Position in CSTL
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$3,096,982
-$2,759,724 QoQ
Shares Held
126,150
-16.2% QoQ
Ownership
0.416%
of shares outstanding
% of Portfolio
0.32%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2020
15 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, 2026Parkman Healthcare Partners LLC holds $81,306,539 across 10 Diagnostics & Research names. CSTL ranks #9 (3.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | QGEN |
Qiagen N.V.
|
500,000 | $20,020,000 | |
| 2 | IQV |
Iqvia Holdings Inc.
|
86,702 | $14,786,159 | |
| 3 | ILMN |
Illumina, Inc.
|
110,370 | $13,604,206 | |
| 4 | IDXX |
Idexx Laboratories Inc /De
|
15,000 | $8,428,350 | |
| 5 | WAT |
Waters Corp /De/
|
26,447 | $7,875,916 | |
| 6 | CDNA |
CareDx, Inc.
|
291,378 | $5,058,322 | |
| 7 | WGS |
GeneDx Holdings Corp.
|
50,778 | $3,260,963 | |
| 8 | VCYT |
Veracyte, Inc.
|
101,237 | $3,260,843 |
All Filings in CSTL
Export CSV
15 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $3,096,982 | 126,150 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $5,856,706 | 150,558 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $10,828,683 | 475,568 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $7,193,190 | 352,262 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $7,018,031 | 350,551 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $8,118,362 | 304,629 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $8,443,944 | 296,071 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $6,049,774 | 277,895 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $8,138,087 | 367,408 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $7,707,426 | 357,156 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $3,793,358 | 224,592 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $2,030,587 | 148,002 | Shares | Sole | 2023-08-11 | |
| 2020-12-31 | $1,533,101 | 22,831 | Shares | Sole | 2021-02-12 | |
| 2020-09-30 | $1,543,654 | 30,003 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $942,250 | 25,000 | Shares | Sole | 2020-08-13 | |
| No filing history on record for this holder in this stock. | ||||||