FORM4API
ExploreSearch any ticker for its insider tradesFilingsThe newest Form 4 filings, market-wideForm 144Intent to sell, filed before the trade13F FilersInstitutional 13F-HR filers by AUMSignalsCluster buy & sell signalsScreenerFilter trades by code, size & returnCongressSTOCK Act trades disclosed by Congress
PricingDocs
SEC Form 4 explainedSEC Form 144 explained13F-HR filings explainedCluster buy signals10b5-1 trading plans
All guides →
Sign inGet a key

Company profile

Centene Corp Insider Trading

CNC

Every SEC Form 4 insider trading filing for Centene Corp (CNC) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?

Exchange
NYSE
Sector
Hospital & Medical Service Plans
CIK
0001071739
Filings
211
Insiders
25
Last filing
2026-09-15
SEC EDGAR ↗Yahoo Finance ↗Finviz ↗Stock Analysis ↗

Activity summary

Recent insider activity is bearish. Over the last 30 days, insiders net sold $3.9M across 2 transactions.

Three year balance

Buy and sell value by quarter, Q4 23 to Q3 26. Centene Corp insiders are net sellers across the period shown.

PurchasesSales
Q4 23$11.3MQ1 24Q2 24Q3 24Q4 24Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26Q3 26

Bars below the rule are sales, above are purchases. Largest quarter on the chart is $11.3M.

90 day insight

Over the last 90 days, Centene Corp insiders bought $0 (7 transactions) and sold $7.0M (3 transactions).

  • Most active insider: Christopher Koster with 2 transactions totaling $6.9M.
  • Largest single sale: $3.8M by Christopher Koster on Aug 26, 2026.

Activity skews bullish — buys outpace sales.

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValueReturn
Sep 15, 2026Theodore J PienkosCNC
Tax Withholding
1,092$69.41$76KPending
Aug 26, 2026Christopher KosterCNC
Sale
56,500$66.90$3.78M+3.1% 1w
Aug 18, 2026Christopher KosterCNC
Sale
47,603$65.36$3.11M+1.1% 1w
Jul 28, 2026Paul J DiazCNC
Award
2,771——+2.4% 1m
Jul 17, 2026Lauren M TylerCNC
Award
3,155——-0.8% 1m

45 more transactions hidden

Free account · No credit card required

Building something? Get API access →

Query this yourself

The same rows, over the API.

curl "https://api.form4api.com/v1/transactions?ticker=CNC" \
  -H "X-Api-Key: $KEY"
Get a key

Top insiders

By total value filed.

Kenneth A BurdickChief Executive Officer3 filings−$7.7M
Christopher KosterSecretary & General Counsel3 filings−$7.2M
Sarah LondonChief Executive Officer1 filing−$1.2M
Andrew Lynn AsherEVP, CFO1 filing−$525K
Tanya M McNallyChief People Officer3 filings−$165K

Institutional Ownership

Top 13F-HR holders of Centene Corp as of 2026-06-30

↓ decreasing
Total reported AUM
$7.96B
QoQ change
-45.0%
Reporting period
2026-06-30
#1
State Street Corp
CIK 0000093751
$1.41B
22.0M shares
#2
BlackRock, Inc.
CIK 0002012383
$1.09B
17.0M shares
#3
BlackRock, Inc.
CIK 0002012383
$648.9M
10.1M shares

Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

FORM4API

Real-time SEC Form 4, Form 144, 13F-HR and congressional trading data, over a REST API and webhooks.

Data
  • Screener
  • Filings
  • Signals
  • Companies
  • Insiders
  • Congress trades
  • 13F filers
  • Explorer
  • Top insiders
Developers
  • Documentation
  • Insider trading API
  • Python SDK
  • TypeScript SDK
  • MCP server
  • Status
Company
  • Pricing
  • Guides
  • Compare
  • About
  • Data quality
  • Privacy
  • Terms
Form4API, StockholmNot affiliated with the SEC or EDGAR. Data sourced from public EDGAR filings. Not investment advice.

Congressional Trading

Disclosed CNC trades under the STOCK Act

Total trades
20
Purchases
14
Sales
6
Tim Moore
Republican · House · NC
8 buys
1 sell
Gilbert Ray Cisneros, Jr.
Democrat · House · CA
2 buys
2 sells
Robert P. Bresnahan, Jr.
Republican · House · PA
1 buy
1 sell
Julia Letlow
Republican · House · LA
1 buy
1 sell
Jefferson Shreve
Republican · House · IN
1 buy
1 sell
See all 6 members who traded CNC →

Sourced from U.S. House Clerk periodic transaction reports (House coverage only). Trade counts reflect disclosed filings only. The STOCK Act allows up to 45 days between a trade and its disclosure, so this reflects recent disclosures, not real-time trading. Full congressional trading API →

Popular companies on Form4API

Browse insider trading activity for other actively-filed companies.

TEAMAtlassian CorpLEGLeggett & Platt IncVZVerizon Communications IncTPLTexas Pacific Land CorpCRMSalesforce, Inc.RCGRENN Fund, Inc.METAMeta Platforms, Inc.ACNAccenture plcPPGPpg Industries IncNFLXNetflix IncCHDChurch & Dwight Co Inc /de/