WLK insider trades & Congress trades
Westlake Corp: public insider filings and Congress disclosures, in one place.
Bourse has recorded 2 open-market insider transactions in Westlake Corp (WLK) (0 purchases with code P and 2 sales with code S), the most recent on August 11, 2026.
There were no open-market insider transactions in the last 90 days.
Members of Congress have disclosed 22 trades in WLK (10 purchases, 12 sales), the latest transaction dated August 14, 2017. Congress filings can arrive up to 45 days after the trade.
Insider transactions
SEC Form 4, open-market purchases (P) and sales (S) only. Awards, option exercises and tax withholding are excluded. “After” shows the stock’s return over the month following the trade, where available.
| Date | Insider | Role | Type | Shares | Price | Value | After 1M |
|---|---|---|---|---|---|---|---|
| Aug 11, 2026 | Chao Albert | Executive Chairman | Sell | 7,489 | $79.70 | $597K | −0.1% |
| Aug 11, 2026 | Chao Albert | Executive Chairman | Sell | 31,384 | $80.42 | $2.52M | −0.1% |
Congress trades
Disclosures under the STOCK Act. Amounts are reported as ranges; some trades are made by a spouse or dependent child.
| Traded | Member | Party | Type | Amount | Disclosed | Filing |
|---|---|---|---|---|---|---|
| Aug 14, 2017 | David A Perdue , Jr | Senate | Sell | $1,001 - $15,000 | – | Source |
| Aug 10, 2017 | David A Perdue , Jr | Senate | Sell | $1,001 - $15,000 | – | Source |
| Aug 9, 2017 | David A Perdue , Jr | Senate | Sell | $1,001 - $15,000 | – | Source |
| Aug 8, 2017 | David A Perdue , Jr | Senate | Sell | $1,001 - $15,000 | – | Source |
| Aug 4, 2017 | David A Perdue , Jr | Senate | Sell | $15,001 - $50,000 | – | Source |
| Aug 3, 2017 | David A Perdue , Jr | Senate | Sell | $15,001 - $50,000 | – | Source |
| Apr 27, 2017 | David A Perdue , Jr | Senate | Sell | $1,001 - $15,000 | – | Source |
| Mar 23, 2017 | David A Perdue , Jr | Senate | Sell | $1,001 - $15,000 | – | Source |
| Mar 16, 2017 | David A Perdue , Jr | Senate | Sell | $1,001 - $15,000 | – | Source |
| Mar 15, 2017 | David A Perdue , Jr | Senate | Sell | $1,001 - $15,000 | – | Source |
| Mar 13, 2017 | David A Perdue , Jr | Senate | Sell | $1,001 - $15,000 | – | Source |
| Mar 10, 2017 | David A Perdue , Jr | Senate | Sell | $1,001 - $15,000 | – | Source |
| Nov 8, 2016 | David A Perdue , Jr | Senate | Buy | $1,001 - $15,000 | – | Source |
| Sep 28, 2016 | David A Perdue , Jr | Senate | Buy | $1,001 - $15,000 | – | Source |
| Jul 29, 2016 | David A Perdue , Jr | Senate | Buy | $1,001 - $15,000 | – | Source |
| Jul 26, 2016 | David A Perdue , Jr | Senate | Buy | $1,001 - $15,000 | – | Source |
| Jul 18, 2016 | David A Perdue , Jr | Senate | Buy | $1,001 - $15,000 | – | Source |
| Jun 29, 2016 | David A Perdue , Jr | Senate | Buy | $1,001 - $15,000 | – | Source |
| Jun 28, 2016 | David A Perdue , Jr | Senate | Buy | $1,001 - $15,000 | – | Source |
| Jun 23, 2016 | David A Perdue , Jr | Senate | Buy | $1,001 - $15,000 | – | Source |
| Jan 29, 2016 | David A Perdue , Jr | Senate | Buy | $1,001 - $15,000 | – | Source |
| Jan 15, 2016 | David A Perdue , Jr | Senate | Buy | $1,001 - $15,000 | – | Source |
Data as of November 12, 2026. Public filings only. A purchase or sale by a politician or an insider does not by itself imply any wrongdoing.
See all the latest insider trades. New to these filings? Read how to read a Form 4, how Congress trades are disclosed and what insider cluster buying means. Sources and limits are on the Methodology page.
See these filings as they land
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