Position in CSTL
as of Mar 31, 2026
· filed May 7, 2026
Position Value
$25,526,130
-$18,967,650 QoQ
Shares Held
1,039,761
-9.1% QoQ
Ownership
3.43%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2020
21 quarters on record
Voting authority
Sole 94%
Shared 4%
None 3%
Common Shares in CSTL Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026DIMENSIONAL FUND ADVISORS LP holds $4,736,122,501 across 33 Diagnostics & Research names. CSTL ranks #21 (0.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
1,689,790 | $830,582,476 | |
| 2 | DHR |
Danaher Corp /De/
|
2,645,911 | $501,664,724 | |
| 3 | DGX |
Quest Diagnostics Inc
|
1,949,535 | $382,069,866 | |
| 4 | LH |
Labcorp Holdings Inc.
|
1,332,775 | $355,597,695 | |
| 5 | IDXX |
Idexx Laboratories Inc /De
|
573,332 | $322,149,515 | |
| 6 | CRL |
Charles River Laboratories International, Inc.
|
1,652,484 | $285,053,489 | |
| 7 | IQV |
Iqvia Holdings Inc.
|
1,657,696 | $282,703,474 | |
| 8 | RVTY |
Revvity, Inc.
|
2,917,953 | $255,641,860 |
All Filings in CSTL
Export CSV
21 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $25,526,130 | 1,039,761 | Shares | Sole | 2026-05-07 | |
| 2025-12-31 | $44,493,780 | 1,143,799 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $33,565,005 | 1,474,089 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $28,138,860 | 1,378,005 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $24,028,442 | 1,200,222 | Shares | Sole | 2025-05-13 | |
| 2024-12-31 | $26,635,766 | 999,466 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $24,664,693 | 864,821 | Shares | Sole | 2024-11-07 | |
| 2024-06-30 | $17,632,261 | 809,934 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $16,596,085 | 749,259 | Shares | Sole | 2024-05-10 | |
| 2023-12-31 | $14,326,572 | 663,882 | Shares | Sole | 2024-02-07 | |
| 2023-09-30 | $9,380,720 | 555,401 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $6,717,077 | 489,583 | Shares | Sole | 2023-08-09 | |
| 2023-03-31 | $10,988,570 | 483,652 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $7,619,565 | 323,686 | Shares | Sole | 2023-02-09 | |
| 2022-09-30 | $6,219,765 | 238,488 | Shares | Sole | 2022-11-10 | |
| 2022-06-30 | $4,216,109 | 192,078 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $5,489,877 | 122,378 | Shares | Defined | 2022-05-13 | |
| 2021-12-31 | $4,891,467 | 114,100 | Shares | Defined | 2022-02-09 | |
| 2021-09-30 | $3,612,080 | 54,317 | Shares | Defined | 2021-11-12 | |
| 2021-03-31 | $9,788,958 | 142,988 | Shares | Defined | 2021-05-14 | |
| 2020-12-31 | $1,388,796 | 20,682 | Shares | Defined | 2021-03-08 | |
| No filing history on record for this holder in this stock. | ||||||