Thomas Riordan is Executive VP & Chief Admin Ofr at Rockwood Holdings, Inc. (ROC). They have made 22 open-market trades across 4 companies since 2007, most recently 2019-10-07.
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 $590K since 2009, against 16 sales. Across 6 scored buys the stock is up 16.1% at ninety days, and 14.2 points ahead of the S&P over the same stretch.
6 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 33% | 50% | 83% |
| Avg Move | -5.2% | +0.7% | +16.1% |
| Alpha | -46.3% | +0.8% | +14.2% |
| Scored | 6 | 6 | 6 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| VSM | BUY | 2018-12-12 | 2018-12-12 | $29.03 | $174K | -15.3% | -0.4% | +66.3% |
| VSM | BUY | 2018-11-12 | 2018-11-13 | $32.82 | $151K | +1.2% | -12.2% | +11.7% |
| VSM | BUY | 2017-11-16 | 2017-11-17 | $38.90 | $99K | -2.0% | -3.0% | -6.4% |
| MLNX | SELL | 2017-10-31 | 2017-11-02 | $47.45 | $47K | +10.4% | +34.0% | +46.9% |
| VSM | BUY | 2017-05-22 | 2017-05-24 | $31.95 | $10K | +1.6% | +5.5% | +11.0% |
| MLNX | SELL | 2016-06-03 | 2016-06-07 | $47.89 | $48K | -4.4% | -3.1% | -11.9% |
| MOSY | BUY | 2015-03-04 | 2015-03-05 | $1.60 | $150K | -5.7% | +9.5% | +9.5% |
| MLNX | SELL | 2015-02-25 | 2015-02-27 | $46.78 | $187K | -0.1% | -2.0% | -2.0% |
| ROC | SELL | 2014-12-04 | 2014-12-05 | $79.09 | $3.7M | -10.7% | +4.5% | +4.5% |
| ROC | SELL · 10b5-1 | 2014-06-30 | 2014-07-01 | $75.89 | $850K | -10.7% | +4.5% | +4.5% |
| ROC | SELL · 10b5-1 | 2014-05-28 | 2014-05-30 | $76.43 | $796K | -10.7% | +4.5% | +4.5% |
| ROC | SELL · 10b5-1 | 2014-04-28 | 2014-04-29 | $71.22 | $712K | -10.7% | +4.5% | +4.5% |
| ROC | SELL · 10b5-1 | 2014-03-28 | 2014-04-01 | $73.98 | $858K | -10.7% | +4.5% | +4.5% |
| MLNX | SELL | 2014-03-05 | 2014-03-07 | $37.17 | $74K | -0.1% | -2.0% | -2.0% |
| ROC | SELL · 10b5-1 | 2014-02-28 | 2014-03-04 | $79.47 | $862K | -10.7% | +4.5% | +4.5% |
| ROC | SELL | 2013-08-08 | 2013-08-09 | $65.51 | $3.4M | -10.7% | +4.5% | +4.5% |
| ROC | SELL | 2012-12-06 | 2012-12-07 | $46.72 | $309K | -10.7% | +4.5% | +4.5% |
| ROC | SELL | 2012-12-03 | 2012-12-05 | $46.30 | $1.3M | -10.7% | +4.5% | +4.5% |
| MLNX | SELL | 2012-11-27 | 2012-11-29 | $85.80 | $343K | -0.1% | -2.0% | -2.0% |
| MLNX | SELL | 2012-07-26 | 2012-07-30 | $100.47 | $588K | -0.1% | -2.0% | -2.0% |
| MLNX | SELL | 2012-05-07 | 2012-05-09 | $58.06 | $406K | -0.1% | -2.0% | -2.0% |
| ROC | SELL | 2012-03-13 | 2012-03-15 | $50.76 | $1.5M | -10.7% | +4.5% | +4.5% |
| ROC | SELL · 10b5-1 | 2011-05-16 | 2011-05-18 | $50.31 | $3.1M | -10.7% | +4.5% | +4.5% |
| MLNX | SELL | 2011-05-10 | 2011-05-12 | $30.95 | $31K | -0.1% | -2.0% | -2.0% |
| ROC | SELL · 10b5-1 | 2010-07-29 | 2010-07-30 | $28.56 | $2.9M | -10.7% | +4.5% | +4.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.