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Active cluster sell — 3 distinct insiders, $6M, window ends Oct 1, 2026.
Figures computed from official regulatory filings — .
Analysttarget 446.47 USD (-1%) · consensus 4.35/5 · 12 buy · 5 hold · 0 sell
Ownershipinsiders 0.2% · institutions 100.93% · short 6.0% of float
In USD · as of Oct 5, 2026
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Teradyne, Inc. engages in the design, development, manufacture, and sale of automated test systems and robotics products in the United States, Asia Pacific, Europe, the Middle East, and Africa. The company operates through Semiconductor Test, Robotics, and Other segments. The Semiconductor Test segment offers products and services for wafer level and device package testing, and system level testing of semiconductor devices in automotive, industrial, communications, consumer, smartphones, cloud, computer and electronic game, and other applications. This segment also provides FLEX test platform systems; J750 test system to address the volume semiconductor devices, including microcontrollers; Magnum platform that tests memory devices, such as flash memory and DRAM; and ETS platform for semiconductor manufacturers, and assembly and test subcontractors in the analog/mixed signal markets. It serves integrated device manufacturers that integrate the fabrication of silicon wafers into their business; fabless companies that outsource the manufacturing of silicon wafers; foundries; and semiconductor assembly and test providers. The Robotics segment provides collaborative robotic arms and autonomous mobile robots for manufacturing, logistics, and industrial customers. It also provides product test instruments which includes operations related to the design, manufacturing and marketing of products and services for defense/aerospace test, circuit-board test, wireless test systems, and silicon photonics testing. The company has a strategic collaboration with Tokyo Electron Limited for the development of a test cell solution for device screening in AI and data center applications. Teradyne, Inc. was incorporated in 1960 and is headquartered in North Reading, Massachusetts.
Market information source · Oct 5, 2026
Periods recorded in the consulted sources. These do not certify the legal dates of name changes.
SEC company identity · Oct 5, 2026
Open-market timeline · full history
3 buys767 sells— close pricebar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details | |
|---|---|---|---|---|---|
| JOHNSON MERCEDES | Sell | $67.3K | SEC |
| Henry Andrew Chisholm | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| TUFANO PAUL J | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| MADDOCK ERNEST Etrack record | Other | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Herweck Peter | Other | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Herweck Peter | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| TUFANO PAUL J | Other | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| MATZ MARILYN | Sell | $140.4K | SEC |
| MATZ MARILYN | Sell | $270.3K | SEC |
| Smith Gregory Stephen | Sell | $1.4M | SEC |
| JOHNSON MERCEDES | Sell | $57K | SEC |
| MATZ MARILYN | Sell | $510K | SEC |
| Smith Gregory Stephen | Sell | $1.7M | SEC |
| JOHNSON MERCEDES | Sell | $59.5K | SEC |
| MATZ MARILYN | Sell | $427.6K | SEC |
| Smith Gregory Stephen | Sell | $1.4M | SEC |
| JOHNSON MERCEDES | Sell | $76.8K | SEC |
| TUFANO PAUL J | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Henry Andrew Chisholm | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Herweck Peter | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Herweck Peter | Other | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| MATZ MARILYN | Sell | $507.6K | SEC |
| MADDOCK ERNEST Etrack record | Other | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| TUFANO PAUL J | Other | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Smith Gregory Stephen | Sell | $1.7M | SEC |