Insider Cluster (4 insiders) ·Filed Jun 8, 2026

NBIX

NEUROCRINE BIOSCIENCES INC
NEUTRAL
Impact 4/10
Horizondays Processed3mo ago
Insider cluster: 4 insiders, $4.5M total
Actionable Insight • Neutral

The cluster is dominated by option-exercise-related sales, which are routine and non-informational. The only pure open-market sale (Director Norwalk, $210K) is too small to signal a bearish view. No actionable trading signal here — monitor for any upcoming earnings or pipeline catalysts that could drive the stock.

DirectionNeutral
Confidencemedium
Horizondays
Final — all horizons settled through T+60d ⚠ clustered
NBIX ▼ -4.51% at T+60d
NEUTRAL call ✗ call lost -4.51% · α vs SPY -8.32% · entry $165.24 → $157.79
Entry anchored
Jun 8, 03:59 PM ET
via exchange tick
T+1d
-2.65%
call -2.65% · α -1.07%
$160.86
settled 4mo ago
T+5d
-3.47%
call -3.47% · α -5.88%
$159.51
settled 4mo ago
T+20d
+7.41%
call +7.41% · α +5.97%
$177.49
settled 3mo ago
T+60d
-4.51%
call -4.51% · α -8.32%
$157.79
settled 4w ago

Price Chart

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Executive Summary

A cluster of insider selling at Neurocrine Biosciences, totaling ~$4.5M over a week, is dominated by C-suite officers exercising options and selling shares. While the dollar value is modest relative to the $16.5B market cap (~0.03%), the concentration of senior executives (CMO, CHRO, CSO, CRO) selling at similar times warrants attention, though the sales are largely tied to option exercises and tax withholding, reducing their informational signal.

Key Financial Metrics

Direction
selling
Total Value
$4.5M
Insiders
4

Key Facts

  • Four insiders sold shares totaling ~$4.53M in a 7-day window (May 29–June 4, 2026).
  • Sales include C-suite: Chief Medical Officer, Chief Human Resources Officer, Chief Scientific Officer, and Chief Regulatory Officer.
  • Total sales represent ~0.03% of NBIX's $16.5B market cap — well below the 0.1% materiality threshold.
  • Most sales were preceded by option exercises (non-cash) or tied to tax withholding, suggesting liquidity-driven rather than informational selling.
  • Director Norwalk Leslie V sold $210K in a standalone open-market sale — the only pure open-market sell in the cluster.

Financial Impact

Total insider sales of ~$4.53M, or ~0.03% of market cap — immaterial in absolute and relative terms.

dilutioninsider ownership

Risk Factors

  • Continued insider selling could erode confidence if it accelerates in future windows.
  • No material risk identified from this cluster alone.

Market Snapshot

Exchange
Nasdaq
Sector
Biological Products, (No Diagnostic Substances)
Analyst Consensus
86% bullish (36 analysts)

Investment Themes

Biotech & Drug Discovery

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-NBIX-1780956502789
17 reports for NBIX
Performance horizon
100% Hit rate 3 of 3 directional calls best @ T+60▲ +27.40%Apr 6, 2026
Filters
Rows
Reports for NBIX — sortable, filterable
TypeNow
Sep 15, 2026
17d ago
Insider Cluster
NEUTRAL ★ 3/10
$149.50 $139.49▼ −6.70%▼ −9.26%$143.18 (−4.23%)
Jul 13, 2026
11w ago
Insider Cluster
NEUTRAL ★ 3/10
$174.10 $170.88▼ −1.85%▼ −1.06%$143.18 (−17.76%)
Jul 9, 2026
12w ago
Press Release
NEUTRAL ★ 2/10
$177.11 $171.55▼ −3.14%▼ −2.58%$143.18 (−19.16%)
Jun 9, 2026
16w ago
Insider Cluster
NEUTRAL ★ 3/10
$160.86 $156.42▼ −2.76%▼ −6.19%$143.18 (−10.99%)
Jun 8, 2026
16w ago
Insider Cluster
NEUTRAL ★ 2/10
$165.24 $159.51▼ −3.47%▼ −5.88%$143.18 (−13.35%)
Jun 8, 2026
16w ago
Insider Cluster
NEUTRAL ★ 4/10
$165.24 $159.51▼ −3.47%▼ −5.88%$143.18 (−13.35%)
Jun 4, 2026
17w ago
Insider Cluster
NEUTRAL ★ 3/10
$163.88 $159.76▼ −2.51%▼ −3.08%$143.18 (−12.63%)
Jun 2, 2026
17w ago
Insider Cluster
NEUTRAL ★ 2/10
$164.23 $160.86▼ −2.05%▲ +1.77%$143.18 (−12.81%)
Jun 2, 2026
17w ago
Insider Cluster
NEUTRAL ★ 3/10
$164.23 $160.86▼ −2.05%▲ +1.77%$143.18 (−12.81%)
Jun 2, 2026
17w ago
Insider Cluster
NEUTRAL ★ 2/10
$164.23 $160.86▼ −2.05%▲ +1.77%$143.18 (−12.81%)
Showing 10 of 17

US Market Status

Market Closed — Opens Mon (38h 30m)

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Report published Jun 8, 2026