Catherine Corrigan is CEO & President at EXPONENT INC (EXPO). They have made 24 open-market trades across 1 company since 2013, most recently 2026-08-17.
CIK 0001552213
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.
0 open-market purchases, against 24 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| EXPO | 129,108 | $9.3M |
Shares reported on the most recent Form 4, priced at the 2026-08-18 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 |
|---|---|---|---|---|---|---|---|---|
| EXPO | SELL | 2026-08-17 | 2026-08-18 | $66.28 | $113K | +4.6% | -0.4% | — |
| EXPO | SELL | 2026-07-15 | 2026-07-17 | $62.78 | $109K | +5.9% | +6.7% | +16.6% |
| EXPO | SELL | 2026-06-15 | 2026-06-17 | $57.13 | $235K | +0.3% | +7.4% | +15.1% |
| EXPO | SELL | 2026-05-15 | 2026-05-15 | $54.06 | $227K | +6.4% | +4.3% | +24.3% |
| EXPO | SELL | 2026-03-16 | 2026-04-16 | $67.59 | $529K | -2.9% | -16.6% | -10.0% |
| EXPO | SELL | 2026-02-17 | 2026-02-18 | $67.15 | $263K | +5.7% | -4.4% | -18.3% |
| EXPO | SELL | 2026-01-15 | 2026-01-20 | $72.52 | $121K | -2.5% | -5.0% | -7.6% |
| EXPO | SELL | 2025-12-15 | 2025-12-16 | $70.74 | $456K | -3.4% | +0.9% | -9.5% |
| EXPO | SELL | 2025-11-17 | 2025-11-18 | $70.39 | $690K | +6.2% | +6.4% | -0.2% |
| EXPO | SELL | 2025-10-15 | 2025-10-16 | $66.82 | $659K | -0.8% | +1.3% | +6.3% |
| EXPO | SELL | 2025-09-15 | 2025-09-16 | $69.91 | $686K | -0.2% | -2.0% | +7.2% |
| EXPO | SELL | 2025-08-14 | 2025-08-15 | $71.08 | $696K | +5.7% | +0.6% | +1.3% |
| EXPO | SELL | 2018-05-14 | 2018-05-16 | $90.91 | $384K | +3.6% | +6.5% | +9.9% |
| EXPO | SELL | 2018-05-11 | 2018-05-14 | $89.53 | $797K | +5.8% | +8.7% | +11.3% |
| EXPO | SELL | 2016-05-27 | 2016-06-01 | $52.68 | $158K | +2.5% | +7.5% | -5.6% |
| EXPO | SELL | 2016-05-24 | 2016-05-25 | $51.33 | $439K | +5.5% | +6.3% | -4.4% |
| EXPO | SELL | 2016-05-20 | 2016-05-20 | $50.10 | $298K | +7.8% | +12.2% | -0.2% |
| EXPO | SELL | 2016-05-18 | 2016-05-18 | $50.32 | $677K | +8.0% | +10.9% | +4.2% |
| EXPO | SELL | 2016-02-25 | 2016-02-26 | $46.89 | $94K | +1.8% | +5.0% | +11.5% |
| EXPO | SELL | 2015-08-27 | 2015-08-31 | $42.27 | $127K | -8.0% | -1.3% | -1.3% |
| EXPO | SELL | 2014-05-29 | 2014-05-30 | $70.06 | $175K | -8.0% | -1.3% | -1.3% |
| EXPO | SELL | 2013-08-23 | 2013-08-26 | $66.01 | $99K | -8.0% | -1.3% | -1.3% |
| EXPO | SELL | 2013-08-21 | 2013-08-23 | $66.53 | $357K | -8.0% | -1.3% | -1.3% |
| EXPO | SELL | 2013-05-23 | 2013-05-23 | $55.75 | $383K | -8.0% | -1.3% | -1.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.