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.
Holders of 5% or more of WAT
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Waters Corp, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 7.80%7.64M shares | −1.20 ppfrom 9.00% | Apr 17, 20252 filings | Apr 24, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 7.49%7.35M shares | New | Apr 30, 20261 filing | Apr 30, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
14 Schedule 13D and 13G filings on Waters Corp, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| May 15, 20266:53 AM ET | Fundsmith LLPSuperinvestorFundsmith | 13G/A | 4.40%4.31M shares | –Below 5% | Mar 31, 2026 | SEC |
| Apr 30, 20262:33 PM ET | Vanguard Capital Management LLC | 13G | 7.49%7.35M shares | New | Mar 31, 2026 | SEC |
| Apr 24, 20264:11 PM ET | BlackRock, Inc. | 13G/A | 7.80%7.64M shares | −1.20 ppfrom 9.00% | Mar 31, 2026 | SEC |
| Mar 27, 20262:13 PM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | −12.86 ppfrom 12.86%Below 5% | Mar 13, 2026 | SEC |
| Nov 14, 202512:12 PM ET | Alliancebernstein L.P. | 13G/A | 3.50%2.08M shares | −3.30 ppfrom 6.80%Below 5% | Sep 30, 2025 | SEC |
| Oct 31, 202511:42 AM ET | Vanguard Group Inc | 13G/A | 12.86%7.66M shares | – | Sep 30, 2025 | SEC |
| Aug 13, 20253:50 PM ET | Alliancebernstein L.P. | 13G/A | 6.80%4.03M shares | +1.60 ppfrom 5.20% | Jun 30, 2025 | SEC |
| May 14, 20255:30 PM ET | Alliancebernstein L.P. | 13G | 5.20%3.07M shares | New | Mar 31, 2025 | SEC |
| Apr 17, 20259:35 AM ET | BlackRock, Inc. | 13G/A | 9.00%5.35M shares | – | Mar 31, 2025 | SEC |
| Feb 14, 2023 | Fundsmith LLPSuperinvestorFundsmith | 13GOld format | – | – | – | SEC |
| Feb 9, 2023 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 27, 2023 | Bank of New York Mellon Corp | 13G/AOld format | – | – | – | SEC |
| Jan 24, 20231:56 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Apr 8, 20229:57 AM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 11, 2022 | Fundsmith LLPSuperinvestorFundsmith | 13GOld format | – | – | – | SEC |
| Feb 10, 2022 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 2, 2022 | Massachusetts Financial Services Co | 13G/AOld format | – | – | – | SEC |
| Feb 1, 20225:14 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 1, 2022 | Bank of New York Mellon Corp | 13G/AOld format | – | – | – | SEC |
| Feb 12, 2021 | Fundsmith LLPSuperinvestorFundsmith | 13G/AOld format | – | – | – | SEC |
| Feb 11, 2021 | Massachusetts Financial Services Co | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2021 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 1, 20218:23 AM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 1, 2021 | Bank of New York Mellon Corp | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Waters Corp shares.
No Form 144 notices for Waters Corp are on file.