Jain Global’s Biogen BIIB Stock Holding History

Jain Global’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 Q1	–	Sell	-353,173	Closed	-$62.2M	–	1230
2025 Q4	$62.2M	Buy	+353,173	New	+$57.7M	0.3%	58
2025 Q3	–	Sell	-26,046	Closed	-$3.27M	–	1047
2025 Q2	$3.27M	Buy	26,046 +2,670	+11%	+$333K	0.03%	411
2025 Q1	$3.2M	Buy	+23,376	New	+$3.34M	0.04%	289

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

Jain Global's BIIB Position: Q1 2026 in Review

Jain Global sold out of Biogen (BIIB) in Q1 2026, closing a stake of 353,173 shares — an estimated $62.2M sold.

Jain Global first reported a position in BIIB in Q1 2025 and held it in 3 quarters. The position peaked at $62.2M in Q4 2025. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

Jain Global reported no remaining Biogen position as of Q1 2026 after selling out during the quarter.
Jain Global sold 353,173 Biogen shares in Q1 2026, an estimated $62.2M.
Jain Global first reported a position in Biogen in Q1 2025 and held it in 3 quarters.
Jain Global's Biogen position peaked at $62.2M in Q4 2025.
1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Jain Global's 13F filing for Q1 2026, filed 15 May 2026.