Lawrence Michael Ziemba is VP at Phillips 66 (PSX). They have made 5 open-market trades across 2 companies since 2014, most recently 2026-08-14.
CIK 0001547334
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.
0 open-market purchases, against 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PSX | 41,898 | $12.3M |
| PAGP | 95,180 | $2.6M |
| PBF | 21,016 | $1.8M |
| PBFX | 4,723 | $94K |
| Total | $16.8M |
Shares reported on the most recent Form 4, priced at the 2026-08-17 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PAA | SELL | 2026-06-29 | 2026-06-30 | $21.95 | $51K | +5.7% | +11.5% | +10.1% |
| PSX | SELL | 2016-12-02 | 2016-12-05 | $85.24 | $17.4M | +1.7% | +2.5% | -7.5% |
| PSX | SELL | 2016-11-08 | 2016-11-10 | $80.20 | $5.8M | +2.4% | +5.3% | -4.9% |
| PSX | SELL | 2015-11-04 | 2015-11-06 | $93.38 | $7.0M | -7.3% | -1.4% | -1.6% |
| PSX | SELL | 2014-02-26 | 2014-02-26 | $77.40 | $2.1M | -7.3% | -1.4% | -1.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.