T-Mobile Chief Accounting Officer Sells 113 Shares via Rule 10b5-1 Plan

Executive Summary

On November 3, 2026, Daniel James Drobac, VP & Chief Accounting Officer of T-Mobile US, Inc. ($TMUS), reported two transactions involving common stock:

1. Tax Withholding (Code F): On November 1, 2026, 36.525 shares were withheld at $156.44 per share to cover tax obligations resulting from the vesting of restricted stock units.
2. Open Market Sale (Code S): On November 2, 2026, 113 shares were sold at $154.18 per share, generating gross proceeds of $17,422.34.

Following these transactions, Mr. Drobac directly holds 37,737.781 shares of common stock.

Transaction Breakdown

• Pre-Arranged Trading Plan: The sale of 113 shares was executed pursuant to a Rule 10b5-1 trading plan established on June 12, 2026.
• Tax Withholding: The disposition of 36.525 shares was not an open market trade, but an automated withholding for statutory tax obligations upon RSU settlement.

Market Significance

This filing carries Low trading significance given the minimal dollar volume ($17,422.34 open-market sale) representing less than 0.3% of the reporting person's total equity holdings, alongside execution under an established Rule 10b5-1 trading plan.