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Ownership research

Company ownership

CNC

CENTENE CORP

CNC · SEC CIK 0001071739

Broad multi-source activity

Analysis window: last 120 days.

2 of 4 source families recorded activity between Jun 30, 2026 and Aug 26, 2026.

Activity

Number of distinct filing activity types detected in the last 120 days: institutional 13F, insider Form 4, Schedule 13D/G and Form 144. Form 144 proposals may include scheduled dates up to 90 days ahead.

2 of 4

Filing types detected

Recent events

10

Jun 30 – Aug 26

Insider purchases

A reported event groups related open-market purchase transactions and avoids double-counting joint filers.

$0

Overview Institutions Insiders 13D / 13G Form 144

Insider activity

Reported open-market purchases and sales from Form 4 filings.

0

Purchases

3

Sales

Aug 26, 2026

Sale

KOSTER CHRISTOPHER

Secretary & General Counsel

Common Stock · 1 transaction

$3.78M

56,500 shares

Average price: $66.90

Aug 18, 2026

Sale

KOSTER CHRISTOPHER

Secretary & General Counsel

Common Stock · 1 transaction

$3.11M

47,603 shares

Average price: $65.36

Reserved for a discreet sponsor

Sponsor

Reserved advertising space

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No reported events

Confirmed sales

A matched event links a proposed Form 144 sale with reported Form 4 execution activity.

$6.89M

2 matched events

Jun 10, 2026

Sale

Burdick Kenneth A

Director

Common Stock · 1 transaction

$5.16M

80,000 shares

Average price: $64.55