Blackstone Inc
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Blackstone Inc’s Biogen BIIB Stock Holding History

Blackstone Inc’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 		$445K Buy
+2,060
New +$394K ﹤0.01% 373

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

Blackstone Inc's BIIB Position: Q2 2026 in Review

Blackstone Inc opened a new position in Biogen (BIIB) in Q2 2026: 2,060 shares worth $445K. The stake represents ﹤0.01% of the portfolio and ranks #373 among its holdings.

1,038 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Blackstone Inc held 2,060 shares of Biogen worth $445K as of Q2 2026.
  • Biogen was a new Blackstone Inc position in Q2 2026.
  • Biogen made up ﹤0.01% of Blackstone Inc's portfolio in Q2 2026, its #373 holding.
  • 1,038 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Blackstone Inc's 13F filing for Q2 2026, filed 14 Aug 2026.