John Lieffrig is VP at MCGRATH RENTCORP (MGRC). They have made 5 open-market trades across 1 company since 2018, most recently 2026-06-26.
CIK 0001681989
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 |
|---|---|---|
| MGRC | 23,551 | $2.7M |
Shares reported on the most recent Form 4, priced at the 2026-06-29 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 |
|---|---|---|---|---|---|---|---|---|
| MGRC | SELL | 2026-06-25 | 2026-06-29 | $125.00 | $313K | -4.2% | -4.1% | -6.0% |
| MGRC | SELL | 2023-05-11 | 2023-05-12 | $90.04 | $298K | -0.6% | +7.6% | +7.7% |
| MGRC | SELL | 2021-06-11 | 2021-06-11 | $84.40 | $143K | -6.8% | -4.3% | -17.4% |
| MGRC | SELL | 2019-05-07 | 2019-05-09 | $63.22 | $472K | -5.7% | -5.3% | +3.0% |
| MGRC | SELL | 2018-11-07 | 2018-11-08 | $54.43 | $140K | -5.4% | -3.6% | -7.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.