Balyasny Asset Management L.P.
Position in KPTI — Karyopharm Therapeutics Inc.
CIK 1218710
Chicago, IL
Position in KPTI
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$394,066
New position
Shares Held
70,748
first reported quarter
Ownership
0.312%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2026
1 quarter on record
Voting authority
Sole 100%
Shared 0%
None 0%
Derivatives in KPTI
reported options exposure · as of Mar 31, 2026CallValue
$557,000
CallShares
100,000
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 Biotechnology
Healthcare · as of Mar 31, 2026Balyasny Asset Management L.P. holds $2,162,876,033 across 177 Biotechnology names. KPTI ranks #155 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TERN |
Terns Pharmaceuticals, Inc.
|
2,779,445 | $146,532,340 | |
| 2 | ERAS |
Erasca, Inc.
|
5,143,985 | $83,229,677 | |
| 3 | TNGX |
Tango Therapeutics, Inc.
|
3,826,659 | $80,053,706 | |
| 4 | APLS |
Apellis Pharmaceuticals, Inc.
|
1,917,501 | $77,141,065 | |
| 5 | BMRN |
Biomarin Pharmaceutical Inc
|
1,362,752 | $76,981,860 | |
| 6 | CYTK |
Cytokinetics Inc
|
992,545 | $65,418,640 | |
| 7 | DAWN |
Day One Biopharmaceuticals, Inc.
|
2,625,235 | $56,285,038 | |
| 8 | FOLD |
AMICUS THERAPEUTICS, INC.
|
3,827,513 | $55,345,837 |
All Filings in KPTI
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $557,000 | 100,000 | Call | Sole | 2026-05-15 | |
| 2026-03-31 | $394,066 | 70,748 | Shares | Sole | 2026-05-15 | |
| No filing history on record for this holder in this stock. | ||||||