T. Rowe Price Investment Management
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T. Rowe Price Investment Management’s Biogen BIIB Stock Holding History

T. Rowe Price Investment Management’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
Q2 		$175M Sell
2025
Q1 		$364M Sell
2024
Q4 		$474M Sell
2024
Q3 		$825M Sell
2024
Q2 		$1.32B Buy
2024
Q1 		$1.11B Sell
2023
Q4 		$1.39B Buy
2023
Q3 		$1.22B Buy
2023
Q2 		$968M Buy