QUANTUMONLINE.COM SECURITY DESCRIPTION:  T-Mobile US, Inc., 5.50% Mandatory Convertible Preferred Stock, Series A, liquidation preference $50 per share. The preferred shares are mandatorily convertible on 12/15/2017 into a variable number of T-Mobile US, Inc. (NYSE: TMUS) common shares based on the then current price of the common shares for 20 consecutive trading days immediately prior to the conversion date. The conversion settlement rate will be 1.6119 shares per unit if the then current market price is equal to or greater than $31.02 and 1.9342 shares per unit if the market price is equal to or less than $25.85. For market prices between those values the settlement rate will be $50 divided by the market value. The last reported sale price of the common stock on 12/9/2014 was $25.85 per share. The preferred shares are convertible any time at the holder’s option into 1.6119 shares of common stock. Distributions of 5.50% per annum ($2.75 per annum or $0.6875 per quarter) will be paid quarterly on 3/15, 6/15, 9/15 & 12/15 to holders of record on the record date that will be the 1st calendar day of the month in which the payment date falls or the record date fixed by the board, not more than 60 days or less than 10 days prior to the payment date (NOTE: the ex-dividend date is at least 2 business days prior to the record date). If holders elect to convert their shares upon the occurrence of a fundamental change or a reorganization event, such shares will be converted into shares of common stock at the fundamental change conversion rate and the holders will also be entitled to receive a fundamental change dividend make-whole amount and accumulated dividend amount (see prospectus for further details). Dividends paid by this preferred are eligible for a preferential income tax rate of 15% to a maximum of 20% depending on the holder's tax bracket (and under normal holding restrictions) and are also eligible for the dividends received deduction for corporate holders (see page S-61 of the prospectus for further information). In regard to the payment of dividends and upon liquidation, the preferred shares rank junior to the company's senior debt, equally with other preferreds of the company, and senior to the common shares of the company. See the IPO prospectus for further information on the mandatory convertible preferred stock and their mandatory conversion provisions by clicking on the ‘Link to IPO Prospectus’ provided below.

Stock Exchange	Cpn Rate Ann Amt	LiqPref CallPrice	Call Date Matur Date	Moodys/S&P Dated	Conversion Shares@Price	Distribution Dates	15% Tax Rate
NGS Chart	5.50% $2.75	$50.00 N/A	12/15/2017 12/15/2017	NF NF 12/30/2017	1.6119@$31.02+ 1.9342@$25.85-	3/15, 6/15, 9/15 & 12/15 Click for MW ExDiv Date Click for Yahoo ExDiv Date	YES

Company's Online Information Links

HOME PAGE:     http://www.t-mobile.com/
Company's Investor Relations Information	Go to Investor Relations Information
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Online Company Profile	Go to Online Profile

Company's Online SEC EDGAR Filings

Company's SEC EDGAR Filings

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Company's Email Address Links

Email Address

investor.relations@t-mobile.com

Address and Phone Numbers

Address:   12920 SE 38th Street, Bellevue, WA 98006
Main Phone Number	425-378-4000
Fax Number	Not Available
Investor Relations   Nils Paellmann	212-358-3210
Toll Free Phone Number	877-281-8687

CEO -  John J. Legere

CFO - J. Braxton Carter