Position in CSTL
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$6,109,022
+$2,838,855 QoQ
Shares Held
248,840
+196.0% QoQ
Ownership
0.820%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2020
22 quarters on record
Voting authority
Sole 99%
Shared 0%
None 1%
Common Shares in CSTL Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026TWO SIGMA INVESTMENTS, LP holds $1,107,116,506 across 33 Diagnostics & Research names. CSTL ranks #10 (0.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | GH |
Guardant Health, Inc.
|
4,229,531 | $390,681,778 | |
| 2 | DHR |
Danaher Corp /De/
|
1,858,782 | $352,425,067 | |
| 3 | TMO |
Thermo Fisher Scientific Inc.
|
187,893 | $92,355,046 | |
| 4 | MEDP |
Medpace Holdings, Inc.
|
176,557 | $84,780,905 | |
| 5 | A |
Agilent Technologies, Inc.
|
677,347 | $77,204,011 | |
| 6 | IQV |
Iqvia Holdings Inc.
|
219,984 | $37,516,071 | |
| 7 | ILMN |
Illumina, Inc.
|
73,717 | $9,086,357 | |
| 8 | NTRA |
Natera, Inc.
|
40,200 | $8,039,598 |
All Filings in CSTL
Export CSV
22 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $6,109,022 | 248,840 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $3,270,167 | 84,066 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $585,189 | 25,700 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $576,681 | 28,241 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $2,798,495 | 139,785 | Shares | Sole | 2025-05-15 | |
| 2024-09-30 | $279,496 | 9,800 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $365,736 | 16,800 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $369,905 | 16,700 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $373,334 | 17,300 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $216,192 | 12,800 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $437,668 | 31,900 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $514,017 | 22,624 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $1,269,865 | 53,945 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $3,169,971 | 121,548 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $3,279,966 | 149,429 | Shares | Sole | 2022-08-15 | |
| 2021-12-31 | $5,803,183 | 135,367 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $4,852,239 | 72,966 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $3,148,643 | 42,938 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $6,313,655 | 92,224 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $4,688,077 | 69,815 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $216,090 | 4,200 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $1,132,659 | 30,052 | Shares | Sole | 2020-08-14 | |
| No filing history on record for this holder in this stock. | ||||||