Empirical Wealth Management’s Biogen BIIB Stock Holding History

Empirical Wealth Management’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
2026 Q2	$778K	Buy	3,601 +850	+31%	+$163K	0.01%	482
2026 Q1	$504K	Buy	2,751 +533	+24%	+$98.2K	0.01%	568
2025 Q4	$390K	Buy	2,218 +753	+51%	+$123K	0.01%	604
2025 Q3	$205K	Buy	+1,465	New	+$198K	﹤0.01%	753
2024 Q3	–	Sell	-1,422	Closed	-$330K	–	575
2024 Q2	$330K	Buy	+1,422	New	+$309K	0.01%	437
2024 Q1	–	Sell	-5,234	Closed	-$1.35M	–	535
2023 Q4	$1.35M	Buy	+5,234	New	+$1.29M	0.05%	211
2023 Q3	–	Sell	-2,306	Closed	-$657K	–	470
2023 Q2	$657K	Buy	+2,306	New	+$686K	0.03%	267
2022 Q1	–	Sell	-950	Closed	-$228K	–	502
2021 Q4	$228K	Buy	950 +92	+11%	+$23.7K	0.01%	471
2021 Q3	$243K	Sell	858 -231	-21%	-$75.7K	0.01%	404
2021 Q2	$377K	Buy	1,089 +348	+47%	+$105K	0.02%	339
2021 Q1	$207K	Sell	741 -1,616	-69%	-$436K	0.02%	369
2020 Q4	$577K	Buy	2,357 +162	+7%	+$41.8K	0.04%	228
2020 Q3	$623K	Buy	2,195 +299	+16%	+$83.4K	0.05%	181
2020 Q2	$507K	Buy	1,896 +382	+25%	+$115K	0.05%	208
2020 Q1	$479K	Buy	+1,514	New	+$459K	0.05%	192

Other funds holding BIIB

Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return

Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return

AIM

Artemis Investment Management Edinburgh, United Kingdom $11.2B AUM 80.72% 1-Year Est. Return

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return

Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return

AAMU

AEGON Asset Management (UK) Edinburgh, United Kingdom $9.38B AUM 48.94% 1-Year Est. Return

New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return

ECSS

Eurizon Capital SGR SpA Milan $37.3B AUM

ADEF

Adams Diversified Equity Fund Baltimore, Maryland $3.27B AUM 45.57% 1-Year Est. Return

New York State Common Retirement Fund Albany, New York $79.3B AUM 43.63% 1-Year Est. Return

Empirical Wealth Management's BIIB Position: Q2 2026 in Review

Empirical Wealth Management increased its Biogen (BIIB) stake by 31% in Q2 2026, buying an estimated $163K and bringing the position to 3,601 shares worth $778K. The position accounts for 0.01% of the portfolio, ranked #482.

Empirical Wealth Management first reported a position in BIIB in Q1 2020 and has held it in 15 quarters since. The position peaked at $1.35M in Q4 2023. 371 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

Empirical Wealth Management held 3,601 shares of Biogen worth $778K as of Q2 2026.
Empirical Wealth Management bought 850 Biogen shares in Q2 2026, an estimated $163K.
Biogen made up 0.01% of Empirical Wealth Management's portfolio in Q2 2026, its #482 holding.
Empirical Wealth Management first reported a position in Biogen in Q1 2020 and has held it in 15 quarters since.
Empirical Wealth Management's Biogen position peaked at $1.35M in Q4 2023.
371 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Empirical Wealth Management's 13F filing for Q2 2026, filed 15 Jul 2026.