Osaic Holdings’s Biogen BIIB Stock Holding History

Osaic Holdings’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
2021 Q1	–	Sell	-1	Closed	-$2K	–	6799
2020 Q4	$2K	Buy	+1	New	+$258	﹤0.01%	6039
2020 Q2	–	Sell	-1	Closed	-$2K	–	6110
2020 Q1	$2K	Buy	+1	New	+$303	﹤0.01%	5648

Other funds holding BIIB

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Osaic Holdings's BIIB Position: Q1 2026 in Review

Osaic Holdings reduced its Biogen (BIIB) stake by 17% in Q1 2026, selling an estimated $450K and leaving 12,005 shares worth $2.2M. The position accounts for ﹤0.01% of the portfolio, ranked #1994.

Osaic Holdings first reported a position in BIIB in Q1 2020 and has held it in 25 quarters since. The position peaked at $12.6M in Q2 2021. 1,004 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

Osaic Holdings held 12,005 shares of Biogen worth $2.2M as of Q1 2026.
Osaic Holdings sold 2,442 Biogen shares in Q1 2026, an estimated $450K.
Biogen made up ﹤0.01% of Osaic Holdings's portfolio in Q1 2026, its #1994 holding.
Osaic Holdings first reported a position in Biogen in Q1 2020 and has held it in 25 quarters since.
Osaic Holdings's Biogen position peaked at $12.6M in Q2 2021.
1,004 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Osaic Holdings's 13F filing for Q1 2026, filed 15 May 2026.