Position in VRTX
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$362,612
+$36,638 QoQ
Shares Held
730
0.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#1,173
of 1,735 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in VRTX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026CASTLEARK MANAGEMENT LLC holds $107,512,673 across 17 Biotechnology names. VRTX ranks #17 (0.3% 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
|
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 VRTX
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $362,612 | 730 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $325,974 | 730 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $330,952 | 730 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $285,897 | 730 | Shares | Sole | 2025-11-17 | |
| 2025-06-30 | $324,996 | 730 | Shares | Sole | 2025-08-18 | |
| 2025-03-31 | $22,805,447 | 47,039 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $18,719,509 | 46,485 | Shares | Sole | 2025-02-18 | |
| 2024-09-30 | $38,473,743 | 82,725 | Shares | Sole | 2024-11-15 | |
| 2024-06-30 | $21,937,502 | 46,803 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $305,147 | 730 | Shares | Sole | 2024-05-16 | |
| 2023-12-31 | $297,029 | 730 | Shares | Sole | 2024-02-15 | |
| 2023-09-30 | $253,850 | 730 | Shares | Sole | 2023-11-15 | |
| 2023-06-30 | $256,894 | 730 | Shares | Sole | 2023-08-16 | |
| 2023-03-31 | $230,001 | 730 | Shares | Sole | 2023-05-16 | |
| 2022-12-31 | $210,809 | 730 | Shares | Sole | 2023-02-10 | |
| 2022-09-30 | $211,364 | 730 | Shares | Sole | 2022-11-15 | |
| 2022-06-30 | $205,706 | 730 | Shares | Sole | 2022-08-16 | |
| 2022-03-31 | $190,508 | 730 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $160,308 | 730 | Shares | Sole | 2022-02-16 | |
| 2021-09-30 | $132,414 | 730 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $147,189 | 730 | Shares | Sole | 2021-08-17 | |
| 2021-03-31 | $156,869 | 730 | Shares | Sole | 2021-05-14 | |
| 2020-12-31 | $172,528 | 730 | Shares | Sole | 2021-02-17 | |
| 2020-09-30 | $253,071 | 930 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $269,988 | 930 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $24,999,027 | 105,060 | Shares | Sole | 2020-05-13 | |
| No filing history on record for this holder in this stock. | ||||||