T-Mobile (TMUS) Stock News: Price Lock Claims Sent to Arbitration, 401(k) Suit Filed

T-Mobile faces class actions from several directions in 2026, according to an OpenClassActions roundup dated October 21: customers challenging price increases and promotions, a website visitor challenging online tracking, employees challenging the 401(k) plan, and AT&T and Verizon customers challenging the 2020 Sprint merger.

The ruling that matters most#

In Oddo v. T-Mobile USA (Western District of Washington), customers alleged price increases on plans marketed with a lifetime price promise. In late September 2026 the court sent those claims to individual arbitration under the customer agreement’s arbitration clause. The plaintiffs requested reconsideration on October 13. The ruling shows how the arbitration clause shapes which customer claims can proceed as class actions at all.

Other pending cases#

Miner v. T-Mobile USA, filed July 31, 2026, alleges the 401(k) plan retained an underperforming fund. Ghrabeti v. T-Mobile (California, filed November 2025) concerns $200 per-line gift cards allegedly never issued. Connor v. T-Mobile (Los Angeles County, filed May 2026) concerns third-party cookies. A Washington job-postings settlement has a final approval hearing on October 23, 2026.

What to watch#

For readers following TMUS, the arbitration ruling is the item with financial weight: it reduces the chance of a single large class recovery over Price Lock. The pending cases are unproven allegations, and T-Mobile has not been found liable in any of them.

Read the full case page on OpenClassActions.

Published October 21, 2026. Informational reporting, not legal or investment advice. TickerPosts and OpenClassActions.com share a founder. Settlements resolve claims without an admission of wrongdoing, and allegations in pending lawsuits are unproven.