Position in BIIB
as of Mar 31, 2026
· filed May 11, 2026
Position Value
$91,757,947
-$9,232,858 QoQ
Shares Held
500,507
-12.8% QoQ
Ownership
0.339%
of shares outstanding
% of Portfolio
0.07%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.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
$3,886,596
CallShares
21,200
PutValue
$0
PutShares
0
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, 2026CITIGROUP INC holds $4,719,307,282 across 18 Drug Manufacturers - General names. BIIB ranks #10 (1.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | LLY |
ELI LILLY & Co
|
1,091,983 | $1,004,373,202 | |
| 2 | AZN |
Astrazeneca PLC
|
3,705,472 | $730,793,186 | |
| 3 | JNJ |
Johnson & Johnson
|
2,832,497 | $692,375,564 | |
| 4 | ABBV |
AbbVie Inc.
|
2,089,885 | $454,529,087 | |
| 5 | PFE |
Pfizer Inc
|
15,493,259 | $435,050,711 | |
| 6 | MRK |
Merck & Co., Inc.
|
2,779,106 | $334,298,659 | |
| 7 | GILD |
Gilead Sciences, Inc.
|
2,300,271 | $320,588,766 | |
| 8 | AMGN |
Amgen Inc
|
828,097 | $291,365,928 |
All Filings in BIIB
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $3,886,596 | 21,200 | Call | Defined | 2026-05-11 | |
| 2026-03-31 | $91,757,947 | 500,507 | Shares | Defined | 2026-05-11 | |
| 2025-12-31 | $13,920,809 | 79,100 | Call | Defined | 2026-02-13 | |
| 2025-12-31 | $100,990,805 | 573,844 | Shares | Defined | 2026-02-13 | |
| 2025-12-31 | $2,569,454 | 14,600 | Put | Defined | 2026-02-13 | |
| 2025-09-30 | $11,080,328 | 79,100 | Call | Defined | 2025-11-10 | |
| 2025-09-30 | $28,338,042 | 202,299 | Shares | Defined | 2025-11-10 | |
| 2025-09-30 | $2,045,168 | 14,600 | Put | Defined | 2025-11-10 | |
| 2025-06-30 | $1,833,614 | 14,600 | Put | Defined | 2025-08-11 | |
| 2025-06-30 | $9,934,169 | 79,100 | Call | Defined | 2025-08-11 | |
| 2025-06-30 | $28,036,709 | 223,240 | Shares | Defined | 2025-08-11 | |
| 2025-03-31 | $4,036,780 | 29,500 | Put | Defined | 2025-05-12 | |
| 2025-03-31 | $41,409,834 | 302,615 | Shares | Defined | 2025-05-12 | |
| 2025-03-31 | $12,862,960 | 94,000 | Call | Defined | 2025-05-12 | |
| 2024-12-31 | $40,422,717 | 264,339 | Shares | Defined | 2025-02-12 | |
| 2024-12-31 | $4,098,256 | 26,800 | Put | Defined | 2025-02-12 | |
| 2024-12-31 | $25,124,756 | 164,300 | Call | Defined | 2025-02-12 | |
| 2024-09-30 | $46,162,606 | 238,148 | Shares | Defined | 2024-11-12 | |
| 2024-09-30 | $930,432 | 4,800 | Put | Defined | 2024-11-12 | |
| 2024-09-30 | $620,288 | 3,200 | Call | Defined | 2024-11-12 | |
| 2024-06-30 | $51,776,301 | 223,347 | Shares | Defined | 2024-08-12 | |
| 2024-06-30 | $4,219,124 | 18,200 | Call | Defined | 2024-08-12 | |
| 2024-06-30 | $4,590,036 | 19,800 | Put | Defined | 2024-08-12 | |
| 2024-03-31 | $47,161,943 | 218,717 | Shares | Defined | 2024-05-10 | |
| 2024-03-31 | $1,035,024 | 4,800 | Put | Defined | 2024-05-10 | |
| 2024-03-31 | $690,016 | 3,200 | Call | Defined | 2024-05-10 | |
| 2023-12-31 | $10,790,709 | 41,700 | Put | Defined | 2024-02-09 | |
| 2023-12-31 | $57,098,373 | 220,653 | Shares | Defined | 2024-02-09 | |
| 2023-12-31 | $12,446,837 | 48,100 | Call | Defined | 2024-02-09 | |
| 2023-09-30 | $17,168,268 | 66,800 | Put | Defined | 2023-12-06 | |
| 2023-09-30 | $20,612,202 | 80,200 | Call | Defined | 2023-12-06 | |
| 2023-09-30 | $56,994,020 | 221,758 | Shares | Defined | 2023-12-06 | |
| 2023-06-30 | $15,609,780 | 54,800 | Put | Defined | 2023-08-10 | |
| 2023-06-30 | $66,911,831 | 234,902 | Shares | Defined | 2023-08-10 | |
| 2023-06-30 | $11,450,970 | 40,200 | Call | Defined | 2023-08-10 | |
| 2023-03-31 | $63,937,444 | 229,966 | Shares | Defined | 2023-05-11 | |
| 2023-03-31 | $9,174,990 | 33,000 | Put | Defined | 2023-05-11 | |
| 2023-03-31 | $18,071,950 | 65,000 | Call | Defined | 2023-05-11 | |
| 2022-12-31 | $54,505,052 | 196,826 | Shares | Defined | 2023-02-09 | |
| 2022-12-31 | $6,230,700 | 22,500 | Put | Defined | 2023-02-09 | |
| 2022-09-30 | $15,352,500 | 57,500 | Put | Defined | 2022-11-10 | |
| 2022-09-30 | $10,680,000 | 40,000 | Call | Defined | 2022-11-10 | |
| 2022-09-30 | $68,141,070 | 255,210 | Shares | Defined | 2022-11-10 | |
| 2022-06-30 | $37,998,709 | 186,323 | Shares | Defined | 2022-08-10 | |
| 2022-06-30 | $5,098,500 | 25,000 | Call | Defined | 2022-08-10 | |
| 2022-03-31 | $43,336,845 | 205,778 | Shares | Defined | 2022-05-12 | |
| 2021-12-31 | $14,635,120 | 61,000 | Call | Defined | 2022-02-10 | |
| 2021-12-31 | $91,825,538 | 382,734 | Shares | Defined | 2022-02-10 | |
| 2021-09-30 | $17,262,390 | 61,000 | Call | Defined | 2021-11-10 | |
| 2021-09-30 | $76,597,749 | 270,673 | Shares | Defined | 2021-11-10 | |
| No filing history on record for this holder in this stock. | ||||||