David Davidson is Chief Medical Officer at bluebird bio, Inc. (BLUE). They have made 62 open-market trades across 1 company since 2013, most recently 2021-04-05.
CIK 0001578696
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 62 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| BLUE | 47,787 | $238K |
Shares reported on the most recent Form 4, priced at the 2021-04-07 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| BLUE | SELL | 2021-04-05 | 2021-04-07 | $30.21 | $1K | -6.5% | +1.9% | +3.7% |
| BLUE | SELL | 2021-03-02 | 2021-03-04 | $29.58 | $1K | +15.3% | +10.7% | +10.8% |
| BLUE | SELL | 2021-02-17 | 2021-02-18 | $28.16 | $20K | +12.8% | +13.8% | +7.8% |
| BLUE | SELL | 2021-02-02 | 2021-02-04 | $45.93 | $3K | -40.9% | -40.4% | -38.4% |
| BLUE | SELL | 2021-01-05 | 2021-01-08 | $45.05 | $288K | -5.6% | -3.5% | -41.8% |
| BLUE | SELL | 2020-12-02 | 2020-12-04 | $46.20 | $3K | -5.4% | -5.0% | -40.6% |
| BLUE | SELL | 2020-11-02 | 2020-11-04 | $52.94 | $3K | -4.0% | -3.0% | -4.0% |
| BLUE | SELL | 2020-10-02 | 2020-10-06 | $52.77 | $3K | -0.4% | -13.3% | -20.7% |
| BLUE | SELL | 2020-09-03 | 2020-09-08 | $58.60 | $2K | -0.1% | +1.8% | -20.0% |
| BLUE | SELL | 2020-08-03 | 2020-08-05 | $60.75 | $3K | -1.5% | -10.9% | -13.7% |
| BLUE | SELL | 2020-07-02 | 2020-07-07 | $61.57 | $3K | +2.8% | -0.9% | -12.9% |
| BLUE | SELL | 2020-06-02 | 2020-06-04 | $64.03 | $3K | -7.0% | -14.4% | -12.5% |
| BLUE | SELL | 2020-01-07 | 2020-01-09 | $89.97 | $593K | +2.9% | -0.6% | -52.8% |
| BLUE | SELL | 2019-09-10 | 2019-09-11 | $100.16 | $206K | +3.2% | -13.7% | -16.1% |
| BLUE | SELL | 2019-09-09 | 2019-09-11 | $100.14 | $713K | +3.2% | -13.7% | -16.1% |
| BLUE | SELL | 2019-09-09 | 2019-09-11 | $100.11 | $300K | +3.2% | -13.7% | -16.1% |
| BLUE | SELL | 2019-08-06 | 2019-08-08 | $116.09 | $587K | -1.4% | -19.2% | -36.3% |
| BLUE | SELL | 2019-07-05 | 2019-07-09 | $129.36 | $1.9M | +4.8% | -5.7% | -32.7% |
| BLUE | SELL | 2019-07-05 | 2019-07-09 | $129.47 | $992K | +4.8% | -5.7% | -32.7% |
| BLUE | SELL | 2019-06-06 | 2019-06-10 | $122.36 | $1.1M | -2.4% | +11.1% | -16.9% |
| BLUE | SELL | 2019-05-06 | 2019-05-08 | $139.10 | $1.0M | -7.4% | -3.6% | -7.7% |
| BLUE | SELL | 2019-04-04 | 2019-04-08 | $160.06 | $2.0M | -14.2% | -17.1% | -20.0% |
| BLUE | SELL | 2019-03-13 | 2019-03-15 | $146.58 | $660K | -6.8% | -3.2% | -21.7% |
| BLUE | SELL | 2019-03-04 | 2019-03-06 | $155.73 | $1.5M | +9.0% | +12.9% | -9.6% |
| BLUE | SELL | 2019-02-04 | 2019-02-05 | $134.27 | $1.1M | +1.6% | +3.8% | +9.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.