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Colonial River Investments’s Biogen BIIB Stock Holding History

Colonial River Investments’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 		$404K Buy
1,871
+41
+2% +$7.84K 0.12% 156
2026
Q1 		$335K Sell
1,830
-443
-19% -$81.6K 0.12% 166
2025
Q4 		$400K Buy
+2,273
New +$371K 0.14% 158

Other funds holding BIIB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $344B AUM 42.99% 1-Year Est. Return
Pictet Asset Management
Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
Citigroup
Citigroup New York $303B AUM 53.02% 1-Year Est. Return
AIM
Artemis Investment Management Edinburgh, United Kingdom $11.2B AUM 80.72% 1-Year Est. Return

Colonial River Investments's BIIB Position: Q2 2026 in Review

Colonial River Investments increased its Biogen (BIIB) stake by 2.2% in Q2 2026, buying an estimated $7.84K and bringing the position to 1,871 shares worth $404K. The position accounts for 0.12% of the portfolio, ranked #156.

Colonial River Investments first reported a position in BIIB in Q4 2025 and has held it in 3 quarters since. 569 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Colonial River Investments held 1,871 shares of Biogen worth $404K as of Q2 2026.
  • Colonial River Investments bought 41 Biogen shares in Q2 2026, an estimated $7.84K.
  • Biogen made up 0.12% of Colonial River Investments's portfolio in Q2 2026, its #156 holding.
  • Colonial River Investments first reported a position in Biogen in Q4 2025 and has held it in 3 quarters since.
  • 569 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Colonial River Investments's 13F filing for Q2 2026, filed 24 Jul 2026.