Position in CSTL
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$1,680,900
+$827,101 QoQ
Shares Held
70,478
+102.7% QoQ
Ownership
0.231%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#55
of 176 holders
Holding Since
Sep 2022
16 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 Jun 30, 2026ALGERT GLOBAL LLC holds $46,696,868 across 9 Diagnostics & Research names. CSTL ranks #6 (3.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MEDP |
Medpace Holdings, Inc.
|
34,477 | $18,258,674 | |
| 2 | GH |
Guardant Health, Inc.
|
64,000 | $9,601,920 | |
| 3 | SHC |
Sotera Health Co
|
361,280 | $6,412,720 | |
| 4 | IDXX |
Idexx Laboratories Inc /De
|
10,737 | $5,652,386 | |
| 5 | CRL |
Charles River Laboratories International, Inc.
|
13,180 | $2,989,092 | |
| 6 | CSTL |
Castle Biosciences Inc
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|
70,478 | $1,680,900 | |
| 7 | WGS |
GeneDx Holdings Corp.
|
21,932 | $1,505,631 | |
| 8 | OPK |
Opko Health, Inc.
|
397,030 | $595,545 |
All Filings in CSTL
Export CSV
16 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,680,900 | 70,478 | Shares | Sole | 2026-08-13 | |
| 2026-03-31 | $853,799 | 34,778 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $738,244 | 18,978 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $1,318,269 | 57,895 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $3,781,396 | 185,181 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $2,889,106 | 144,311 | Shares | Sole | 2025-05-13 | |
| 2024-12-31 | $3,983,935 | 149,491 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $3,830,834 | 134,321 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $2,911,127 | 133,722 | Shares | Sole | 2024-08-15 | |
| 2024-03-31 | $3,220,765 | 145,407 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $2,786,193 | 129,110 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $1,135,210 | 67,212 | Shares | Sole | 2023-11-13 | |
| 2023-06-30 | $1,222,067 | 89,072 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $1,576,359 | 69,382 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $1,620,776 | 68,852 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $1,302,226 | 49,932 | Shares | Sole | 2022-11-15 | |
| No filing history on record for this holder in this stock. | ||||||