Cohen Klingenstein’s Biogen BIIB Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2025 Q2	$502K	Hold	4,000	–	–	0.02%	182
2025 Q1	$547K	Hold	4,000	–	–	0.02%	180
2024 Q4	$612K	Hold	4,000	–	–	0.02%	178
2024 Q3	$775K	Hold	4,000	–	–	0.03%	180
2024 Q2	$927K	Hold	4,000	–	–	0.03%	168
2024 Q1	$863K	Hold	4,000	–	–	0.03%	176
2023 Q4	$1.04M	Hold	4,000	–	–	0.04%	167
2023 Q3	$1.03M	Hold	4,000	–	–	0.05%	160
2023 Q2	$1.14M	Hold	4,000	–	–	0.05%	157
2023 Q1	$1.11M	Hold	4,000	–	–	0.05%	156
2022 Q4	$1.11M	Hold	4,000	–	–	0.06%	158
2022 Q3	$1.07M	Hold	4,000	–	–	0.06%	152
2022 Q2	$816K	Hold	4,000	–	–	0.04%	169
2022 Q1	$842K	Hold	4,000	–	–	0.04%	174
2021 Q4	$960K	Hold	4,000	–	–	0.04%	174
2021 Q3	$1.13M	Hold	4,000	–	–	0.05%	168
2021 Q2	$1.39M	Hold	4,000	–	–	0.06%	154
2021 Q1	$1.12M	Hold	4,000	–	–	0.05%	173
2020 Q4	$979K	Hold	4,000	–	–	0.05%	172
2020 Q3	$1.14M	Hold	4,000	–	–	0.06%	152
2020 Q2	$1.07M	Hold	4,000	–	–	0.07%	154
2020 Q1	$1.27M	Hold	4,000	–	–	0.09%	129
2019 Q4	$1.19M	Hold	4,000	–	–	0.07%	149
2019 Q3	$931K	Buy	+4,000	New	+$931K	0.06%	169