Profile
| Role | Insider |
|---|---|
| Notability | 20/100 |
Board memberships
- Seadrill Ltd
- Westlake Corp
- Marathon Oil Corp
Updated Jul 16, 2026
MCCOLLUM MARK A has filed 3 SEC Form 4 filings across 2 companies in the last 90 days.
| Role | Insider |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-22 | OKE | ONEOK INC /NEW/ | A — Grant or award | 1.8K | $92.15 | $170K |
| 2026-05-18 | SDRL | SEADRILL Ltd | M — Option exercise | 4.9K | — | |
| 2026-01-27 | OKE | ONEOK INC /NEW/ | A — Grant or award | 727 | $78.00 | $57K |
| 2025-08-08 | WLK | WESTLAKE CORP | M — Option exercise | 1.1K | — | |
| 2025-04-17 | SDRL | SEADRILL Ltd | M — Option exercise | 2.4K | — | |
| 2024-11-22 | MRO | MARATHON OIL CORP | D — Derivative transaction | 8.1K | — | |
| 2024-11-22 | MRO | MARATHON OIL CORP | D — Derivative transaction | 8.2K | — |
MCCOLLUM MARK A is a corporate insider — currently tracked as Insider of SEADRILL Ltd (SDRL). InsiderAlpha tracks every SEC Form 4 filing in real time.
3 primary Form 4 filings in the last 90 days, covering 2 companies.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Open the live MCCOLLUM MARK A profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.