$NTRA

Chapman Steven Leonard sold $9.1M of NTRA

Chapman Steven Leonard (CEO AND PRESIDENT) sold 41,124 shares of Natera, Inc. (NTRA) at an average of $221.03 ($212.42–$226.97, $9.09M total) across 14 trades on 2026-06-04 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Chapman Steven Leonard
Published Jun 6, 2026, 1:05 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 28, 2026, 3:58 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
$NTRA
Bearish
medium confidence
Mentioned
$NTRA
Relevance
5/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$NTRABearishLow
01

Why it matters

The $9.1M sale reduces insider ownership and may prompt short‑term price weakness, though the pre‑arranged plan suggests it could be routine.

02

Market read

First‑report insider sale of a mid‑cap biotech; modest trading relevance with potential short‑term downside.

03

What to watch

CEO could be diversifying personal portfolio or meeting tax obligations; the sale does not necessarily reflect company fundamentals.

Relevance 5/10Novelty 7/10Timing: post‑market today

Background

SEC Form 4 filing discloses an insider transaction by Natera's CEO, providing the first public details of the sale.

Company-level read

Ticker impact

$NTRABearishMedium confidence
Context

CEO Steven Leonard sold $9.1M of Natera shares via a 10b5‑1 plan, reducing his stake to 108,743 shares.

Expected impact

likely pressure as the market absorbs the $9M insider sell

Evidence & confidence

A $9M sale by the CEO is material and signals potential concerns, but 10b5‑1 plans can be routine.

Market effects

May dampen sentiment in the biotech sector as insider sales are watched closely.

US equity markets could see modest pullback in related biotech stocks.

Limited to investors tracking US biotech issuers.

Counterpoint

The sale may be a routine liquidity event under a pre‑arranged 10b5‑1 plan, not a bearish signal.

Key entities

  • Natera, Inc.

    US‑listed biotech (ticker NTRA) whose CEO sold shares.

  • Steven Leonard Chapman

    CEO and President of Natera, executing a 10b5‑1 sale.

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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