InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
0
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
No signal scores available.
Discover the detailed record of transactions filed by Mccollum Mark A, Director. Officer active across 5 companies, notably Westlake Chemical CORP. Aggregated, 13 disclosures have been logged. Activity tracked since 3 March 2022. The latest transaction was disclosed on 23 January 2026 (Attribution). Regulator: SEC (Form 4). The full history is free.
Companies and markets linked to Mccollum Mark A
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations13 total
2,168 sharesCommon StockSEC:0001193125-26-342006:0
727 shares@ US$78.00100.0% of flowCommon Stock, par value $0.01SEC:0001215888-26-000004:0
1,128 sharesCommon StockSEC:0001215888-25-000005:0
2,409 sharesCommon SharesSEC:0000950170-25-056133:0
8,169 sharesCommon StockSEC:0000950170-24-130182:0
1,136 sharesCommon StockSEC:0000950170-24-095193:0
8,130 shares0Common StockSEC:0000101778-24-000049:0
1,446 sharesCommon StockSEC:0001209191-23-045507:0
7,754 shares0Common StockSEC:0000101778-23-000062:0
415 shares0Common StockSEC:0000101778-22-000222:0
1,763 sharesCommon StockSEC:0001567619-22-016170:0
3,000 shares0Common StockSEC:0001567619-22-006353:0
2,400 sharesCommon StockSEC:0001567619-21-015725:0
13 of 13 declarations
About Mccollum Mark A
MCCOLLUM MARK A is Administrateur. He has 12 filings in total, and the sampled recent filings run from 2021-08-16 to 2026-01-27. In these recent filings, the most common transaction nature is the exercise of options, with total buys and total sells stated at 0 € and 0 €.
