William C. Montgomery is Director at ENTERPRISE PRODUCTS PARTNERS L.P. (EPD). They have made 9 open-market trades across 2 companies since 2011, most recently 2026-02-10.
CIK 0001530818
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.
9 open-market purchases totalling $3.3M since 2011, never a sale. Across 9 scored buys the stock is up 3.1% at ninety days, and 1.1 points ahead of the S&P over the same stretch.
9 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 22% | 89% | 89% |
| Avg Move | -11.0% | +2.3% | +3.1% |
| Alpha | -7.3% | +1.2% | +1.1% |
| Scored | 9 | 9 | 9 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| EPD | BUY | 2025-07-30 | 2025-07-30 | $31.55 | $505K | +0.6% | +3.9% | +0.9% |
| EPD | BUY | 2023-08-04 | 2023-08-07 | $26.60 | $1.3M | -0.1% | +0.4% | +0.0% |
| EPD | BUY | 2016-02-11 | 2016-02-11 | $19.69 | $197K | +13.0% | +17.0% | +26.9% |
| EPD | BUY | 2015-12-07 | 2015-12-07 | $21.25 | $213K | -15.2% | -2.3% | -2.3% |
| APA | BUY | 2015-08-26 | 2015-08-27 | $39.90 | $200K | -19.5% | +0.4% | +0.4% |
| APA | BUY | 2013-03-05 | 2013-03-05 | $73.11 | $146K | -19.5% | +0.4% | +0.4% |
| APA | BUY | 2011-12-20 | 2011-12-20 | $88.72 | $177K | -19.5% | +0.4% | +0.4% |
| APA | BUY | 2011-10-19 | 2011-10-19 | $90.00 | $180K | -19.5% | +0.4% | +0.4% |
| APA | BUY | 2011-09-28 | 2011-09-29 | $85.38 | $342K | -19.5% | +0.4% | +0.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.