Position in CSTL
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$1,942,076
-$1,083,099 QoQ
Shares Held
79,107
+1.7% QoQ
Ownership
0.261%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2020
13 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, 2026AMERICAN CENTURY COMPANIES INC holds $1,714,954,358 across 27 Diagnostics & Research names. CSTL ranks #19 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | IDXX |
Idexx Laboratories Inc /De
|
599,931 | $337,095,229 | |
| 2 | DHR |
Danaher Corp /De/
|
1,326,812 | $251,563,555 | |
| 3 | LH |
Labcorp Holdings Inc.
|
810,805 | $216,330,882 | |
| 4 | TMO |
Thermo Fisher Scientific Inc.
|
414,395 | $203,687,574 | |
| 5 | DGX |
Quest Diagnostics Inc
|
867,331 | $169,979,529 | |
| 6 | IQV |
Iqvia Holdings Inc.
|
961,429 | $163,962,101 | |
| 7 | NTRA |
Natera, Inc.
|
496,904 | $99,375,830 | |
| 8 | GH |
Guardant Health, Inc.
|
867,537 | $80,134,392 |
All Filings in CSTL
Export CSV
13 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,942,076 | 79,107 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $3,025,175 | 77,768 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $1,878,798 | 82,512 | Shares | Defined | 2025-11-12 | |
| 2025-06-30 | $1,332,854 | 65,272 | Shares | Defined | 2025-08-12 | |
| 2025-03-31 | $1,482,821 | 74,067 | Shares | Defined | 2025-05-13 | |
| 2024-12-31 | $1,843,513 | 69,175 | Shares | Defined | 2025-02-11 | |
| 2024-09-30 | $1,539,595 | 53,983 | Shares | Defined | 2024-11-12 | |
| 2024-06-30 | $932,147 | 42,818 | Shares | Defined | 2024-08-07 | |
| 2024-03-31 | $839,928 | 37,920 | Shares | Defined | 2024-05-14 | |
| 2023-12-31 | $576,380 | 26,709 | Shares | Defined | 2024-02-13 | |
| 2023-06-30 | $184,259 | 13,430 | Shares | Defined | 2023-08-14 | |
| 2021-03-31 | $247,893 | 3,621 | Shares | Defined | 2021-05-14 | |
| 2020-12-31 | $670,022 | 9,978 | Shares | Defined | 2021-02-12 | |
| No filing history on record for this holder in this stock. | ||||||