T-Mobile US, Inc. — Director's Dealing 2010

Mar 15, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: METROPCS COMMUNICATIONS INC (PCS)
CIK: 0001283699
Period of Report: 2010-03-11

Reporting Person: PATTERSON ARTHUR C (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-11	Common Stock	A	6000	—	Acquired	296899	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-03-11	Stock Option (right to buy)	$6.73	A	16800	Acquired	2020-03-11	Common Stock (16800)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1694409	Indirect
Common Stock	837441	Indirect
Common Stock	6777876	Indirect
Common Stock	2981967	Indirect
Common Stock	1880788	Indirect
Common Stock	436576	Indirect
Common Stock	436577	Indirect

Footnotes

F1: These shares of restricted stock vest over a period of three years upon the reporting person's completion of each quarter of service in a series of twelve (12) successive equal quarterly installments.

F2: The reporting person is affiliated with the following entities, and with such entities is deemed to be a member of a "group" under Section 13d-3 of the Securities Exchange Act of 1934, as amended: Accel Internet Fund III L.P., Accel Investors '99 L.P., ACP Family Partnership L.P., Accel VII L.P., Ellmore C. Patterson Partners, ACP 2007 ACCEL-7 GRAT U/A/D 4/2/07 and ACP 2007 ACCEL-10 GRAT U/A/D 4/2/07. The reporting person disclaims beneficial ownership of the securities held by such entities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F3: These shares are held directly by Accel Internet Fund III L.P. Accel Internet Fund III Associates L.P. is the general partner of Accel Internet Fund III L.P. and has sole voting and investment power. The reporting person, James R. Swartz, James W. Breyer, J. Peter Wagner and Theresia G. Ranzetta are the managing members of Accel Internet Fund III Associates L.P. and share such power.

F4: These shares are held directly by Accel Investors '99 L.P. The reporting person, James R. Swartz, James W. Breyer, and J. Peter Wagner are the general partners of Accel Investors '99 L.P. and share such power.

F5: These shares are held directly by Accel VII L.P. Accel VII Associates L.L.C. is the general partner of Accel VII L.P. and has sole voting and investment power. The reporting person, James R. Swartz, James W. Breyer, J. Peter Wagner and Theresia G. Ranzetta are the managing members of Accel VII Associates L.P. and share such power.

F6: These shares are held directly by ACP Family Partnership L.P. Members of the reporting person's immediate family are beneficial holders of ACP Family Partnership L.P., and the reporting person may be deemed to exercise voting and investment power over such shares.

F7: These shares are held directly by Ellmore C. Patterson Partners. The reporting person is a director of the general partner of Ellmore C. Patterson Partners.

F8: These shares are held directly by ACP 2007 Accel-7 GRAT U/A/D 4/2/07 of which the reporting person is the trustee.

F9: These shares are held directly by ACP 2007 Accel-10 GRAT U/A/D 4/2/07 of which the reporting person is the trustee.

F10: The option vests over a period of three years upon the reporting person's completion of each month of service in a series of thirty-six (36) successive equal monthly installments.