Position in WAT
as of Jun 30, 2026
· filed Jul 23, 2026
Position Value
$10,867,909
+$2,230,816 QoQ
Shares Held
28,978
-0.1% QoQ
Ownership
0.029%
of shares outstanding
% of Portfolio
1.27%
of 13F equity value
Holder Rank
#190
of 1,173 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in WAT Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Jun 30, 2026PARTHENON LLC holds $24,530,721 across 2 Diagnostics & Research names. WAT ranks #2 (44.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ICLR |
Icon PLC
|
78,653 | $13,662,812 | |
| 2 | WAT |
Waters Corp /De/
This page
|
28,978 | $10,867,909 |
All Filings in WAT
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $10,867,909 | 28,978 | Shares | Sole | 2026-07-23 | |
| 2026-03-31 | $8,637,093 | 29,003 | Shares | Sole | 2026-04-28 | |
| 2025-12-31 | $11,052,293 | 29,098 | Shares | Sole | 2026-01-23 | |
| 2025-09-30 | $9,072,550 | 30,261 | Shares | Sole | 2025-10-31 | |
| 2025-06-30 | $11,075,388 | 31,731 | Shares | Sole | 2025-07-29 | |
| 2025-03-31 | $12,010,222 | 32,586 | Shares | Sole | 2025-05-02 | |
| 2024-12-31 | $12,198,193 | 32,881 | Shares | Sole | 2025-02-03 | |
| 2024-09-30 | $11,581,620 | 32,181 | Shares | Sole | 2024-11-05 | |
| 2024-06-30 | $9,358,110 | 32,256 | Shares | Sole | 2024-08-08 | |
| 2024-03-31 | $11,306,578 | 32,846 | Shares | Sole | 2024-04-30 | |
| 2023-12-31 | $10,978,503 | 33,346 | Shares | Sole | 2024-02-05 | |
| 2023-09-30 | $9,184,938 | 33,496 | Shares | Sole | 2023-10-30 | |
| 2023-06-30 | $9,013,316 | 33,816 | Shares | Sole | 2023-07-27 | |
| 2023-03-31 | $10,470,448 | 33,816 | Shares | Sole | 2023-05-08 | |
| 2022-12-31 | $11,636,072 | 33,966 | Shares | Sole | 2023-02-08 | |
| 2022-09-30 | $9,222,238 | 34,216 | Shares | Sole | 2022-11-01 | |
| 2022-06-30 | $11,324,811 | 34,216 | Shares | Sole | 2022-07-29 | |
| 2022-03-31 | $10,794,743 | 34,778 | Shares | Sole | 2022-05-09 | |
| 2021-12-31 | $12,965,734 | 34,798 | Shares | Sole | 2022-02-07 | |
| 2021-09-30 | $13,744,616 | 38,468 | Shares | Sole | 2021-10-28 | |
| 2021-06-30 | $15,367,894 | 44,466 | Shares | Sole | 2021-07-28 | |
| 2021-03-31 | $12,640,165 | 44,481 | Shares | Sole | 2021-04-23 | |
| 2020-12-31 | $10,897,861 | 44,046 | Shares | Sole | 2021-02-03 | |
| 2020-09-30 | $8,762,159 | 44,778 | Shares | Sole | 2020-10-29 | |
| 2020-06-30 | $8,123,953 | 45,033 | Shares | Sole | 2020-07-24 | |
| 2020-03-31 | $8,199,167 | 45,038 | Shares | Sole | 2020-04-28 | |
| No filing history on record for this holder in this stock. | ||||||