Position in BIIB
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$673,560,350
+$130,602,708 QoQ
Shares Held
3,117,469
+5.3% QoQ
Ownership
2.11%
of shares outstanding
% of Portfolio
0.12%
of 13F equity value
Holder Rank
#8
of 1,031 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 0%
Shared 99%
None 1%
Common Shares in BIIB Over Time
Shares Held
Position Value (USD)
Position in Drug Manufacturers - General
Healthcare · as of Jun 30, 2026WELLINGTON MANAGEMENT GROUP LLP holds $41,461,553,100 across 12 Drug Manufacturers - General names. BIIB ranks #8 (1.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | LLY |
ELI LILLY & Co
|
10,998,953 | $13,192,475,293 | |
| 2 | MRK |
Merck & Co., Inc.
|
86,249,283 | $11,083,032,864 | |
| 3 | JNJ |
Johnson & Johnson
|
22,588,696 | $5,736,851,118 | |
| 4 | AZN |
Astrazeneca PLC
|
28,537,243 | $5,411,232,013 | |
| 5 | GILD |
Gilead Sciences, Inc.
|
12,699,683 | $1,604,477,945 | |
| 6 | ABBV |
AbbVie Inc.
|
5,055,589 | $1,272,188,413 | |
| 7 | AMGN |
Amgen Inc
|
2,742,271 | $993,031,171 | |
| 8 | BIIB |
Biogen Inc.
This page
|
3,117,469 | $673,560,350 |
All Filings in BIIB
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26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $673,560,350 | 3,117,469 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $542,957,642 | 2,961,641 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $624,987,827 | 3,551,269 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $594,850,278 | 4,246,504 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $602,633,566 | 4,798,420 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $639,376,277 | 4,672,437 | Shares | Defined | 2025-05-13 | |
| 2024-12-31 | $754,006,159 | 4,930,723 | Shares | Defined | 2025-02-12 | |
| 2024-09-30 | $994,630,446 | 5,131,193 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $1,197,695,939 | 5,166,491 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $1,104,056,214 | 5,120,142 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $1,377,793,949 | 5,324,396 | Shares | Defined | 2024-02-12 | |
| 2023-09-30 | $1,381,251,410 | 5,374,310 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $1,522,910,359 | 5,346,359 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $1,516,066,446 | 5,452,888 | Shares | Defined | 2023-05-12 | |
| 2022-12-31 | $1,498,473,099 | 5,411,213 | Shares | Defined | 2023-02-13 | |
| 2022-09-30 | $1,371,209,739 | 5,135,617 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $1,282,114,693 | 6,286,725 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $1,316,150,173 | 6,249,526 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $1,483,774,438 | 6,184,455 | Shares | Defined | 2022-02-11 | |
| 2021-09-30 | $1,578,438,980 | 5,577,720 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $1,939,756,405 | 5,601,861 | Shares | Defined | 2021-08-16 | |
| 2021-03-31 | $1,651,319,766 | 5,902,841 | Shares | Defined | 2021-05-17 | |
| 2020-12-31 | $1,415,773,905 | 5,781,973 | Shares | Defined | 2021-02-12 | |
| 2020-09-30 | $1,377,888,224 | 4,857,192 | Shares | Defined | 2020-11-16 | |
| 2020-06-30 | $1,277,219,485 | 4,773,760 | Shares | Defined | 2020-08-14 | |
| 2020-03-31 | $1,295,651,711 | 4,095,239 | Shares | Defined | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||