Twin Lakes Capital Management’s Biogen BIIB Stock Holding History

Twin Lakes Capital 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 Q1	–	Sell	-250	Closed	-$44K	–	221
2025 Q4	$44K	Hold	250	–	–	0.02%	138
2025 Q3	$35K	Hold	250	–	–	0.02%	151
2025 Q2	$31.4K	Hold	250	–	–	0.02%	153
2025 Q1	$34.2K	Sell	250 -261	-51%	-$37.3K	0.02%	147
2024 Q4	$78.1K	Hold	511	–	–	0.05%	115
2024 Q3	$99.1K	Hold	511	–	–	0.06%	105
2024 Q2	$118K	Hold	511	–	–	0.08%	100
2024 Q1	$110K	Hold	511	–	–	0.07%	102
2023 Q4	$132K	Hold	511	–	–	0.09%	94
2023 Q3	$131K	Hold	511	–	–	0.1%	95
2023 Q2	$146K	Hold	511	–	–	0.1%	95
2023 Q1	$142K	Hold	511	–	–	0.11%	94
2022 Q4	$142K	Hold	511	–	–	0.11%	94
2022 Q3	$136K	Hold	511	–	–	0.11%	96
2022 Q2	$104K	Hold	511	–	–	0.08%	88
2022 Q1	$108K	Hold	511	–	–	0.06%	113
2021 Q4	$123K	Hold	511	–	–	0.07%	111
2021 Q3	$145K	Sell	511 -17	-3%	-$5.57K	0.09%	103
2021 Q2	$183K	Hold	528	–	–	0.1%	85
2021 Q1	$148K	Buy	+528	New	+$142K	0.09%	91

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

Twin Lakes Capital Management's BIIB Position: Q1 2026 in Review

Twin Lakes Capital Management sold out of Biogen (BIIB) in Q1 2026, closing a stake of 250 shares — an estimated $44K sold.

Twin Lakes Capital Management first reported a position in BIIB in Q1 2021 and held it in 20 quarters. The position peaked at $183K in Q2 2021. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

Twin Lakes Capital Management reported no remaining Biogen position as of Q1 2026 after selling out during the quarter.
Twin Lakes Capital Management sold 250 Biogen shares in Q1 2026, an estimated $44K.
Twin Lakes Capital Management first reported a position in Biogen in Q1 2021 and held it in 20 quarters.
Twin Lakes Capital Management's Biogen position peaked at $183K in Q2 2021.
1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Twin Lakes Capital Management's 13F filing for Q1 2026, filed 18 May 2026.