David W. Boyer is Chief Corp. Affairs Officer at NEUROCRINE BIOSCIENCES INC (NBIX). They have made 5 open-market trades across 1 company since 2022, most recently 2026-09-14.
CIK 0001909817
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 | Shares | Value |
|---|---|---|
| NBIX | 8,722 | $1.4M |
Shares reported on the most recent Form 4, priced at the 2026-09-15 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| NBIX | SELL · 10b5-1 | 2026-09-14 | 2026-09-15 | $157.45 | $130K | -7.7% | -8.7% | — |
| NBIX | SELL · 10b5-1 | 2026-05-26 | 2026-05-28 | $156.64 | $609K | +5.8% | +8.8% | +0.2% |
| NBIX | SELL · 10b5-1 | 2025-02-13 | 2025-02-14 | $116.74 | $417K | +2.2% | -3.1% | +4.6% |
| NBIX | SELL · 10b5-1 | 2025-02-10 | 2025-02-12 | $118.31 | $83K | -1.2% | -5.6% | -0.4% |
| NBIX | SELL · 10b5-1 | 2025-01-31 | 2025-02-04 | $152.94 | $338K | -24.2% | -25.7% | -27.6% |
| NBIX | SELL · 10b5-1 | 2024-10-03 | 2024-10-07 | $113.66 | $294K | +6.1% | +12.2% | +22.5% |
| NBIX | SELL · 10b5-1 | 2024-09-13 | 2024-09-17 | $121.88 | $844K | -6.5% | -3.7% | +8.2% |
| NBIX | SELL · 10b5-1 | 2024-02-13 | 2024-02-15 | $133.08 | $482K | +0.4% | +3.9% | +5.9% |
| NBIX | SELL · 10b5-1 | 2024-02-06 | 2024-02-08 | $137.01 | $330K | -3.0% | +2.9% | +3.2% |
| NBIX | SELL · 10b5-1 | 2024-01-31 | 2024-02-02 | $140.80 | $590K | -6.7% | -5.7% | -1.0% |
| NBIX | SELL · 10b5-1 | 2023-10-02 | 2023-10-04 | $112.68 | $324K | +0.6% | -0.5% | +16.6% |
| NBIX | SELL · 10b5-1 | 2023-08-30 | 2023-09-01 | $107.59 | $588K | +3.0% | +1.2% | +5.5% |
| NBIX | SELL · 10b5-1 | 2023-08-21 | 2023-08-23 | $107.41 | $172K | +2.1% | +5.6% | +1.8% |
| NBIX | SELL | 2023-02-06 | 2023-02-08 | $102.45 | $5.1M | -2.5% | -8.5% | -7.2% |
| NBIX | SELL | 2023-01-31 | 2023-02-02 | $109.92 | $243K | -5.8% | -7.8% | -9.8% |
| NBIX | SELL | 2022-10-31 | 2022-11-02 | $114.12 | $296K | -3.2% | +4.0% | -9.0% |
| NBIX | SELL | 2022-10-03 | 2022-10-05 | $106.59 | $306K | +2.3% | +12.2% | +10.6% |
| NBIX | SELL | 2022-02-07 | 2022-02-09 | $79.99 | $75K | +10.7% | +12.7% | +3.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.