Position in BIIB
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$42,143,716
-$25,775,751 QoQ
Shares Held
229,879
-40.4% QoQ
Ownership
0.156%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
21 quarters on record
Voting authority
Sole 0.ToString("F0")%
Shared 100.ToString("F0")%
None 0.ToString("F0")%
Common Shares in BIIB Over Time
Shares Held
Position Value (USD)
Derivatives in BIIB
reported options exposure · as of Mar 31, 2026CallValue
$1,173,312
CallShares
6,400
PutValue
$366,660
PutShares
2,000
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Drug Manufacturers - General
Healthcare · as of Mar 31, 2026MARSHALL WACE, LLP holds $2,860,542,672 across 13 Drug Manufacturers - General names. BIIB ranks #11 (1.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | JNJ |
Johnson & Johnson
|
2,377,822 | $581,234,808 | |
| 2 | LLY |
ELI LILLY & Co
|
576,174 | $529,947,557 | |
| 3 | PFE |
Pfizer Inc
|
16,082,788 | $451,604,686 | |
| 4 | MRK |
Merck & Co., Inc.
|
2,778,301 | $334,201,827 | |
| 5 | GILD |
Gilead Sciences, Inc.
|
2,310,515 | $322,016,474 | |
| 6 | BMY |
Bristol Myers Squibb Co
|
3,689,838 | $223,788,674 | |
| 7 | NVO |
Novo Nordisk A S
|
3,046,611 | $111,962,952 | |
| 8 | AMGN |
Amgen Inc
|
316,917 | $111,507,246 |
All Filings in BIIB
Export CSV
27 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $42,143,716 | 229,879 | Shares | Other | 2026-05-15 | |
| 2026-03-31 | $1,173,312 | 6,400 | Call | Other | 2026-05-15 | |
| 2026-03-31 | $366,660 | 2,000 | Put | Other | 2026-05-15 | |
| 2025-12-31 | $35,198 | 200 | Call | Other | 2026-02-13 | |
| 2025-12-31 | $67,919,467 | 385,928 | Shares | Other | 2026-02-13 | |
| 2025-12-31 | $140,792 | 800 | Put | Other | 2026-02-13 | |
| 2025-09-30 | $308,176 | 2,200 | Call | Other | 2025-11-13 | |
| 2025-09-30 | $124,343,552 | 887,661 | Shares | Other | 2025-11-13 | |
| 2025-09-30 | $28,016 | 200 | Put | Other | 2025-11-13 | |
| 2025-06-30 | $20,842,288 | 165,955 | Shares | Other | 2025-08-13 | |
| 2025-03-31 | $807,356 | 5,900 | Shares | Other | 2025-05-15 | |
| 2024-12-31 | $12,226,258 | 79,952 | Shares | Other | 2025-02-13 | |
| 2024-09-30 | $12,851,592 | 66,300 | Shares | Other | 2024-11-14 | |
| 2024-03-31 | $5,008,653 | 23,228 | Shares | Other | 2024-05-15 | |
| 2023-06-30 | $1,439,916 | 5,055 | Shares | Other | 2023-08-14 | |
| 2023-03-31 | $148,171,361 | 532,933 | Shares | Other | 2023-05-15 | |
| 2022-12-31 | $344,530,017 | 1,244,150 | Shares | Other | 2023-02-14 | |
| 2022-09-30 | $40,203,258 | 150,574 | Shares | Other | 2022-11-14 | |
| 2022-06-30 | $17,071,409 | 83,708 | Shares | Other | 2022-08-15 | |
| 2022-03-31 | $24,905,344 | 118,259 | Shares | Other | 2022-05-16 | |
| 2021-12-31 | $6,586,763 | 27,454 | Shares | Other | 2022-02-14 | |
| 2021-09-30 | $3,232,311 | 11,422 | Shares | Sole | 2021-11-15 | |
| 2021-03-31 | $45,475,041 | 162,556 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $127,291,205 | 519,853 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $33,072,832 | 116,585 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $12,672,505 | 47,365 | Shares | Sole | 2020-08-13 | |
| 2020-03-31 | $20,359,685 | 64,352 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||