E Fund Management’s Biogen BIIB Stock Holding History

E Fund 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	$902K	Sell	4,174 -1,035	-20%	-$198K	0.02%	202
2026 Q1	$955K	Buy	+5,209	New	+$960K	0.03%	196
2025 Q2	$1.73M	Buy	13,810 +423	+3%	+$52.7K	0.08%	122
2025 Q1	$1.83M	Buy	13,387 +3,160	+31%	+$452K	0.09%	119
2024 Q4	$1.56M	Buy	10,227 +2,166	+27%	+$365K	0.08%	126
2024 Q3	$1.56M	Buy	8,061 +994	+14%	+$208K	0.08%	101
2024 Q2	$1.64M	Buy	7,067 +2,884	+69%	+$627K	0.09%	94
2024 Q1	$902K	Buy	4,183 +128	+3%	+$30K	0.06%	120
2023 Q4	$1.05M	Buy	4,055 +353	+10%	+$86.7K	0.07%	89
2023 Q3	$951K	Buy	3,702 +630	+21%	+$169K	0.07%	84
2023 Q2	$875K	Sell	3,072 -365	-11%	-$109K	0.07%	84
2023 Q1	$956K	Sell	3,437 -74	-2%	-$20.5K	0.07%	86
2022 Q4	$972K	Sell	3,511 -1,128	-24%	-$319K	0.08%	91
2022 Q3	$1.24M	Buy	4,639 +235	+5%	+$49.9K	0.12%	78
2022 Q2	$898K	Buy	4,404 +833	+23%	+$170K	0.08%	96
2022 Q1	$752K	Buy	3,571 +590	+20%	+$128K	0.02%	99
2021 Q4	$715K	Buy	2,981 +225	+8%	+$57.9K	0.03%	127
2021 Q3	$780K	Buy	+2,756	New	+$903K	0.03%	104
2021 Q1	$745K	Buy	+2,662	New	+$718K	0.06%	107

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

E Fund Management's BIIB Position: Q2 2026 in Review

E Fund Management reduced its Biogen (BIIB) stake by 20% in Q2 2026, selling an estimated $198K and leaving 4,174 shares worth $902K. The position accounts for 0.02% of the portfolio, ranked #202.

E Fund Management first reported a position in BIIB in Q1 2021 and has held it in 19 quarters since. The position peaked at $1.83M in Q1 2025. 1,038 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

E Fund Management held 4,174 shares of Biogen worth $902K as of Q2 2026.
E Fund Management sold 1,035 Biogen shares in Q2 2026, an estimated $198K.
Biogen made up 0.02% of E Fund Management's portfolio in Q2 2026, its #202 holding.
E Fund Management first reported a position in Biogen in Q1 2021 and has held it in 19 quarters since.
E Fund Management's Biogen position peaked at $1.83M in Q1 2025.
1,038 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on E Fund Management's 13F filing for Q2 2026, filed 11 Aug 2026.