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North Dakota State Investment Board’s Biogen BIIB Stock Holding History

North Dakota State Investment Board’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 		$938K Sell
4,343
-2,327
-35% -$445K 0.04% 347
2026
Q1 		$1.22M Sell
6,670
-905
-12% -$167K 0.05% 277
2025
Q4 		$1.33M Buy
+7,575
New +$1.24M 0.05% 285

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

North Dakota State Investment Board's BIIB Position: Q2 2026 in Review

North Dakota State Investment Board reduced its Biogen (BIIB) stake by 35% in Q2 2026, selling an estimated $445K and leaving 4,343 shares worth $938K. The position accounts for 0.04% of the portfolio, ranked #347.

North Dakota State Investment Board first reported a position in BIIB in Q4 2025 and has held it in 3 quarters since. The position peaked at $1.33M in Q4 2025. 1,038 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • North Dakota State Investment Board held 4,343 shares of Biogen worth $938K as of Q2 2026.
  • North Dakota State Investment Board sold 2,327 Biogen shares in Q2 2026, an estimated $445K.
  • Biogen made up 0.04% of North Dakota State Investment Board's portfolio in Q2 2026, its #347 holding.
  • North Dakota State Investment Board first reported a position in Biogen in Q4 2025 and has held it in 3 quarters since.
  • North Dakota State Investment Board's Biogen position peaked at $1.33M in Q4 2025.
  • 1,038 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on North Dakota State Investment Board's 13F filing for Q2 2026, filed 4 Aug 2026.