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Westwood Holdings Group’s Biogen BIIB Stock Holding History

Westwood Holdings Group’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 		$601K Buy
+2,782
New +$532K ﹤0.01% 416
2023
Q4 		– Sell
-2,683
Closed -$690K – 459
2023
Q3 		$690K Sell
2,683
-110
-4% -$29.4K 0.01% 368
2023
Q2 		$796K Hold
2,793
– – 0.01% 359
2023
Q1 		$777K Hold
2,793
– – 0.01% 375
2022
Q4 		$773K Buy
+2,793
New +$789K 0.01% 376

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

Westwood Holdings Group's BIIB Position: Q2 2026 in Review

Westwood Holdings Group opened a new position in Biogen (BIIB) in Q2 2026: 2,782 shares worth $601K. The stake represents ﹤0.01% of the portfolio and ranks #416 among its holdings. This is a return to the name: Westwood Holdings Group previously reported a position in BIIB as recently as Q3 2023.

Westwood Holdings Group first reported a position in BIIB in Q4 2022 and has held it in 5 quarters since. The position peaked at $796K in Q2 2023. 1,046 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Westwood Holdings Group held 2,782 shares of Biogen worth $601K as of Q2 2026.
  • Biogen was a new Westwood Holdings Group position in Q2 2026.
  • Biogen made up ﹤0.01% of Westwood Holdings Group's portfolio in Q2 2026, its #416 holding.
  • Westwood Holdings Group first reported a position in Biogen in Q4 2022 and has held it in 5 quarters since.
  • Westwood Holdings Group's Biogen position peaked at $796K in Q2 2023.
  • 1,046 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

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