William Blair Investment Management’s Horizon Therapeutics Public Limited Company Ordinary Shares HZNP Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2023 Q1	–	Sell	-162,062	Closed	-$18.4M	–	424
2022 Q4	$18.4M	Sell	162,062 -1,863,759	-92%	-$155M	0.07%	268
2022 Q3	$125M	Buy	2,025,821 +384,278	+23%	+$26.9M	0.5%	72
2022 Q2	$131M	Sell	1,641,543 -212,320	-11%	-$20.1M	0.49%	74
2022 Q1	$195M	Sell	1,853,863 -477,823	-20%	-$46.6M	0.58%	57
2021 Q4	$251M	Sell	2,331,686 -785,682	-25%	-$85.7M	0.68%	45
2021 Q3	$341M	Sell	3,117,368 -1,276,319	-29%	-$132M	0.96%	16
2021 Q2	$411M	Buy	4,393,687 +244,492	+6%	+$22.5M	1.29%	7
2021 Q1	$382M	Sell	4,149,195 -1,104,803	-21%	-$93.2M	1.24%	10
2020 Q4	$384M	Sell	5,253,998 -599,224	-10%	-$44.5M	1.28%	8
2020 Q3	$455M	Sell	5,853,222 -1,766,356	-23%	-$122M	1.77%	3
2020 Q2	$423M	Sell	7,619,578 -700,367	-8%	-$30M	1.72%	6
2020 Q1	$246M	Sell	8,319,945 -535,545	-6%	-$18.1M	1.2%	12
2019 Q4	$321M	Buy	8,855,490 +515,049	+6%	+$15.8M	1.28%	10
2019 Q3	$227M	Buy	8,340,441 +1,382,138	+20%	+$35.7M	0.97%	22
2019 Q2	$167M	Buy	6,958,303 +15,946	+0.2%	+$404K	0.7%	45
2019 Q1	$183M	Buy	6,942,357 +269,565	+4%	+$6.39M	0.77%	39
2018 Q4	$130M	Sell	6,672,792 -3,928,355	-37%	-$77M	0.65%	48
2018 Q3	$208M	Buy	10,601,147 +663,821	+7%	+$12.6M	0.72%	37
2018 Q2	$165M	Buy	9,937,326 +628,051	+7%	+$9.58M	0.61%	48
2018 Q1	$132M	Buy	9,309,275 +483,196	+5%	+$7.14M	0.5%	64
2017 Q4	$129M	Buy	8,826,079 +958,414	+12%	+$13.5M	0.5%	65
2017 Q3	$99.8M	Buy	7,867,665 +5,883,053	+296%	+$74.8M	0.36%	94
2017 Q2	$23.6M	Buy	+1,984,612	New	+$24.7M	0.09%	209