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Claro Advisors’s Biogen BIIB Stock Holding History

Claro Advisors’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
2025
Q4 		– Sell
-1,857
Closed -$260K – 420
2025
Q3 		$260K Sell
1,857
-45
-2% -$6.08K 0.04% 341
2025
Q2 		$239K Sell
1,902
-975
-34% -$121K 0.04% 330
2025
Q1 		$394K Buy
+2,877
New +$411K 0.05% 320
2019
Q1 		– Sell
-227
Closed -$80K – 234
2018
Q4 		$80K Buy
+227
New +$72.4K 0.06% 263

Other funds holding BIIB

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
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
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
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
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $935B AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Claro Advisors's BIIB Position: Q4 2025 in Review

Claro Advisors sold out of Biogen (BIIB) in Q4 2025, closing a stake of 1,857 shares — an estimated $260K sold.

Claro Advisors first reported a position in BIIB in Q4 2018 and held it in 4 quarters. The position peaked at $394K in Q1 2025. 998 funds tracked by Wall St. Rank hold BIIB as of Q4 2025.

  • Claro Advisors reported no remaining Biogen position as of Q4 2025 after selling out during the quarter.
  • Claro Advisors sold 1,857 Biogen shares in Q4 2025, an estimated $260K.
  • Claro Advisors first reported a position in Biogen in Q4 2018 and held it in 4 quarters.
  • Claro Advisors's Biogen position peaked at $394K in Q1 2025.
  • 998 funds tracked by Wall St. Rank held Biogen as of Q4 2025.

Based on Claro Advisors's 13F filing for Q4 2025, filed 17 Feb 2026.