Rock Springs Capital Management’s Seagen Inc. Common Stock SGEN Stock Holding History

Quarter	Market Value	Status	Shares	Shares Change %	Trade Value	Portfolio Weight	Portfolio Position
2023 Q4	–	Sell	-400,200	Closed	-$84.9M	–	121
2023 Q3	$84.9M	Hold	400,200	–	–	2.27%	13
2023 Q2	$77M	Hold	400,200	–	–	1.83%	17
2023 Q1	$81M	Hold	400,200	–	–	1.93%	16
2022 Q4	$51.4M	Buy	400,200 +128,200	+47%	+$16.5M	1.24%	29
2022 Q3	$37.2M	Hold	272,000	–	–	0.96%	39
2022 Q2	$48.1M	Buy	272,000 +1,500	+0.6%	+$265K	1.4%	25
2022 Q1	$39M	Buy	270,500 +14,500	+6%	+$2.09M	0.98%	35
2021 Q4	$39.6M	Buy	256,000 +6,000	+2%	+$928K	0.91%	37
2021 Q3	$42.5M	Hold	250,000	–	–	0.89%	40
2021 Q2	$39.5M	Hold	250,000	–	–	0.78%	43
2021 Q1	$34.7M	Hold	250,000	–	–	0.76%	45
2020 Q4	$43.8M	Hold	250,000	–	–	0.93%	36
2020 Q3	$48.9M	Hold	250,000	–	–	1.24%	27
2020 Q2	$42.5M	Buy	250,000 +8,000	+3%	+$1.36M	1.17%	28
2020 Q1	$27.9M	Hold	242,000	–	–	1.15%	33
2019 Q4	$27.7M	Hold	242,000	–	–	0.87%	47
2019 Q3	$20.7M	Hold	242,000	–	–	0.82%	45
2019 Q2	$16.7M	Hold	242,000	–	–	0.61%	60
2019 Q1	$17.7M	Buy	242,000 +39,500	+20%	+$2.89M	0.68%	51
2018 Q4	$11.5M	Buy	+202,500	New	+$11.5M	0.54%	60
2018 Q1	–	Sell	-125,000	Closed	-$6.69M	–	159
2017 Q4	$6.69M	Hold	125,000	–	–	0.3%	91
2017 Q3	$6.8M	Buy	125,000 +25,000	+25%	+$1.36M	0.31%	92
2017 Q2	$5.17M	Buy	+100,000	New	+$5.17M	0.26%	95