Bellwether Advisors’s Biogen BIIB Stock Holding History

Bellwether Advisors’s Portfolio BIIB Stock Details BIIB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-26	Closed	-$3.27K	–	181
2025 Q2	$3.27K	Sell	26 -2	-7%	-$249	﹤0.01%	459
2025 Q1	$3.83K	Hold	28	–	–	﹤0.01%	392
2024 Q4	$4.28K	Buy	+28	New	+$4.72K	﹤0.01%	391
2023 Q2	–	Sell	-27	Closed	-$7.51K	–	127
2023 Q1	$7.51K	Hold	27	–	–	﹤0.01%	289
2022 Q4	$7.48K	Hold	27	–	–	﹤0.01%	286
2022 Q3	$7K	Hold	27	–	–	﹤0.01%	291
2022 Q2	$5K	Hold	27	–	–	﹤0.01%	274
2022 Q1	$5K	Sell	27 -105	-80%	-$22.8K	﹤0.01%	353
2021 Q4	$31K	Sell	132 -105	-44%	-$27K	0.01%	239
2021 Q3	$67K	Hold	237	–	–	0.02%	191
2021 Q2	$82K	Hold	237	–	–	0.03%	158
2021 Q1	$66K	Hold	237	–	–	0.03%	155
2020 Q4	$58K	Buy	+237	New	+$61.1K	0.03%	156

Other funds holding BIIB

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Bellwether Advisors's BIIB Position: Q3 2025 in Review

Bellwether Advisors sold out of Biogen (BIIB) in Q3 2025, closing a stake of 26 shares — an estimated $3.27K sold.

Bellwether Advisors first reported a position in BIIB in Q4 2020 and held it in 13 quarters. The position peaked at $82K in Q2 2021. 908 funds tracked by Wall St. Rank hold BIIB as of Q3 2025.

Bellwether Advisors reported no remaining Biogen position as of Q3 2025 after selling out during the quarter.
Bellwether Advisors sold 26 Biogen shares in Q3 2025, an estimated $3.27K.
Bellwether Advisors first reported a position in Biogen in Q4 2020 and held it in 13 quarters.
Bellwether Advisors's Biogen position peaked at $82K in Q2 2021.
908 funds tracked by Wall St. Rank held Biogen as of Q3 2025.

Based on Bellwether Advisors's 13F filing for Q3 2025, filed 12 Nov 2025.