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CNC Centene Corporation

Insider figures are trailing 90 days, open-market Form 4 only. Institutional figures are the latest reported quarter. These windows are not simultaneous.

-$6.9M net selling - trailing 90 days

0 buyers - 1 unique sellers

Historical context: No open-market activity in Sep 2026 — insiders traded in 7 of the last 24 months

Institutional activity: not available - insufficient comparable institutions for the latest complete quarter.

open-market Form 4 only - grants, exercises, tax withholding excluded. ~ derived from SEC-reported shares x price.

Insider net $ (monthly)open-market Form 4 only - grants, exercises, tax withholding excluded$10.0M$5.0M$0-$5.0M-$10.0M2024-10 $02024-11 $1.3M2024-12 $2.0M2025-01 $02025-02 $02025-03 $02025-04 $02025-05 $02025-06 $02025-07 $249K2025-08 $490K2025-09 $02025-10 $02025-11 $02025-12 -$2.6M2026-01 $02026-02 $02026-03 $02026-04 $02026-05 $02026-06 -$5.2M2026-07 $02026-08 -$6.9M2026-09 $0Oct 24Dec 24Feb 25Apr 25Jun 25Aug 25Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26~ derived from SEC-reported shares x price. Hatched: excluded (implausible price) or unpriced.

Institutional activity: not available - insufficient comparable institutions for the latest complete quarter.

Who is responsible

Insider Role Net activity Rows
KOSTER CHRISTOPHER Secretary & General Counsel -~$6.9M 2

Transactions

Date Insider Role Type Shares Price Value
August 26, 2026 KOSTER CHRISTOPHER Secretary & General Counsel S -56500 66.9 ~$3.8M
August 18, 2026 KOSTER CHRISTOPHER Secretary & General Counsel S -47603 65.36 ~$3.1M
June 10, 2026 Burdick Kenneth A — S -80000 64.55 ~$5.2M
December 4, 2025 Burdick Kenneth A — S -32796 39 ~$1.3M
December 3, 2025 Burdick Kenneth A — S -33211 39.04 ~$1.3M
August 8, 2025 LONDON SARAH Chief Executive Officer P 19230 25.5 ~$0.5M
July 28, 2025 Samuels Theodore R. II — P 9000 27.62 ~$0.2M
December 18, 2024 Greco Thomas — P 17000 59.75 ~$1.0M
December 16, 2024 COUGHLIN CHRISTOPHER J — P 10000 59.44 ~$0.6M
December 16, 2024 BLUME JESSICA L. — P 250 59.48 ~$15K
December 16, 2024 Dallas H James — P 1693 59.01 ~$100K
December 13, 2024 Samuels Theodore R. II — P 5000 58.86 ~$0.3M
November 13, 2024 Asher Andrew Lynn Chief Financial Officer P 17200 58.14 ~$1.0M
November 8, 2024 LONDON SARAH Chief Executive Officer P 4117 60.8 ~$0.3M