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Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (7 ops.)
Latest filing published 14 May 2026 for Westlake CORP. Read the official filing
Filing timeline
BuySaleMark Steven Bender
Insider track record
Disclosed buys
0
Disclosed sells
7
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Mark Steven Bender: trading record in brief
Mark Steven Bender (finance chief) discloses dealings in Westlake Corp to SEC (Form 4). Over a trading history stretching from 23 March 2021 to 12 May 2026, the count stands at 31 filings.
The open-market record consists of 7 sales worth €4.4M, with no purchase. Outside the open market, there are 8 share grants and 16 option exercises. In 2026 alone, the filings show no purchases and 1 sale.
The latest filing, published on 14 May 2026, reports an option exercise in Westlake Corp. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 3 days. For comparison, the SEC allows two business days to file a Form 4. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.
Companies and markets linked to Mark Steven Bender
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations31 total
13,164 shares0Common StockSEC:0001193125-26-223323:0
16,413 shares@ US$112.53525.2% of flowCommon StockSEC:0001193125-26-131706:0
1,171 shares@ US$104.960.0010% mcap7.3% of flowCommon StockSEC:0001193125-26-096289:0
6,199 shares@ US$65.81255.2% of flowCommon StockSEC:0001193125-26-084672:0
1,777 shares0Common StockSEC:0001193125-26-063686:0
4,751 shares0Common StockSEC:0001193125-26-059207:0
8,819 shares0Common StockSEC:0000950170-25-025475:0
13,987 shares0Common StockSEC:0000950170-25-024028:0
2,938 shares0Common StockSEC:0000950170-24-097402:0
4,950 shares@ US$152.1914.5% of flowCommon StockSEC:0000950170-24-053244:0
4,804 shares@ US$141.01912.8% of flowCommon StockSEC:0000950170-24-027605:0
4,854 shares@ US$137.5712.7% of flowCommon StockSEC:0000950170-24-021783:0
11,150 shares0Common StockSEC:0000950170-24-017619:0
12,033 shares@ US$107.7524.3% of flowCommon StockSEC:0001209191-23-045125:0
1,084 shares@ US$65.81251.3% of flowCommon StockSEC:0001209191-23-028402:0
14,342 shares0Common StockSEC:0001567619-23-005094:0
3,000 shares@ US$65.81253.9% of flowCommon StockSEC:0001567619-23-003892:0
14,342 shares0Common StockSEC:0001567619-23-003262:0
7,150 sharesCommon StockSEC:0001567619-23-003131:0
2,061 shares@ US$79.830.0013% mcap10.0% of flowCommon StockSEC:0001567619-22-007819:0
3,000 shares@ US$79.830.0019% mcap14.5% of flowCommon StockSEC:0001567619-22-007737:0
2,000 shares@ US$79.830.0013% mcap9.7% of flowCommon StockSEC:0001567619-22-007689:0
4,000 shares@ US$79.830.0026% mcap19.5% of flowCommon StockSEC:0001567619-22-007575:0
4,000 shares@ US$79.830.0024% mcap18.2% of flowCommon StockSEC:0001567619-22-007463:0
3,000 shares@ US$79.830.0018% mcap13.5% of flowCommon StockSEC:0001567619-22-007422:0
25 of 31 declarations
