Waters Corp (WAT): Congress and insider trades
Who in Congress and inside the company traded WAT, when each filing appeared, and what buying after each one would have earned against the S&P 500.
Key Facts
- Waters Corp (WAT) is a listed stock on NYSE.
- 8 members of Congress filed 14 buys and 17 sells of WAT, the latest published 2026-09-02 (2 September 2026).
- Insiders filed 2 open market buys worth $451K and 1 sell worth $1.4M, the latest filed 2026-08-07 (7 August 2026).
- Across 12 scored buys, Congress averaged +0.4% against the S&P 500 (SPY) over the 90 days after disclosure, with 58% of them ahead of the index. That result is not distinguishable from luck.
- Across 2 scored buys, Insiders averaged +11.0% against the S&P 500 (SPY) over the 90 days after disclosure, with 100% of them ahead of the index. That result is too few trades to tell.
- Data as of 2026-09-29 (29 September 2026).
Congress trades in WAT
as of 2026-09-02| Filed | Member | Type | Size | Days to file | 90 day vs S&P |
|---|---|---|---|---|---|
| 2 Sep 2026 | Kevin Hern (R-OK) | sell | 1K–15K | 19 | n/a |
| 5 Aug 2026 | Tommy Tuberville (R-AL) | sell | 1K–15K | 824 | n/a |
| 8 Jul 2026 | Ro Khanna (D-CA) | sell | 1K–15K | 34 | n/a |
| 11 Jun 2026 | Ro Khanna (D-CA) | buy | 1K–15K | 25 | +10.5% |
| 13 May 2026 | Ro Khanna (D-CA) | buy | 1K–15K | 28 | +21.4% |
| 13 May 2026 | Ro Khanna (D-CA) | buy | 1K–15K | 17 | +21.4% |
| 14 Apr 2026 | Thomas Kean Jr (R-NJ) | sell | 1K–15K | 34 | n/a |
| 9 Apr 2026 | Ro Khanna (D-CA) | sell | 15K–50K | 28 | n/a |
| 8 Apr 2026 | Gil Cisneros (D-CA) | buy | 1K–15K | 20 | +6.0% |
| 18 Mar 2026 | Thomas Kean Jr (R-NJ) | sell | 1K–15K | 244 | n/a |
| 6 Mar 2026 | Kevin Hern (R-OK) | exchange | 1K–15K | 25 | n/a |
| 24 Feb 2026 | Debbie Dingell (D-MI) | receive | 1K–15K | 13 | n/a |
| 14 Jan 2026 | Julia Letlow (R-LA) | buy | 1K–15K | 36 | -18.7% |
| 14 Jan 2026 | Julia Letlow (R-LA) | sell | 1K–15K | 420 | n/a |
| 14 Jan 2026 | Julia Letlow (R-LA) | buy | 1K–15K | 447 | -18.7% |
| 10 Nov 2023 | Ro Khanna (D-CA) | buy | 1K–15K | 37 | +14.3% |
| 10 Nov 2023 | Ro Khanna (D-CA) | sell | 1K–15K | 8 | n/a |
| 11 Oct 2023 | Lois Frankel (D-FL) | sell | 1K–15K | 32 | n/a |
| 12 Jul 2023 | Ro Khanna (D-CA) | sell | 1K–15K | 15 | n/a |
| 12 Jul 2023 | Ro Khanna (D-CA) | buy | 1K–15K | 12 | +1.5% |
| 14 Jun 2023 | Ro Khanna (D-CA) | buy | 1K–15K | 20 | -1.6% |
| 9 Feb 2023 | Ro Khanna (D-CA) | sell | 1K–15K | 29 | n/a |
| 4 Jan 2023 | Ro Khanna (D-CA) | buy | 1K–15K | 28 | -20.6% |
| 12 Oct 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 31 | n/a |
| 15 Jun 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 31 | -14.4% |
| 12 May 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 25 | n/a |
| 11 Mar 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 19 | +12.2% |
| 10 Jan 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 31 | n/a |
| 10 Jan 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 24 | n/a |
| 8 Dec 2021 | Ro Khanna (D-CA) | buy | 1K–15K | 28 | +1.4% |
| 10 Nov 2021 | Ro Khanna (D-CA) | sell | 15K–50K | 33 | n/a |
| 19 Aug 2021 | Lois Frankel (D-FL) | sell | 1K–15K | 14 | n/a |
| 24 Jul 2021 | Tommy Tuberville (R-AL) | buy | 1K–15K | 116 | -7.7% |
Nothing matches that search.
Insider trades in WAT
as of 2026-08-07| Filed | Insider | Type | Shares | Price | Value | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 7 Aug 2026 | KUEBLER CHRISTOPHER A | sell | 3,626 | $397.94 | $1.4M | n/a |
| 18 Mar 2026 | Jiang Wei | buy | 500 | $289.46 | $145K | +6.6% |
| 10 Mar 2026 | FEARON RICHARD H | buy | 1,000 | $306.34 | $306K | +15.5% |
Nothing matches that search.
Related pages
Frequently asked questions
Who has bought WAT?
14 Congress buys by 8 members and 2 insider buys are on file. The tables on this page list every one.
Did buying WAT after a disclosure beat the market?
Across 12 scored buys, Congress averaged +0.4% against the S&P 500 (SPY) over the 90 days after disclosure, with 58% of them ahead of the index. That result is not distinguishable from luck. Across 2 scored buys, Insiders averaged +11.0% against the S&P 500 (SPY) over the 90 days after disclosure, with 100% of them ahead of the index. That result is too few trades to tell. A single stock is a small sample.
Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.
Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.