Insiders / McCollum Mark a

McCollum Mark a

CIK 1215888personinsider

Companies

2

First seen

Jan 27, 2026

Last activity

Jun 5, 2026

Companies

Company	Role	Shares held	Peak held	Trades	Latest
SEADRILL Ltd · SDRL	Director	7,269	7,269	3	—
ONEOK Inc · OKE	Director	2,572	2,572	2	—

All securities held

3 positions · latest reported per filing

Company	Security	Shares	As of
ONEOK Inc	Common Stock, par value $0.01	2,572	May 20, 2026
SEADRILL Ltd	Common Shares	7,269	May 14, 2026
SEADRILL Ltd	Restricted Stock UnitsDerivative	2,618	Jun 3, 2026

Activity

InsidersInstitutions

This person's insider trades (Form 4), across every company.

Date	Action	Company	Value	Shares Δ	Position after	Impact
May 20, 2026	Grant	OKE ONEOK Inc Common Stock, par value $0.01	$170.0K	+2K +253.78%	2,572 <0.01% of shares	low
Jan 23, 2026	Grant	OKE ONEOK Inc Common Stock, par value $0.01	$56.7K	+727	727 <0.01% of shares	low
Jun 3, 2026	Grant	SDRL SEADRILL Ltd Restricted Stock Units	—	+3K	2,618 <0.01% of shares	low
May 14, 2026	Exercise	SDRL SEADRILL Ltd Restricted Stock Units	—	-5K -100.00%	0 0.00% of shares	low
May 14, 2026	Exercise	SDRL SEADRILL Ltd Common Shares	—	+5K +201.74%	7,269 0.01% of shares	low