William G. Harris files SEC Form 4 disclosures for XENOPORT INC. They have made 5 open-market trades across 2 companies since 2006, most recently 2025-06-05.
CIK 0001322961
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 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SLNO | SELL | 2020-10-30 | 2020-11-03 | $1.74 | $4K | +13.8% | +6.1% | +13.8% |
| XNPT | SELL · 10b5-1 | 2008-09-02 | 2008-09-04 | $49.06 | $69K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL · 10b5-1 | 2008-08-01 | 2008-08-04 | $45.88 | $64K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL · 10b5-1 | 2008-07-23 | 2008-07-24 | $45.00 | $23K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL · 10b5-1 | 2008-07-01 | 2008-07-02 | $38.08 | $38K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL · 10b5-1 | 2008-06-02 | 2008-06-05 | $41.87 | $42K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL · 10b5-1 | 2008-05-14 | 2008-05-15 | $45.06 | $23K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL · 10b5-1 | 2008-05-01 | 2008-05-02 | $42.59 | $43K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL · 10b5-1 | 2008-04-01 | 2008-04-02 | $42.06 | $42K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL · 10b5-1 | 2008-03-03 | 2008-03-04 | $50.74 | $76K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL · 10b5-1 | 2008-02-01 | 2008-02-05 | $61.72 | $93K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL · 10b5-1 | 2008-01-02 | 2008-01-04 | $56.03 | $84K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL · 10b5-1 | 2007-12-03 | 2007-12-04 | $53.30 | $69K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL · 10b5-1 | 2007-11-01 | 2007-11-02 | $49.39 | $64K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL · 10b5-1 | 2007-10-01 | 2007-10-02 | $49.29 | $69K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL | 2007-03-14 | 2007-03-16 | $24.71 | $201K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL | 2007-03-14 | 2007-03-16 | $24.75 | $169K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL | 2006-02-24 | 2006-02-27 | $18.48 | $367K | -16.8% | -3.6% | -3.6% |
| XNPT | SELL | 2006-02-24 | 2006-02-27 | $18.74 | $40K | -16.8% | -3.6% | -3.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.