Lawrence C. Karlson is Director at CDI CORP (CDI). They have made 7 open-market trades across 3 companies since 2006, most recently 2025-06-02.
CIK 0001216454
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.
6 open-market purchases totalling $503K since 2006, against 1 sale. Across 5 scored buys the stock is up 11.9% at ninety days, and 8.2 points ahead of the S&P over the same stretch.
5 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 60% | 60% | 60% |
| Avg Move | -3.0% | +6.4% | +11.9% |
| Alpha | +1.0% | +5.1% | +8.2% |
| Scored | 5 | 5 | 5 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| HEES | SELL | 2024-03-21 | 2024-03-21 | $60.99 | $1.0M | +0.6% | -9.8% | -31.1% |
| HEES | BUY | 2020-05-12 | 2020-05-12 | $13.88 | $40K | +13.9% | +31.3% | +58.8% |
| HEES | BUY | 2014-12-08 | 2014-12-09 | $30.00 | $100K | -16.0% | +0.8% | +0.8% |
| CPB | BUY | 2010-05-26 | 2010-05-26 | $35.03 | $35K | +1.7% | -0.5% | -0.5% |
| CPB | BUY | 2010-02-24 | 2010-02-24 | $33.29 | $33K | +1.7% | -0.5% | -0.5% |
| CDI | BUY | 2006-08-01 | 2006-08-01 | $19.56 | $196K | N/A | N/A | N/A |
| HEES | BUY | 2006-02-03 | 2006-02-06 | $18.00 | $99K | -16.0% | +0.8% | +0.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.