William N. Thorndike Jr. is Director at CONSOL Energy Inc (CNX). They have made 11 open-market trades across 3 companies since 2013, most recently 2026-05-07.
CIK 0001437827
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.
4 open-market purchases totalling $2.2M since 2015, against 7 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PRM | 8,535,656 | $226.5M |
| CNX | 435,355 | $15.6M |
| LMAT | 5,051 | $408K |
| Total | $242.6M |
Shares reported on the most recent Form 4, priced at the 2026-05-11 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 |
|---|---|---|---|---|---|---|---|---|
| CNX | SELL | 2026-05-04 | 2026-05-06 | $38.25 | $1.1M | +1.7% | -6.6% | -0.8% |
| PRM | SELL | 2026-03-09 | 2026-03-11 | $23.39 | $7.6M | -8.0% | +11.2% | +43.1% |
| PRM | SELL | 2026-03-04 | 2026-03-06 | $24.00 | $7.8M | -5.2% | +7.7% | +32.1% |
| CNX | BUY | 2018-02-12 | 2018-02-13 | $12.80 | $448K | +12.3% | +14.5% | +21.1% |
| CNX | BUY | 2015-11-17 | 2015-11-19 | $7.78 | $233K | -22.7% | +9.5% | +13.3% |
| CNX | BUY | 2015-08-07 | 2015-08-11 | $13.53 | $677K | -22.7% | +9.5% | +9.5% |
| CNX | BUY | 2015-07-30 | 2016-01-19 | $16.88 | $844K | +66.8% | +77.1% | +171.4% |
| LMAT | SELL | 2013-05-07 | 2013-05-08 | $6.04 | $31K | -7.6% | -8.0% | -8.0% |
| LMAT | SELL | 2013-03-11 | 2013-03-13 | $6.00 | $35K | -7.6% | -8.0% | -8.0% |
| LMAT | SELL | 2013-03-07 | 2013-03-11 | $6.00 | $64K | -7.6% | -8.0% | -8.0% |
| LMAT | SELL | 2013-03-01 | 2013-03-06 | $6.04 | $112K | -7.6% | -8.0% | -8.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.