David W. J. McGirr is CFO at CUBIST PHARMACEUTICALS INC (CBST). They have made 11 open-market trades across 3 companies since 2007, most recently 2026-06-23.
CIK 0001219023
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.
1 open-market purchase totalling $180K since 2014, against 10 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| RYTM | SELL · 10b5-1 | 2025-06-03 | 2025-06-05 | $65.22 | $8.5M | -6.4% | +0.2% | +53.5% |
| INSM | SELL · 10b5-1 | 2025-06-03 | 2025-06-04 | $72.25 | $452K | +38.2% | +31.9% | +97.7% |
| RLYP | SELL | 2016-06-07 | 2016-06-08 | $19.34 | $20K | -8.7% | +5.8% | N/A |
| RLYP | SELL · 10b5-1 | 2015-06-11 | 2015-06-15 | $34.67 | $42K | -30.6% | +0.6% | +0.6% |
| ROKA | BUY | 2014-11-14 | 2014-11-17 | $3.60 | $180K | -31.2% | -12.4% | -12.4% |
| CBST | SELL | 2012-09-21 | 2012-09-24 | $49.79 | $747K | N/A | N/A | N/A |
| CBST | SELL | 2012-08-24 | 2012-08-27 | $45.69 | $914K | N/A | N/A | N/A |
| CBST | SELL | 2012-02-23 | 2012-02-27 | $42.68 | $640K | N/A | N/A | N/A |
| CBST | SELL | 2011-05-19 | 2011-05-23 | $35.95 | $899K | N/A | N/A | N/A |
| CBST | SELL | 2011-04-15 | 2011-04-19 | $32.00 | $800K | N/A | N/A | N/A |
| CBST | SELL | 2010-04-20 | 2010-04-22 | $22.93 | $636K | N/A | N/A | N/A |
| CBST | SELL | 2008-10-31 | 2008-11-03 | $24.94 | $624K | N/A | N/A | N/A |
| CBST | SELL | 2008-10-23 | 2008-10-27 | $21.23 | $531K | N/A | N/A | N/A |
| CBST | SELL | 2007-07-23 | 2007-07-24 | $22.05 | $551K | 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.