Michael Mason is VP & Treasurer at ALNYLAM PHARMACEUTICALS, INC. (ALNY). They have made 17 open-market trades across 2 companies since 2012, most recently 2024-09-04.
CIK 0001514291
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, against 17 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| KPTI | SELL | 2024-09-04 | 2024-09-05 | $0.72 | $5K | -5.1% | +10.1% | +0.6% |
| KPTI | SELL | 2024-06-04 | 2024-06-06 | $0.99 | $645 | -1.1% | -16.0% | -24.2% |
| KPTI | SELL | 2024-02-29 | 2024-03-04 | $1.18 | $40K | +1.5% | -2.7% | -25.2% |
| KPTI | SELL | 2024-02-27 | 2024-02-29 | $1.32 | $3K | +21.8% | +32.8% | -19.2% |
| KPTI | SELL | 2024-02-06 | 2024-02-08 | $1.59 | $7K | -19.3% | -1.3% | -32.0% |
| KPTI | SELL | 2023-09-01 | 2023-09-05 | $1.33 | $9K | -7.6% | +0.0% | -33.2% |
| KPTI | SELL | 2023-06-02 | 2023-06-05 | $2.22 | $1K | -8.8% | -27.3% | -44.1% |
| KPTI | SELL | 2023-03-01 | 2023-03-02 | $3.03 | $34K | +14.7% | +29.3% | -26.4% |
| KPTI | SELL | 2023-02-27 | 2023-03-01 | $3.04 | $9K | +13.0% | +26.7% | -27.7% |
| KPTI | SELL | 2023-02-06 | 2023-02-08 | $3.40 | $14K | -2.7% | -8.8% | -24.3% |
| KPTI | SELL | 2022-06-03 | 2022-06-06 | $6.04 | $4K | -25.4% | -6.1% | -8.8% |
| KPTI | SELL | 2022-02-28 | 2022-03-02 | $10.24 | $25K | -3.8% | +27.3% | -0.8% |
| KPTI | SELL | 2022-02-07 | 2022-02-09 | $9.86 | $39K | +19.2% | -26.7% | -32.8% |
| KPTI | SELL | 2021-02-11 | 2021-02-17 | $15.52 | $44K | -8.0% | -19.3% | -37.5% |
| ALNY | SELL | 2018-01-04 | 2018-01-08 | $131.59 | $4.8M | -3.8% | -5.9% | -25.0% |
| ALNY | SELL | 2018-01-04 | 2018-01-08 | $131.81 | $2.6M | -3.8% | -5.9% | -25.0% |
| ALNY | SELL | 2017-05-16 | 2017-05-17 | $70.00 | $656K | -9.0% | +8.0% | +14.1% |
| ALNY | SELL · 10b5-1 | 2015-06-01 | 2015-06-03 | $131.84 | $632K | -18.4% | +0.9% | +0.9% |
| ALNY | SELL · 10b5-1 | 2014-12-15 | 2014-12-16 | $97.50 | $2.2M | -18.4% | +0.9% | +0.9% |
| ALNY | SELL · 10b5-1 | 2014-02-03 | 2014-02-04 | $78.66 | $295K | -18.4% | +0.9% | +0.9% |
| ALNY | SELL · 10b5-1 | 2013-12-16 | 2013-12-18 | $60.36 | $483K | -18.4% | +0.9% | +0.9% |
| ALNY | SELL · 10b5-1 | 2013-12-02 | 2013-12-04 | $61.83 | $232K | -18.4% | +0.9% | +0.9% |
| ALNY | SELL · 10b5-1 | 2013-07-12 | 2013-07-12 | $50.00 | $710K | -18.4% | +0.9% | +0.9% |
| ALNY | SELL · 10b5-1 | 2013-07-01 | 2013-07-02 | $32.00 | $864K | -18.4% | +0.9% | +0.9% |
| ALNY | SELL · 10b5-1 | 2013-06-17 | 2013-06-19 | $29.93 | $707K | -18.4% | +0.9% | +0.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.