Randall S. Dearth is President at CALGON CARBON CORPORATION (CCC). They have made 7 open-market trades across 2 companies since 2008, most recently 2026-05-08.
CIK 0001418244
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.
5 open-market purchases totalling $115K since 2008, against 2 sales. Across 5 scored buys the stock is down 1.8% at ninety days, and 2.1 points behind the S&P over the same stretch.
5 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 0% | 0% | 0% |
| Avg Move | -1.8% | -1.8% | -1.8% |
| Alpha | -75.4% | -2.1% | -2.1% |
| Scored | 5 | 5 | 5 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SCL | SELL | 2023-08-28 | 2023-08-29 | $87.20 | $51K | -9.3% | -14.1% | -5.5% |
| CCC | BUY | 2015-08-20 | 2015-08-20 | $15.78 | $40K | -1.8% | -1.8% | -1.8% |
| CCC | SELL | 2015-05-22 | 2015-05-26 | $21.21 | $42K | -1.8% | -1.8% | -1.8% |
| CCC | BUY | 2012-11-30 | 2012-12-03 | $13.51 | $9K | -1.8% | -1.8% | -1.8% |
| CCC | BUY | 2012-08-29 | 2012-08-29 | $13.39 | $40K | -1.8% | -1.8% | -1.8% |
| CCC | BUY | 2008-11-25 | 2008-11-25 | $12.46 | $10K | -1.8% | -1.8% | -1.8% |
| CCC | BUY | 2008-03-20 | 2008-03-24 | $16.00 | $16K | -1.8% | -1.8% | -1.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.