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美国

证券交易委员会

华盛顿特区 20549

8-K 表格

根据《证券交易法》第 13 或 15(d) 条提交的

当前报告

报告日期（最早报告事件日期）：2026年10月22日

Quest Diagnostics Incorporated

（注册人章程中列明的确切名称）

特拉华州

（注册成立所在州或其他司法管辖区）

001-12215

16-1387862

（委员会档案编号）

（美国国税局雇主识别号）

500 Plaza Drive

新泽西州塞考克斯，

07094

（主要行政办公室地址）

（邮政编码）

(973)

520-2700

（注册人电话号码，包括区号）

如果本 8-K 表格申报旨在同时履行注册人在以下任一规定下的申报义务，请勾选相应方框（参见下文一般说明 A.2）：

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

☐ 根据《交易法》规则 14a-12 提交的征集材料（17 CFR 240.14a-12）

☐ 根据《交易法》规则 14d-2(b) 进行的要约收购前通信（17 CFR 240.14d-2(b)）

☐ 根据《交易法》规则 13e-4(c) 进行的要约收购前通信（17 CFR 240.13e-4(c)）

根据该法第 12(b) 条注册的证券：


各类证券名称	交易代码	上市交易所名称
普通股，面值 $0.01	DGX	纽约证券交易所

请勾选，以说明注册人是否为《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 ☐

如果注册人为新兴成长型公司，请勾选，以说明注册人是否选择不使用《交易法》第 13(a) 条规定的延长过渡期来遵守任何新的或修订后的财务会计准则。☐

第 2.02 项。经营业绩和财务状况

2026年10月22日，Quest Diagnostics Incorporated（“公司”）发布新闻稿，宣布了包括截至2026年9月30日季度业绩在内的多项信息。该新闻稿副本作为附件 99.1 随附于本文件，并以引用方式纳入本文。

第 9.01 项。财务报表及附件


d.	附件

	99.1	Quest Diagnostics Incorporated 于2026年10月22日发布的新闻稿，宣布了包括截至2026年9月30日季度业绩在内的多项信息。



	104	本 8-K 表格当前报告的封面页，以 Inline XBRL 格式编制。

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。

2026年10月22日


QUEST DIAGNOSTICS INCORPORATED

签署人：	/s/ Sean D. Mersten
	Sean D. Mersten
	副总裁兼公司秘书

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