Position in CSTL
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$11,893,026
-$3,293,767 QoQ
Shares Held
484,441
+24.1% QoQ
Ownership
1.60%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 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, 2026ACADIAN ASSET MANAGEMENT LLC holds $144,517,551 across 23 Diagnostics & Research names. CSTL ranks #5 (8.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | DGX |
Quest Diagnostics Inc
|
239,432 | $46,923,883 | |
| 2 | MTD |
Mettler Toledo International Inc/
|
22,818 | $28,778,061 | |
| 3 | FLGT |
Fulgent Genetics, Inc.
|
1,233,951 | $19,619,820 | |
| 4 | IDXX |
Idexx Laboratories Inc /De
|
33,998 | $19,103,136 | |
| 5 | CSTL |
Castle Biosciences Inc
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|
484,441 | $11,893,026 | |
| 6 | MYGN |
Myriad Genetics Inc
|
2,308,589 | $10,388,650 | |
| 7 | XGN |
Exagen Inc.
|
689,114 | $2,067,342 | |
| 8 | GH |
Guardant Health, Inc.
|
13,827 | $1,277,199 |
All Filings in CSTL
Export CSV
14 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $11,893,026 | 484,441 | Shares | Defined | 2026-05-13 | |
| 2025-12-31 | $15,186,793 | 390,406 | Shares | Defined | 2026-02-10 | |
| 2025-09-30 | $10,284,116 | 451,652 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $11,113,585 | 544,250 | Shares | Defined | 2025-08-07 | |
| 2025-03-31 | $13,534,841 | 676,066 | Shares | Defined | 2025-05-21 | |
| 2024-12-31 | $10,890,522 | 408,650 | Shares | Defined | 2025-02-11 | |
| 2024-09-30 | $11,443,307 | 401,238 | Shares | Defined | 2024-11-12 | |
| 2024-06-30 | $6,106,419 | 280,497 | Shares | Defined | 2024-08-06 | |
| 2024-03-31 | $4,669,751 | 210,824 | Shares | Defined | 2024-05-10 | |
| 2023-12-31 | $1,972,001 | 91,381 | Shares | Defined | 2024-02-13 | |
| 2020-12-31 | $356,902 | 5,315 | Shares | Defined | 2021-02-11 | |
| 2020-09-30 | $3,435,470 | 66,773 | Shares | Defined | 2020-11-09 | |
| 2020-06-30 | $1,464,708 | 38,862 | Shares | Defined | 2020-08-12 | |
| 2020-03-31 | $255,322 | 8,565 | Shares | Defined | 2020-05-11 | |
| No filing history on record for this holder in this stock. | ||||||