Robeco Institutional Asset Management B.V.

CIK
1418773
City
ROTTERDAM
State / Country
P7

Top Portfolio Positions

831 positions · $68,409,328,713 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio Open

Portfolio Trend

52 quarters · across all stocks

Holdings in BIIB

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Shares Held

Position Value (USD)

25 quarters on record
Report Date Value (USD) Shares
2026-03-31 $139,912,689 763,174
2025-12-31 $107,513,698 610,908
2025-09-30 $94,001,244 671,054
2025-06-30 $56,359,391 448,757
2025-03-31 $62,060,908 453,529
2024-12-31 $62,433,565 408,276
2024-09-30 $53,249,398 274,708
2024-06-30 $49,826,695 214,937
2024-03-31 $49,921,795 231,516
2023-12-31 $75,959,345 293,540
2023-09-30 $87,848,588 341,810
2023-06-30 $97,765,362 343,217
2023-03-31 $100,493,109 361,447
2022-12-31 $86,719,436 313,157
2022-09-30 $82,186,872 307,816
2022-06-30 $37,017,353 181,511
2022-03-31 $37,401,717 177,596
2021-12-31 $45,888,298 191,265
2021-09-30 $48,719,841 172,161
2021-06-30 $56,942,370 164,445
2021-03-31 $77,096,022 275,589
2020-12-31 $79,456,825 324,499
2020-09-30 $159,730,562 563,066
2020-06-30 $107,731,147 402,658
2020-03-31 $82,084,158 259,448