Helderman Mark W
CIK 0001766621
Director
Filings
6
Latest May 22, 2026
Issuers covered
1
Showing
6 of 6
Page 1
Track record
1 of 1 open-market trades scored (100% price coverage). Returns are signed: a +10% move on a sale shows as -10% (insider was wrong).
| Horizon | Trades | Win rate | Avg | Median | Best | Worst |
|---|---|---|---|---|---|---|
| 30 days | 1 | 0% | -5.1% | -5.1% | -5.1% | -5.1% |
| 90 days | 1 | 100% | +1.3% | +1.3% | +1.3% | +1.3% |
| 180 days | 1 | 100% | +6.9% | +6.9% | +6.9% | +6.9% |
| 365 days | 1 | 0% | -0.2% | -0.2% | -0.2% | -0.2% |
Issuers
Companies where Helderman Mark W has filed
| Ticker | Issuer | Filings | Last filed |
|---|---|---|---|
| OKE | Oneok Inc /New/ | 6 | May 22, 2026 |
All filings
6 Form 4 / 4-A filings, newest first
| Filed | Top transaction | Shares | Price | Value | ||
|---|---|---|---|---|---|---|