Thomas Merk is President at ROFIN SINAR TECHNOLOGIES INC (RSTI). They have made 16 open-market trades across 1 company since 2006, most recently 2019-12-15.
CIK 0001354691
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 $1.3M since 2007, against 10 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| RSTI | SELL | 2015-11-24 | 2015-12-02 | $28.10 | $1.4M | N/A | N/A | N/A |
| RSTI | SELL | 2013-02-22 | 2013-02-22 | $27.29 | $273K | N/A | N/A | N/A |
| RSTI | SELL | 2013-02-11 | 2013-02-11 | $27.76 | $694K | N/A | N/A | N/A |
| RSTI | BUY | 2013-02-11 | 2013-02-11 | $17.11 | $428K | N/A | N/A | N/A |
| RSTI | SELL | 2011-02-16 | 2011-02-17 | $39.56 | $791K | N/A | N/A | N/A |
| RSTI | BUY | 2011-02-16 | 2011-02-17 | $16.36 | $327K | N/A | N/A | N/A |
| RSTI | SELL | 2010-11-10 | 2010-11-10 | $29.50 | $885K | N/A | N/A | N/A |
| RSTI | BUY | 2010-11-10 | 2010-11-10 | $16.36 | $491K | N/A | N/A | N/A |
| RSTI | SELL | 2010-11-08 | 2010-11-08 | $29.22 | $88K | N/A | N/A | N/A |
| RSTI | SELL | 2010-06-04 | 2010-06-07 | $23.84 | $72K | N/A | N/A | N/A |
| RSTI | BUY | 2008-07-01 | 2008-07-01 | $4.90 | $29K | N/A | N/A | N/A |
| RSTI | SELL | 2008-02-04 | 2008-02-05 | $42.70 | $256K | N/A | N/A | N/A |
| RSTI | BUY | 2008-02-04 | 2008-02-05 | $4.90 | $29K | N/A | N/A | N/A |
| RSTI | BUY | 2007-05-09 | 2007-05-09 | $8.75 | $26K | N/A | N/A | N/A |
| RSTI | SELL | 2007-05-09 | 2007-05-09 | $69.00 | $207K | N/A | N/A | N/A |
| RSTI | SELL | 2006-12-07 | 2006-12-08 | $58.04 | $464K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.