Boston Partners

CIK
1386060
City
BOSTON
State / Country
MA

Top Portfolio Positions

736 positions · $95,327,376,813 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio Open

Portfolio Trend

25 quarters · across all stocks

Holdings in BIIB

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Shares Held

Position Value (USD)

10 quarters on record
Report Date Value (USD) Shares
2026-03-31 $311,675,298 1,700,078
2025-12-31 $302,807,513 1,720,595
2021-12-31 $75,282,577 313,782
2021-09-30 $94,119,359 332,589
2021-06-30 $111,181,409 321,083
2021-03-31 $85,613,570 306,036
2020-12-31 $71,698,679 292,815
2020-09-30 $82,796,262 291,865
2020-06-30 $81,542,283 304,774
2020-03-31 $107,383,801 339,414