Williams Companies (WMB): Congress and insider trades
Who in Congress and inside the company traded WMB, when each filing appeared, and what buying after each one would have earned against the S&P 500.
Key Facts
- Williams Companies (WMB) is a listed stock on NYSE.
- 8 members of Congress filed 17 buys and 10 sells of WMB, the latest published 2026-09-17 (17 September 2026).
- Insiders filed 0 open market buys worth $0 and 9 sells worth $5.8M, the latest filed 2026-09-02 (2 September 2026).
- Across 15 scored buys, Congress averaged +2.4% against the S&P 500 (SPY) over the 90 days after disclosure, with 53% of them ahead of the index. That result is not distinguishable from luck.
- Data as of 2026-09-29 (29 September 2026).
Congress trades in WMB
as of 2026-09-17| Filed | Member | Type | Size | Days to file | 90 day vs S&P |
|---|---|---|---|---|---|
| 17 Sep 2026 | Alan Armstrong (R-OK) | buy | 1K–15K | 29 | n/a |
| 17 Sep 2026 | Alan Armstrong (R-OK) | buy | 15K–50K | 28 | n/a |
| 21 Jul 2026 | Alan Armstrong (R-OK) | sell | 5M–25M | 27 | n/a |
| 21 Jul 2026 | Alan Armstrong (R-OK) | sell | 250K–500K | 29 | n/a |
| 10 Mar 2026 | Gil Cisneros (D-CA) | buy | 1K–15K | 27 | -12.4% |
| 16 Feb 2026 | Gil Cisneros (D-CA) | sell | 1K–15K | 35 | n/a |
| 13 Oct 2023 | Kevin Hern (R-OK) | buy | 1K–15K | 18 | -10.8% |
| 13 Jul 2023 | Kevin Hern (R-OK) | buy | 1K–15K | 16 | +8.8% |
| 10 May 2023 | Ro Khanna (D-CA) | buy | 1K–15K | 18 | +14.8% |
| 11 Apr 2023 | Kevin Hern (R-OK) | buy | 1K–15K | 14 | +3.4% |
| 16 Jan 2023 | Kevin Hern (R-OK) | buy | 1K–15K | 18 | -10.6% |
| 11 Oct 2022 | Kevin Hern (R-OK) | buy | 1K–15K | 14 | +0.8% |
| 18 Jul 2022 | Kevin Hern (R-OK) | buy | 1K–15K | 18 | -0.1% |
| 3 Jun 2022 | Tom Carper (D-DE) | sell | 1K–15K | 18 | n/a |
| 20 May 2022 | Debbie Dingell (D-MI) | sell | 15K–50K | 3 | n/a |
| 13 Apr 2022 | Kevin Hern (R-OK) | buy | 1K–15K | 15 | +1.8% |
| 12 Jan 2022 | Kevin Hern (R-OK) | buy | 1K–15K | 15 | +27.0% |
| 8 Oct 2021 | Kevin Hern (R-OK) | buy | 1K–15K | 10 | -8.3% |
| 16 Sep 2021 | Ro Khanna (D-CA) | buy | 1K–15K | 40 | -0.7% |
| 16 Sep 2021 | Ro Khanna (D-CA) | sell | 1K–15K | 30 | n/a |
| 15 Jul 2021 | Kevin Hern (R-OK) | buy | 1K–15K | 16 | +15.2% |
| 10 Apr 2021 | Kevin Hern (R-OK) | buy | 1K–15K | 11 | +9.4% |
| 17 Mar 2021 | Peter Meijer (R-MI) | sell | 1K–15K | 28 | n/a |
| 16 Jan 2021 | Kevin Hern (R-OK) | buy | 1K–15K | 18 | -2.7% |
| 30 Dec 2020 | Kenny Marchant (R-TX) | sell | 15K–50K | 47 | n/a |
| 17 Dec 2020 | Ro Khanna (D-CA) | sell | 1K–15K | 43 | n/a |
| 21 Nov 2020 | Ro Khanna (D-CA) | sell | 15K–50K | 38 | n/a |
Nothing matches that search.
Insider trades in WMB
as of 2026-09-02| Filed | Insider | Type | Shares | Price | Value | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 2 Sep 2026 | Wilson Terrance Lane | sell | 2,000 | $75.56 | $151K | n/a |
| 17 Aug 2026 | Wilson Terrance Lane | sell | 13,000 | $74.87 | $973K | n/a |
| 4 Aug 2026 | Wilson Terrance Lane | sell | 2,000 | $70.65 | $141K | n/a |
| 2 Jul 2026 | Wilson Terrance Lane | sell | 2,000 | $74.16 | $148K | n/a |
| 2 Jun 2026 | Wilson Terrance Lane | sell | 2,000 | $71.30 | $143K | n/a |
| 7 May 2026 | Porter John Dean | sell | 50,000 | $75.37 | $3.8M | n/a |
| 4 May 2026 | Wilson Terrance Lane | sell | 2,000 | $76.35 | $153K | n/a |
| 2 Apr 2026 | Wilson Terrance Lane | sell | 2,000 | $71.75 | $144K | n/a |
| 17 Mar 2026 | Fazel Payvand | sell | 2,898 | $73.15 | $212K | n/a |
Nothing matches that search.
Related pages
Frequently asked questions
Who has bought WMB?
17 Congress buys by 8 members and 0 insider buys are on file. The tables on this page list every one.
Did buying WMB after a disclosure beat the market?
Across 15 scored buys, Congress averaged +2.4% against the S&P 500 (SPY) over the 90 days after disclosure, with 53% of them ahead of the index. That result is not distinguishable from luck. 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.