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Centene stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+87.9% to $69.74
Centene (CNC) stock rose 88% over the last 252 sessions, to $69.74. On the way it reported 0 quarters, its insiders filed 2 open-market trades and 4 Form 144 notices of planned sales, and the company filed 5 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Aug 26, 2026 | Form 144 | Form 144: Christopher Koster plans to sell $3.8M | +0.7% (+0.7% vs SPY) | +0.3% (+0.9% vs SPY) | −4.9% (−5.3% vs SPY) |
| Aug 26, 2026 | Form 144 | Form 144: Kenneth Burdick plans to sell $2.8M | +0.7% (+0.7% vs SPY) | +0.3% (+0.9% vs SPY) | −4.9% (−5.3% vs SPY) |
| Aug 26, 2026 | Insider sale | Koster Christopher sold $3.8M | +0.7% (+0.7% vs SPY) | +0.3% (+0.9% vs SPY) | −4.9% (−5.3% vs SPY) |
| Aug 18, 2026 | Form 144 | Form 144: Christopher Koster plans to sell $3.1M | +1.3% (+1.9% vs SPY) | +1.9% (+3.1% vs SPY) | +2.4% (+4.9% vs SPY) |
| Aug 18, 2026 | Insider sale | Koster Christopher sold $3.1M | +1.3% (+1.9% vs SPY) | +1.9% (+3.1% vs SPY) | +2.4% (+4.9% vs SPY) |
| Aug 17, 2026 | 8-K | Directors and officers: departures, appointments, pay | −4.6% (−4.2% vs SPY) | −3.7% (−2.3% vs SPY) | +0.3% (+2.7% vs SPY) |
| Aug 5, 2026 | Form 144 | Form 144: Kenneth Burdick plans to sell $6.8M | +4.5% (+4.7% vs SPY) | +1.3% (+1.4% vs SPY) | +5.0% (+5.8% vs SPY) |
| Jul 28, 2026 | 8-K | Directors and officers: departures, appointments, pay | −3.3% (−1.8% vs SPY) | +0.3% (−3.8% vs SPY) | +2.4% (−1.0% vs SPY) |
| Jun 22, 2026 | 8-K | Directors and officers: departures, appointments, pay | −0.9% (+0.6% vs SPY) | +1.3% (+1.8% vs SPY) | +3.4% (+3.0% vs SPY) |
| May 15, 2026 | 8-K | Directors and officers: departures, appointments, pay | −0.1% (0.0% vs SPY) | +1.5% (+0.6% vs SPY) | +5.2% (+3.7% vs SPY) |
| Mar 24, 2026 | 8-K | Directors and officers: departures, appointments, pay | −0.8% (−1.3% vs SPY) | −0.7% (−0.3% vs SPY) | +22.0% (+13.8% vs SPY) |
Insiders’ record here
In the year on the chart, Centene's insiders reported 0 open-market buys ($0) and 2 sales ($6.9M).
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Centene: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.