0.0001 ordinary shares

Sale

10

109.9500 USD

$0.0001 ordinary shares

Sale

17

110.0058 USD

$0.0001 ordinary shares

Sale

32

109.9725 USD

$0.0001 ordinary shares

Sale

61

110.2854 USD

$0.0001 ordinary shares

Sale

68

109.9900 USD

$0.0001 ordinary shares

Sale

84

109.8703 USD

$0.0001 ordinary shares

Sale

93

110.0400 USD

$0.0001 ordinary shares

Sale

100

110.4100 USD

$0.0001 ordinary shares

Sale

100

109.9000 USD

$0.0001 ordinary shares

Sale

100

109.8800 USD

$0.0001 ordinary shares

Sale

132

109.9200 USD

$0.0001 ordinary shares

Sale

134

110.4614 USD

$0.0001 ordinary shares

Sale

157

110.0300 USD

$0.0001 ordinary shares

Sale

192

110.0095 USD

$0.0001 ordinary shares

Sale

200

110.1550 USD

$0.0001 ordinary shares

Sale

220

109.9018 USD

$0.0001 ordinary shares

Sale

262

110.0552 USD

$0.0001 ordinary shares

Sale

268

109.9589 USD

$0.0001 ordinary shares

Sale

403

110.4262 USD

$0.0001 ordinary shares

Sale

424

110.0349 USD

$0.0001 ordinary shares

Sale

462

109.9951 USD

$0.0001 ordinary shares

Sale

500

110.2440 USD

$0.0001 ordinary shares

Sale

500

110.2150 USD

$0.0001 ordinary shares

Sale

559

110.1839 USD

$0.0001 ordinary shares

Sale

591

109.9795 USD

$0.0001 ordinary shares

Sale

617

110.3991 USD

$0.0001 ordinary shares

Sale

698

110.0887 USD

$0.0001 ordinary shares

Sale

809

110.2895 USD

$0.0001 ordinary shares

Sale

1,612

110.0470 USD

$0.0001 ordinary shares

Sale

2,162

109.9962 USD

$0.0001 ordinary shares

Sale

2,473

110.1292 USD

$0.0001 ordinary shares

Sale

5,251

110.1457 USD

$0.0001 ordinary shares

Sale

6,184

110.4000 USD

$0.0001 ordinary shares

Sale

6,666

110.0210 USD

$0.0001 ordinary shares

Sale

9,166

110.0119 USD

$0.0001 ordinary shares

Sale

11,279

109.9988 USD

$0.0001 ordinary shares

Sale

12,369

110.0477 USD

$0.0001 ordinary shares

Sale

13,654

109.9776 USD

$0.0001 ordinary shares

Sale

21,115

109.9421 USD

(b)

Derivatives transactions (other than option transactions)

Product Name

Nature of transaction

Number of relevant securities

Price per unit

(c)

Options transactions in respect of existing securities

(i)

Writing, selling, purchasing or varying

Class of relevant security

Product description

Writing, purchasing, selling, varying etc

Number of securities to which option relates

Exercise price per unit

Type

Expiry date

Option money paid/ received per unit

(ii)

Exercising

Product name

Number of securities

Exercise price per unit

(d)

Other dealings (including transactions in respect of new securities) (Note 4)

Nature of transaction

Details

Price per unit (if applicable)

4.

OTHER INFORMATION

Agreements, arrangements or understandings relating to options or derivatives

Full details of any agreement, arrangement or understanding between the person disclosing and any other person relating to the voting rights of any relevant securities under any option referred to on this form or relating to the voting rights or future acquisition or disposal of any relevant securities to which any derivative referred to on this form is referenced. If none, this should be stated.

NONE

Is a Supplemental Form 8 (Open Positions) attached?

YES

Date of disclosure:

12 May 2023

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213

If a connected EFM, name of offeree/offeror with which connected

If a connected EFM, state nature of connection

SUPPLEMENTAL FORM 8

IRISH TAKEOVER PANEL

DISCLOSURE UNDER RULE 8.1 AND RULE 8.3 OF THE IRISH TAKEOVER PANEL

ACT, 1997, TAKEOVER RULES, 2007 (AS AMENDED)

DETAILS OF OPEN POSITIONS

(This form should be attached to Form 8.1(a) & (b)(i), Form 8.1(b)(ii) or Form 8.3, as

appropriate)

OPEN POSITIONS

Class of relevant security

Product Description

Writing, purchasing, selling, varying etc

Number of securities to which option relates

Exercise price per unit

Type

Expiry date

$0.0001 ordinary shares

Put Options

Written

150,000

090

American

19 May 2023

$0.0001 ordinary shares

Put Options

Written

495,500

100

American

16 Jun 2023

$0.0001 ordinary shares

Put Options

Purchased

-65,000

095

American

19 May 2023

$0.0001 ordinary shares

Put Options

Purchased

-67,300

110

American

19 May 2023

$0.0001 ordinary shares

Put Options

Purchased

-25,000

085

American

19 May 2023

$0.0001 ordinary shares

Put Options

Purchased

-250,000

080

American

16 Jun 2023

$0.0001 ordinary shares

Put Options

Written

250,000

105

American

16 Jun 2023

$0.0001 ordinary shares

Put Options

Written

10,200

080

American

18 Aug 2023

$0.0001 ordinary shares

Put Options

Written

400,000

100

American

18 Aug 2023

$0.0001 ordinary shares

Put Options

Written

65,000

105

American

19 May 2023

$0.0001 ordinary shares

Put Options

Purchased

-800,000

080

American

18 Aug 2023

$0.0001 ordinary shares

Put Options

Written

162,000

105

American

21 Jul 2023

$0.0001 ordinary shares

Put Options

Purchased

-10,200

100

American

18 Aug 2023

$0.0001 ordinary shares

Put Options

Purchased

-162,000

090

American

21 Jul 2023