$NBIX

Boyer David W. sold $609K of NBIX

Boyer David W. (Chief Corp. Affairs Officer) sold 3,888 shares of NEUROCRINE BIOSCIENCES INC (NBIX) at $156.64 ($0.61M total) on 2026-05-26 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Boyer David W.
Published May 28, 2026, 4:00 PM UTC
Analysis
alphai AI DeskAI-generated
Added to alphai Aug 6, 2026, 8:47 AM UTC. Informational, not investment advice.
How this was made
alphai summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
alphai market briefInsider activity
Primary signal
$NBIX
Neutral
high confidence
Mentioned
$NBIX
Relevance
4/10
alphai data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$NBIXNeutralLow
01

Why it matters

The disclosed event is an open-market sale by a corporate affairs officer under a pre-arranged 10b5-1 plan, which generally carries less informational content than unscheduled selling.

02

Market read

For NBIX, this is primarily a sentiment datapoint rather than a fundamental catalyst.

03

What to watch

The article provides no context on total insider holdings beyond post-transaction shares, no buy activity, and no linkage to any concurrent operational or clinical catalyst.

Relevance 4/10Novelty 3/10Timing: filed 2026-05-28, transaction dated 2026-05-26

Background

The article is an SEC Form 4 disclosure for an insider transaction at Neurocrine Biosciences, reported via EDGAR.

Company-level read

Ticker impact

$NBIXNeutralHigh confidence
Context

Neurocrine Biosciences insider David W. Boyer sold 3,888 shares at $156.6418 on a 10b5-1 plan, totaling about $609K.

Expected impact

Likely minimal price impact; any reaction should be short-lived unless accompanied by other company-specific news.

Evidence & confidence

The filing is a Form 4 insider transaction and explicitly states a pre-arranged Rule 10b5-1 plan, which typically reduces interpretive weight versus discretionary selling.

Market effects

No direct sector read-through; this is company-specific insider liquidity activity.

None indicated.

None indicated.

Counterpoint

Traders may overreact to insider selling; because it is 10b5-1, it may reflect diversification or tax planning rather than bearish fundamentals.

Key entities

  • NEUROCRINE BIOSCIENCES INC

    Subject of the Form 4 insider transaction disclosure.

  • Boyer David W.

    Chief Corp. Affairs Officer who sold shares under a Rule 10b5-1 plan.

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

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