Osaic Holdings
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Osaic Holdings’s Biogen BIIB Stock Holding History

Osaic Holdings’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
2021
Q1 		– Sell
-1
Closed -$2K – 6799
2020
Q4 		$2K Buy
+1
New +$258 ﹤0.01% 6039
2020
Q2 		– Sell
-1
Closed -$2K – 6110
2020
Q1 		$2K Buy
+1
New +$303 ﹤0.01% 5648

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

Osaic Holdings's BIIB Position: Q2 2026 in Review

Osaic Holdings increased its Biogen (BIIB) stake by 12% in Q2 2026, buying an estimated $282K and bringing the position to 13,479 shares worth $2.91M. The position accounts for ﹤0.01% of the portfolio, ranked #1987.

Osaic Holdings first reported a position in BIIB in Q1 2020 and has held it in 26 quarters since. The position peaked at $12.6M in Q2 2021. 1,046 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Osaic Holdings held 13,479 shares of Biogen worth $2.91M as of Q2 2026.
  • Osaic Holdings bought 1,474 Biogen shares in Q2 2026, an estimated $282K.
  • Biogen made up ﹤0.01% of Osaic Holdings's portfolio in Q2 2026, its #1987 holding.
  • Osaic Holdings first reported a position in Biogen in Q1 2020 and has held it in 26 quarters since.
  • Osaic Holdings's Biogen position peaked at $12.6M in Q2 2021.
  • 1,046 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Osaic Holdings's 13F filing for Q2 2026, filed 14 Aug 2026.