Case Summary:

In re Quest Diagnostics ERISA Litigation is a putative ERISA class action in which participants in Quest’s profit‑sharing 401(k) plan challenge alleged fiduciary mismanagement of the plan, now on appeal in the United States Court of Appeals for the Third Circuit under docket number 24‑2866, argued on January 28, 2026.

At the lower‑court level in the District of New Jersey, participants and beneficiaries in the Quest Diagnostics Profit Sharing Plan sued Quest Diagnostics Incorporated, the Quest Benefits Administration Committee, and the Quest Investment Committee, alleging that these fiduciaries breached their duties of prudence and loyalty under ERISA by keeping underperforming, overly expensive investment options in the plan, permitting excessive recordkeeping and administrative fees, and failing to adequately disclose ...