HELDERMAN MARK W
SEC Form 4 insider trading activity
HELDERMAN MARK W has filed 1 SEC Form 4 filing (1 transaction rows) across 1 company, with disclosures dating back to 2026. 1 of those filings fall inside the rolling window. Most recent filing: May 22, 2026.
Companies traded
Other insiders at OKE
No insider trading data found for HELDERMAN MARK W.
Frequently asked questions
How many SEC Form 4 filings has HELDERMAN MARK W made?
HELDERMAN MARK W has filed 1 SEC Form 4 filing (1 transaction rows) across 1 company since 2026.
Which companies does HELDERMAN MARK W trade?
HELDERMAN MARK W has filed SEC Form 4 disclosures for 1 company, including OKE.
When was HELDERMAN MARK W's most recent SEC Form 4 filing?
HELDERMAN MARK W's most recent SEC Form 4 filing on Tracefour is dated May 22, 2026.