James B. Weissman is COO & VP at Dicerna Pharmaceuticals Inc (DRNA). They have made 25 open-market trades across 1 company since 2014, most recently 2024-07-24.
CIK 0001598480
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 $31K since 2014, against 23 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DRNA | SELL | 2021-07-06 | 2021-07-08 | $39.09 | $1.2M | +4.6% | -37.7% | -49.6% |
| DRNA | SELL | 2021-04-16 | 2021-04-20 | $29.99 | $294K | +3.4% | -3.0% | +27.4% |
| DRNA | SELL | 2021-02-05 | 2021-02-08 | $26.99 | $386K | -2.0% | -7.1% | -7.5% |
| DRNA | SELL | 2021-01-11 | 2021-01-12 | $23.99 | $91K | +7.7% | +9.3% | +9.3% |
| DRNA | SELL | 2020-12-01 | 2020-12-03 | $25.21 | $220K | -1.7% | -8.6% | +20.1% |
| DRNA | SELL | 2020-11-02 | 2020-11-03 | $20.95 | $91K | +5.3% | +13.7% | +5.0% |
| DRNA | SELL | 2020-10-15 | 2020-10-19 | $20.20 | $176K | +6.7% | +13.4% | +16.7% |
| DRNA | SELL | 2020-08-03 | 2020-08-05 | $22.41 | $163K | -10.7% | -22.2% | -1.3% |
| DRNA | SELL | 2020-07-01 | 2020-09-04 | $26.47 | $196K | +17.1% | +16.1% | +47.5% |
| DRNA | SELL | 2020-06-01 | 2020-06-02 | $21.06 | $184K | -6.1% | +20.2% | -13.3% |
| DRNA | SELL | 2020-05-04 | 2020-05-06 | $20.20 | $88K | +5.5% | -9.1% | +0.6% |
| DRNA | SELL | 2020-04-13 | 2020-04-14 | $20.20 | $88K | +12.0% | +8.6% | +18.8% |
| DRNA | SELL | 2020-03-02 | 2020-03-03 | $20.61 | $180K | -17.8% | -8.2% | +4.3% |
| DRNA | SELL | 2020-02-03 | 2020-02-04 | $20.20 | $88K | +6.6% | -1.9% | +4.2% |
| DRNA | SELL | 2020-01-02 | 2020-01-03 | $21.88 | $191K | -3.7% | -7.4% | -13.6% |
| DRNA | SELL | 2019-12-02 | 2019-12-03 | $26.00 | $520K | +3.2% | -15.1% | -21.4% |
| DRNA | SELL | 2019-11-18 | 2019-11-20 | $23.00 | $920K | +9.5% | -1.5% | -13.9% |
| DRNA | SELL | 2019-11-14 | 2019-11-15 | $20.00 | $400K | +14.2% | +27.9% | +2.1% |
| DRNA | SELL | 2019-10-31 | 2019-11-01 | $18.00 | $270K | +10.1% | +51.3% | +11.2% |
| DRNA | SELL | 2019-08-23 | 2019-08-23 | $13.07 | $384K | +11.4% | +13.6% | +79.1% |
| DRNA | SELL | 2019-04-02 | 2019-04-04 | $15.00 | $225K | -3.0% | -11.2% | -0.1% |
| DRNA | SELL · 10b5-1 | 2018-09-05 | 2018-09-06 | $17.50 | $40K | +16.0% | -2.7% | -4.4% |
| DRNA | SELL | 2018-05-09 | 2018-05-11 | $15.00 | $150K | -5.6% | -13.5% | +0.0% |
| DRNA | SELL | 2018-04-20 | 2018-04-24 | $13.00 | $117K | +13.9% | +15.4% | +6.4% |
| DRNA | SELL · 10b5-1 | 2018-03-19 | 2018-03-21 | $13.00 | $13K | -16.2% | +10.1% | +14.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.