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Mountain Hill Investment Partners’s Biogen BIIB Stock Holding History

Mountain Hill Investment Partners’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
2025
Q4 		– Sell
-75
Closed -$10.5K – 221
2025
Q3 		$10.5K Hold
75
– – 0.01% 121
2025
Q2 		$9.42K Hold
75
– – 0.01% 102
2025
Q1 		$10.3K Sell
75
-75
-50% -$10.7K 0.01% 103
2024
Q4 		$22.9K Buy
+150
New +$25.3K 0.02% 92

Other funds holding BIIB

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 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
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
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
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 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

Mountain Hill Investment Partners's BIIB Position: Q4 2025 in Review

Mountain Hill Investment Partners sold out of Biogen (BIIB) in Q4 2025, closing a stake of 75 shares — an estimated $10.5K sold.

Mountain Hill Investment Partners first reported a position in BIIB in Q4 2024 and held it in 4 quarters. The position peaked at $22.9K in Q4 2024. 1,000 funds tracked by Wall St. Rank hold BIIB as of Q4 2025.

  • Mountain Hill Investment Partners reported no remaining Biogen position as of Q4 2025 after selling out during the quarter.
  • Mountain Hill Investment Partners sold 75 Biogen shares in Q4 2025, an estimated $10.5K.
  • Mountain Hill Investment Partners first reported a position in Biogen in Q4 2024 and held it in 4 quarters.
  • Mountain Hill Investment Partners's Biogen position peaked at $22.9K in Q4 2024.
  • 1,000 funds tracked by Wall St. Rank held Biogen as of Q4 2025.

Based on Mountain Hill Investment Partners's 13F filing for Q4 2025, filed 26 Jan 2026.