Mark W. Frohlich is EVP & R&D and CMO at DENDREON CORP (DNDN). They have made 6 open-market trades across 2 companies since 2009, most recently 2026-05-15.
CIK 0001420482
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 $90K since 2010, against 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| JUNO | SELL | 2016-02-29 | 2016-03-02 | $35.27 | $705K | -5.7% | -9.2% | +1.9% |
| DNDN | SELL · 10b5-1 | 2012-04-23 | 2012-04-24 | $10.56 | $28K | N/A | N/A | N/A |
| DNDN | SELL · 10b5-1 | 2012-01-23 | 2012-01-24 | $13.24 | $43K | N/A | N/A | N/A |
| DNDN | SELL | 2011-11-14 | 2011-11-16 | $7.20 | $54K | N/A | N/A | N/A |
| DNDN | SELL · 10b5-1 | 2011-10-21 | 2011-10-25 | $10.17 | $33K | N/A | N/A | N/A |
| DNDN | SELL · 10b5-1 | 2011-07-21 | 2011-07-25 | $39.13 | $126K | N/A | N/A | N/A |
| DNDN | SELL · 10b5-1 | 2011-05-03 | 2011-05-03 | $40.63 | $731K | N/A | N/A | N/A |
| DNDN | SELL · 10b5-1 | 2011-04-21 | 2011-04-25 | $40.48 | $131K | N/A | N/A | N/A |
| DNDN | SELL · 10b5-1 | 2011-04-14 | 2011-04-18 | $40.00 | $171K | N/A | N/A | N/A |
| DNDN | SELL · 10b5-1 | 2011-01-21 | 2011-01-24 | $35.27 | $79K | N/A | N/A | N/A |
| DNDN | SELL · 10b5-1 | 2011-01-18 | 2011-01-19 | $36.78 | $105K | N/A | N/A | N/A |
| DNDN | SELL | 2010-12-03 | 2010-12-07 | $38.44 | $304K | N/A | N/A | N/A |
| DNDN | SELL · 10b5-1 | 2010-10-18 | 2010-10-19 | $37.68 | $108K | N/A | N/A | N/A |
| DNDN | SELL · 10b5-1 | 2010-08-04 | 2010-08-05 | $40.00 | $171K | N/A | N/A | N/A |
| DNDN | BUY | 2010-07-19 | 2010-07-21 | $31.42 | $90K | N/A | N/A | N/A |
| DNDN | SELL | 2010-04-30 | 2010-05-04 | $54.44 | $2.4M | N/A | N/A | N/A |
| DNDN | SELL · 10b5-1 | 2010-04-06 | 2010-04-07 | $40.00 | $124K | N/A | N/A | N/A |
| DNDN | SELL · 10b5-1 | 2010-03-09 | 2010-03-10 | $36.00 | $176K | N/A | N/A | N/A |
| DNDN | SELL | 2010-02-16 | 2010-02-17 | $32.00 | $42K | N/A | N/A | N/A |
| DNDN | SELL · 10b5-1 | 2009-09-17 | 2009-09-18 | $28.00 | $133K | N/A | N/A | N/A |
| DNDN | SELL · 10b5-1 | 2009-06-02 | 2009-06-08 | $24.00 | $172K | N/A | N/A | N/A |
| DNDN | SELL | 2009-04-30 | 2009-05-01 | $22.00 | $209K | 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.