UCI
BIIB icon

Uncommon Cents Investing’s Biogen BIIB Stock Holding History

Uncommon Cents Investing’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 		$598K Sell
2,769
-10
-0.4% -$1.91K 0.13% 157
2026
Q1 		$509K Hold
2,779
– – 0.12% 158
2025
Q4 		$489K Buy
2,779
+30
+1% +$4.9K 0.12% 158
2025
Q3 		$385K Buy
2,749
+10
+0.4% +$1.35K 0.1% 171
2025
Q2 		$344K Sell
2,739
-716
-21% -$89.2K 0.09% 174
2025
Q1 		$473K Sell
3,455
-10
-0.3% -$1.43K 0.14% 145
2024
Q4 		$530K Sell
3,465
-75
-2% -$12.7K 0.16% 143
2024
Q3 		$686K Sell
3,540
-1,330
-27% -$278K 0.19% 126
2024
Q2 		$1.13M Buy
4,870
+10
+0.2% +$2.17K 0.35% 86
2024
Q1 		$1.05M Buy
4,860
+350
+8% +$82K 0.32% 97
2023
Q4 		$1.17M Buy
4,510
+795
+21% +$195K 0.39% 80
2023
Q3 		$955K Buy
3,715
+915
+33% +$245K 0.35% 85
2023
Q2 		$798K Buy
2,800
+1,460
+109% +$435K 0.28% 101
2023
Q1 		$373K Buy
1,340
+395
+42% +$109K 0.14% 135
2022
Q4 		$262K Buy
+945
New +$267K 0.1% 141

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

Uncommon Cents Investing's BIIB Position: Q2 2026 in Review

Uncommon Cents Investing reduced its Biogen (BIIB) stake by 0.36% in Q2 2026, selling an estimated $1.91K and leaving 2,769 shares worth $598K. The position accounts for 0.13% of the portfolio, ranked #157.

Uncommon Cents Investing first reported a position in BIIB in Q4 2022 and has held it in 15 quarters since. The position peaked at $1.17M in Q4 2023. 1,038 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Uncommon Cents Investing held 2,769 shares of Biogen worth $598K as of Q2 2026.
  • Uncommon Cents Investing sold 10 Biogen shares in Q2 2026, an estimated $1.91K.
  • Biogen made up 0.13% of Uncommon Cents Investing's portfolio in Q2 2026, its #157 holding.
  • Uncommon Cents Investing first reported a position in Biogen in Q4 2022 and has held it in 15 quarters since.
  • Uncommon Cents Investing's Biogen position peaked at $1.17M in Q4 2023.
  • 1,038 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Uncommon Cents Investing's 13F filing for Q2 2026, filed 20 Jul 2026.