Martin Rosenberg is Director at CUBIST PHARMACEUTICALS INC (CBST). They have made 7 open-market trades across 1 company since 2008, most recently 2013-09-09.
CIK 0001320122
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 7 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CBST | 21,477 | — |
Shares reported on the most recent Form 4, priced at the 2013-09-10 close. 1 holding could not be priced and is excluded from the total.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CBST | SELL | 2013-09-09 | 2013-09-10 | $65.00 | $1.0M | N/A | N/A | N/A |
| CBST | SELL | 2012-10-01 | 2012-10-02 | $47.75 | $478K | N/A | N/A | N/A |
| CBST | SELL | 2012-07-02 | 2012-07-03 | $37.88 | $379K | N/A | N/A | N/A |
| CBST | SELL | 2012-04-02 | 2012-04-03 | $42.76 | $428K | N/A | N/A | N/A |
| CBST | SELL | 2012-01-03 | 2012-01-04 | $40.08 | $401K | N/A | N/A | N/A |
| CBST | SELL | 2011-12-15 | 2011-12-15 | $37.10 | $427K | N/A | N/A | N/A |
| CBST | SELL | 2008-07-22 | 2008-07-23 | $22.00 | $220K | 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.