Teradyne, Inc. (TER) Insider Trading

Over the last 3 months, TER insiders made 0 open-market buys and 8 sales, a net sale of -$6.4M (SEC Form 4). Over the last 6 months, 908 institutions increased and 883 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
8
Net (3m)
-$6.4M
Insider trades by month Buys Sells
Mar
Apr
May
Jun
Jul
Aug
Context3-month price -4.5%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Aug 18, 2026MATZ MARILYNdirectorSell1,200$425.00
Aug 18, 2026Smith Gregory Stephendirector, officer: President and CEOSell4,000$425.00
Aug 4, 2026JOHNSON MERCEDESdirectorSell166$358.15
Jul 16, 2026MATZ MARILYNdirectorSell1,200$356.31
Jul 16, 2026Smith Gregory Stephendirector, officer: President and CEOSell4,000$356.31
Jul 2, 2026JOHNSON MERCEDESdirectorSell167$460.00
Jun 29, 2026Henry Andrew ChisholmdirectorGrant52
Jun 29, 2026TUFANO PAUL JdirectorGrant116
Jun 29, 2026Herweck PeterdirectorGrant63
Jun 16, 2026Smith Gregory Stephendirector, officer: President and CEOSell4,000$423.03
Jun 16, 2026MATZ MARILYNdirectorSell1,200$423.03
May 26, 2026Poulin Shannon Johnofficer: President, Semiconductor TestTax1,531$345.98
May 26, 2026MATZ MARILYNdirectorSell400$350.00
May 26, 2026Poulin Shannon Johnofficer: President, Semiconductor TestSell656$355.00
May 26, 2026Poulin Shannon Johnofficer: President, Semiconductor TestSell1,008$345.37
May 26, 2026Poulin Shannon Johnofficer: President, Semiconductor TestOption2,843$82.61
May 19, 2026Smith Gregory Stephendirector, officer: President and CEOOption4,597$72.10
May 19, 2026MATZ MARILYNdirectorSell800$338.98
May 19, 2026Smith Gregory Stephendirector, officer: President and CEOSell8,597$338.98
May 12, 2026TUFANO PAUL JdirectorGrant668
May 12, 2026MATZ MARILYNdirectorGrant668
May 12, 2026JOHNSON MERCEDESdirectorGrant668
May 12, 2026MADDOCK ERNEST EdirectorGrant668
May 12, 2026van Kralingen Bridget AdirectorGrant668
May 12, 2026Henry Andrew ChisholmdirectorGrant668
May 12, 2026Sayiner NecipdirectorGrant668
May 12, 2026Herweck PeterdirectorGrant668
May 11, 2026Driscoll Ryanofficer: VP, General Counsel, SecretarySell680$377.60
Apr 9, 2026Mills Reganofficer: President, Product TestSell16$342.17
Apr 7, 2026JOHNSON MERCEDESdirectorSell625$312.20

Source: TER SEC Form 4 filings, latest Aug 18, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their TER positions over the last 6 months (SEC Form 13F).

Increased
908
New positions
639
Reduced
883
Sold out
126
Largest moves
InstitutionActionSharesFiled
BlackRock, Inc.Increased19.4MAug 7, 2026
BLACKROCK, INC.Increased16.3MMay 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCIncreased10.2MAug 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position10.2MMay 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCIncreased8.6MAug 13, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position8.6MMay 8, 2026
STATE STREET CORPIncreased7.3MAug 7, 2026
STATE STREET CORPReduced7.0MMay 15, 2026
Invesco Ltd.Increased6.7MAug 14, 2026
JPMORGAN CHASE & COIncreased5.6MAug 12, 2026
JANE STREET GROUP, LLCIncreased5.2MAug 14, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased4.6MAug 12, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased4.4MMay 15, 2026
FMR LLCIncreased4.1MAug 13, 2026
FMR LLCIncreased3.6MMay 15, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.