MATZ MARILYN sold $270K of TER

MATZ MARILYN sold 800 shares of TERADYNE, INC (TER) at $337.83 ($0.27M total) on 2026-09-15 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · MATZ MARILYN
Published Sep 16, 2026, 4:19 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 16, 2026, 4:52 PM 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
$TER
Neutral
high confidence
Mentioned
$TER
Relevance
3/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$TERNeutralLow
01

Why it matters

The sale represents a routine liquidity event; no immediate strategic shift is indicated.

02

Market read

Insider sale is a standard disclosure with limited trading relevance.

03

What to watch

The 10b5-1 plan may be pre‑scheduled and not reflective of current sentiment.

Relevance 3/10Novelty 4/10Timing: filed 2026-09-16

Background

Form 4 disclosures provide transparent reporting of insider transactions, used by investors to gauge insider confidence.

Company-level read

Ticker impact

$TERNeutralHigh confidence
Context

Director Marilyn Matz sold 800 shares of Teradyne for $270,264 via a 10b5-1 plan, reducing her stake to 14,241 shares.

Expected impact

Minor downward pressure, unlikely to move the stock beyond normal volatility.

Evidence & confidence

Form 4 filings are primary sources; the amount sold is small for a director, so market reaction is expected to be muted.

Market effects

Minimal; Teradyne operates in industrial automation, and a single director sale does not affect sector outlook.

None

None

Counterpoint

If the director is reducing exposure ahead of a negative catalyst, the sale could foreshadow downside.

Key entities

  • Teradyne, Inc.

    Manufacturer of test and industrial automation equipment.

  • Marilyn Matz

    Director of Teradyne.

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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