$NTRA

Rabinowitz Matthew sold $16.4M of NTRA

Rabinowitz Matthew (EXECUTIVE CHAIRMAN) sold 50,000 shares of Natera, Inc. (NTRA) at an average of $327.97 ($325.01–$329.62, $16.40M total) across 6 trades on 2026-09-11 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Rabinowitz Matthew
Published Sep 12, 2026, 1:35 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 12, 2026, 2:01 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
6/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$NTRABearishLow
01

Why it matters

The disclosed sale is the first public report of this transaction, making it a primary source of new information.

02

Market read

Insider sell of this size may prompt short‑term price pressure, but the pre‑arranged nature tempers the signal.

03

What to watch

The 10b5‑1 plan indicates pre‑planned execution, reducing the informational weight of the sale.

Relevance 6/10Novelty 7/10Timing: after-market 2026-09-11

Background

Form 4 filings disclose insider transactions; a 10b5‑1 plan allows pre‑scheduled sales.

Company-level read

Ticker impact

$NTRABearishMedium confidence
Context

Executive Chairman Matthew Rabinowitz sold 50,000 shares for $16.4M via a 10b5‑1 plan, reducing his stake to 2,225,394 shares.

Expected impact

Possible modest downside pressure over the next few days.

Evidence & confidence

A $16M sale by a top executive is material and disclosed first via Form 4; markets often react negatively to sizable insider disposals.

Market effects

Minimal; biotech sector may see slight sentiment drag from insider sell.

U.S. market only; no broader regional effect.

Low; limited to Natera investors.

Counterpoint

The sale could be a routine liquidity event under a pre‑arranged plan, not a negative signal.

Key entities

  • Matthew Rabinowitz

    Executive Chairman of Natera, Inc.

  • Natera, Inc.

    Genomics testing company listed on NASDAQ.

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.

Related articles

$NTRAHigh

Why Natera (NTRA) Stock Is Up Today

Natera (NTRA) stock rose 2.2% after the FDA granted Breakthrough Device designation to its multi-cancer early detection assay. The assay showed promising performance data across 12 cancer types. The company's shares are up 74.9% year-to-date, trading near a 52-week high of $425.64. Natera plans a commercial launch in Japan in 2027 for its Signatera test, approved as a companion diagnostic for bladder cancer.

$NTRAHigh

Natera Receives FDA Breakthrough Device Designation for Multi-Cancer Early Detection Blood Test

Natera (NTRA) received FDA Breakthrough Device Designation for its multi-cancer early detection blood test, based on clinical data covering 12 cancer types. The designation accelerates regulatory review but does not guarantee approval. The test analyzes cell-free DNA to detect cancer signals and their likely origin. Natera aims to expand early cancer detection options, though clinical performance and benefits require further evaluation.