| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Director | President and CEO
5 companies
Mark A McCollum is Director at AROC and has filed Form 4s across 5 companies. Mark A McCollum's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $4.1M at current prices.
The biggest single holding is AROC (~$2.6M) as Director.
Mark A McCollum has 30 Form 4 filings on record from March 2015 to August 2026, across 5 companies: Director at Westlake (WLK), 2018–2026; Director at Seadrill (SDRL), 2025–2026; Director at Oneok (OKE), 2026, and 2 more.
The 44 reported transactions were 14 option or other derivative awards, 11 option exercises, 11 stock awards and 6 tax withholdings, plus smaller numbers of other types.
There are no priced open-market purchases or sales on record, so none of these filings shows a decision to buy or sell shares in the market.
No transactions found
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