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Cairn Investment Group’s Biogen BIIB Stock Holding History

Cairn Investment Group’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 		$1.48M Sell
8,043
-53
-0.7% -$9.77K 0.73% 34
2025
Q4 		$1.43M Sell
8,096
-108
-1% -$17.6K 0.68% 36
2025
Q3 		$1.15M Sell
8,204
-70
-0.8% -$9.46K 0.52% 40
2025
Q2 		$1.04M Sell
8,274
-82
-1% -$10.2K 0.54% 39
2025
Q1 		$1.14M Sell
8,356
-7
-0.1% -$1K 0.65% 36
2024
Q4 		$1.28M Sell
8,363
-3,153
-27% -$532K 0.75% 36
2024
Q3 		$2.23M Buy
11,516
+366
+3% +$76.6K 1.23% 27
2024
Q2 		$2.58M Sell
11,150
-183
-2% -$39.8K 1.51% 27
2024
Q1 		$2.44M Buy
11,333
+207
+2% +$48.5K 1.4% 25
2023
Q4 		$2.88M Buy
11,126
+323
+3% +$79.3K 1.8% 20
2023
Q3 		$2.78M Buy
10,803
+622
+6% +$166K 1.84% 20
2023
Q2 		$2.9M Buy
10,181
+361
+4% +$107K 1.88% 21
2023
Q1 		$2.73M Buy
9,820
+255
+3% +$70.6K 1.9% 19
2022
Q4 		$2.65M Buy
9,565
+445
+5% +$126K 1.97% 16
2022
Q3 		$2.44M Sell
9,120
-90
-1% -$19.1K 1.97% 15
2022
Q2 		$1.88M Buy
9,210
+100
+1% +$20.4K 1.46% 25
2022
Q1 		$2.03M Buy
9,110
+1,260
+16% +$274K 1.29% 29
2021
Q4 		$1.88M Buy
7,850
+600
+8% +$154K 1.3% 28
2021
Q3 		$2.05M Buy
7,250
+113
+2% +$37K 1.52% 21
2021
Q2 		$2.47M Buy
7,137
+175
+3% +$53K 1.81% 12
2021
Q1 		$1.95M Sell
6,962
-130
-2% -$35.1K 1.62% 19
2020
Q4 		$1.74M Buy
7,092
+82
+1% +$21.2K 1.64% 24
2020
Q3 		$1.99M Buy
7,010
+5,835
+497% +$1.63M 2.11% 16
2020
Q2 		$314K Sell
1,175
-55
-4% -$16.5K 0.38% 61
2020
Q1 		$389K Sell
1,230
-200
-14% -$60.7K 0.58% 52
2019
Q4 		$424K Buy
+1,430
New +$397K 0.42% 69

Other funds holding BIIB

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
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
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Cairn Investment Group's BIIB Position: Q1 2026 in Review

Cairn Investment Group reduced its Biogen (BIIB) stake by 0.65% in Q1 2026, selling an estimated $9.77K and leaving 8,043 shares worth $1.48M. The position accounts for 0.73% of the portfolio, ranked #34.

Cairn Investment Group first reported a position in BIIB in Q4 2019 and has held it in 26 quarters since. The position peaked at $2.9M in Q2 2023. 1,003 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Cairn Investment Group held 8,043 shares of Biogen worth $1.48M as of Q1 2026.
  • Cairn Investment Group sold 53 Biogen shares in Q1 2026, an estimated $9.77K.
  • Biogen made up 0.73% of Cairn Investment Group's portfolio in Q1 2026, its #34 holding.
  • Cairn Investment Group first reported a position in Biogen in Q4 2019 and has held it in 26 quarters since.
  • Cairn Investment Group's Biogen position peaked at $2.9M in Q2 2023.
  • 1,003 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Cairn Investment Group's 13F filing for Q1 2026, filed 29 Apr 2026.