Position in BIIB
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$1,474,393
+$466,078 QoQ
Shares Held
6,824
+24.1% QoQ
Ownership
0.005%
of shares outstanding
% of Portfolio
0.27%
of 13F equity value
Holder Rank
#392
of 1,031 holders
Holding Since
Dec 2024
7 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in BIIB Over Time
Shares Held
Position Value (USD)
Derivatives in BIIB
reported options exposure · as of Dec 31, 2025CallValue
$0
CallShares
0
PutValue
$1,531,113
PutShares
8,700
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 Jun 30, 2026SIG BROKERAGE, LP holds $21,389,610 across 9 Drug Manufacturers - General names. BIIB ranks #4 (6.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MRK |
Merck & Co., Inc.
|
67,374 | $8,657,559 | |
| 2 | GILD |
Gilead Sciences, Inc.
|
52,809 | $6,671,889 | |
| 3 | LLY |
ELI LILLY & Co
|
1,487 | $1,783,552 | |
| 4 | BIIB |
Biogen Inc.
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|
6,824 | $1,474,393 | |
| 5 | PFE |
Pfizer Inc
|
52,022 | $1,252,689 | |
| 6 | JNJ |
Johnson & Johnson
|
2,095 | $532,067 | |
| 7 | BMY |
Bristol Myers Squibb Co
|
8,817 | $508,035 | |
| 8 | AMGN |
Amgen Inc
|
768 | $278,108 |
All Filings in BIIB
Export CSV
9 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,474,393 | 6,824 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $1,008,315 | 5,500 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $1,531,113 | 8,700 | Put | Sole | 2026-02-17 | |
| 2025-12-31 | $1,922,162 | 10,922 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $669,722 | 4,781 | Shares | Sole | 2025-11-14 | |
| 2025-09-30 | $700,400 | 5,000 | Call | Sole | 2025-11-14 | |
| 2025-06-30 | $424,368 | 3,379 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $578,149 | 4,225 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $674,530 | 4,411 | Shares | Sole | 2025-02-14 | |
| No filing history on record for this holder in this stock. | ||||||