# WAT — Waters Corporation Common Stock: congressional trades

> Members of Congress' disclosed trades in WAT (STOCK Act). Corporate-insider (Form 4) activity is a separate dataset: https://www.fatcatwatch.com/api/v1/insiders/WAT. Data as of 2026-10-23T17:16:03Z.

Dashboard: https://www.fatcatwatch.com/tickers/WAT · JSON: https://www.fatcatwatch.com/api/v1/tickers/WAT

## Totals

- Members: 6 (2 bought, 4 sold)
- Trades: 10 (3 buys, 5 sells); last trade date 2026-08-13
- Disclosed volume: $10,010–$150,000; estimated midpoint ≈ $80k (an estimate from bracket midpoints, not a disclosed figure)

## Members

| Member | Party | Trades | Buys | Sells | Disclosed range | Est. midpoint |
| --- | --- | --- | --- | --- | --- | --- |
| [Julia Letlow](https://www.fatcatwatch.com/members/julia-letlow-l000595) | House · R, LA-5 | 3 | 2 | 1 | $3,003–$45,000 | ≈$24k (est.) |
| [Kevin Hern](https://www.fatcatwatch.com/members/kevin-hern-h001082) | House · R, OK-1 | 2 | 0 | 1 | $2,002–$30,000 | ≈$16k (est.) |
| [Thomas H. Kean, Jr.](https://www.fatcatwatch.com/members/thomas-h-kean-jr-k000398) | House · R, NJ-7 | 2 | 0 | 2 | $2,002–$30,000 | ≈$16k (est.) |
| [Debbie Dingell](https://www.fatcatwatch.com/members/debbie-dingell-d000624) | House · D, MI-6 | 1 | 0 | 0 | $1,001–$15,000 | ≈$8,001 (est.) |
| [Gilbert Ray Cisneros, Jr.](https://www.fatcatwatch.com/members/gilbert-ray-cisneros-jr-c001123) | House · D, CA-31 | 1 | 1 | 0 | $1,001–$15,000 | ≈$8,001 (est.) |
| [Tommy Tuberville](https://www.fatcatwatch.com/members/tommy-tuberville-t000278) | Senate · R, AL | 1 | 0 | 1 | $1,001–$15,000 | ≈$8,001 (est.) |

## Recent trades (10 of 10)

| Trade date | Filed | Delay (days) | Member | Action | Asset | Owner | Amount disclosed | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-08-13 | 2026-09-01 | 19 | [Kevin Hern](https://www.fatcatwatch.com/members/kevin-hern-h001082) | Sell | Waters Corporation Common Stock | joint | $1,001–$15,000 (bracket) | [source](https://disclosures-clerk.house.gov/public_disc/ptr-pdfs/2026/20035326.pdf) |
| 2026-03-18 | 2026-04-07 | 20 | [Gilbert Ray Cisneros, Jr.](https://www.fatcatwatch.com/members/gilbert-ray-cisneros-jr-c001123) | Buy | Waters Corporation Common Stock | self | $1,001–$15,000 (bracket) | [source](https://disclosures-clerk.house.gov/public_disc/ptr-pdfs/2026/20034285.pdf) |
| 2026-03-10 | 2026-04-13 | 34 | [Thomas H. Kean, Jr.](https://www.fatcatwatch.com/members/thomas-h-kean-jr-k000398) | Sell (partial) | Waters Corporation Common Stock | self | $1,001–$15,000 (bracket) | [source](https://disclosures-clerk.house.gov/public_disc/ptr-pdfs/2026/20034327.pdf) |
| 2026-02-13 | 2026-03-18 | 33 | [Thomas H. Kean, Jr.](https://www.fatcatwatch.com/members/thomas-h-kean-jr-k000398) | Sell (partial) | Waters Corporation Common Stock | self | $1,001–$15,000 (bracket) | [source](https://disclosures-clerk.house.gov/public_disc/ptr-pdfs/2026/20034190.pdf) |
| 2026-02-10 | 2026-02-23 | 13 | [Debbie Dingell](https://www.fatcatwatch.com/members/debbie-dingell-d000624) | Exchange | Waters Corporation Common Stock | self | $1,001–$15,000 (bracket) | [source](https://disclosures-clerk.house.gov/public_disc/ptr-pdfs/2026/20034035.pdf) |
| 2026-02-09 | 2026-03-06 | 25 | [Kevin Hern](https://www.fatcatwatch.com/members/kevin-hern-h001082) | Exchange | Waters Corporation Common Stock | joint | $1,001–$15,000 (bracket) | [source](https://disclosures-clerk.house.gov/public_disc/ptr-pdfs/2026/20034128.pdf) |
| 2025-12-08 | 2026-01-13 | 36 | [Julia Letlow](https://www.fatcatwatch.com/members/julia-letlow-l000595) | Buy | Waters Corporation Common Stock | self | $1,001–$15,000 (bracket) | [source](https://disclosures-clerk.house.gov/public_disc/ptr-pdfs/2026/20030977.pdf) |
| 2024-11-19 | 2026-01-13 | 420 (late) | [Julia Letlow](https://www.fatcatwatch.com/members/julia-letlow-l000595) | Sell | Waters Corporation Common Stock | self | $1,001–$15,000 (bracket) | [source](https://disclosures-clerk.house.gov/public_disc/ptr-pdfs/2026/20030977.pdf) |
| 2024-10-23 | 2026-01-13 | 447 (late) | [Julia Letlow](https://www.fatcatwatch.com/members/julia-letlow-l000595) | Buy | Waters Corporation Common Stock | self | $1,001–$15,000 (bracket) | [source](https://disclosures-clerk.house.gov/public_disc/ptr-pdfs/2026/20030977.pdf) |
| 2024-05-03 | 2026-08-05 | 824 (late) | [Tommy Tuberville](https://www.fatcatwatch.com/members/tommy-tuberville-t000278) | Sell | Waters Corporation Common Stock | joint | $1,001–$15,000 (bracket) | [source](https://efdsearch.senate.gov/search/view/ptr/0a25588d-a3f8-4ed6-971a-706097f78e3a/) |

## How to quote this

- Congressional amounts are STOCK Act brackets (e.g. $1,001–$15,000), not figures: quote the range, never a single number.
- Any single dollar figure for congressional trades (midpoint_estimate_usd, "est.") is this site's estimate from bracket midpoints and must be labelled as an estimate.
- Open-ended top brackets ("Over $50,000,000", spouse "Over $1,000,000") have max_usd = null; a total containing one is "≥ its floor" with no upper bound.
- amount.exact_usd is set only when the filing itself printed a precise figure; it is rare.
- Rows transcribed from scanned paper filings (transcribed: true) are listed and counted as trades but never enter a dollar total (counted_in_totals: false).
- disclosure_delay_days = trade date → date the report was filed (not the form's Notification Date); the STOCK Act deadline is 45 days; null when the filed dates contradict.

Full rules: https://www.fatcatwatch.com/llms-full.txt · Methodology: https://www.fatcatwatch.com/methodology