Mary S. Muchoney is Secretary at LITTELFUSE INC /DE (LFUS). They have made 7 open-market trades across 1 company since 2013, most recently 2026-09-03.
CIK 0000889331
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 7 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| LFUS | 5,101 | $2.0M |
Shares reported on the most recent Form 4, priced at the 2026-09-08 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| LFUS | SELL | 2016-11-18 | 2016-11-22 | $150.00 | $75K | +1.1% | +4.0% | +11.5% |
| LFUS | SELL | 2016-08-29 | 2016-08-30 | $126.75 | $253K | -2.4% | -0.2% | +17.7% |
| LFUS | SELL | 2016-02-08 | 2016-02-09 | $106.95 | $107K | +4.0% | +7.1% | +2.0% |
| LFUS | SELL | 2015-05-04 | 2015-05-06 | $96.16 | $131K | -8.3% | -2.5% | -2.5% |
| LFUS | SELL · 10b5-1 | 2014-12-09 | 2014-12-10 | $100.00 | $100K | -8.3% | -2.5% | -2.5% |
| LFUS | SELL · 10b5-1 | 2014-07-01 | 2014-07-03 | $95.00 | $95K | -8.3% | -2.5% | -2.5% |
| LFUS | SELL | 2014-06-04 | 2014-06-06 | $85.50 | $162K | -8.3% | -2.5% | -2.5% |
| LFUS | SELL | 2013-11-13 | 2013-11-15 | $85.00 | $136K | -8.3% | -2.5% | -2.5% |
| LFUS | SELL | 2013-05-03 | 2013-05-07 | $69.05 | $161K | -8.3% | -2.5% | -2.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.