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Sanctuary Advisors’s Biogen BIIB Stock Holding History

Sanctuary 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
2026
Q1 		$1.03M Buy
5,617
+445
+9% +$82K 0.01% 1319
2025
Q4 		$910K Buy
5,172
+1,375
+36% +$225K 0.01% 1365
2025
Q3 		$532K Buy
3,797
+616
+19% +$83.3K ﹤0.01% 1677
2025
Q2 		$400K Buy
3,181
+942
+42% +$117K ﹤0.01% 1752
2025
Q1 		$306K Buy
2,239
+116
+5% +$16.6K ﹤0.01% 1787
2024
Q4 		$310K Sell
2,123
-1,842
-46% -$311K ﹤0.01% 1975
2024
Q3 		$626K Sell
3,965
-2,016
-34% -$422K ﹤0.01% 1562
2024
Q2 		$1.25M Buy
+5,981
New +$1.3M 0.01% 1074

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

Sanctuary Advisors's BIIB Position: Q1 2026 in Review

Sanctuary Advisors increased its Biogen (BIIB) stake by 8.6% in Q1 2026, buying an estimated $82K and bringing the position to 5,617 shares worth $1.03M. The position accounts for 0.01% of the portfolio, ranked #1319.

Sanctuary Advisors first reported a position in BIIB in Q2 2024 and has held it in 8 quarters since. The position peaked at $1.25M in Q2 2024. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Sanctuary Advisors held 5,617 shares of Biogen worth $1.03M as of Q1 2026.
  • Sanctuary Advisors bought 445 Biogen shares in Q1 2026, an estimated $82K.
  • Biogen made up 0.01% of Sanctuary Advisors's portfolio in Q1 2026, its #1319 holding.
  • Sanctuary Advisors first reported a position in Biogen in Q2 2024 and has held it in 8 quarters since.
  • Sanctuary Advisors's Biogen position peaked at $1.25M in Q2 2024.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Sanctuary Advisors's 13F filing for Q1 2026, filed 5 May 2026.