Position in CSTL
as of Mar 31, 2026
· filed May 12, 2026
Position Value
$644,363
-$206,924 QoQ
Shares Held
26,247
+19.9% QoQ
Ownership
0.087%
of shares outstanding
% of Portfolio
0.11%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2023
5 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, 2026FOX RUN MANAGEMENT, L.L.C. holds $3,401,538 across 5 Diagnostics & Research names. CSTL ranks #3 (18.9% of the industry book) .
All Filings in CSTL
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5 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $644,363 | 26,247 | Shares | Sole | 2026-05-12 | |
| 2025-12-31 | $851,287 | 21,884 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $314,681 | 13,820 | Shares | Sole | 2025-11-12 | |
| 2024-12-31 | $285,581 | 10,716 | Shares | Sole | 2025-02-11 | |
| 2023-12-31 | $262,197 | 12,150 | Shares | Sole | 2024-02-13 | |
| No filing history on record for this holder in this stock. | ||||||