Quest Diagnostics Clinical Laboratories 401(k) plan

Quest Diagnostics Clinical Laboratories, Inc., Secaucus, NJ. EIN 38-2084239. Annual reports 2009–2025. Also filed as Quest Diagnostics Incorporated.

Quest Diagnostics Clinical Laboratories, Inc. has one active retirement plan on file, the The Quest Diagnostics Profit Sharing Plan, with 63,189 participants and $6.2 billion in assets in 2025. Fidelity has been its recordkeeper since 2009. No traditional pension plan appears in Quest Diagnostics Clinical Laboratories's filings since 2009.

Active plans: 1
Participants: 63,189
Plan assets: $6.2 billion
401(k) recordkeeper: Fidelity
Plans on file: 1
Industry: Health care

The plan

The Quest Diagnostics Profit Sharing Plan

401(k) with ESOPActive

Active. The plan filed its annual report for the 2025 plan year.

Plan number: 333Employer EIN 38-2084239
Participants (2025): 63,189
Net assets (2025): $6.2 billion
Recordkeeper: Fidelity2009–2025
Plan administrator: Quest Diagnostics Clinical Laboratories, Inc.
500 Plaza Drive
Secaucus, NJ 07094
(201) 729-8534As filed for 2025
In effect since: October 1, 1973

Plans merged into this one: 401(k) Savings Plan of Quest Diagnostics Incorporated (2015).

Earlier sponsor: Quest Diagnostics Incorporated (2009–2020).

Earlier plan names: The Profit Sharing Plan of Quest Diagnostics Incorporated.

Year by year, 2009 to 2025

Plan year	Participants	Net assets	Recordkeeper
2025	63,189	$6.2 billion	Fidelity
2024	62,875	$5.6 billion	Fidelity
2023	61,319	$5.1 billion	Fidelity
2022	61,840	$4.6 billion	Fidelity
2021	60,942	$5.7 billion	Fidelity
2020	60,071	$5.0 billion	Fidelity
2019	57,226	$4.6 billion	Fidelity
2018	55,888	$3.9 billion	Fidelity
2017	55,978	$4.2 billion	Fidelity
2016	55,067	$3.7 billion	Fidelity
2015	54,954	$3.5 billion	Fidelity
2014	51,890	$3.3 billion	not listed
2013	48,217	$3.1 billion	Fidelity
2012	47,702	$2.8 billion	Fidelity
2011	48,314	$2.5 billion	Fidelity
2010	48,219	$2.5 billion	Fidelity
2009	49,359	$2.3 billion	Fidelity

If you had money in one of these plans

Call Fidelity (fidelity.com), which runs the The Quest Diagnostics Profit Sharing Plan. With your Social Security number and the plan name, it can tell you whether you still have a balance and, if not, where it went.
Or call the plan administrator listed on the plan below ((201) 729-8534). That number was filed for 2025; ask for the benefits or retirement plan office.
Still stuck? The Department of Labor's benefits advisers help for free: askebsa.dol.gov or 1-866-444-3272. Never pay anyone to find your own money.

What these numbers are

They come from the Form 5500 annual reports each plan files with the Department of Labor, as the plan filed them. A plan year is usually a calendar year.
Participants counts everyone in the plan at year end: current employees, former employees who still have a balance or a pension coming, and retirees or beneficiaries being paid.
The recordkeeper is the service provider whose Schedule C entry says it keeps the plan's records. Small plans do not file Schedule C, so some plans show none.
We cannot see anyone's account. Only the plan or its recordkeeper can tell you your balance.

Sources: U.S. Department of Labor, Form 5500 datasets and PBGC trusteed plans. How we read them.

The plan

The Quest Diagnostics Profit Sharing Plan

If you had money in one of these plans

What these numbers are

Other health care employers in NJ