WELLINGTON MANAGEMENT GROUP LLP

CIK
902219
City
Boston
State / Country
MA

Top Portfolio Positions

1,684 positions · $526,567,851,293 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 $542,957,642 2,961,641
2025-12-31 $624,987,827 3,551,269
2025-09-30 $594,850,278 4,246,504
2025-06-30 $602,633,566 4,798,420
2025-03-31 $639,376,277 4,672,437
2024-12-31 $754,006,159 4,930,723
2024-09-30 $994,630,446 5,131,193
2024-06-30 $1,197,695,939 5,166,491
2024-03-31 $1,104,056,214 5,120,142
2023-12-31 $1,377,793,949 5,324,396
2023-09-30 $1,381,251,410 5,374,310
2023-06-30 $1,522,910,359 5,346,359
2023-03-31 $1,516,066,446 5,452,888
2022-12-31 $1,498,473,099 5,411,213
2022-09-30 $1,371,209,739 5,135,617
2022-06-30 $1,282,114,693 6,286,725
2022-03-31 $1,316,150,173 6,249,526
2021-12-31 $1,483,774,438 6,184,455
2021-09-30 $1,578,438,980 5,577,720
2021-06-30 $1,939,756,405 5,601,861
2021-03-31 $1,651,319,766 5,902,841
2020-12-31 $1,415,773,905 5,781,973
2020-09-30 $1,377,888,224 4,857,192
2020-06-30 $1,277,219,485 4,773,760
2020-03-31 $1,295,651,711 4,095,239