SG Americas Securities, LLC
Broker-DealerPosition in CSTL — Castle Biosciences Inc
CIK 1313360
NEW YORK, NY
Position in CSTL
as of Mar 31, 2026
· filed Apr 16, 2026
Position Value
$6,011,951
+$5,184,860 QoQ
Shares Held
244,886
+1051.8% QoQ
Ownership
0.802%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
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, 2026SG Americas Securities, LLC holds $951,023,363 across 26 Diagnostics & Research names.
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
937,270 | $469,909,687 | |
| 2 | DHR |
Danaher Corp /De/
|
824,349 | $157,021,997 | |
| 3 | MTD |
Mettler Toledo International Inc/
|
67,835 | $86,659,890 | |
| 4 | IDXX |
Idexx Laboratories Inc /De
|
87,840 | $46,242,489 | |
| 5 | NTRA |
Natera, Inc.
|
144,611 | $39,254,655 | |
| 6 | DGX |
Quest Diagnostics Inc
|
162,837 | $34,513,302 | |
| 7 | WAT |
Waters Corp /De/
|
77,446 | $29,045,347 | |
| 8 | IQV |
Iqvia Holdings Inc.
|
93,758 | $18,115,920 |
All Filings in CSTL
Export CSV
16 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $6,011,951 | 244,886 | Shares | Sole | 2026-04-16 | |
| 2025-12-31 | $827,091 | 21,262 | Shares | Sole | 2026-01-09 | |
| 2025-09-30 | $297,398 | 13,061 | Shares | Sole | 2025-10-23 | |
| 2024-09-30 | $218,434 | 7,659 | Shares | Sole | 2024-10-03 | |
| 2024-06-30 | $587,550 | 26,989 | Shares | Sole | 2024-07-12 | |
| 2022-09-30 | $108,440 | 4,158 | Shares | Sole | 2022-10-31 | |
| 2022-06-30 | $864,347 | 39,378 | Shares | Sole | 2022-07-29 | |
| 2022-03-31 | $209,630 | 4,673 | Shares | Sole | 2022-04-29 | |
| 2021-12-31 | $352,691 | 8,227 | Shares | Sole | 2022-02-07 | |
| 2021-09-30 | $774,459 | 11,646 | Shares | Sole | 2021-11-01 | |
| 2021-06-30 | $185,671 | 2,532 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $4,441,410 | 64,876 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $4,081,175 | 60,777 | Shares | Sole | 2021-02-04 | |
| 2020-09-30 | $2,247,233 | 43,678 | Shares | Sole | 2020-11-09 | |
| 2020-06-30 | $773,248 | 20,516 | Shares | Sole | 2020-07-20 | |
| 2020-03-31 | $112,294 | 3,767 | Shares | Sole | 2020-04-30 | |
| No filing history on record for this holder in this stock. | ||||||