Mark W Helderman

Insider

First SEC filing: May 28, 2025 · Latest: May 28, 2025

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 2 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

2 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 23, 2025	OKE	A	3,450	$81.14	$279,933	35,665 Direct	+10.71%	Acquired	19.9% (price as of 2026-08-19)
May 22, 2024	OKE	A	3,429	$81.66	$280,012	32,215 Direct	+11.91%	Acquired	19.1% (price as of 2026-08-19)
March 18, 2020	OKE	P	30,000	$13.06	$391,800	40,000 Direct	+300.00%	Acquired	644.7% (price as of 2026-08-19)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.