Position in BIIB
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$878,700
+$41,162 QoQ
Shares Held
4,793
-19.8% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
7 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 Jun 30, 2021CallValue
$45,880,775
CallShares
132,500
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, 2026Holocene Advisors, LP holds $1,499,965,087 across 7 Drug Manufacturers - General names. BIIB ranks #7 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AZN |
Astrazeneca PLC
|
2,662,887 | $525,174,574 | |
| 2 | GILD |
Gilead Sciences, Inc.
|
2,611,826 | $364,010,189 | |
| 3 | GSK |
GSK plc
|
5,518,433 | $304,562,317 | |
| 4 | LLY |
ELI LILLY & Co
|
187,359 | $172,327,187 | |
| 5 | MRK |
Merck & Co., Inc.
|
572,467 | $68,862,055 | |
| 6 | NVO |
Novo Nordisk A S
|
1,745,580 | $64,150,065 | |
| 7 | BIIB |
Biogen Inc.
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|
4,793 | $878,700 |
All Filings in BIIB
Export CSV
8 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $878,700 | 4,793 | Shares | Sole | 2026-05-15 | |
| 2025-09-30 | $837,538 | 5,979 | Shares | Sole | 2025-11-14 | |
| 2023-06-30 | $1,079,866 | 3,791 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $53,967,013 | 194,105 | Shares | Sole | 2023-05-15 | |
| 2021-06-30 | $45,880,775 | 132,500 | Call | Sole | 2021-08-16 | |
| 2021-06-30 | $474,389 | 1,370 | Shares | Sole | 2021-08-16 | |
| 2020-06-30 | $92,304,750 | 345,000 | Put | Sole | 2020-08-14 | |
| 2020-03-31 | $71,966,642 | 227,469 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||