Aaron Paul Diefenthaler is Treasurer & CHIEF INVEST. OFF. at RLI CORP (RLI). They have made 5 open-market trades across 1 company since 2012, most recently 2025-11-25.
CIK 0001540227
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 $105K since 2012, against 1 sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| RLI | 84,138 | $5.1M |
Shares reported on the most recent Form 4, priced at the 2025-11-26 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| RLI | SELL | 2018-01-29 | 2018-01-30 | $64.77 | $58K | -5.9% | -5.8% | -2.1% |
| RLI | BUY | 2012-07-23 | 2012-07-23 | $62.40 | $31K | -1.5% | -1.5% | -1.5% |
| RLI | BUY | 2012-06-01 | 2012-06-01 | $65.85 | $33K | -1.5% | -1.5% | -1.5% |
| RLI | BUY | 2012-04-23 | 2012-04-23 | $67.50 | $34K | -1.5% | -1.5% | -1.5% |
| RLI | BUY | 2012-02-23 | 2012-02-23 | $70.75 | $7K | -1.5% | -1.5% | -1.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.