William H. Rastetter is Director at ILLUMINA INC (ILMN). They have made 16 open-market trades across 5 companies since 2010, most recently 2026-06-30.
CIK 0001205903
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.
8 open-market purchases totalling $9.3M since 2013, against 8 sales. Across 7 scored buys the stock is down 0.1% at ninety days, and 2.3 points behind the S&P over the same stretch.
7 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 14% | 29% | 57% |
| Avg Move | -12.2% | -4.4% | -0.1% |
| Alpha | -9.9% | -4.5% | -2.3% |
| Scored | 7 | 7 | 7 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| NBIX | SELL · 10b5-1 | 2025-11-05 | 2025-11-06 | $151.82 | $2.7M | -10.1% | +0.5% | -10.6% |
| NBIX | SELL · 10b5-1 | 2025-05-05 | 2025-05-07 | $110.20 | $3.3M | +2.4% | +4.6% | +7.1% |
| NBIX | SELL | 2024-08-15 | 2024-08-16 | $146.69 | $4.2M | -14.7% | -15.7% | -15.3% |
| NBIX | SELL · 10b5-1 | 2024-01-02 | 2024-01-04 | $131.47 | $2.9M | +3.3% | +6.7% | +3.6% |
| NBIX | SELL · 10b5-1 | 2023-05-01 | 2023-05-03 | $101.43 | $872K | -0.7% | -6.6% | +4.6% |
| NBIX | SELL · 10b5-1 | 2023-04-19 | 2023-04-21 | $105.04 | $1.4M | -5.3% | -10.2% | -6.0% |
| NBIX | SELL | 2022-04-01 | 2022-04-05 | $94.93 | $2.0M | +0.6% | -11.8% | +1.7% |
| RGLS | BUY | 2019-05-07 | 2019-05-08 | $1.08 | $100K | +4.1% | -27.0% | -53.7% |
| NBIX | SELL | 2018-01-24 | 2018-01-26 | $90.00 | $855K | -7.1% | -6.1% | -10.9% |
| RGLS | BUY | 2017-07-25 | 2017-07-25 | $0.91 | $500K | -21.1% | -13.6% | +1.3% |
| RGLS | BUY | 2017-03-07 | 2017-03-07 | $1.15 | $288K | -1.9% | +21.2% | +15.4% |
| NBIX | SELL | 2017-02-01 | 2017-02-02 | $42.28 | $455K | -3.3% | +1.6% | +24.7% |
| FATE | BUY | 2016-11-23 | 2016-11-28 | $2.66 | $2.0M | -2.6% | -12.6% | +34.8% |
| RGLS | BUY | 2015-07-20 | 2015-07-21 | $10.17 | $1.0M | -29.3% | -0.2% | -0.2% |
| ILMN | SELL · 10b5-1 | 2015-01-20 | 2015-01-22 | $188.99 | $3.0M | -12.3% | -3.4% | -3.4% |
| ILMN | SELL · 10b5-1 | 2014-09-29 | 2014-09-30 | $163.73 | $41K | -12.3% | -3.4% | -3.4% |
| ILMN | SELL · 10b5-1 | 2014-06-30 | 2014-07-01 | $174.34 | $58K | -12.3% | -3.4% | -3.4% |
| ILMN | SELL · 10b5-1 | 2014-04-21 | 2014-04-22 | $135.82 | $119K | -12.3% | -3.4% | -3.4% |
| CERU | BUY | 2014-04-15 | 2014-04-17 | $7.00 | $132K | -13.3% | +3.4% | +3.4% |
| ILMN | SELL · 10b5-1 | 2014-03-31 | 2014-04-01 | $143.50 | $42K | -12.3% | -3.4% | -3.4% |
| ILMN | SELL · 10b5-1 | 2014-02-03 | 2014-02-05 | $151.93 | $1.3M | -12.3% | -3.4% | -3.4% |
| RCPT | SELL | 2014-01-03 | 2014-01-03 | $30.85 | $1.2M | N/A | N/A | N/A |
| RCPT | SELL | 2014-01-02 | 2014-01-03 | $30.29 | $835K | N/A | N/A | N/A |
| RCPT | SELL | 2013-12-05 | 2013-12-06 | $27.63 | $13.8M | N/A | N/A | N/A |
| RCPT | SELL | 2013-11-21 | 2013-11-25 | $22.05 | $5.5M | 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.
| Total |
| $9.4M |
Shares reported on the most recent Form 4, priced at the 2026-07-02 close. 1 holding could not be priced and is excluded from the total.