Helderman Mark W
- SEC CIK
- 0001766621
No open-market purchases or sales filed in the past year.
Current role at each company
- OKE ONEOK IncDirectoras of May 22, 2026
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- –
- 0 filings
- Net
- –
- Bought minus sold
- Companies
- 0
- With open-market trades
Trades
Every Form 4 that lists Helderman Mark W as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Mar 4, 2022 (view filing) | Mar 3 | 1 day | Helderman Mark WDirector | SSaleCommon Stock, par value $.0.01 | −30.0K | $67.27 | −$2.02M | −59.2%20.7K after |