Transaction · 0001071739-26-000167

Koster Christopher

KOSTER CHRISTOPHER, SECY, GC, reported an open-market or private sale at CENTENE CORP involving 47603.000000 shares for an estimated $3111332.08. Reported holdings after the transaction were 305353.991000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SSECY, GC
CNCCENTENE CORP
Trade date
Aug 18, 2026
Filing date
Aug 19, 2026
View on SEC Insider profile
Estimated value-$3.11MShares × reported price
Shares traded47.6k$65.36 per share
Holdings after305kDirect
% of reported position traded13.49%This security and ownership context
How reported position traded is calculated

Shares sold ÷ (holdings after + shares sold). Estimated position before: 352,956.991 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

CNC price since this filing

Daily closing prices, with the filing date and available return windows
CNC · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago +2.7%1w ago +0.3%1d ago -0.4%
Returns since7d +1.2%30d +0.6%90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001071739-26-000167
Common Stock
Transaction date
Aug 18, 2026
Filed Aug 19, 2026, 08:45 PM · 1d delay
Shares
47,603 sh
$65.36 per share
Estimated value
-$3.11M
Computed from shares × price
Holdings after
305,353.991 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership Large Sale
Filing-only score

+10 points

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

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • timely_filing+4 points

    reporting_delay_days = 1

    Filing reported within two business days of the transaction.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

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

    The weighted average price for this transaction is reported within the form. Shares were sold at prices ranging from $65.28 to $65.45. Full information regarding the number of shares at each price is…

  2. F2

    Updated ownership includes common stock acquired through the Company's Employee Stock Purchase Program.

  3. F3

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

Original filing · 0001071739-26-000167
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