Mattson Financial Services’s Biogen BIIB Stock Holding History

Mattson Financial Services’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
2025 Q1	–	Sell	-100	Closed	-$19.4K	–	336
2024 Q4	$19.4K	Buy	+100	New	+$16.9K	0.01%	227

Other funds holding BIIB

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

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

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

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

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

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

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

Mattson Financial Services's BIIB Position: Q1 2025 in Review

Mattson Financial Services sold out of Biogen (BIIB) in Q1 2025, closing a stake of 100 shares — an estimated $19.4K sold.

Mattson Financial Services first reported a position in BIIB in Q4 2024 and held it in 1 quarter. The position peaked at $19.4K in Q4 2024. 883 funds tracked by Wall St. Rank hold BIIB as of Q1 2025.

Mattson Financial Services reported no remaining Biogen position as of Q1 2025 after selling out during the quarter.
Mattson Financial Services sold 100 Biogen shares in Q1 2025, an estimated $19.4K.
Mattson Financial Services first reported a position in Biogen in Q4 2024 and held it in 1 quarter.
Mattson Financial Services's Biogen position peaked at $19.4K in Q4 2024.
883 funds tracked by Wall St. Rank held Biogen as of Q1 2025.

Based on Mattson Financial Services's 13F filing for Q1 2025, filed 22 May 2025.