Joseph P. Platt Jr. is Director at GREENLIGHT CAPITAL RE, LTD. (GLRE). They have made 10 open-market trades across 2 companies since 2008, most recently 2026-08-07.
CIK 0001399967
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.
2 open-market purchases totalling $116K since 2008, against 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CEIX | 35,690 | $3.6M |
| CNR | 40,648 | $3.3M |
| GLRE | 177,611 | $2.9M |
| CNX | 9,561 | $344K |
| Total | $10.1M |
Shares reported on the most recent Form 4, priced at the 2026-08-07 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 |
|---|---|---|---|---|---|---|---|---|
| GLRE | SELL | 2026-05-26 | 2026-05-27 | $16.87 | $198K | -4.3% | +3.7% | -3.8% |
| GLRE | SELL | 2026-05-19 | 2026-05-20 | $18.01 | $425K | -15.2% | -9.5% | -11.3% |
| GLRE | SELL | 2026-05-14 | 2026-05-18 | $17.50 | $210K | -12.2% | -9.4% | -13.6% |
| GLRE | SELL | 2026-05-12 | 2026-05-14 | $17.50 | $134K | -5.2% | -7.1% | -10.2% |
| GLRE | BUY | 2025-11-18 | 2025-11-19 | $12.97 | $65K | +6.0% | +11.5% | +11.0% |
| CEIX | SELL | 2023-09-15 | 2023-09-19 | $98.33 | $2.0M | +6.7% | +8.3% | -2.8% |
| CEIX | SELL | 2022-05-23 | 2022-05-25 | $51.40 | $1.3M | +11.7% | -2.7% | +42.4% |
| GLRE | SELL | 2012-05-15 | 2012-05-15 | $25.00 | $23K | -6.8% | +4.0% | +4.0% |
| GLRE | SELL | 2012-05-10 | 2012-05-14 | $25.06 | $478K | -6.8% | +4.0% | +4.0% |
| GLRE | BUY | 2008-12-03 | 2008-12-05 | $10.20 | $51K | -6.8% | +4.0% | +4.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.