WMB Congressional Stock Trades
Williams Companies, Inc.
Last disclosed trade Sep 8
Every disclosed trade in WMB by members of Congress under the STOCK Act, parsed by Coldpine. Informational only, sourced from public filings. Not investment advice. See every utilities stock Congress trades.
Sample · the intelligence layer
Alan Armstrong · Sold $WMB · Sep 8 · $250K–$500K
Every disclosed trade in the database gets this treatment: a four-factor score and a written read from Coldpine’s AI-based analysis. Informational only, not investment advice. Create a free account for every scored trade →
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The record on $WMB
Coldpine has parsed 16 disclosed trades in $WMB by 4 members of Congress, drawn from 12 periodic transaction reports dated Dec 26, 2022 through Sep 8, 2026. That is 11 trades from House members and 5 trades from senators, filed 4 by Democrats and 12 by Republicans.
Of the 16 trades with a known filing lag, 3 were reported more than 45 days after the trade date, outside the window the STOCK Act sets. The median lag was 24 days. The longest was 161 days: a $WMB purchase by Jonathan Jackson dated Mar 17, 2025, disclosed Aug 25, 2025. How late filing is measured across all of Congress is in the late-filers study.
15 of the 15 trades that list an account holder (100%) were reported under a spouse, dependent child, or joint account rather than the member directly.
Kevin Hern filed the most $WMB purchases (7), and Alan Armstrong the most sales (3).
Activity peaked in 2026 with 5 trades. The busiest single month was April 2025, when 2 different members disclosed $WMB trades.
Across the 11 purchases Coldpine can price, $WMB moved +0.16% on average between the trade date and the disclosure date, against +3.41% for the S&P 500 over the same windows. The stock was higher at disclosure than at the trade in 36% of those purchases. That is a record of what already happened, not a forecast. Method: what stocks do before Congress discloses.
Members who trade WMB
Recent disclosed trades in WMB
| Date | Member | Type | Amount |
|---|---|---|---|
| Sep 8 | Alan Armstrong(OK) | sell | $250K–$500K |
| Aug 20 | Alan Armstrong(OK) | buy | $15K–$50K |
| Aug 19 | Alan Armstrong(OK) | buy | $1K–$15K |
| Jun 24 | Alan Armstrong(OK) | sell | $5.0M–$25.0M |
| Jun 22 | Alan Armstrong(OK) | sell | $250K–$500K |
| Apr 23 | Jonathan Jackson(IL) | sell | $1K–$15K |
| Apr 3 | Dwight Evans(PA) | sell | $1K–$15K |
| Mar 24 | Jonathan Jackson(IL) | buy | $1K–$15K |
| Mar 17 | Jonathan Jackson(IL) | buy | $1K–$15K |
| Jun 24 | Kevin Hern(OK) | buy | $1K–$15K |
| Mar 25 | Kevin Hern(OK) | buy | $1K–$15K |
| Dec 26 | Kevin Hern(OK) | buy | $1K–$15K |
| Sep 25 | Kevin Hern(OK) | buy | $1K–$15K |
| Jun 26 | Kevin Hern(OK) | buy | $1K–$15K |
| Mar 27 | Kevin Hern(OK) | buy | $1K–$15K |
| Dec 26 | Kevin Hern(OK) | buy | $1K–$15K |
From Coldpine Research
Data sourced from public STOCK Act disclosures. Coldpine is a publisher of intelligence on congressional disclosures, not an investment adviser. See full history and scores, free with an account →