Greg Madison is CEO & President at KERYX BIOPHARMACEUTICALS INC (KERX). They have made 24 open-market trades across 1 company since 2015, most recently 2018-03-20.
CIK 0001114220
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.
2 open-market purchases totalling $137K since 2015, against 22 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| KERX | SELL | 2018-02-15 | 2018-02-16 | $4.81 | $147K | -6.4% | -10.0% | +17.4% |
| KERX | SELL | 2018-01-05 | 2018-01-08 | $4.69 | $5K | +5.2% | -9.1% | -9.3% |
| KERX | SELL | 2017-10-30 | 2017-10-31 | $6.03 | $24K | -26.3% | -26.9% | -25.3% |
| KERX | SELL | 2017-10-05 | 2017-10-06 | $7.19 | $6K | -12.8% | -17.6% | -37.8% |
| KERX | SELL | 2017-07-31 | 2017-08-01 | $7.14 | $29K | -8.3% | +3.0% | -11.1% |
| KERX | SELL | 2017-07-05 | 2017-07-06 | $7.67 | $7K | -2.5% | -15.1% | -8.7% |
| KERX | SELL | 2017-05-01 | 2017-05-03 | $5.97 | $25K | +4.8% | +4.2% | +12.5% |
| KERX | SELL | 2017-04-05 | 2017-04-06 | $5.80 | $5K | +2.7% | +22.6% | +39.8% |
| KERX | SELL | 2017-02-09 | 2017-02-13 | $5.47 | $9K | -8.7% | +3.8% | +19.1% |
| KERX | SELL | 2017-01-30 | 2017-01-31 | $4.65 | $170K | +8.8% | -4.4% | +18.8% |
| KERX | SELL | 2017-01-05 | 2017-01-06 | $6.16 | $7K | -11.9% | -15.5% | -13.3% |
| KERX | SELL | 2016-11-09 | 2016-11-14 | $4.99 | $8K | -0.6% | -10.2% | -11.6% |
| KERX | SELL | 2016-10-05 | 2016-10-06 | $5.38 | $5K | -17.9% | -12.8% | +13.3% |
| KERX | SELL | 2016-08-09 | 2016-08-11 | $4.22 | $7K | +9.8% | +8.4% | +27.2% |
| KERX | SELL | 2016-07-05 | 2016-07-06 | $6.66 | $6K | +4.9% | -35.4% | -22.6% |
| KERX | SELL | 2016-05-09 | 2016-05-10 | $5.42 | $10K | +6.5% | +12.2% | -21.9% |
| KERX | SELL | 2016-04-05 | 2016-04-07 | $4.50 | $5K | -0.6% | +6.0% | +33.5% |
| KERX | SELL | 2016-02-09 | 2016-02-10 | $3.23 | $6K | +5.4% | +53.2% | +72.6% |
| KERX | SELL | 2016-01-06 | 2016-01-06 | $4.83 | $21K | -25.6% | -16.7% | +10.3% |
| KERX | SELL | 2015-11-09 | 2015-11-12 | $5.18 | $8K | -32.6% | -1.8% | -34.2% |
| KERX | BUY | 2015-08-20 | 2015-08-24 | $5.69 | $57K | -32.6% | -1.8% | -1.8% |
| KERX | SELL | 2015-08-10 | 2015-08-12 | $6.07 | $10K | -32.6% | -1.8% | -1.8% |
| KERX | BUY | 2015-03-06 | 2015-03-11 | $12.53 | $80K | -32.6% | -1.8% | -1.8% |
| KERX | SELL | 2015-02-09 | 2015-02-10 | $10.95 | $74K | -32.6% | -1.8% | -1.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.