John D. Chandler is Senior VP & CFO at MAGELLAN MIDSTREAM PARTNERS LP (MMP). They have made 9 open-market trades across 5 companies since 2010, most recently 2026-05-26.
CIK 0001188020
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
8 open-market purchases totalling $1.1M since 2015, against 1 sale. Across 8 scored buys the stock is up 6.7% at ninety days, and 2.0 points ahead of the S&P over the same stretch.
8 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 38% | 75% | 63% |
| Avg Move | -1.3% | +4.6% | +6.7% |
| Alpha | +0.7% | +3.3% | +2.0% |
| Scored | 8 | 8 | 8 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MTRX | BUY | 2025-09-16 | 2025-09-17 | $12.74 | $29K | -1.5% | -1.6% | -5.2% |
| LXU | BUY | 2025-05-05 | 2025-05-06 | $6.57 | $53K | +8.9% | +17.4% | +17.7% |
| MTRX | BUY | 2021-12-21 | 2021-12-21 | $6.79 | $48K | +11.7% | +5.6% | +26.2% |
| MTRX | BUY | 2021-09-23 | 2021-09-23 | $9.92 | $50K | +4.7% | +0.5% | -31.7% |
| WMB | BUY | 2020-03-09 | 2020-03-10 | $15.07 | $196K | -26.7% | +5.5% | +37.2% |
| WMB | BUY | 2019-08-07 | 2019-08-07 | $23.24 | $465K | -0.2% | +2.2% | -2.8% |
| WMB | BUY | 2018-11-02 | 2018-11-02 | $25.94 | $259K | -4.4% | -0.7% | +4.0% |
| CNNX | BUY | 2015-03-11 | 2015-03-12 | $19.99 | $40K | -3.2% | +8.3% | +8.3% |
| MMP | SELL | 2010-06-10 | 2010-06-11 | $41.42 | $2.5M | -4.7% | +1.0% | +1.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| GPP |
| 5,003 |
| $62K |
| MGG | 94,722 | — |
| Total | $31.4M |
Shares reported on the most recent Form 4, priced at the 2026-05-27 close. 1 holding could not be priced and is excluded from the total.