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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
Q2 		– Sell
-1,129
Closed -$211K – 219
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

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Tradewinds LLC's BIIB Position: Q2 2026 in Review

Tradewinds LLC sold out of Biogen (BIIB) in Q2 2026, closing a stake of 1,129 shares — an estimated $211K sold.

Tradewinds LLC first reported a position in BIIB in Q4 2021 and held it in 9 quarters. The position peaked at $4.25M in Q4 2022. 1,043 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Tradewinds LLC reported no remaining Biogen position as of Q2 2026 after selling out during the quarter.
  • Tradewinds LLC sold 1,129 Biogen shares in Q2 2026, an estimated $211K.
  • Tradewinds LLC first reported a position in Biogen in Q4 2021 and held it in 9 quarters.
  • Tradewinds LLC's Biogen position peaked at $4.25M in Q4 2022.
  • 1,043 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Tradewinds LLC's 13F filing for Q2 2026, filed 14 Aug 2026.