# EDGAR Filing Document

**Accession Number:** 0000097210
**File Stem:** 0001193125-26-205435
**Filing Date:** 2026-5
**Character Count:** 24038
**Document Hash:** 42f607dd8a00cff4ba1a1a34dad95129
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-205435.hdr.sgml**: 20260505

**ACCESSION NUMBER**: 0001193125-26-205435

**CONFORMED SUBMISSION TYPE**: SD

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260505

**DATE AS OF CHANGE**: 20260505

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TERADYNE, INC
- **CENTRAL INDEX KEY:** 0000097210
- **STANDARD INDUSTRIAL CLASSIFICATION:** INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS [3825]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 042272148
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SD
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-06462
- **FILM NUMBER:** 26941176

**BUSINESS ADDRESS:**
- **STREET 1:** 600 RIVERPARK DRIVE
- **CITY:** NORTH READING
- **STATE:** MA
- **ZIP:** 01864
- **BUSINESS PHONE:** 978-370-2700

**MAIL ADDRESS:**
- **STREET 1:** 600 RIVERPARK DRIVE
- **CITY:** NORTH READING
- **STATE:** MA
- **ZIP:** 01864

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** TERADYNE INC
- **DATE OF NAME CHANGE:** 19920703

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**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

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**FORM SD**

**SPECIALIZED DISCLOSURE REPORT**

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**Teradyne, Inc.**

**(Exact name of the registrant as specified in its charter)**

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| | | |
|:---|:---|:---|
| **MASSACHUSETTS** | **001-06462** | **04-2272148** |
| **(State or other jurisdiction of**<br>**incorporation or organization)** | **(Commission**<br>**File Number)** | **(IRS Employer**<br>**Identification No.)** |

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| | |
|:---|:---|
| **600 Riverpark Drive, North Reading, MA** | **01864** |
| **(Address of principal executive offices)** | **(Zip code)** |

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| | |
|:---|:---|
| **Ryan Driscoll** | **978-370-1235** |

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**(Name and telephone number, including area code, of the**

**person to contact in connection with this report.)**

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Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:

☒ Rule 13p-1 under the Securities Exchange Act (17 CFR 240.13p-1) for the reporting period from January 1 to December 31, 2025.

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**Section 1 - Conflict Minerals Disclosure**

**Item 1.01 - Conflict Minerals Disclosure and Report**

Teradyne, Inc. ("Teradyne" or the "Company") has determined that gold, columbite-tantalite (coltan), cassiterite and wolframite, including their derivatives, tantalum, tin and tungsten ("Conflict Minerals"), are necessary to the functionality or production of products manufactured or contracted to be manufactured by Teradyne.

We conducted a reasonable country of origin inquiry regarding the Conflict Minerals in our products which was designed to determine whether any of the Conflict Minerals originated in the Democratic Republic of the Congo or an adjoining country ("Covered Countries") or are from recycled or scrap sources.

We conducted a supply-chain survey with direct suppliers using the Conflict Minerals Reporting Template from the Responsible Minerals Initiative ("RMI"). We asked suppliers to determine if Conflict Minerals were necessary to the functionality of their products provided to Teradyne and, if yes, to provide information regarding the smelters/refiners/mines for the Conflict Minerals included in those products. Several of our suppliers responded that their products included Conflict Minerals that originated in the Covered Countries.

Based on our reasonable country of origin inquiry, we know or have reason to believe that some of the Conflict Minerals in our products originated in the Covered Countries and are not from recycled or scrap sources.

As a result of our reasonable country of origin inquiry, we engaged in due diligence on the source and chain of custody of the Conflict Minerals in our products that originated or may have originated from the Covered Countries. We have filed a Conflict Minerals Report, describing our reasonable country of origin inquiry and due diligence efforts, as an exhibit to this specialized disclosure report. We have provided that report on the Corporate Social Responsibility page on our publicly available website at www.teradyne.com/about-teradyne/corporate-social-responsibility.

**Item 1.02 - Exhibit**

Teradyne attaches to this Form SD an Exhibit 1.01, which contains the Conflict Minerals Report required by Items 1.01 and 1.02.

**Section 2 - Resource Extraction Issuer Disclosure**

**Item 2.01 Resource Extraction Issuer Disclosure Report**

Not applicable

**Section 3 - Exhibits**

**Item 3.01 - Exhibits**

Exhibit 1.01 – Conflict Minerals Report as required by Items 1.01 and 1.02 of this Form SD.

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**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the duly authorized undersigned.

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| | |
|:---|:---|
| Teradyne, Inc. |  |
| /s/ Ryan Driscoll | May 5, 2026 |
| By: Ryan Driscoll | (Date) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Vice President and General Counsel |  |

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## Exhibit 1.01

**Exhibit 1.01 to Form SD**

**Conflict Minerals Report**

(1) <u>Introduction</u> 

Teradyne, Inc. ("Teradyne" or the "Company") has determined that gold, columbite-tantalite (coltan), cassiterite and wolframite, including their derivatives, tantalum, tin and tungsten ("Conflict Minerals"), are necessary to the functionality or production of products manufactured or contracted to be manufactured by Teradyne.

We conducted a reasonable country of origin inquiry ("RCOI") regarding the Conflict Minerals in our products which was designed to determine whether any of the Conflict Minerals originated or may have originated in the Democratic Republic of the Congo or an adjoining country ("Covered Countries") or are from recycled or scrap sources. Based on our RCOI, we know or have reason to believe that some of the Conflict Minerals in our products originated in the Covered Countries and are not from recycled or scrap sources. Accordingly, we engaged in due diligence on the source and chain of custody of the Conflict Minerals in our products that originated or may have originated from the Covered Countries and are filing this Conflict Minerals Report describing our RCOI and due diligence efforts in accordance with Rule 13p-1 and Form SD under the Securities Exchange Act of 1934.

This Conflict Minerals Report covers the reporting period January 1 to December 31, 2025.

(2) <u>Product Description</u> 

Teradyne is a global supplier of automation equipment for test and industrial applications. We design, develop, manufacture, and sell automatic test systems used to test semiconductors, wireless products, data storage and complex electronics systems in many industries including consumer electronics, wireless, automotive, industrial, computing, communications, and aerospace and defense industries. Our industrial automation products include collaborative robotic arms, autonomous mobile robots, and advanced robotic control software used by global manufacturing, logistics and light industrial customers to improve quality, increase manufacturing and material handling efficiency, and decrease manufacturing and logistics costs. Our automatic test equipment and industrial automation products include:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•semiconductor test systems;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•defense/aerospace test instrumentation and systems;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•storage test systems;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•circuit-board test and inspection systems;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•industrial automation products; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•wireless test systems.

Our products contain electronic and mechanical components that are provided by a wide range of suppliers. We use contract manufacturers to manufacture most of our products. The contract manufacturers typically obtain components and other materials used in the manufacturing from suppliers designated by us. As a result, we rely on our suppliers and contract manufacturers to provide us with information regarding the materials in the components supplied by them and used in the manufacturing of our products.

We are several steps removed from the mining and processing of the Conflict Minerals used in the components for our products. We do not purchase raw ore or unrefined Conflict Minerals. We do not interface directly with the smelters and refiners who provide the Conflict Minerals used in these components. We do not ourselves possess the information to determine the location of the mines or provide a description of the processing facilities for the Conflict Minerals. As a result, we rely on our suppliers to assist with our RCOI and due diligence efforts, including the identification of smelters and refiners for the Conflict Minerals in components they supply to us.

Our due diligence process, accordingly, focused on our suppliers, who were asked to provide us with information regarding the country of origin, mines and smelters or refiners of the Conflict Minerals in their components. Some suppliers did not respond to our inquiry. Some suppliers were unable to provide information regarding the smelters or refiners of the Conflict Minerals in their components. Other suppliers identified certain of the smelters and refiners they used, but the suppliers provided company-wide, aggregate smelter information across all of their products, rather

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than specific information regarding the smelters or refiners of the Conflict Minerals in the specific components used in our products. As a result, we are not able at this time to identify the smelters or refiners of the Conflict Minerals in the particular components used in our products. We will continue to seek information from our supply chain regarding the smelter facilities used to process the Conflict Minerals in our suppliers' components used in our products.

(3) <u>Due Diligence Design</u> 

We designed our due diligence to conform, in all material respects, with the Organization for Economic Cooperation and Development ("OECD") Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas (Third Edition 2016) ("OECD Framework"), a nationally and internationally recognized due diligence framework. The OECD Framework utilizes a five-step process for due diligence.

(4) <u>Due Diligence Measures Performed</u> 

For the reporting period January 1 to December 31, 2025, we performed the due diligence measures described in this Section 4:

(i) <u>Establish strong company management systems</u> 

We established a Conflict Minerals Policy and posted the policy externally on the Corporate Social Responsibility page on our publicly available website at https://www.teradyne.com/about-teradyne/corporate-social-responsibility.

We assembled an internal team of professionals, including from our audit, legal and supply chain management teams, to develop a Conflict Minerals program to implement our policy, conduct due diligence and report to senior management. In addition, we engaged a third-party service provider, Silicon Expert, to assist us with our due diligence process.

We adopted the Responsible Business Alliance ("RBA") Code of Conduct. Additionally, we have contractual obligations in our standard purchase terms and conditions and in our standard Master Supply Agreement requiring our suppliers to adhere to the responsible sourcing of minerals section of the Code of Conduct of the RBA.

We have attended industry training, including attending webinars and seminars, and have consulted with public accounting firms who have established practice groups covering Conflict Minerals compliance. We have conducted training within our supply chain management organization on our Conflict Minerals Policy in the form of presenting the issue to the Senior Director of Global Supply and his staff and including them in the conflict minerals reporting process. Further, we have educated our suppliers on conflict free sourcing by including information on conflict free sourcing in our requests for information.

We have a confidential hotline (https://teradyne.integrityline.com/) available for reporting suspected violations of Teradyne's Code of Conduct. This hotline is available for reporting suspected violations of Teradyne's Supplier Code of Conduct and for grievances relating to our Conflict Minerals Policy, our Conflict Minerals program, or this Conflict Minerals Report. We also have established a dedicated e-mail box (conflict.minerals@teradyne.com) for questions regarding our Conflict Minerals program.

(ii) <u>Identify and assess risk in the supply chain</u> 

In order to identify and assess risk in our supply chain, we hired Silicon Expert as a third-party service provider to conduct a supply-chain survey with direct suppliers using the Conflict Minerals Reporting Template from RMI. Silicon Expert asked suppliers to determine if Conflict Minerals were necessary to the functionality of their products provided to Teradyne and, if yes, to provide information regarding the smelters/refiners for the Conflict Minerals included in those products. Silicon Experts sent surveys to 97 direct suppliers.

Silicon Expert reviewed the supplier responses for completeness and consistency based on our internally defined review criteria and followed up with suppliers to obtain additional information or clarification. We prioritized our efforts based on the amount of spending with a supplier. Silicon Expert received responses from 85 suppliers

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representing eighty-eight percent (88%) of the suppliers to whom they sent surveys and approximately ninety percent 90% of our annual spending.

Silicon Expert asked suppliers who indicated they use Conflict Minerals in their products to provide a list of their smelters/refiners. The responses provided aggregate information across all their products, rather than specific information regarding the smelters or refiners of the Conflict Minerals in the specific components used in our products. As a result, we are not able at this time to identify the smelters or refiners of the Conflict Minerals in the particular components used in our products.

From the suppliers' responses, we attempted to identify the smelters/refiners used in our suppliers' supply chain. Silicon Expert compared the names of smelters/refiners identified by our suppliers against the Standard Smelter List maintained by RMI. In many cases, Silicon Expert were unable to match the names provided with the names in the list and could not otherwise verify whether many named smelters/refiners were active businesses with smelting/refining operations. Through this process, Silicon Expert identified unique smelters/refiners used by the responding suppliers that were on RMI's Standard Smelter List.

Silicon Expert have not independently investigated the smelters/refiners identified by our suppliers but are relying on the RMI who is taking action to address responsible material sourcing through the Conflict Free Smelter Program.

(iii) <u>Design and implement a strategy to respond to identified risks</u> 

Through our due diligence process, we have identified a risk associated with our supply chain that some of the Conflict Minerals used in our products originate from the Covered Countries and are not sourced from smelters/refiners on RMI's Conflict Free Smelter List. We designed and implemented a strategy to mitigate these identified risks, as discussed above, even though we have not identified any known instances where the Conflict Minerals used in our products directly or indirectly financed or benefit armed groups in the Covered Countries.

The internal team responsible for our Conflict Minerals program has reported to senior management the results of the Company's reasonable country of origin inquiry and due diligence process for 2025 and the strategy to respond to the risks associated with our supply chain regarding the Conflict Minerals used in our products. Senior management of the Company has reported to the Board of Directors on our Conflict Minerals program.

(iv) <u>Carry out independent third-party audits of supply chain due diligence practices</u> 

We rely on the RMI Conflict Free Smelter Program to validate smelters/refiners as conflict free. We rely upon industry certifications such as through the RMI Conflict Free Smelter Program before concluding that a smelter or refiner is conflict free. This program is continuing to add smelters/refiners to its Conflict Free Smelter List.

(v) <u>Report on supply chain due diligence</u> 

We report annually on supply chain due diligence in compliance with SEC regulations by filing a Form SD and, if applicable, a Conflict Minerals Report.

(5) <u>Results of Due Diligence</u> 

For the reporting period January 1 to December 31, 2025, following our reasonable country of origin inquiry and our due diligence process, we have reason to believe that a portion of the Conflict Minerals used in our products originated from the Covered Countries, but we have not identified any instances in which the sourcing of Conflict Minerals directly or indirectly financed or benefitted armed groups in the Covered Countries. Many of our suppliers did not respond to our survey and the information provided by the responding suppliers was often incomplete or unverifiable. Accordingly, we were unable to verify with certainty the source of all the Conflict Minerals in our products.

Based on our analysis of our supplier responses, we have determined the following:

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•<u>Source of Conflict Minerals</u> - Sixty-one percent (61%) of the suppliers who responded to our survey indicated they had reason to believe Conflict Minerals in their products originated in the Covered Countries and zero percent (0%) were unable to provide the origin of the Conflict Minerals in their products;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•<u>Smelters/Refiners -</u> Seventy-five percent (75%) of the responding suppliers listed smelters/refiners in their responses, and twenty-one percent (21%) of the responding suppliers stated that no conflict minerals were in their products supplied to us and therefore did not include any smelter information. Silicon Expert identified 406 unique smelters/refiners that were on RMI's Standard Smelter List, compared to 622 from our 2024 supplier survey. Our suppliers also listed smelters/refiners in their responses that we were unable to verify were active businesses with smelting/refining operations; and &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•<u>Conformant Smelters –</u> Teradyne uses the RMI list of conformant smelters to identify the percent of smelters identified in our surveyed supply chain that are verified as conflict free. We have identified the following: One hundred percent (100%) of the gold smelters in our surveyed supply chain are verified conflict free. One hundred percent (100%) of the tantalum smelters in our surveyed supply chain are verified conflict free. One hundred percent (100%) of the tin smelters in our surveyed supply chain are verified conflict free. One hundred percent (100%) of the tungsten smelters in our surveyed supply chain are verified conflict free. 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• nan

As a downstream purchaser of components that contain Conflict Minerals, our due diligence measures can provide only reasonable, not absolute, assurance regarding the source and chain of custody of the necessary Conflict Minerals. Our due diligence processes are based necessarily on requesting information from our direct suppliers who in turn seek information within their supply chains. We also rely on information collected and provided by an independent third-party audit program, particularly with respect to the RMI Standard Smelter List. Such sources may yield inaccurate or incomplete information. For 2025, we focused on receiving more complete information from our suppliers than in prior years by targeting directly to our top spend suppliers in our due diligence through Silicon Expert Services.

For the 2025 reporting period, we are not declaring any of our products as DRC Conflict Free and, accordingly, are not required to obtain an independent private sector audit of this Conflict Minerals Report.

(6) <u>Due Diligence Improvements and Risk Mitigation Steps</u> 

We have taken and will continue to take steps to improve our due diligence process and results and to mitigate the risk that the Conflict Minerals in our products directly or indirectly benefit or finance armed groups in the Covered Countries. In particular, we will:

• obtain responses from targeted suppliers;

• improve our supplier data and add new suppliers to our survey;

• seek to obtain more complete and detailed responses from our suppliers regarding the specific smelter facilities used to process the Conflict Minerals in the specific supplier components used in our products and which of those facilities source Conflict Minerals from the Covered Countries; and

• maintain and update our database of the smelters/refiners used by our suppliers.

In addition, we will continue to:

• require our suppliers to implement policies to reasonably assure that the Conflict Minerals in the products they supply to us do not directly or indirectly finance or benefit armed groups in the Covered Countries;

• require our suppliers to exercise due diligence on the source and chain of custody of these minerals and make their due diligence measures available to Teradyne;

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• use third-party service providers such as Silicon Expert to assist us and to implement improvements with our supplier due diligence process;

• train new and existing suppliers as necessary regarding our Conflict Minerals Policy and program; and

• encourage suppliers to source from smelters on the Conflict Free Smelter List.

Finally, we will continue to monitor and comply with guidance from the SEC and to seek to meet or exceed best practices in the electronics industry regarding conflict free sourcing. In this regard, we will support industry-wide efforts toward conflict free sourcing.

This Conflict Minerals Report contains forward-looking statements relating to actions that we may take in the future. Such statements are based on the current expectations of our management and are neither promises nor guarantees of future performance of the actions. The forward-looking statements represent management's expectations as of the date of this report. Subsequent events and developments may cause management's views to change. While we may elect to update these forward-looking statements at some point in the future, we specifically disclaim any obligation to do so, except as required by law. These forward-looking statements should not be relied upon as representing Teradyne's views as of any date subsequent to the date of this report.

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