Thomas E. Mistler is Director at II-VI INC (IIVI). They have made 29 open-market trades across 2 companies since 2006, most recently 2026-08-31.
CIK 0000820318
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 totalling $93K since 2016, against 29 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| IIVI | 19,634 | $4.5M |
| COHR | 19,510 | $3.3M |
| Total | $7.8M |
Shares reported on the most recent Form 4, priced at the 2026-09-02 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 |
|---|---|---|---|---|---|---|---|---|
| COHR | SELL · 10b5-1 | 2026-08-31 | 2026-09-02 | $276.88 | $629K | +1.6% | +26.3% | — |
| COHR | SELL · 10b5-1 | 2026-08-31 | 2026-09-02 | $276.85 | $629K | +1.6% | +26.3% | — |
| COHR | SELL | 2026-03-06 | 2026-09-02 | $241.50 | $945K | +1.6% | +26.3% | N/A |
| IIVI | SELL | 2016-08-23 | 2016-08-23 | $21.55 | $93K | -0.3% | +8.3% | +39.3% |
| IIVI | BUY | 2016-08-23 | 2016-08-26 | $21.55 | $93K | +5.6% | +9.0% | +46.9% |
| IIVI | SELL | 2016-08-23 | 2016-08-23 | $21.55 | $93K | -0.3% | +8.3% | +39.3% |
| IIVI | SELL | 2016-06-06 | 2016-06-06 | $20.50 | $103K | -1.7% | -11.0% | +5.7% |
| IIVI | SELL | 2016-05-27 | 2016-06-01 | $20.00 | $70K | -1.7% | -8.3% | +5.2% |
| IIVI | SELL · Routine | 2016-05-24 | 2016-05-26 | $20.00 | $31K | +5.1% | -8.9% | +9.7% |
| IIVI | SELL | 2016-05-19 | 2016-05-24 | $19.62 | $98K | +3.2% | -1.0% | +8.4% |
| IIVI | SELL | 2015-11-04 | 2015-11-06 | $18.21 | $291K | -8.9% | -3.3% | +11.3% |
| IIVI | SELL | 2015-11-03 | 2015-11-04 | $18.23 | $160K | -8.9% | -3.3% | +12.0% |
| IIVI | SELL | 2014-12-30 | 2015-01-02 | $14.00 | $112 | -8.9% | -3.3% | -3.3% |
| IIVI | SELL | 2014-12-24 | 2014-12-29 | $13.97 | $176K | -8.9% | -3.3% | -3.3% |
| IIVI | SELL | 2014-12-18 | 2014-12-19 | $14.00 | $56K | -8.9% | -3.3% | -3.3% |
| IIVI | SELL | 2014-12-16 | 2014-12-17 | $13.63 | $14K | -8.9% | -3.3% | -3.3% |
| IIVI | SELL | 2014-12-11 | 2014-12-12 | $14.00 | $56K | -8.9% | -3.3% | -3.3% |
| IIVI | SELL | 2014-12-01 | 2014-12-02 | $13.48 | $89K | -8.9% | -3.3% | -3.3% |
| IIVI | SELL | 2014-11-26 | 2014-12-01 | $13.61 | $27K | -8.9% | -3.3% | -3.3% |
| IIVI | SELL | 2013-08-12 | 2013-08-13 | $19.50 | $585K | -8.9% | -3.3% | -3.3% |
| IIVI | SELL | 2013-02-14 | 2013-02-15 | $17.71 | $262K | -8.9% | -3.3% | -3.3% |
| IIVI | SELL | 2013-01-25 | 2013-01-28 | $17.55 | $70K | -8.9% | -3.3% | -3.3% |
| IIVI | SELL | 2012-02-01 | 2012-02-02 | $23.27 | $419K | -8.9% | -3.3% | -3.3% |
| IIVI | SELL | 2010-12-08 | 2010-12-09 | $44.01 | $169K | -8.9% | -3.3% | -3.3% |
| IIVI | SELL | 2010-12-07 | 2010-12-08 | $44.02 | $271K | -8.9% | -3.3% | -3.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.