Peter Barrett is Director at ALNYLAM PHARMACEUTICALS, INC. (ALNY). They have made 11 open-market trades across 4 companies since 2006, most recently 2026-05-07.
CIK 0001291895
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 $3.3M since 2007, against 9 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PKI | SELL | 2020-05-28 | 2020-05-29 | $100.11 | $1.5M | +3.1% | -4.2% | +14.5% |
| PKI | SELL | 2019-02-13 | 2019-02-14 | $93.62 | $1.0M | -0.4% | -0.3% | -6.8% |
| PKI | SELL | 2017-11-13 | 2017-11-14 | $71.07 | $1.0M | +2.9% | -0.9% | +4.2% |
| PKI | SELL | 2017-06-01 | 2017-06-02 | $63.22 | $632K | -1.2% | +4.5% | +3.4% |
| VTAE | BUY | 2014-09-29 | 2014-10-01 | $8.00 | $300K | -36.0% | -1.4% | -1.4% |
| HLCS | BUY | 2007-05-30 | 2007-05-31 | $9.00 | $3.0M | N/A | N/A | N/A |
| ALNY | SELL | 2006-03-07 | 2006-03-09 | $16.51 | $360K | -18.4% | +0.9% | +0.9% |
| ALNY | SELL | 2006-03-03 | 2006-03-07 | $16.97 | $4.1M | -18.4% | +0.9% | +0.9% |
| ALNY | SELL | 2006-03-01 | 2006-03-03 | $16.06 | $2.2M | -18.4% | +0.9% | +0.9% |
| ALNY | SELL | 2006-02-27 | 2006-03-01 | $15.83 | $5.4M | -18.4% | +0.9% | +0.9% |
| ALNY | SELL | 2006-02-23 | 2006-02-27 | $14.92 | $1.4M | -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.