Position in CSTL
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$13,737,762
+$4,576,112 QoQ
Shares Held
559,583
+137.6% QoQ
Ownership
1.84%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2020
14 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in CSTL Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026Qube Research & Technologies Ltd holds $917,985,122 across 18 Diagnostics & Research names. CSTL ranks #7 (1.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | A |
Agilent Technologies, Inc.
|
2,280,319 | $259,910,759 | |
| 2 | DHR |
Danaher Corp /De/
|
1,348,956 | $255,762,057 | |
| 3 | DGX |
Quest Diagnostics Inc
|
734,714 | $143,989,249 | |
| 4 | TMO |
Thermo Fisher Scientific Inc.
|
188,774 | $92,788,084 | |
| 5 | NTRA |
Natera, Inc.
|
306,300 | $61,256,937 | |
| 6 | IDXX |
Idexx Laboratories Inc /De
|
85,650 | $48,125,878 | |
| 7 | CSTL |
Castle Biosciences Inc
This page
|
559,583 | $13,737,762 | |
| 8 | QGEN |
Qiagen N.V.
|
313,960 | $12,570,958 |
All Filings in CSTL
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14 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $13,737,762 | 559,583 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $9,161,650 | 235,518 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $5,031,281 | 220,961 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $3,931,932 | 192,553 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $5,592,867 | 279,364 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $5,797,547 | 217,544 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $1,649,739 | 57,845 | Shares | Sole | 2024-11-14 | |
| 2023-06-30 | $174,230 | 12,699 | Shares | Sole | 2023-08-14 | |
| 2022-06-30 | $412,484 | 18,792 | Shares | Sole | 2022-08-15 | |
| 2021-12-31 | $549,336 | 12,814 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $433,247 | 6,515 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $664,883 | 9,067 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $571,572 | 8,349 | Shares | Sole | 2021-05-14 | |
| 2020-12-31 | $535,722 | 7,978 | Shares | Sole | 2021-02-16 | |
| No filing history on record for this holder in this stock. | ||||||