Michael A. DesJardin - 01 Jan 2023 Form 4 Insider Report for Horizon Therapeutics Public Ltd Co

Role: EVP, Technical Operations
Signature: /s/ Patrick McIlvenny, Attorney-in-Fact
Issuer symbol: N/A
Transactions as of: 01 Jan 2023
Net transactions value: -$1,088,042
Form type: 4
Filing time: 04 Jan 2023, 15:25:18 UTC
Previous filing: 29 Dec 2022
Next filing: 06 Jan 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	HZNP	Ordinary Shares	Options Exercise		+21,772	+26%		104,395	01 Jan 2023	Direct	F1
transaction	HZNP	Ordinary Shares	Tax liability	$1,088,042	-9,561	-9.2%	$113.80	94,834	01 Jan 2023	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	HZNP	Performance Restricted Stock Units (PSUs)	Options Exercise	$0	-21,772	-100%	$0.000000^*	0	01 Jan 2023	Ordinary Shares	21,772		Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each PSU represents a contingent right to receive one ordinary share of the Issuer.
F2	The ordinary shares subject to the PSUs vested on January 1, 2023.