EFG International’s Biogen BIIB Stock Holding History

EFG International’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	$990K	Buy	4,582 +125	+3%	+$23.9K	0.02%	423
2026 Q1	$817K	Buy	4,457 +1,822	+69%	+$336K	0.02%	431
2025 Q4	$464K	Buy	+2,635	New	+$430K	0.01%	483

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

EFG International's BIIB Position: Q2 2026 in Review

EFG International increased its Biogen (BIIB) stake by 2.8% in Q2 2026, buying an estimated $23.9K and bringing the position to 4,582 shares worth $990K. The position accounts for 0.02% of the portfolio, ranked #423.

EFG International first reported a position in BIIB in Q4 2025 and has held it in 3 quarters since. 1,038 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

EFG International held 4,582 shares of Biogen worth $990K as of Q2 2026.
EFG International bought 125 Biogen shares in Q2 2026, an estimated $23.9K.
Biogen made up 0.02% of EFG International's portfolio in Q2 2026, its #423 holding.
EFG International first reported a position in Biogen in Q4 2025 and has held it in 3 quarters since.
1,038 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on EFG International's 13F filing for Q2 2026, filed 14 Aug 2026.