What the executives and directors of Centene Corporation actually did with their own shares, decoded from three years of SEC Form 4 filings.
The tape: three years of insider trades
Every marker sits at the exact price reported on the Form 4. The line is the monthly median of all prices insiders reported, so the chart needs no market feed; the gray strip is routine flow (vestings, tax withholding, gifts) that headlines love to miscount as selling.
Where the shares went, last 12 months
Every Form 4 movement decomposed: what flowed in (grants, vested equity, purchases) and what flowed out (tax withholding, plan sales, discretionary sales, gifts). Counted in shares, because grants carry no price.
Skin in the game
Directly held shares as reported after each trade, indexed to 100 five years back. Direct holdings only: trust and family-entity positions are per-entity in the filings and do not sum honestly, so this chart refuses to guess. The steps are the trades.
Who holds what
| Insider | Role | Shares held | Buys 12 m | Sales 12 m |
|---|---|---|---|---|
| LONDON SARAH Chief Executive Officer | CEO | 1.2M | $490K | — |
| Asher Andrew Lynn Chief Financial Officer | CFO | 748K | — | — |
| EPPINGER FREDERICK H | Director | 369.5K | — | — |
| KOSTER CHRISTOPHER Secretary & General Counsel | Officer | 352.8K | — | — |
| FASOLA KENNETH J President | Officer | 286.1K | — | — |
| Burdick Kenneth A | Director | 283.6K | — | $7.7M |
| SMITH SUSAN RAYE Chief Operating Officer | COO | 212.2K | — | — |
| THOMAS DAVID P CEO, Markets and Medicaid | CEO | 132.9K | — | — |
| MCNALLY TANYA M Chief People Officer | Officer | 127.3K | — | — |
| CASSO KATIE Corporate Controller & CAO | Officer | 109.8K | — | — |
| Samuels Theodore R. II | Director | 57.2K | — | — |
| Dallas H James | Director | 49.6K | — | — |
| BLUME JESSICA L. | Director | 32.6K | — | — |
| Greco Thomas | Director | 22.9K | — | — |
Open-market trade log
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| 2026-06-10 | Burdick Kenneth A (Director) | Discretionary sale | 80K | $64.55 | $5.2M |
| 2025-12-04 | Burdick Kenneth A (Director) | Discretionary sale | 32.8K | $39.00 | $1.3M |
| 2025-12-03 | Burdick Kenneth A (Director) | Discretionary sale | 33.2K | $39.04 | $1.3M |
| 2025-08-08 | LONDON SARAH (CEO) | Open-market buy | 19.2K | $25.50 | $490K |
| 2025-07-28 | Samuels Theodore R. II (Director) | Open-market buy | 9,000 | $27.62 | $249K |
| 2024-12-18 | Greco Thomas (Director) | Open-market buy | 17K | $59.75 | $1M |
| 2024-12-16 | COUGHLIN CHRISTOPHER J (Director) | Open-market buy | 10K | $59.44 | $594K |
| 2024-12-16 | Dallas H James (Director) | Open-market buy | 1,693 | $59.01 | $100K |
| 2024-12-16 | BLUME JESSICA L. (Director) | Open-market buy | 250 | $59.48 | $15K |
| 2024-12-13 | Samuels Theodore R. II (Director) | Open-market buy | 5,000 | $58.86 | $294K |
| 2024-11-13 | Asher Andrew Lynn (CFO) | Open-market buy | 17.2K | $58.14 | $1M |
| 2024-11-08 | LONDON SARAH (CEO) | Open-market buy | 4,117 | $60.80 | $250K |
| 2024-05-14 | COUGHLIN CHRISTOPHER J (Director) | Discretionary sale | 878 | $76.75 | $67K |
| 2024-05-13 | FASOLA KENNETH J (Officer) | Discretionary sale | 8,000 | $77.62 | $621K |
| 2024-02-13 | Robinson Lori Jean (Director) | Discretionary sale | 10K | $77.41 | $774K |
| 2024-02-07 | FASOLA KENNETH J (Officer) | Discretionary sale | 3,810 | $75.58 | $288K |
| 2024-02-07 | FASOLA KENNETH J (Officer) | Discretionary sale | 8,190 | $74.83 | $613K |
| 2023-04-27 | Robinson Lori Jean (Director) | Discretionary sale | 1,400 | $66.59 | $93K |
| 2023-03-17 | LONDON SARAH (CEO) | Open-market buy | 30K | $62.60 | $1.9M |
| 2023-02-10 | Asher Andrew Lynn (CFO) | Open-market buy | 3,800 | $71.97 | $273K |
| 2023-02-09 | Asher Andrew Lynn (CFO) | Open-market buy | 3,000 | $71.89 | $216K |
| 2023-02-08 | MURRAY JAMES E (COO) | Open-market buy | 6,750 | $73.30 | $495K |
| 2023-02-08 | Samuels Theodore R. II (Director) | Open-market buy | 7,000 | $71.88 | $503K |
| 2022-07-29 | BAGLEY SHANNON (Officer) | Discretionary sale | 9,000 | $92.21 | $830K |
| 2022-07-28 | Robinson Lori Jean (Director) | Discretionary sale | 1,200 | $92.77 | $111K |
| 2022-07-08 | GEPHARDT Richard A (Director) | Discretionary sale | 4,480 | $88.00 | $394K |
| 2022-06-23 | GEPHARDT Richard A (Director) | Discretionary sale | 10.2K | $84.03 | $859K |
| 2022-06-21 | GEPHARDT Richard A (Director) | Discretionary sale | 3,300 | $80.01 | $264K |
| 2022-04-29 | COUGHLIN CHRISTOPHER J (Director) | Open-market buy | 12K | $81.37 | $976K |
| 2022-04-29 | Dallas H James (Director) | Open-market buy | 3,065 | $81.75 | $251K |
| 2022-04-29 | BAGLEY SHANNON (Officer) | Discretionary sale | 8,000 | $80.99 | $648K |
| 2022-04-28 | Samuels Theodore R. II (Director) | Open-market buy | 6,270 | $80.94 | $507K |
| 2022-03-24 | BROOKS MARK J (Officer) | Discretionary sale | 3,690 | $82.71 | $305K |
| 2022-01-20 | BROOKS MARK J (Officer) | Discretionary sale | 2,774 | $80.00 | $222K |
| 2022-01-11 | THOMAS DAVID P (Officer) | Discretionary sale | 4,000 | $77.61 | $310K |
| 2021-12-21 | TONEY COLIN A (Officer) | Discretionary sale | 2,807 | $82.94 | $233K |
| 2021-12-15 | AYALA ORLANDO (Director) | Discretionary sale | 7,586 | $82.99 | $630K |
| 2021-12-14 | NEIDORFF MICHAEL F (CEO) | Discretionary sale | 23K | $80.11 | $1.8M |
| 2021-12-14 | NEIDORFF MICHAEL F (CEO) | Discretionary sale | 27K | $79.37 | $2.1M |
| 2021-12-14 | CASSO KATIE (Officer) | Discretionary sale | 8,000 | $79.19 | $634K |
| 2021-11-10 | ROBERTS JOHN R (Director) | Discretionary sale | 20K | $75.04 | $1.5M |
| 2021-11-01 | LAYTON BRENT D (COO) | Discretionary sale | 3,923 | $70.64 | $277K |
| 2021-10-28 | NEIDORFF MICHAEL F (CEO) | Discretionary sale | 20K | $70.09 | $1.4M |
| 2021-10-28 | AYALA ORLANDO (Director) | Discretionary sale | 8,430 | $70.17 | $592K |
| 2021-10-28 | GEPHARDT Richard A (Director) | Discretionary sale | 20.2K | $70.00 | $1.4M |
| 2021-10-28 | BROOKS MARK J (Officer) | Discretionary sale | 8,296 | $70.17 | $582K |
| 2021-10-28 | LAYTON BRENT D (COO) | Discretionary sale | 77 | $70.17 | $5K |
| 2021-10-28 | KOSTER CHRISTOPHER (Officer) | Discretionary sale | 14.3K | $70.17 | $1M |
| 2021-10-11 | GEPHARDT Richard A (Director) | Discretionary sale | 3,300 | $64.13 | $212K |
| 2021-07-29 | AYALA ORLANDO (Director) | Discretionary sale | 9,366 | $70.00 | $656K |
| 2021-07-29 | LAYTON BRENT D (Officer) | Discretionary sale | 4,000 | $70.00 | $280K |
| 2021-06-15 | AYALA ORLANDO (Director) | Discretionary sale | 30K | $69.01 | $2.1M |
| 2021-06-11 | Hunter Jesse N (Officer) | Discretionary sale | 25K | $71.17 | $1.8M |
| 2021-05-07 | ROBERTS JOHN R (Director) | Discretionary sale | 5,000 | $70.00 | $350K |
| 2021-05-07 | Schwaneke Jeffrey A. (Officer) | Discretionary sale | 18K | $69.00 | $1.2M |
| 2021-05-07 | BROOKS MARK J (Officer) | Discretionary sale | 15K | $68.00 | $1M |
| 2021-05-05 | LAYTON BRENT D (Officer) | Discretionary sale | 7,682 | $65.00 | $499K |
| 2021-04-29 | AYALA ORLANDO (Director) | Discretionary sale | 7,201 | $60.00 | $432K |
| 2021-03-19 | ROBERTS JOHN R (Director) | Discretionary sale | 5,000 | $65.00 | $325K |
| 2021-02-26 | DITMORE ROBERT K (Director) | Open-market buy | 170 | $58.45 | $10K |
“Since trade” compares with the latest insider-implied price, not a market quote; this site carries no market data by design.
Filing hygiene
How to read this
A Form 4 transaction code decides everything. P is an open-market purchase and S an open-market sale; those two are the only codes where an insider chose to trade. A is a grant, M an option exercise or vesting, F shares withheld to cover tax, G a gift. Most “insiders dumped billions” headlines are code F and M mechanics.
Sales flagged 10b5-1 run on a plan the insider adopted in advance; since 2023 every Form 4 carries that flag. Buys have historically predicted returns, sales mostly have not, and this page states filings, not advice.