Cornerstone Advisors’s Biogen BIIB Stock Holding History

Quarter	Market Value	Status	Shares	Shares Change %	Trade Value	Portfolio Weight	Portfolio Position
2025 Q2	$389K	Sell	3,100 -500	-14%	-$62.8K	0.01%	253
2025 Q1	$493K	Hold	3,600	–	–	0.02%	246
2024 Q4	$551K	Hold	3,600	–	–	0.02%	240
2024 Q3	$698K	Hold	3,600	–	–	0.03%	245
2024 Q2	$835K	Sell	3,600 -2,900	-45%	-$672K	0.03%	255
2024 Q1	$1.4M	Hold	6,500	–	–	0.06%	240
2023 Q4	$1.68M	Sell	6,500 -4,500	-41%	-$1.16M	0.07%	226
2023 Q3	$2.83M	Sell	11,000 -7,000	-39%	-$1.8M	0.13%	166
2023 Q2	$5.13M	Hold	18,000	–	–	0.24%	109
2023 Q1	$5M	Hold	18,000	–	–	0.23%	97
2022 Q4	$4.98M	Buy	18,000 +2,000	+13%	+$554K	0.25%	102
2022 Q3	$4.27M	Hold	16,000	–	–	0.21%	110
2022 Q2	$3.26M	Hold	16,000	–	–	0.17%	129
2022 Q1	$3.37M	Hold	16,000	–	–	0.2%	116
2021 Q4	$3.84M	Hold	16,000	–	–	0.21%	114
2021 Q3	$4.53M	Hold	16,000	–	–	0.26%	99
2021 Q2	$5.54M	Buy	16,000 +7,000	+78%	+$2.42M	0.33%	85
2021 Q1	$2.52M	Buy	+9,000	New	+$2.52M	0.22%	109
2020 Q4	–	Sell	-11,965	Closed	-$3.39M	–	171
2020 Q3	$3.39M	Buy	11,965 +3,965	+50%	+$1.12M	0.3%	81
2020 Q2	$2.14M	Buy	+8,000	New	+$2.14M	0.2%	116
2019 Q1	–	Sell	-8,000	Closed	-$2.41M	–	199
2018 Q4	$2.41M	Sell	8,000 -6,000	-43%	-$1.81M	0.21%	123
2018 Q3	$4.95M	Buy	+14,000	New	+$4.95M	0.36%	80
2016 Q3	–	Sell	-1,500	Closed	-$363K	–	212
2016 Q2	$363K	Hold	1,500	–	–	0.09%	175
2016 Q1	$390K	Sell	1,500 -1,500	-50%	-$390K	0.09%	170
2015 Q4	$919K	Hold	3,000	–	–	0.21%	126
2015 Q3	$875K	Buy	+3,000	New	+$875K	0.21%	128
2015 Q2	–	Sell	-2,000	Closed	-$844K	–	215
2015 Q1	$844K	Hold	2,000	–	–	0.17%	144
2014 Q4	$679K	Buy	+2,000	New	+$679K	0.14%	181
2013 Q3	–	Sell	-6,000	Closed	-$1.29M	–	232
2013 Q2	$1.29M	Buy	+6,000	New	+$1.29M	0.51%	65