Defense counsel in 1 case

Sean K. McMahan

Morgan, Lewis & Bockius (Dallas Office)

Address of record: 1717 Main Street, Suite 3200, Dallas, TX 75201, 214-466-4102
Email: sean.mcmahan@morganlewis.com
Phone: (214) 466-4102
Fax: Fax 214-466-4001

Contact details as filed with the court in the cases below.

Cases tracked

1 active · 0 settled

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Plaintiff-side recovery

Disclosed settlement funds

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Defense-side exposure

Resolved in settlements

Cases with values

of 1 tracked

Case history

Publicly tracked matters where this attorney is listed as counsel.

Defense counselActive litigation — no settlement yet

Boyd v. OneOncology ERISA Class Action

This is a proposed class action alleging violations under ERISA, the federal law governing employee benefit plans. The case appears to involve employment-related claims concerning benefit plan administration at OneOncology, LLC, and could affect employees or beneficiaries of the company's health, retirement, or other benefit plans.

Filed: March 19, 2026
Represents: OneOncology, LLC

“Recovery” and “exposure” refer to total disclosed settlement funds in associated cases, not money personally won or lost by an attorney. Settlements generally resolve disputed allegations without a finding that either side won. Data comes from public court dockets and may be incomplete.