Tradewinds LLC’s Biogen BIIB Stock Holding History

Tradewinds LLC’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	$211K	Buy	+1,129	New	+$208K	0.07%	145
2024 Q3	–	Sell	-1,128	Closed	-$261K	–	165
2024 Q2	$261K	Hold	1,128	–	–	0.08%	165
2024 Q1	$243K	Buy	+1,128	New	+$264K	0.12%	76
2023 Q3	$294K	Buy	+1,144	New	+$306K	0.17%	91
2023 Q2	–	Sell	-1,146	Closed	-$319K	–	103
2023 Q1	$319K	Sell	1,146 -12,612	-92%	-$3.49M	0.19%	88
2022 Q4	$4.25M	Buy	13,758 +12,572	+1,060%	+$3.55M	2.74%	11
2022 Q3	$317K	Sell	1,186 -13	-1%	-$2.76K	0.23%	84
2022 Q2	$245K	Buy	+1,199	New	+$245K	0.17%	101
2021 Q4	$296K	Buy	+1,144	New	+$294K	0.35%	44

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

Tradewinds LLC's BIIB Position: Q1 2026 in Review

Tradewinds LLC opened a new position in Biogen (BIIB) in Q1 2026: 1,129 shares worth $211K. The stake represents 0.07% of the portfolio and ranks #145 among its holdings. This is a return to the name: Tradewinds LLC previously reported a position in BIIB as recently as Q2 2024.

Tradewinds LLC first reported a position in BIIB in Q4 2021 and has held it in 9 quarters since. The position peaked at $4.25M in Q4 2022. 1,004 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

Tradewinds LLC held 1,129 shares of Biogen worth $211K as of Q1 2026.
Biogen was a new Tradewinds LLC position in Q1 2026.
Biogen made up 0.07% of Tradewinds LLC's portfolio in Q1 2026, its #145 holding.
Tradewinds LLC first reported a position in Biogen in Q4 2021 and has held it in 9 quarters since.
Tradewinds LLC's Biogen position peaked at $4.25M in Q4 2022.
1,004 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Tradewinds LLC's 13F filing for Q1 2026, filed 4 May 2026.