Position in PTGX
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$6,198,870
New position
Shares Held
50,570
first reported quarter
Ownership
0.078%
of shares outstanding
% of Portfolio
0.19%
of 13F equity value
Holder Rank
#92
of 341 holders
Holding Since
Jun 2026
1 quarter on record
Voting authority
Sole 100%
Shared 0%
None 0%
Position in Biotechnology
Healthcare · as of Jun 30, 2026CASTLEARK MANAGEMENT LLC holds $107,512,673 across 17 Biotechnology names. PTGX ranks #6 (5.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | LGND |
Ligand Pharmaceuticals Inc
|
62,043 | $19,611,171 | |
| 2 | ASND |
Ascendis Pharma A/S
|
61,696 | $16,455,557 | |
| 3 | JAZZ |
Jazz Pharmaceuticals plc
|
46,920 | $11,306,312 | |
| 4 | TGTX |
Tg Therapeutics, Inc.
|
150,990 | $8,295,390 | |
| 5 | PRAX |
Praxis Precision Medicines, Inc.
|
24,390 | $8,165,528 | |
| 6 | PTGX |
Protagonist Therapeutics, Inc
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|
50,570 | $6,198,870 | |
| 7 | KRYS |
Krystal Biotech, Inc.
|
16,150 | $6,002,470 | |
| 8 | BBIO |
BridgeBio Pharma, Inc.
|
78,497 | $5,846,456 |
All Filings in PTGX
Export CSV
1 filing row on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $6,198,870 | 50,570 | Shares | Sole | 2026-08-14 | |
| No filing history on record for this holder in this stock. | ||||||