T

SEC EDGAR - Form 4 insider activity

Teradyne, Inc $TER

Tracked equity - 6 filings indexed by Nortis

Nortis signal thesis

Cluster activity detected. Review whether the filings are open-market trades or routine compensation events.

1

OM buys - 90d

3

OM sells - 90d

2

Routine filings

4

Cluster filings

$1.37M

Largest trade

50/100

Avg signal score

Filing tape

Recent filings

Last 30d: 6
Open-market SellNotable 62/100
filed 2026-10-19
SSCEO

Smith Gregory Stephen - Director, President and CEO - $1.37M

Insiders sell for many reasons (diversification, tax, personal); size and clustering matter more than a single sale.

View source filing
Open-market SellNotable 56/100
filed 2026-10-19
MMBoard

MATZ MARILYN - Director - $273.0K

Insiders sell for many reasons (diversification, tax, personal); size and clustering matter more than a single sale.

View source filing
Open-market SellCLUSTERNotable 65/100
filed 2026-10-02
JMBoard

JOHNSON MERCEDES - Director - $67.3K

Insiders sell for many reasons (diversification, tax, personal); size and clustering matter more than a single sale. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Grant / AwardCLUSTERRoutine 15/100
filed 2026-09-28
HPBoard

Herweck Peter - Director - -

This is compensation-related stock, not a purchase decision - it should not be read as an open-market buy. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Grant / AwardCLUSTERRoutine 15/100
filed 2026-09-28
TJBoard

TUFANO PAUL J - Director - -

This is compensation-related stock, not a purchase decision - it should not be read as an open-market buy. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Reported BuyCLUSTERHigh signal 85/100
filed 2026-09-28
MEBoard

MADDOCK ERNEST E - Director - -

Open-market purchases use the insider's own money, so they are generally more informative than awards or option mechanics. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing