Transaction · 0001071739-26-000065

KOSTER CHRISTOPHER

KOSTER CHRISTOPHER, SECY, GC, reported a transaction classified as withholding at CENTENE CORP involving 9087.000000 shares for an estimated $313047.15. Reported holdings after the transaction were 352835.617000 shares. A 10b5-1 reference was not detected in the stored filing text.

withholdingSEC transaction code FSECY, GC
CNCCENTENE CORP
Filing timeMar 17
Trade dateMar 15, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$34.94
Pre-filing
1mo ago +16.1%1w ago +24.9%1d ago -1.4%
Returns since
7d -5.6%30d +11.6%90d +81.5%180d +86.5%1y +86.5%

CNC price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
CNC since 2026-03-17Filed 172 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
withholding
Code F
Identifier
0001071739-26-000065
Common Stock
Transaction date
Mar 15, 2026
Filed Mar 17, 2026, 12:00 AM · 2d delay
Shares
9.08k sh
$3.44k per share
Estimated value
-$31.3M
Computed from shares × price
Holdings after
352k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership
-12score
Filing-only score

-12

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Secretary & General Counsel

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    Shares withheld for taxes upon vesting of previously-reported grants of restricted stock units.

  2. F2

    Ownership includes 229,874 shares of previously-granted restricted stock units and performance stock units (reported at target level performance) subject to vesting requirements.

  3. F3

    Performance Stock Option granted on December 15, 2021, may become exercisable on or after the third anniversary of the grant date if the closing price of CNC's common stock equals or exceeds $100 per…

  4. F4

    Each share of phantom stock represents the right to receive the fair market value of one share of Centene common stock.

  5. F5

    The phantom stock has no formal expiration date. The phantom stock will be settled in cash or other non-Company securities upon Mr. Koster's termination with the Company or on such other date Mr. Kost…

Original filing · 0001071739-26-000065
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