Waters Corp
Held by 14 tracked managers as of Q2 2026 · CUSIP ⓘCUSIP: A 9-character ID for one specific security - one share class of one company, or one bond. Tickers can change and can mean different things in different countries; a CUSIP always identifies exactly the same security, which is why filings use it. Guide 941848103 · Sector ⓘGICS sectors: The 11-sector system most investors know (Global Industry Classification Standard): Technology, Health Care, Financials and so on. This site assigns each company a GICS-style sector from its SIC code, with a few hand corrections, so sector pages match the names investors expect. Guide
In plain English: 14 of the investors we track own this stock. In the latest quarter, 6 of them bought more of it and 10 sold some or all of theirs (2 bought it for the first time). That tells you what they did last quarter — not what the stock will do next.
Educational and informational only, not personalized investment advice. Based on public filings that may be delayed or contain errors; verify with the original filings. Disclaimer
Managers holding
14
-1 vs last quarter (like-for-like)
Total value held
$2.67B
Across tracked managers
Average weight ⓘOn average, how big this stock is in the portfolios that own it (its share of each manager's reported portfolio value).
0.6%
Of each manager's book
QoQ value ⓘLike-for-like: only managers that filed both quarters are compared, so a manager filing late (or confidentially) does not look like buying or selling. Includes price changes.
+$618.63M
+31.2% vs last quarter
Net shares bought
+278.1K
Est. net flow +$110.45M
Quarter activity
6 bought · 10 sold
2 new · 3 sold out
Tracked capital in this stock
Total value held (area) and number of managers (line). Dips can mean a large holder filed that quarter confidentially (e.g. Norges Bank in Q1/Q3).
Aggregate buying and selling
Net share change reported each quarter
Who owns WAT?
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Who owns WAT? — Q2 2026
Holders ranked by position size, with each one's quarter-over-quarter change.
Column filters
| # | Manager | Fund | Shares | Value ↓ | % of their portfolio | QoQ | Δ shares | Δ shares % | Est. Δ value ⓘChange in shares × this quarter's price |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Andreas Halvorsen | Viking Global Investors | 1.66M | $623.37M | 1.8% | Added | +405.7K | +32.3% | +$152.15M |
| 2 | Matthew McLennan | First Eagle Investment Management | 1.34M | $500.72M | 0.8% | Reduced | -240.1K | -15.2% | -$90.04M |
| 3 | Mawer | Mawer Investment Management | 1.22M | $456.40M | 3.1% | Reduced | -186.7K | -13.3% | -$70.01M |
| 4 | David Shaw | D.E. Shaw & Co. | 948.64K | $355.78M | 0.2% | Reduced | -76.6K | -7.5% | -$28.73M |
| 5 | Israel Englander | Millennium Management | 894.66K | $335.53M | 0.2% | Added | +709.5K | +383.2% | +$266.09M |
| 6 | Steve Cohen | Point72 Asset Management | 444.23K | $166.60M | 0.3% | Added | +89.8K | +25.4% | +$33.70M |
| 7 | First Pacific Advisors | First Pacific Advisors, LP | 268.16K | $100.57M | 1.2% | Added | +692 | +0.3% | +$259.53K |
| 8 | Norges Bank | Norges Bank Investment Management | 188.33K | $70.63M | 0.0% | — | — | — | — |
| 9 | Ken Griffin | Citadel Advisors | 135.69K | $50.89M | 0.0% | Reduced | -72.8K | -34.9% | -$27.31M |
| 10 | Bill Nygren | Harris Associates (Oakmark Funds) | 18.41K | $6.91M | 0.0% | Reduced | -270.3K | -93.6% | -$101.37M |
| 11 | Two Sigma | Two Sigma Investments | 10.72K | $4.02M | 0.0% | Reduced | -2.5K | -18.6% | -$920.35K |
| 12 | Mario Gabelli | GAMCO Investors | 1.29K | $484.18K | 0.0% | Reduced | -23 | -1.8% | -$8.63K |
| 13 | Ken Fisher | Fisher Asset Management | 596 | $223.52K | 0.0% | New | +596 | — | +$223.52K |
| 14 | Jeremy Grantham | GMO | 541 | $202.90K | 0.0% | New | +541 | — | +$202.90K |
Column filters
| Manager | Fund | Shares sold | Value last quarter ↓ |
|---|---|---|---|
| Charles Brandes | Brandes Investment Partners | -69.5K | $20.68M |
| Fred Alger | Fred Alger Management | -8.2K | $2.43M |
| Sprucegrove | Sprucegrove Investment Management | -2.2K | $656.35K |
Politician trades
Column filters
| Politician | Date | Ticker | Asset | Type | Reported range ⓘThe dollar range the politician reported. Exact amounts are not disclosed. | Est. size ⓘOur estimate only: the midpoint of the reported range. | Owner | Account ⓘSubholding Of: the account the trade was in, as named on the report (e.g. an IRA or a brokerage account). The same stock bought on the same day in different accounts is a separate trade in each account. | Filed ↓ | Filing delay ⓘDays between the trade and the report. Over 45 days is late under the STOCK Act. | Source |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Kevin Hern Politician | Aug 13, 2026 | WAT | Waters Corporation Common Stock (WAT) [ST] | Sale | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Joint | Hern Family Revocable Trust | Sep 1, 2026 | 19 days | PTR ↗ |
| Ro Khanna Politician | Apr 13, 2026 | WAT | WATERS CORPORATION COMMON STOCK scanned | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | — | May 11, 2026 | 28 days | PTR ↗ |
| Ro Khanna Politician | Apr 24, 2026 | WAT | WATERS CORPORATION COMMON STOCK scanned | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | — | May 11, 2026 | 17 days | PTR ↗ |
| Thomas H. Kean, Jr. Politician | Mar 10, 2026 | WAT | Waters Corporation Common Stock (WAT) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | Kean Family Partnership | Apr 13, 2026 | 34 days | PTR ↗ |
| Gil Cisneros Politician | Mar 18, 2026 | WAT | Waters Corporation Common Stock (WAT) [ST] | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Apr 7, 2026 | 20 days | PTR ↗ |
| Thomas H. Kean, Jr. Politician | Feb 13, 2026 | WAT | Waters Corporation Common Stock (WAT) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | — | Mar 18, 2026 | 33 days | PTR ↗ |
| Kevin Hern Politician | Feb 9, 2026 | WAT | Waters Corporation Common Stock (WAT) [ST] | Exchange | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Joint | Hern Family Revocable Trust | Mar 6, 2026 | 25 days | PTR ↗ |
| Debbie Dingell Politician | Feb 10, 2026 | WAT | Waters Corporation Common Stock (WAT) [ST] | Exchange | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | Morgan Stanley Smith Barney LLC Brokerage Account | Feb 23, 2026 | 13 days | PTR ↗ |
| Julia Letlow Politician | Oct 23, 2024 | WAT | Waters Corporation Common Stock (WAT) [ST] | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | Merrill Lynch Investment Account #025 | Jan 13, 2026 | 447 days Late | PTR ↗ |
| Julia Letlow Politician | Nov 19, 2024 | WAT | Waters Corporation Common Stock (WAT) [ST] | Sale | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | Merrill Lynch Investment Account #025 | Jan 13, 2026 | 420 days Late | PTR ↗ |
| Julia Letlow Politician | Dec 8, 2025 | WAT | Waters Corporation Common Stock (WAT) [ST] | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | Merrill Lynch Investment Account #025 | Jan 13, 2026 | 36 days | PTR ↗ |
| Gil Cisneros Politician | Sep 30, 2025 | WAT | Waters Corporation Common Stock (WAT) [ST] | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Oct 10, 2025 | 10 days | PTR ↗ |
| Ro Khanna Politician | Sep 29, 2025 | WAT | WATERS CORPORATION COMMON STOCK scanned | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | — | — | Oct 3, 2025 | 4 days | PTR ↗ |
| Gil Cisneros Politician | Aug 26, 2025 | WAT | Waters Corporation Common Stock (WAT) [ST] | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Sep 12, 2025 | 17 days | PTR ↗ |
| Gil Cisneros Politician | Aug 13, 2025 | WAT | Waters Corporation Common Stock (WAT) [ST] | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Sep 12, 2025 | 30 days | PTR ↗ |
| Gil Cisneros Politician | Aug 12, 2025 | WAT | Waters Corporation Common Stock (WAT) [ST] | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Sep 12, 2025 | 31 days | PTR ↗ |
| Lisa McClain Politician | Jul 22, 2025 | WAT | Waters Corporation Common Stock (WAT) [ST] | Sale | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | Charles Schwab Brokerage Account 924 | Aug 13, 2025 | 22 days | PTR ↗ |
| Lisa McClain Politician | Jul 16, 2025 | WAT | Waters Corporation Common Stock (WAT) [ST] | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | Charles Schwab Brokerage Account 924 | Aug 13, 2025 | 28 days | PTR ↗ |
| Ro Khanna Politician | Jun 23, 2025 | WAT | WATERS CORPORATION COMMON scanned | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | — | — | Jul 9, 2025 | 16 days | PTR ↗ |
| Ro Khanna Politician | May 28, 2025 | WAT | WATERS CORPORATION COMMON scanned | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | — | — | Jun 10, 2025 | 13 days | PTR ↗ |
| Robert P. Bresnahan, Jr. Politician | May 15, 2025 | WAT | Waters Corporation Common Stock | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | — | Jun 9, 2025 | 25 days | PTR ↗ |
| Robert P. Bresnahan, Jr. Politician | Apr 8, 2025 | WAT | Waters Corporation Common Stock (WAT) [ST] | Sale | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | JP Morgan Brokerage Account | May 8, 2025 | 30 days | PTR ↗ |
| Robert P. Bresnahan, Jr. Politician | Feb 25, 2025 | WAT | Waters Corporation Common Stock (WAT) [ST] | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | JP Morgan Brokerage Account | Mar 27, 2025 | 30 days | PTR ↗ |
| Ro Khanna Politician | Feb 19, 2025 | WAT | WATERS CORPORATION COMMON STOCK scanned | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | — | Mar 6, 2025 | 15 days | PTR ↗ |
| Ro Khanna Politician | Jan 17, 2025 | WAT | WATERS COMMON STOCK scanned | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | — | — | Feb 6, 2025 | 20 days | PTR ↗ |