S-Bank Fund Management’s Biogen BIIB Stock Holding History

S-Bank 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	$387K	Buy	+1,792	New	+$343K	0.05%	175
2025 Q4	–	Sell	-1,292	Closed	-$181K	–	180
2025 Q3	$181K	Sell	1,292 -16	-1%	-$2.16K	0.02%	176
2025 Q2	$164K	Sell	1,308 -108	-8%	-$13.5K	0.02%	181
2025 Q1	$194K	Buy	+1,416	New	+$202K	0.04%	158

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 $3.38T AUM 44.17% 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

S-Bank Fund Management's BIIB Position: Q2 2026 in Review

S-Bank Fund Management opened a new position in Biogen (BIIB) in Q2 2026: 1,792 shares worth $387K. The stake represents 0.05% of the portfolio and ranks #175 among its holdings. This is a return to the name: S-Bank Fund Management previously reported a position in BIIB as recently as Q3 2025.

S-Bank Fund Management first reported a position in BIIB in Q1 2025 and has held it in 4 quarters since. 1,047 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

S-Bank Fund Management held 1,792 shares of Biogen worth $387K as of Q2 2026.
Biogen was a new S-Bank Fund Management position in Q2 2026.
Biogen made up 0.05% of S-Bank Fund Management's portfolio in Q2 2026, its #175 holding.
S-Bank Fund Management first reported a position in Biogen in Q1 2025 and has held it in 4 quarters since.
1,047 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on S-Bank Fund Management's 13F filing for Q2 2026, filed 4 Aug 2026.