Baader Bank Aktiengesellschaft’s Biogen BIIB Stock Holding History

Baader Bank Aktiengesellschaft’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	$6.17M	Sell	28,568 -2,233	-7%	-$427K	0.46%	52
2026 Q1	$5.64M	Sell	30,801 -1,690	-5%	-$311K	0.44%	53
2025 Q4	$5.71M	Sell	32,491 -23,483	-42%	-$3.84M	0.39%	55
2025 Q3	$7.83M	Buy	+55,974	New	+$7.57M	0.51%	41

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

Baader Bank Aktiengesellschaft's BIIB Position: Q2 2026 in Review

Baader Bank Aktiengesellschaft reduced its Biogen (BIIB) stake by 7.2% in Q2 2026, selling an estimated $427K and leaving 28,568 shares worth $6.17M. The position accounts for 0.46% of the portfolio, ranked #52.

Baader Bank Aktiengesellschaft first reported a position in BIIB in Q3 2025 and has held it in 4 quarters since. The position peaked at $7.83M in Q3 2025. 1,042 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

Baader Bank Aktiengesellschaft held 28,568 shares of Biogen worth $6.17M as of Q2 2026.
Baader Bank Aktiengesellschaft sold 2,233 Biogen shares in Q2 2026, an estimated $427K.
Biogen made up 0.46% of Baader Bank Aktiengesellschaft's portfolio in Q2 2026, its #52 holding.
Baader Bank Aktiengesellschaft first reported a position in Biogen in Q3 2025 and has held it in 4 quarters since.
Baader Bank Aktiengesellschaft's Biogen position peaked at $7.83M in Q3 2025.
1,042 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Baader Bank Aktiengesellschaft's 13F filing for Q2 2026, filed 23 Jul 2026.