GSEP
BIIB icon

Golden State Equity Partners’s Biogen BIIB Stock Holding History

Golden State Equity Partners’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
Q1 		$12.8K Buy
+70
New +$12.9K ﹤0.01% 1224
2024
Q4 		– Sell
-9
Closed -$1.74K – 490
2024
Q3 		$1.74K Buy
+9
New +$1.88K ﹤0.01% 708

Other funds holding BIIB

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Golden State Equity Partners's BIIB Position: Q1 2026 in Review

Golden State Equity Partners opened a new position in Biogen (BIIB) in Q1 2026: 70 shares worth $12.8K. The stake represents ﹤0.01% of the portfolio and ranks #1224 among its holdings. This is a return to the name: Golden State Equity Partners previously reported a position in BIIB as recently as Q3 2024.

Golden State Equity Partners first reported a position in BIIB in Q3 2024 and has held it in 2 quarters since. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Golden State Equity Partners held 70 shares of Biogen worth $12.8K as of Q1 2026.
  • Biogen was a new Golden State Equity Partners position in Q1 2026.
  • Biogen made up ﹤0.01% of Golden State Equity Partners's portfolio in Q1 2026, its #1224 holding.
  • Golden State Equity Partners first reported a position in Biogen in Q3 2024 and has held it in 2 quarters since.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Golden State Equity Partners's 13F filing for Q1 2026, filed 28 Apr 2026.