David W. Keiser is Director at ALEXION PHARMACEUTICALS INC (ALXN). They have made 12 open-market trades across 1 company since 2006, most recently 2009-06-01.
CIK 0001231953
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 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ALXN | 166,796 | $30.4M |
Shares reported on the most recent Form 4, priced at the 2009-06-03 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ALXN | SELL · 10b5-1 | 2009-06-01 | 2009-06-03 | $36.62 | $1.8M | -15.6% | -1.2% | -1.2% |
| ALXN | SELL · 10b5-1 | 2009-05-11 | 2009-05-12 | $35.01 | $273K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL · 10b5-1 | 2009-05-07 | 2009-05-08 | $35.00 | $77K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL · 10b5-1 | 2009-05-01 | 2009-05-05 | $32.80 | $1.3M | -15.6% | -1.2% | -1.2% |
| ALXN | SELL · 10b5-1 | 2009-04-01 | 2009-04-03 | $36.24 | $2.1M | -15.6% | -1.2% | -1.2% |
| ALXN | SELL | 2009-03-16 | 2009-03-18 | $34.25 | $112K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL · 10b5-1 | 2009-03-13 | 2009-03-16 | $35.01 | $350K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL | 2009-03-10 | 2009-03-12 | $32.34 | $10K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL · 10b5-1 | 2009-03-02 | 2009-03-04 | $32.87 | $1.3M | -15.6% | -1.2% | -1.2% |
| ALXN | SELL · 10b5-1 | 2009-02-17 | 2009-02-19 | $39.47 | $2.2M | -15.6% | -1.2% | -1.2% |
| ALXN | SELL | 2009-01-16 | 2009-01-16 | $36.90 | $78K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL | 2009-01-12 | 2009-01-14 | $34.51 | $13K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL | 2008-09-11 | 2008-09-12 | $40.36 | $13K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL | 2008-09-11 | 2008-09-12 | $40.12 | $13K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL · 10b5-1 | 2008-07-30 | 2008-08-01 | $90.00 | $900K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL · 10b5-1 | 2008-07-25 | 2008-07-25 | $80.00 | $1.6M | -15.6% | -1.2% | -1.2% |
| ALXN | SELL | 2008-07-10 | 2008-07-11 | $75.75 | $12K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL · 10b5-1 | 2008-07-01 | 2008-07-03 | $71.87 | $1.4M | -15.6% | -1.2% | -1.2% |
| ALXN | SELL · 10b5-1 | 2008-05-01 | 2008-05-02 | $70.02 | $3.5M | -15.6% | -1.2% | -1.2% |
| ALXN | SELL | 2008-03-10 | 2008-03-12 | $56.05 | $9K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL | 2008-01-10 | 2008-01-11 | $69.02 | $49K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL | 2007-12-13 | 2007-12-14 | $74.81 | $935K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL | 2007-11-01 | 2007-11-02 | $76.24 | $953K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL · 10b5-1 | 2007-09-10 | 2007-09-12 | $65.18 | $14K | -15.6% | -1.2% | -1.2% |
| ALXN | SELL | 2007-07-30 | 2007-08-01 | $58.74 | $250K | -15.6% | -1.2% | -1.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.