One Wealth Advisors’s Biogen BIIB Stock Holding History

One Wealth 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
2026 Q2	$345K	Sell	1,599 -56	-3%	-$10.7K	0.04%	240
2026 Q1	$303K	Buy	1,655 +51	+3%	+$9.4K	0.04%	243
2025 Q4	$282K	Buy	+1,604	New	+$262K	0.03%	247
2023 Q4	–	Sell	-809	Closed	-$208K	–	211
2023 Q3	$208K	Hold	809	–	–	0.05%	179
2023 Q2	$230K	Sell	809 -43	-5%	-$12.8K	0.05%	183
2023 Q1	$237K	Hold	852	–	–	0.05%	172
2022 Q4	$236K	Buy	+852	New	+$241K	0.05%	168
2021 Q4	–	Sell	-811	Closed	-$230K	–	201
2021 Q3	$230K	Sell	811 -263	-24%	-$86.2K	0.07%	184
2021 Q2	$372K	Sell	1,074 -187	-15%	-$56.6K	0.12%	98
2021 Q1	$353K	Buy	1,261 +79	+7%	+$21.3K	0.14%	90
2020 Q4	$289K	Sell	1,182 -93	-7%	-$24K	0.16%	89
2020 Q3	$362K	Buy	1,275 +283	+29%	+$78.9K	0.25%	45
2020 Q2	$265K	Buy	992 +291	+42%	+$87.5K	0.21%	59
2020 Q1	$222K	Buy	+701	New	+$213K	0.22%	72
2019 Q2	–	Sell	-6	Closed	-$1K	–	161
2019 Q1	$1K	Buy	+6	New	+$1.89K	﹤0.01%	520

Other funds holding BIIB

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

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

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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

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

Norges Bank Oslo, Norway $1T AUM

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

One Wealth Advisors's BIIB Position: Q2 2026 in Review

One Wealth Advisors reduced its Biogen (BIIB) stake by 3.4% in Q2 2026, selling an estimated $10.7K and leaving 1,599 shares worth $345K. The position accounts for 0.04% of the portfolio, ranked #240.

One Wealth Advisors first reported a position in BIIB in Q1 2019 and has held it in 15 quarters since. The position peaked at $372K in Q2 2021. 1,038 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

One Wealth Advisors held 1,599 shares of Biogen worth $345K as of Q2 2026.
One Wealth Advisors sold 56 Biogen shares in Q2 2026, an estimated $10.7K.
Biogen made up 0.04% of One Wealth Advisors's portfolio in Q2 2026, its #240 holding.
One Wealth Advisors first reported a position in Biogen in Q1 2019 and has held it in 15 quarters since.
One Wealth Advisors's Biogen position peaked at $372K in Q2 2021.
1,038 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on One Wealth Advisors's 13F filing for Q2 2026, filed 6 Aug 2026.