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美国

证券交易委员会

华盛顿特区 20549

表格 8-K

当前报告

根据第 13 或 15(d) 条

《1934 年证券交易法》

报告日期（所报告最早事件日期）：2026 年 10 月 27 日

TERADYNE, INC.

（注册人章程中规定的准确名称）

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

马萨诸塞州

001-06462

04-2272148

（州或其他司法管辖区

注册地）

（委员会

档案编号）

（美国国税局雇主

识别号码）

\n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n	\n
600 Riverpark Drive，North Reading，MA		01864
（主要行政办公室地址）		（邮政编码）

注册人电话号码（含区号）：(978) 370-2700

（自上次报告以来如有变更，填写前名称或前地址）

如果本 8-K 表格申报旨在同时履行注册人根据以下任何规定承担的申报义务，请勾选相应方框（见下文一般说明 A.2）：

\n \n \n \n \n \n \n

\n	\n
☐	根据《证券法》规则 425 进行的书面通信（17 CFR 230.425）

\n \n \n \n \n \n \n

\n	\n
☐	根据《交易法》规则 14a-12 提交的招揽材料（17 CFR 240.14a-12）

\n \n \n \n \n \n \n

\n	\n
☐	根据《交易法》规则 14d-2(b) 进行的开始前通信（17 CFR 240.14d-2(b)）

\n \n \n \n \n \n \n

\n	\n
☐	根据《交易法》规则 13e-4(c) 进行的开始前通信（17 CFR 240.13e-4(c)）

根据该法第 12(b) 条注册的证券：

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

各类别证券名称

交易

代码

各上市交易所名称

注册地

普通股，每股面值 $0.125

TER

纳斯达克股票市场有限责任公司

请勾选以表明注册人是否为《1933 年证券法》规则 405（本章 §230.405）或《1934 年证券交易法》规则 12b-2（本章 §240.12b-2）所定义的新兴成长型公司。

新兴成长型公司 ☐

如果是新兴成长型公司，请勾选以表明注册人是否已选择不使用《交易法》第 13(a) 条规定的、遵守任何新发布或修订的财务会计准则的延长过渡期。 ☐

第 2.02 项经营业绩和财务状况。

2026 年 10 月 27 日，Teradyne, Inc.（“Teradyne”）发布新闻稿，介绍其截至 2026 年 9 月 27 日的第三季度财务业绩。Teradyne 的新闻稿作为本 8-K 表格当前报告的附件 99.1 提交。

第 9.01 项财务报表和附件。

(d) 附件。

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n	\n
附件		说明

99.1		2026 年 10 月 27 日的新闻稿。

104		封面交互式数据文件（嵌入 Inline XBRL 文档中）

签名

根据《1934年证券交易法》的要求，注册人已正式授权下列签署人代表其签署本报告。

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n	\n	\n	\n	\n	\n
				TERADYNE, INC.

日期：October 28, 2026				签署人：		/s/ MICHELLE TURNER
				姓名：		Michelle Turner
				职务：		副总裁、首席财务官兼财务主管

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