Position in BIIB
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$132,112,911
+$6,709,655 QoQ
Shares Held
720,629
+1.1% QoQ
Ownership
0.488%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 80.09017122541557.ToString("F0")%
Shared 15.484805635077134.ToString("F0")%
None 4.425023139507291.ToString("F0")%
Common Shares in BIIB Over Time
Shares Held
Position Value (USD)
Position in Drug Manufacturers - General
Healthcare · as of Mar 31, 2026MASSACHUSETTS FINANCIAL SERVICES CO /MA/ holds $7,300,763,534 across 12 Drug Manufacturers - General names. BIIB ranks #5 (1.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | JNJ |
Johnson & Johnson
|
13,434,302 | $3,283,880,778 | |
| 2 | PFE |
Pfizer Inc
|
56,911,830 | $1,598,084,183 | |
| 3 | ABBV |
AbbVie Inc.
|
5,610,330 | $1,220,190,668 | |
| 4 | GILD |
Gilead Sciences, Inc.
|
6,281,609 | $875,467,841 | |
| 5 | BIIB |
Biogen Inc.
This page
|
720,629 | $132,112,911 | |
| 6 | BMY |
Bristol Myers Squibb Co
|
1,050,815 | $63,731,927 | |
| 7 | NVS |
Novartis AG
|
246,655 | $37,676,550 | |
| 8 | MRK |
Merck & Co., Inc.
|
271,829 | $32,698,308 |
All Filings in BIIB
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $132,112,911 | 720,629 | Shares | Defined | 2026-05-14 | |
| 2025-12-31 | $125,403,256 | 712,559 | Shares | Sole | 2026-01-22 | |
| 2025-09-30 | $102,162,580 | 729,316 | Shares | Sole | 2025-10-29 | |
| 2025-06-30 | $90,127,274 | 717,631 | Shares | Sole | 2025-08-08 | |
| 2025-03-31 | $96,939,506 | 708,415 | Shares | Sole | 2025-05-02 | |
| 2024-12-31 | $111,994,935 | 732,376 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $137,855,904 | 711,184 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $127,193,372 | 548,673 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $123,981,855 | 574,975 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $150,103,418 | 580,065 | Shares | Sole | 2024-02-08 | |
| 2023-09-30 | $114,781,177 | 446,602 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $41,735,079 | 146,516 | Shares | Sole | 2023-08-09 | |
| 2023-03-31 | $40,894,595 | 147,087 | Shares | Sole | 2023-05-10 | |
| 2022-12-31 | $40,859,266 | 147,549 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $60,881,340 | 228,020 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $35,114,999 | 172,183 | Shares | Sole | 2022-08-09 | |
| 2022-03-31 | $43,290,091 | 205,556 | Shares | Sole | 2022-05-11 | |
| 2021-12-31 | $50,273,555 | 209,543 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $57,724,863 | 203,982 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $34,285,230 | 99,013 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $9,919,095 | 35,457 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $17,079,473 | 69,752 | Shares | Sole | 2021-05-12 | |
| 2020-09-30 | $34,566,406 | 121,850 | Shares | Sole | 2020-11-12 | |
| 2020-06-30 | $49,814,596 | 186,188 | Shares | Sole | 2020-11-20 | |
| 2020-03-31 | $70,291,406 | 222,174 | Shares | Sole | 2020-11-20 | |
| No filing history on record for this holder in this stock. | ||||||