Insiders / Matsumoto Oki

Matsumoto Oki

CIK 1522658personinsider

Companies

First seen

Mar 18, 2026

Last activity

Jun 23, 2026

Companies

Company	Role	Shares held	Peak held	Trades	Latest
Mastercard Inc · MA	Director	8,594	8,692	2	—
Coincheck Group N.V. · CNCK	Director	—	—	0	—

1 position · latest reported per filing

Company	Security	Shares	As of
Mastercard Inc	Class A Common Stock	8,594	Jun 21, 2026

InsidersInstitutions

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

Date	Action	Company	Value	Shares Δ	Position after	Impact
Jun 21, 2026	Other	MA Mastercard Inc Class A Common Stock	$48.3K	-98 -1.13%	8,594 <0.01% of shares	low
Jun 16, 2026	Grant	MA Mastercard Inc Class A Common Stock	$0	+509 +6.22%	8,692 <0.01% of shares	low