Position in BIIB
as of Jun 30, 2026
· filed Aug 4, 2026
Position Value
$272,976,467
-$38,698,831 QoQ
Shares Held
1,263,429
-25.7% QoQ
Ownership
0.856%
of shares outstanding
% of Portfolio
0.24%
of 13F equity value
Holder Rank
#17
of 1,036 holders
Holding Since
Mar 2020
11 quarters on record
Voting authority
Sole 89%
Shared 0%
None 11%
Common Shares in BIIB Over Time
Shares Held
Position Value (USD)
Position in Drug Manufacturers - General
Healthcare · as of Jun 30, 2026Boston Partners holds $3,635,506,449 across 12 Drug Manufacturers - General names. BIIB ranks #5 (7.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ABBV |
AbbVie Inc.
|
4,784,316 | $1,203,925,277 | |
| 2 | GILD |
Gilead Sciences, Inc.
|
6,017,958 | $760,308,811 | |
| 3 | AZN |
Astrazeneca PLC
|
3,177,627 | $602,541,630 | |
| 4 | JNJ |
Johnson & Johnson
|
1,113,805 | $282,873,054 | |
| 5 | BIIB |
Biogen Inc.
This page
|
1,263,429 | $272,976,467 | |
| 6 | AMGN |
Amgen Inc
|
637,923 | $231,004,675 | |
| 7 | SNY |
Sanofi
|
3,844,844 | $164,021,044 | |
| 8 | MRK |
Merck & Co., Inc.
|
629,240 | $80,857,340 |
All Filings in BIIB
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11 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $272,976,467 | 1,263,429 | Shares | Defined | 2026-08-04 | |
| 2026-03-31 | $311,675,298 | 1,700,078 | Shares | Defined | 2026-05-11 | |
| 2025-12-31 | $302,807,513 | 1,720,595 | Shares | Defined | 2026-02-13 | |
| 2021-12-31 | $75,282,577 | 313,782 | Shares | Defined | 2022-02-04 | |
| 2021-09-30 | $94,119,359 | 332,589 | Shares | Other | 2021-11-05 | |
| 2021-06-30 | $111,181,409 | 321,083 | Shares | Other | 2021-08-12 | |
| 2021-03-31 | $85,613,570 | 306,036 | Shares | Other | 2021-05-10 | |
| 2020-12-31 | $71,698,679 | 292,815 | Shares | Other | 2021-02-10 | |
| 2020-09-30 | $82,796,262 | 291,865 | Shares | Defined | 2020-11-13 | |
| 2020-06-30 | $81,542,283 | 304,774 | Shares | Other | 2020-08-12 | |
| 2020-03-31 | $107,383,801 | 339,414 | Shares | Other | 2020-05-13 | |
| No filing history on record for this holder in this stock. | ||||||