PEAK6
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PEAK6’s Biogen BIIB Stock Holding History

PEAK6’s Portfolio BIIB Stock Details BIIB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change % 		Capital Flow Portfolio Weight Portfolio Position
2025
Q2 		$2.17M Sell
17,286
-13,336
-44% -$1.67M ﹤0.01% 176
2025
Q1 		$4.19M Buy
30,622
+21,871
+250% +$2.99M 0.01% 116
2024
Q4 		$1.34M Buy
+8,751
New +$1.34M ﹤0.01% 242