Form 4 for NBIX NEUROCRINE BIOSCIENCES INC
Accepted 2026-02-03 00:00:00 ET · period of report 2026-01-31 · accession 0001909817-26-000003 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-02-03 | 2026-01-31 | NBIX | Boyer David W. | Chief Corp. Affairs Off | M - OptEx | $0.00 | +2,096 | 5,902 | +55% | $0 |
| D | 2026-02-03 | 2026-01-31 | NBIX | Boyer David W. | Chief Corp. Affairs Off | F - Tax | $136.06 | -1,189 | 4,713 | -20% | -$161.8K |
| D | 2026-02-03 | 2026-01-31 | NBIX | Boyer David W. | Chief Corp. Affairs Off | M - OptEx | $0.00 | -2,096 | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-01-31 | M | A | 2,096 | $0.00 | 5,902 | D | — | — | (F1) Includes an aggregate of 241 shares purchased on February 28, 2025 and August 29, 2025 from the Neurocrine Biosciences, Inc. 2018 Employee Stock Purchase Plan. |
| 2 | Common | Common Stock | 2026-01-31 | F | D | 1,189 | $136.06 | 4,713 | D | — | — | (F2) Shares withheld by Neurocrine Biosciences, Inc. (the "Company" or "Issuer") to satisfy tax withholding requirements on vesting of restricted stock units ("RSUs"). No shares were sold. |
| 3 | Derivative | Restriced Stock Unit | 2026-01-31 | M | D | 2,096 | $0.00 | 0 | D | — · — to — | 2,096 Common Stock | (F3) Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. (F4) This RSU was granted to the Reporting Person on January 31, 2022. In accordance with the terms of the RSU, the award vested as to 2,096 shares on January 31, 2023, vested as to 2,096 shares on January 31, 2024, vested as to 2,096 shares on January 31, 2025, and vested as to 2,096 shares on January 31, 2026, subject to the terms and conditions of the award. |