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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
Q2 		$1.26M Buy
5,838
+221
+4% +$42.3K 0.01% 1316
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

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

Sanctuary Advisors's BIIB Position: Q2 2026 in Review

Sanctuary Advisors increased its Biogen (BIIB) stake by 3.9% in Q2 2026, buying an estimated $42.3K and bringing the position to 5,838 shares worth $1.26M. The position accounts for 0.01% of the portfolio, ranked #1316.

Sanctuary Advisors first reported a position in BIIB in Q2 2024 and has held it in 9 quarters since. 1,046 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Sanctuary Advisors held 5,838 shares of Biogen worth $1.26M as of Q2 2026.
  • Sanctuary Advisors bought 221 Biogen shares in Q2 2026, an estimated $42.3K.
  • Biogen made up 0.01% of Sanctuary Advisors's portfolio in Q2 2026, its #1316 holding.
  • Sanctuary Advisors first reported a position in Biogen in Q2 2024 and has held it in 9 quarters since.
  • 1,046 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Sanctuary Advisors's 13F filing for Q2 2026, filed 13 Aug 2026.