Waters Corp
WAT- Exchange
- NYSE
- Industry
- Laboratory Analytical Instruments
- SEC CIK
- 0001000697
In the last 90 days, Waters Corp insiders filed 0 open-market purchases and 1 sale; 1,185 institutions reported holding it in 13F filings for Q2 2026, worth $37.3B in total; 3 superinvestors hold it, including Fundsmith and Viking Global Investors.
Superinvestors holding WAT, Q2 2026
3 superinvestors report holding Waters Corp on Form 13F, worth $1.48B in total. Weight is Waters Corp's share of each 13F portfolio; actions compare shares with Q1 2026.
| Superinvestor | % of portfolio | Shares | Value | vs. previous quarter |
|---|---|---|---|---|
| FundsmithTerry Smith | 6.2% | 2,273,632 | $852.7M | Reduced−29.2% |
| Viking Global InvestorsAndreas Halvorsen | 1.8% | 1,662,140 | $623.4M | Added+32.3% |
| Harris Associates (Oakmark)Bill Nygren | <0.1% | 18,413 | $6.91M | Reduced−93.6% |
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of WAT each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2026
3 superinvestors holding at quarter end
- Added
- Viking Global Investors (+32.3%)
- Reduced
- Fundsmith (−29.2%), Harris Associates (Oakmark) (−93.6%)
Q1 2026
3 superinvestors holding at quarter end
- New
- Viking Global Investors, Harris Associates (Oakmark)
- Reduced
- Fundsmith (−9.7%)
Q4 2025
1 superinvestor holding at quarter end
- Reduced
- Fundsmith (−10.0%)
Q3 2025
1 superinvestor holding at quarter end
- Added
- Fundsmith (+9.6%)
Q2 2025
1 superinvestor holding at quarter end
- Reduced
- Fundsmith (−0.1%)
Q1 2025
1 superinvestor holding at quarter end
- Reduced
- Fundsmith (−0.6%)
Q4 2024
1 superinvestor holding at quarter end
- Reduced
- Fundsmith (−0.3%)
Q3 2024
1 superinvestor holding at quarter end
- Reduced
- Fundsmith (−0.2%)
Q2 2024
1 superinvestor holding at quarter end
- Reduced
- Fundsmith (−3.0%)
Q1 2024
1 superinvestor holding at quarter end
- Reduced
- Fundsmith (−0.9%)
Q4 2023
1 superinvestor holding at quarter end
- Reduced
- Fundsmith (−0.2%)
Q3 2023
1 superinvestor holding at quarter end
- Reduced
- Fundsmith (−0.1%)
Q2 2023
1 superinvestor holding at quarter end
- Added
- Fundsmith (+3.0%)
- Sold out
- Maverick Capital
Q1 2023
2 superinvestors holding at quarter end
- New
- Maverick Capital
- Added
- Fundsmith (+0.2%)
Q4 2022
1 superinvestor holding at quarter end
- Reduced
- Fundsmith (−0.1%)
Q3 2022
1 superinvestor holding at quarter end
- Added
- Fundsmith (+0.1%)
Q2 2022
1 superinvestor holding at quarter end
- Added
- Fundsmith (0.0%)
Q1 2022
1 superinvestor holding at quarter end
- Reduced
- Fundsmith (−18.3%)
Q4 2021
1 superinvestor holding at quarter end
- Reduced
- Fundsmith (0.0%)
Q3 2021
1 superinvestor holding at quarter end
- Added
- Fundsmith (+2.3%)
Q2 2021
1 superinvestor holding at quarter end
- Added
- Fundsmith (+0.3%)