Position in BIIB
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$59,669,938
+$37,847,178 QoQ
Shares Held
276,173
+122.7% QoQ
Ownership
0.187%
of shares outstanding
% of Portfolio
0.96%
of 13F equity value
Holder Rank
#63
of 1,036 holders
Holding Since
Sep 2020
6 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 Mar 31, 2021CallValue
$209,253,000
CallShares
748,000
PutValue
$167,850,000
PutShares
600,000
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 Jun 30, 2026PERCEPTIVE ADVISORS LLC holds $59,669,938 across 1 Drug Manufacturers - General name. BIIB ranks #1 (100.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BIIB |
Biogen Inc.
This page
|
276,173 | $59,669,938 |
All Filings in BIIB
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7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $59,669,938 | 276,173 | Shares | Sole | 2026-08-14 | |
| 2025-12-31 | $21,822,760 | 124,000 | Shares | Sole | 2026-02-17 | |
| 2021-12-31 | $11,660,112 | 48,600 | Shares | Sole | 2022-04-13 | |
| 2021-09-30 | $13,753,314 | 48,600 | Shares | Sole | 2021-12-03 | |
| 2021-03-31 | $209,253,000 | 748,000 | Call | Sole | 2021-08-13 | |
| 2021-03-31 | $167,850,000 | 600,000 | Put | Sole | 2021-08-13 | |
| 2020-09-30 | $28,368,000 | 100,000 | Call | Sole | 2020-11-16 | |
| No filing history on record for this holder in this stock. | ||||||