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Osmosis Investment Management UK’s Biogen BIIB Stock Holding History

Osmosis Investment Management UK’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 		$784K Sell
3,629
-3,023
-45% -$578K 0.04% 297
2026
Q1 		$1.22M Buy
6,652
+17
+0.3% +$3.13K 0.03% 303
2025
Q4 		$1.17M Buy
+6,635
New +$1.08M 0.03% 284

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 $3.38T AUM 44.17% 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

Osmosis Investment Management UK's BIIB Position: Q2 2026 in Review

Osmosis Investment Management UK reduced its Biogen (BIIB) stake by 45% in Q2 2026, selling an estimated $578K and leaving 3,629 shares worth $784K. The position accounts for 0.04% of the portfolio, ranked #297.

Osmosis Investment Management UK first reported a position in BIIB in Q4 2025 and has held it in 3 quarters since. The position peaked at $1.22M in Q1 2026. 1,046 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Osmosis Investment Management UK held 3,629 shares of Biogen worth $784K as of Q2 2026.
  • Osmosis Investment Management UK sold 3,023 Biogen shares in Q2 2026, an estimated $578K.
  • Biogen made up 0.04% of Osmosis Investment Management UK's portfolio in Q2 2026, its #297 holding.
  • Osmosis Investment Management UK first reported a position in Biogen in Q4 2025 and has held it in 3 quarters since.
  • Osmosis Investment Management UK's Biogen position peaked at $1.22M in Q1 2026.
  • 1,046 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Osmosis Investment Management UK's 13F filing for Q2 2026, filed 13 Aug 2026.