Position in ALT
as of Mar 31, 2026
· filed May 8, 2026
Position Value
$338,800
-$230,858 QoQ
Shares Held
110,000
-30.3% QoQ
Ownership
0.057%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2023
9 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in ALT Over Time
Shares Held
Position Value (USD)
Derivatives in ALT
reported options exposure · as of Dec 31, 2025CallValue
$0
CallShares
0
PutValue
$180,500
PutShares
50,000
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 Biotechnology
Healthcare · as of Mar 31, 2026Jefferies Financial Group Inc. holds $507,365,833 across 84 Biotechnology names. ALT ranks #58 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PTCT |
Ptc Therapeutics, Inc.
|
1,354,459 | $92,279,291 | |
| 2 | IMTX |
Immatics N.V.
|
5,059,551 | $49,785,981 | |
| 3 | URGN |
UroGen Pharma Ltd.
|
2,199,652 | $39,549,742 | |
| 4 | JAZZ |
Jazz Pharmaceuticals plc
|
175,599 | $33,196,990 | |
| 5 | BMRN |
Biomarin Pharmaceutical Inc
|
468,146 | $26,445,567 | |
| 6 | IMNM |
Immunome Inc.
|
1,160,715 | $25,384,837 | |
| 7 | ARGX |
Argenx SE
|
30,005 | $21,911,151 | |
| 8 | DNTH |
Dianthus Therapeutics, Inc. /DE/
|
202,410 | $16,986,247 |
All Filings in ALT
Export CSV
12 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $338,800 | 110,000 | Shares | Defined | 2026-05-08 | |
| 2025-12-31 | $180,500 | 50,000 | Put | Defined | 2026-02-09 | |
| 2025-12-31 | $569,658 | 157,800 | Shares | Defined | 2026-02-09 | |
| 2025-09-30 | $188,500 | 50,000 | Put | Defined | 2025-11-13 | |
| 2025-09-30 | $188,500 | 50,000 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $135,450 | 35,000 | Shares | Defined | 2025-08-12 | |
| 2025-03-31 | $125,000 | 25,000 | Shares | Defined | 2025-05-08 | |
| 2024-12-31 | $180,250 | 25,000 | Put | Defined | 2025-02-27 | |
| 2024-12-31 | $180,250 | 25,000 | Shares | Defined | 2025-02-27 | |
| 2024-09-30 | $122,800 | 20,000 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $133,000 | 20,000 | Shares | Defined | 2024-08-13 | |
| 2023-12-31 | $2,430,000 | 216,000 | Shares | Defined | 2024-05-06 | |
| No filing history on record for this holder in this stock. | ||||||