TMUS

SEC source: 0001283699-21-000026 · wf-form4_161359674861429.xml · nonDerivative · entry 2

SIEVERT G MICHAEL · CIK 0001182438 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 790,002

F2 · shares: Represents shares withheld for payment of taxes on vesting of restricted stock units and performance-based restricted stock units; not an open market transaction.

SEC source: 0001283699-21-000026 · wf-form4_161359674861429.xml · nonDerivative · entry 1

SIEVERT G MICHAEL · CIK 0001182438 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 852,454

F1 · shares: Represents performance-based restricted stock units earned under the issuer's 2013 Omnibus Incentive Plan that vested on February 15, 2021 based on the Company's relative total shareholder return during the three-year period ending February 15, 2021.

SEC source: 0001283699-21-000027 · wf-form4_161359689426229.xml · nonDerivative · entry 2

Miller David A · CIK 0001576259 · EVP, General Counsel & Sec.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 178,758

F2 · shares: Represents shares withheld for payment of taxes on vesting of restricted stock units and performance-based restricted stock units; not an open market transaction.

SEC source: 0001283699-21-000027 · wf-form4_161359689426229.xml · nonDerivative · entry 1

Miller David A · CIK 0001576259 · EVP, General Counsel & Sec.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 231,476

F1 · shares: Represents performance-based restricted stock units earned under the issuer's 2013 Omnibus Incentive Plan that vested on February 15, 2021 based on the Company's relative total shareholder return during the three-year period ending February 15, 2021.

SEC source: 0001283699-21-000025 · wf-form4_161359656764113.xml · nonDerivative · entry 2

Ray Neville R · CIK 0001576185 · President, Technology

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 566,596

F2 · shares: Represents shares withheld for payment of taxes on vesting of restricted stock units and performance-based restricted stock units; not an open market transaction.

SEC source: 0001283699-21-000025 · wf-form4_161359656764113.xml · nonDerivative · entry 1

Ray Neville R · CIK 0001576185 · President, Technology

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 638,533

F1 · shares: Represents performance-based restricted stock units earned under the issuer's 2013 Omnibus Incentive Plan that vested on February 15, 2021 based on the Company's relative total shareholder return during the three-year period ending February 15, 2021.

SEC source: 0001283699-21-000024 · wf-form4_161359642356946.xml · nonDerivative · entry 2

Osvaldik Peter · CIK 0001596235 · EVP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,120

F2 · shares: Represents shares withheld for payment of taxes on vesting of restricted stock units and performance-based restricted stock units; not an open market transaction.

SEC source: 0001283699-21-000024 · wf-form4_161359642356946.xml · nonDerivative · entry 1

Osvaldik Peter · CIK 0001596235 · EVP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,926

F1 · shares: Represents performance-based restricted stock units earned under the issuer's 2013 Omnibus Incentive Plan that vested on February 15, 2021 based on the Company's relative total shareholder return during the three-year period ending February 15, 2021.

SEC source: 0001283699-21-000022 · wf-form4_161359621100299.xml · nonDerivative · entry 2

Ewens Peter A · CIK 0001576183 · EVP, Corporate Strategy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,904

F2 · shares: Represents shares withheld for payment of taxes on vesting of restricted stock units and performance-based restricted stock units; not an open market transaction.

SEC source: 0001283699-21-000022 · wf-form4_161359621100299.xml · nonDerivative · entry 1

Ewens Peter A · CIK 0001576183 · EVP, Corporate Strategy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 181,785

F1 · shares: Represents performance-based restricted stock units earned under the issuer's 2013 Omnibus Incentive Plan that vested on February 15, 2021 based on the Company's relative total shareholder return during the three-year period ending February 15, 2021.

SEC source: 0001283699-21-000015 · wf-form5_161316399086694.xml · nonDerivative · entry 1

SIEVERT G MICHAEL · CIK 0001182438 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 765,467

SEC source: 0001283699-20-000210 · wf-form4_160755262197993.xml · nonDerivative · entry 2

Miller David A · CIK 0001576259 · EVP, General Counsel & Sec.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 121,142

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 20, 2020.

SEC source: 0001283699-20-000210 · wf-form4_160755262197993.xml · nonDerivative · entry 1

Miller David A · CIK 0001576259 · EVP, General Counsel & Sec.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 126,142

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 20, 2020.

SEC source: 0001283699-21-000014 · wf-form5_161316389226645.xml · nonDerivative · entry 1

Ray Neville R · CIK 0001576185 · President, Technology

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 500,424

SEC source: 0001283699-20-000202 · wf-form4_160565032061891.xml · nonDerivative · entry 1

Staneff Matthew A. · CIK 0001808297 · EVP, Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,972

F1 · kind: Represents shares withheld for payment of taxes on vesting of restricted stock units; not an open market transaction.

SEC source: 0001283699-20-000200 · wf-form4_160504691223131.xml · nonDerivative · entry 1

Staneff Matthew A. · CIK 0001808297 · EVP, Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,904

F1 · kind: The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 14, 2020.

SEC source: 0001283699-20-000180 · wf-form4_160271099965137.xml · nonDerivative · entry 1

Miller David A · CIK 0001576259 · EVP, General Counsel & Sec.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 136,142

F1 · kind: The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 20, 2020.

SEC source: 0001283699-20-000178 · wf-form4_160218854919504.xml · nonDerivative · entry 2

Miller David A · CIK 0001576259 · EVP, General Counsel & Sec.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 146,142

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 20, 2020.

SEC source: 0000950157-20-001236 · form4.xml · derivative · entry 2

Deutsche Telekom Holding B.V. · CIK 0001597213 · Director · 10% owner

T-Mobile Global Holding GmbH · CIK 0001576360 · Director · 10% owner

T-Mobile Global Zwischenholding GmbH · CIK 0001576359 · Director · 10% owner

DEUTSCHE TELEKOM AG · CIK 0000946770 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,905,479

Underlying: Common Stock · 44,905,479 shares

Expires 2024-06-22

F1 · kind: On October 6, 2020, (a) T-Mobile Agent LLC ("T-Mobile Agent"), a wholly-owned subsidiary of the Issuer, assigned and transferred to Deutsche Telekom AG ("DT"), and DT accepted, T-Mobile Agent's rights and obligations under the SB-Newco Call Option, dated June 22, 2020, between Delaware Project 6 L.L.C. ("Project 6"), as grantor, and T-Mobile Agent, as optionholder (the "SB-Newco Call Option"), (b) in accordance with the terms of the SB-Newco Call Option, Project 6 issued and delivered to DT a replacement SB-Newco Call Option, between Project 6, as grantor, and DT, as optionholder, and (c) in consideration therefor, the Newco-DT Call Option, dated June 22, 2020, between T-Mobile Agent, as grantor, SoftBank Group Capital Ltd, as registrar, and DT, as optionholder, was deemed surrendered, exchanged and replaced in full.

F1 · price: On October 6, 2020, (a) T-Mobile Agent LLC ("T-Mobile Agent"), a wholly-owned subsidiary of the Issuer, assigned and transferred to Deutsche Telekom AG ("DT"), and DT accepted, T-Mobile Agent's rights and obligations under the SB-Newco Call Option, dated June 22, 2020, between Delaware Project 6 L.L.C. ("Project 6"), as grantor, and T-Mobile Agent, as optionholder (the "SB-Newco Call Option"), (b) in accordance with the terms of the SB-Newco Call Option, Project 6 issued and delivered to DT a replacement SB-Newco Call Option, between Project 6, as grantor, and DT, as optionholder, and (c) in consideration therefor, the Newco-DT Call Option, dated June 22, 2020, between T-Mobile Agent, as grantor, SoftBank Group Capital Ltd, as registrar, and DT, as optionholder, was deemed surrendered, exchanged and replaced in full.

F3 · ownership.direct: The derivative securities are directly held by DT.

SEC source: 0000950157-20-001236 · form4.xml · derivative · entry 1

Deutsche Telekom Holding B.V. · CIK 0001597213 · Director · 10% owner

T-Mobile Global Holding GmbH · CIK 0001576360 · Director · 10% owner

T-Mobile Global Zwischenholding GmbH · CIK 0001576359 · Director · 10% owner

DEUTSCHE TELEKOM AG · CIK 0000946770 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,905,479

Underlying: Common Stock · 44,905,479 shares

Expires 2024-06-22

F1 · kind: On October 6, 2020, (a) T-Mobile Agent LLC ("T-Mobile Agent"), a wholly-owned subsidiary of the Issuer, assigned and transferred to Deutsche Telekom AG ("DT"), and DT accepted, T-Mobile Agent's rights and obligations under the SB-Newco Call Option, dated June 22, 2020, between Delaware Project 6 L.L.C. ("Project 6"), as grantor, and T-Mobile Agent, as optionholder (the "SB-Newco Call Option"), (b) in accordance with the terms of the SB-Newco Call Option, Project 6 issued and delivered to DT a replacement SB-Newco Call Option, between Project 6, as grantor, and DT, as optionholder, and (c) in consideration therefor, the Newco-DT Call Option, dated June 22, 2020, between T-Mobile Agent, as grantor, SoftBank Group Capital Ltd, as registrar, and DT, as optionholder, was deemed surrendered, exchanged and replaced in full.

F1 · price: On October 6, 2020, (a) T-Mobile Agent LLC ("T-Mobile Agent"), a wholly-owned subsidiary of the Issuer, assigned and transferred to Deutsche Telekom AG ("DT"), and DT accepted, T-Mobile Agent's rights and obligations under the SB-Newco Call Option, dated June 22, 2020, between Delaware Project 6 L.L.C. ("Project 6"), as grantor, and T-Mobile Agent, as optionholder (the "SB-Newco Call Option"), (b) in accordance with the terms of the SB-Newco Call Option, Project 6 issued and delivered to DT a replacement SB-Newco Call Option, between Project 6, as grantor, and DT, as optionholder, and (c) in consideration therefor, the Newco-DT Call Option, dated June 22, 2020, between T-Mobile Agent, as grantor, SoftBank Group Capital Ltd, as registrar, and DT, as optionholder, was deemed surrendered, exchanged and replaced in full.

F2 · ownership.direct: The derivative securities were directly held by DT.

SEC source: 0001209191-20-054097 · doc4.xml · derivative · entry 2

SOFTBANK GROUP CORP · CIK 0001065521 · Director

Delaware Project 6 L.L.C. · CIK 0001815949 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By: Delaware Project 6 L.L.C.

Disclosed balance after: 44,905,479

Underlying: Common Stock · 44,905,479 shares

Expires 2024-06-22

F2 · kind: In connection with the transactions between or among SoftBank, Deutsche Telekom AG ("DT"), Claure Mobile LLC (the "Executive Purchaser"), SoftBank Group Capital Ltd. ("SBGC"), Delaware Project 4 L.L.C. ("Project 4 LLC") and Project 6 LLC (together with SoftBank, SBGC and Project 4 LLC, the "SoftBank Parties") and the Issuer as described in the Master Framework Agreement by and among the SoftBank Parties, DT, the Executive Purchaser and the Issuer, dated June 22, 2020 (the "Master Framework Agreement"), DT granted its consent under the Proxy, Lock-Up and ROFR Agreement, dated April 1, 2020, by and between SoftBank and DT, to certain transactions contemplated by the Master Framework Agreement, pursuant to a consent letter between DT and SoftBank, dated June 22, 2020 (the "Proxy Agreement Consent"). (continued in footnote (3))

F3 · kind: As a portion of the consideration for the Proxy Agreement Consent and as part of the transactions contemplated by the Master Framework Agreement, SBGC wrote the option to a subsidiary of the Issuer, which, in turn, wrote a back-to-back call option to DT. SBGC subsequently assigned its obligations under the option to Project 6 LLC, a wholly-owned subsidiary of SoftBank. As contemplated by the terms of each option written in June 2020, on October 6, 2020, each of the option written to a subsidiary of the Issuer and the DT back-to-back call option were cancelled and Project 6 LLC issued the call option directly to DT. Because Project 6 LLC's pecuniary interest in the call option remains unchanged, Project 6 LLC disclaims the applicability of Section 16 to these transactions.

F2 · shares: In connection with the transactions between or among SoftBank, Deutsche Telekom AG ("DT"), Claure Mobile LLC (the "Executive Purchaser"), SoftBank Group Capital Ltd. ("SBGC"), Delaware Project 4 L.L.C. ("Project 4 LLC") and Project 6 LLC (together with SoftBank, SBGC and Project 4 LLC, the "SoftBank Parties") and the Issuer as described in the Master Framework Agreement by and among the SoftBank Parties, DT, the Executive Purchaser and the Issuer, dated June 22, 2020 (the "Master Framework Agreement"), DT granted its consent under the Proxy, Lock-Up and ROFR Agreement, dated April 1, 2020, by and between SoftBank and DT, to certain transactions contemplated by the Master Framework Agreement, pursuant to a consent letter between DT and SoftBank, dated June 22, 2020 (the "Proxy Agreement Consent"). (continued in footnote (3))

F3 · shares: As a portion of the consideration for the Proxy Agreement Consent and as part of the transactions contemplated by the Master Framework Agreement, SBGC wrote the option to a subsidiary of the Issuer, which, in turn, wrote a back-to-back call option to DT. SBGC subsequently assigned its obligations under the option to Project 6 LLC, a wholly-owned subsidiary of SoftBank. As contemplated by the terms of each option written in June 2020, on October 6, 2020, each of the option written to a subsidiary of the Issuer and the DT back-to-back call option were cancelled and Project 6 LLC issued the call option directly to DT. Because Project 6 LLC's pecuniary interest in the call option remains unchanged, Project 6 LLC disclaims the applicability of Section 16 to these transactions.

F2 · price: In connection with the transactions between or among SoftBank, Deutsche Telekom AG ("DT"), Claure Mobile LLC (the "Executive Purchaser"), SoftBank Group Capital Ltd. ("SBGC"), Delaware Project 4 L.L.C. ("Project 4 LLC") and Project 6 LLC (together with SoftBank, SBGC and Project 4 LLC, the "SoftBank Parties") and the Issuer as described in the Master Framework Agreement by and among the SoftBank Parties, DT, the Executive Purchaser and the Issuer, dated June 22, 2020 (the "Master Framework Agreement"), DT granted its consent under the Proxy, Lock-Up and ROFR Agreement, dated April 1, 2020, by and between SoftBank and DT, to certain transactions contemplated by the Master Framework Agreement, pursuant to a consent letter between DT and SoftBank, dated June 22, 2020 (the "Proxy Agreement Consent"). (continued in footnote (3))

F3 · price: As a portion of the consideration for the Proxy Agreement Consent and as part of the transactions contemplated by the Master Framework Agreement, SBGC wrote the option to a subsidiary of the Issuer, which, in turn, wrote a back-to-back call option to DT. SBGC subsequently assigned its obligations under the option to Project 6 LLC, a wholly-owned subsidiary of SoftBank. As contemplated by the terms of each option written in June 2020, on October 6, 2020, each of the option written to a subsidiary of the Issuer and the DT back-to-back call option were cancelled and Project 6 LLC issued the call option directly to DT. Because Project 6 LLC's pecuniary interest in the call option remains unchanged, Project 6 LLC disclaims the applicability of Section 16 to these transactions.

SEC source: 0001209191-20-054097 · doc4.xml · derivative · entry 1

SOFTBANK GROUP CORP · CIK 0001065521 · Director

Delaware Project 6 L.L.C. · CIK 0001815949 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By: Delaware Project 6 L.L.C.

Disclosed balance after: 0

Underlying: Common Stock · 44,905,479 shares

Expires 2024-06-22

F1 · kind: Marcelo Claure and Stephen Kappes, each members of the Board of Directors of the Issuer, were elected as representatives of SoftBank Group Corp. ("SoftBank") and Delaware Project 6 L.L.C. ("Project 6 LLC"). As a result each of these entities is a director by deputization for Section 16 purposes.

F2 · kind: In connection with the transactions between or among SoftBank, Deutsche Telekom AG ("DT"), Claure Mobile LLC (the "Executive Purchaser"), SoftBank Group Capital Ltd. ("SBGC"), Delaware Project 4 L.L.C. ("Project 4 LLC") and Project 6 LLC (together with SoftBank, SBGC and Project 4 LLC, the "SoftBank Parties") and the Issuer as described in the Master Framework Agreement by and among the SoftBank Parties, DT, the Executive Purchaser and the Issuer, dated June 22, 2020 (the "Master Framework Agreement"), DT granted its consent under the Proxy, Lock-Up and ROFR Agreement, dated April 1, 2020, by and between SoftBank and DT, to certain transactions contemplated by the Master Framework Agreement, pursuant to a consent letter between DT and SoftBank, dated June 22, 2020 (the "Proxy Agreement Consent"). (continued in footnote (3))

F3 · kind: As a portion of the consideration for the Proxy Agreement Consent and as part of the transactions contemplated by the Master Framework Agreement, SBGC wrote the option to a subsidiary of the Issuer, which, in turn, wrote a back-to-back call option to DT. SBGC subsequently assigned its obligations under the option to Project 6 LLC, a wholly-owned subsidiary of SoftBank. As contemplated by the terms of each option written in June 2020, on October 6, 2020, each of the option written to a subsidiary of the Issuer and the DT back-to-back call option were cancelled and Project 6 LLC issued the call option directly to DT. Because Project 6 LLC's pecuniary interest in the call option remains unchanged, Project 6 LLC disclaims the applicability of Section 16 to these transactions.

F2 · shares: In connection with the transactions between or among SoftBank, Deutsche Telekom AG ("DT"), Claure Mobile LLC (the "Executive Purchaser"), SoftBank Group Capital Ltd. ("SBGC"), Delaware Project 4 L.L.C. ("Project 4 LLC") and Project 6 LLC (together with SoftBank, SBGC and Project 4 LLC, the "SoftBank Parties") and the Issuer as described in the Master Framework Agreement by and among the SoftBank Parties, DT, the Executive Purchaser and the Issuer, dated June 22, 2020 (the "Master Framework Agreement"), DT granted its consent under the Proxy, Lock-Up and ROFR Agreement, dated April 1, 2020, by and between SoftBank and DT, to certain transactions contemplated by the Master Framework Agreement, pursuant to a consent letter between DT and SoftBank, dated June 22, 2020 (the "Proxy Agreement Consent"). (continued in footnote (3))

F3 · shares: As a portion of the consideration for the Proxy Agreement Consent and as part of the transactions contemplated by the Master Framework Agreement, SBGC wrote the option to a subsidiary of the Issuer, which, in turn, wrote a back-to-back call option to DT. SBGC subsequently assigned its obligations under the option to Project 6 LLC, a wholly-owned subsidiary of SoftBank. As contemplated by the terms of each option written in June 2020, on October 6, 2020, each of the option written to a subsidiary of the Issuer and the DT back-to-back call option were cancelled and Project 6 LLC issued the call option directly to DT. Because Project 6 LLC's pecuniary interest in the call option remains unchanged, Project 6 LLC disclaims the applicability of Section 16 to these transactions.

F2 · price: In connection with the transactions between or among SoftBank, Deutsche Telekom AG ("DT"), Claure Mobile LLC (the "Executive Purchaser"), SoftBank Group Capital Ltd. ("SBGC"), Delaware Project 4 L.L.C. ("Project 4 LLC") and Project 6 LLC (together with SoftBank, SBGC and Project 4 LLC, the "SoftBank Parties") and the Issuer as described in the Master Framework Agreement by and among the SoftBank Parties, DT, the Executive Purchaser and the Issuer, dated June 22, 2020 (the "Master Framework Agreement"), DT granted its consent under the Proxy, Lock-Up and ROFR Agreement, dated April 1, 2020, by and between SoftBank and DT, to certain transactions contemplated by the Master Framework Agreement, pursuant to a consent letter between DT and SoftBank, dated June 22, 2020 (the "Proxy Agreement Consent"). (continued in footnote (3))

F3 · price: As a portion of the consideration for the Proxy Agreement Consent and as part of the transactions contemplated by the Master Framework Agreement, SBGC wrote the option to a subsidiary of the Issuer, which, in turn, wrote a back-to-back call option to DT. SBGC subsequently assigned its obligations under the option to Project 6 LLC, a wholly-owned subsidiary of SoftBank. As contemplated by the terms of each option written in June 2020, on October 6, 2020, each of the option written to a subsidiary of the Issuer and the DT back-to-back call option were cancelled and Project 6 LLC issued the call option directly to DT. Because Project 6 LLC's pecuniary interest in the call option remains unchanged, Project 6 LLC disclaims the applicability of Section 16 to these transactions.

SEC source: 0001283699-20-000178 · wf-form4_160218854919504.xml · nonDerivative · entry 1

Miller David A · CIK 0001576259 · EVP, General Counsel & Sec.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 151,142

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 20, 2020.

SEC source: 0001283699-20-000176 · wf-form4_160089344776250.xml · nonDerivative · entry 2

King Deeanne · CIK 0001808243 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,855

F2 · shares: Represents shares withheld for payment of taxes on vesting of performance-based restricted stock units; not an open market transaction.

SEC source: 0001283699-20-000176 · wf-form4_160089344776250.xml · nonDerivative · entry 1

King Deeanne · CIK 0001808243 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,696

F1 · shares: Represents performance-based restricted stock units earned under the 2015 Sprint Omnibus Plan, as amended (the "Plan"); these units vested on September 21, 2020, subject to the terms of the Plan and such award.

SEC source: 0001283699-20-000174 · wf-form4_159795674984004.xml · nonDerivative · entry 1

Staneff Matthew A. · CIK 0001808297 · EVP, Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,904

F1 · shares: Represents shares withheld for payment of taxes on vesting of restricted stock units; not an open market transaction.

SEC source: 0001283699-20-000169 · wf-form4_159735628602775.xml · nonDerivative · entry 2

Miller David A · CIK 0001576259 · EVP, General Counsel & Sec.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 161,142

F2 · price: The price reported in Column 4 is a weighted average exercise price. These shares were sold in multiple transactions at prices ranging from $115.371 to $116.195. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the range set forth on this footnote.

SEC source: 0001283699-20-000172 · wf-form4_159743746341930.xml · nonDerivative · entry 1

Staneff Matthew A. · CIK 0001808297 · EVP, Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,747

F1 · price: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $115.22 to $115.281. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the range set forth on this footnote.

SEC source: 0001283699-20-000169 · wf-form4_159735628602775.xml · nonDerivative · entry 1

Miller David A · CIK 0001576259 · EVP, General Counsel & Sec.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 181,142

F1 · price: The price reported in Column 4 is a weighted average exercise price. These shares were sold in multiple transactions at prices ranging from $113.76 to $114.88. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the range set forth on this footnote.

SEC source: 0001283699-20-000154 · wf-form4_159605814776635.xml · derivative · entry 2

Taylor Teresa · CIK 0001443289 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,917

Underlying: Common Stock · 24,100 shares

Expires not disclosed

F2 · security: The subscription rights exercised were distributed by T-Mobile US, Inc. in a transaction exempt under Exchange Act Rule 16a-9(b).

F3 · derivative.exercise_date: The rights offering commenced on June 26, 2020.

F4 · derivative.expiration_date: The rights offering will expire at 5:00 p.m., Eastern time, on July 27, 2020 unless extended by T-Mobile US, Inc.

SEC source: 0001283699-20-000154 · wf-form4_159605814776635.xml · nonDerivative · entry 1

Taylor Teresa · CIK 0001443289 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,618

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares acquired through the exercise of subscription rights, at a rate of .05 shares of common stock per subscription right exercised.

SEC source: 0000899243-20-020412 · doc4.xml · derivative · entry 2

WESTBROOK KELVIN R · CIK 0001190588 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,517

Underlying: Common Stock · 13,500 shares

Expires not disclosed

F2 · security: The subscription rights exercised were distributed by T-Mobile US, Inc. in a transaction exempt under Exchange Act Rule 16a-9(b).

F3 · derivative.exercise_date: The rights offering commenced on June 26, 2020.

F4 · derivative.expiration_date: The rights offering will expire at 5:00 p.m., Eastern time, on July 27, 2020 unless extended by T-Mobile US, Inc.

SEC source: 0000899243-20-020412 · doc4.xml · nonDerivative · entry 1

WESTBROOK KELVIN R · CIK 0001190588 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,088

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares acquired through the exercise of subscription rights, at a rate of .05 shares of common stock per subscription right exercised.

SEC source: 0000899243-20-020240 · doc4.xml · derivative · entry 3

CLAURE RAUL MARCELO · CIK 0001388687 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 302,457 shares

Expires 2024-08-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The stock option is fully vested.

SEC source: 0000899243-20-020240 · doc4.xml · nonDerivative · entry 1

CLAURE RAUL MARCELO · CIK 0001388687 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,034,791

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 512,800 restricted stock units, each of which represents a contingent right to receive one share of the Issuer's common stock.

SEC source: 0001283699-20-000152 · wf-form4_159544996487099.xml · nonDerivative · entry 1

Bazzano Dara · CIK 0001707112 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,547

F1 · shares: Represents restricted stock units granted under the issuer's 2013 Omnibus Incentive Plan, as amended (the "Plan"); one-third of the units vest on each of July 20, 2021, July 20, 2022 and July 20 2023, subject to the terms of the Plan and such award.

SEC source: 0001283699-20-000144 · wf-form4_159485420655593.xml · derivative · entry 8

Datar Srikant M. · CIK 0001376436 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Datar Investment LLC

Disclosed balance after: 0

Underlying: Common Stock · 4,000 shares

Expires not disclosed

F5 · derivative.exercise_date: The rights offering commenced on June 26, 2020.

F6 · derivative.expiration_date: The rights offering will expire at 5:00 p.m., Eastern time, on July 27, 2020 unless extended by T-Mobile US, Inc.

SEC source: 0001283699-20-000144 · wf-form4_159485420655593.xml · derivative · entry 7

Datar Srikant M. · CIK 0001376436 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Datar Investment LLC

Disclosed balance after: 4,000

Underlying: Common Stock · 4,000 shares

Expires not disclosed

F4 · security: The subscription rights sold were distributed by T-Mobile US, Inc. in a transaction exempt under Exchange Act Rule 16a-9(b).

F5 · derivative.exercise_date: The rights offering commenced on June 26, 2020.

F6 · derivative.expiration_date: The rights offering will expire at 5:00 p.m., Eastern time, on July 27, 2020 unless extended by T-Mobile US, Inc.

SEC source: 0001283699-20-000144 · wf-form4_159485420655593.xml · nonDerivative · entry 2

Datar Srikant M. · CIK 0001376436 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Datar Investment LLC

Disclosed balance after: 8,200

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares acquired through the exercise of subscription rights, at a rate of .05 shares of common stock per subscription right exercised.

F3 · ownership.nature: The reporting person and his spouse gifted all of the interests in Datar Investment LLC to trusts for the benefit of their adult children. The reporting person and his spouse continue to serve as managers of Datar Investment LLC. The reporting person disclaims beneficial ownership of the shares of T-Mobile US, Inc. common stock held by Safari LLC except to the extent of his pecuniary interest therein, if any.

SEC source: 0001283699-20-000146 · wf-form4_159493666547294.xml · derivative · entry 2

Guffey Lawrence · CIK 0001326406 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 27,000 shares

Expires not disclosed

F2 · security: The subscription rights exercised were distributed by T-Mobile US, Inc. in a transaction exempt under Exchange Act Rule 16a-9(b).

F3 · derivative.exercise_date: The rights offering commenced on June 26, 2020.

F4 · derivative.expiration_date: The rights offering will expire at 5:00 p.m., Eastern time, on July 27, 2020 unless extended by T-Mobile US, Inc.

SEC source: 0001283699-20-000146 · wf-form4_159493666547294.xml · nonDerivative · entry 1

Guffey Lawrence · CIK 0001326406 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,763

F1 · shares: Shares acquired through the exercise of subscription rights, at a rate of .05 shares of common stock per subscription right exercised.

SEC source: 0001283699-20-000142 · wf-form4_159485256553341.xml · derivative · entry 1

King Deeanne · CIK 0001808243 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,699 shares

Expires not disclosed

F1 · security: The subscription rights sold were distributed by T-Mobile US, Inc. in a transaction exempt under Exchange Act Rule 16a-9(b).

F4 · price: The price reported in Column 8 is a weighted average price. These subscription rights were sold in multiple transactions ranging from $0.23 to $0.232, inclusive. The reporting person undertakes to provide to the Securities and Exchange Commission, T-Mobile US, Inc. or any security holder of T-Mobile US, Inc., upon request, full information regarding the number of subscription rights sold at each separate price within the range.

F2 · derivative.exercise_date: The rights offering commenced on June 26, 2020.

F3 · derivative.expiration_date: The rights offering will expire at 5:00 p.m., Eastern time, on July 27, 2020 unless extended by T-Mobile US, Inc.

SEC source: 0001283699-20-000144 · wf-form4_159485420655593.xml · derivative · entry 6

Datar Srikant M. · CIK 0001376436 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Safari Investment LLC

Disclosed balance after: 0

Underlying: Common Stock · 6,000 shares

Expires not disclosed

F4 · security: The subscription rights sold were distributed by T-Mobile US, Inc. in a transaction exempt under Exchange Act Rule 16a-9(b).

F5 · derivative.exercise_date: The rights offering commenced on June 26, 2020.

F6 · derivative.expiration_date: The rights offering will expire at 5:00 p.m., Eastern time, on July 27, 2020 unless extended by T-Mobile US, Inc.

SEC source: 0001283699-20-000144 · wf-form4_159485420655593.xml · derivative · entry 5

Datar Srikant M. · CIK 0001376436 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Safari Investment LLC

Disclosed balance after: 6,000

Underlying: Common Stock · 7,424 shares

Expires not disclosed

F4 · security: The subscription rights sold were distributed by T-Mobile US, Inc. in a transaction exempt under Exchange Act Rule 16a-9(b).

F5 · derivative.exercise_date: The rights offering commenced on June 26, 2020.

F6 · derivative.expiration_date: The rights offering will expire at 5:00 p.m., Eastern time, on July 27, 2020 unless extended by T-Mobile US, Inc.

SEC source: 0001283699-20-000144 · wf-form4_159485420655593.xml · derivative · entry 4

Datar Srikant M. · CIK 0001376436 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 8,593 shares

Expires not disclosed

F4 · security: The subscription rights sold were distributed by T-Mobile US, Inc. in a transaction exempt under Exchange Act Rule 16a-9(b).

F7 · price: The price reported in Column 8 is a weighted average price. These subscription rights were sold in multiple transactions ranging from $0.17 to $0.172, inclusive. The reporting person undertakes to provide to the Securities and Exchange Commission, T-Mobile US, Inc. or any security holder of T-Mobile US, Inc., upon request, full information regarding the number of subscription rights sold at each separate price within the range.

F5 · derivative.exercise_date: The rights offering commenced on June 26, 2020.

F6 · derivative.expiration_date: The rights offering will expire at 5:00 p.m., Eastern time, on July 27, 2020 unless extended by T-Mobile US, Inc.

SEC source: 0001283699-20-000144 · wf-form4_159485420655593.xml · nonDerivative · entry 1

Datar Srikant M. · CIK 0001376436 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Safari LLC

Disclosed balance after: 13,724

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares acquired through the exercise of subscription rights, at a rate of .05 shares of common stock per subscription right exercised.

F2 · ownership.nature: The reporting person and his spouse gifted all of the interests in Safari LLC to trusts for the benefit of their adult children. The reporting person and his spouse continue to serve as managers of Safari LLC. The reporting person disclaims beneficial ownership of the shares of T-Mobile US, Inc. common stock held by Safari LLC except to the extent of his pecuniary interest therein, if any.

SEC source: 0001283699-20-000141 · wf-form4_159485251252888.xml · nonDerivative · entry 1

Ewens Peter A · CIK 0001576183 · EVP, Corporate Strategy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,077

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2 · price: The price reported in Column 4 is a weighted average exercise price. These shares were sold in multiple transactions at prices ranging from $104.26 to $107.52. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the range set forth on this footnote.

SEC source: 0001283699-20-000148 · wf-form4a_159501739426961.xml · derivative · entry 2

Datar Srikant M. · CIK 0001376436 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,593

Underlying: Common Stock · 5,000 shares

Expires not disclosed

F3 · security: The subscription rights exercised were distributed by T-Mobile US, Inc. in a transaction exempt under Exchange Act Rule 16a-9(b).

F2 · shares: The exercise of the subscription rights by the reporting person were inadvertently omitted from the original Form 4 filing.

F4 · derivative.exercise_date: The rights offering commenced on June 26, 2020.

F5 · derivative.expiration_date: The rights offering will expire at 5:00 p.m., Eastern time, on July 27, 2020 unless extended by T-Mobile US, Inc.

SEC source: 0001283699-20-000148 · wf-form4a_159501739426961.xml · nonDerivative · entry 1

Datar Srikant M. · CIK 0001376436 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,239

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares acquired through the exercise of subscription rights, at a rate of .05 shares of common stock per subscription right exercised.

F2 · shares: The exercise of the subscription rights by the reporting person were inadvertently omitted from the original Form 4 filing.

SEC source: 0001283699-20-000137 · wf-form4_159441557013581.xml · derivative · entry 1

Staneff Matthew A. · CIK 0001808297 · EVP, Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 25,790 shares

Expires not disclosed

F1 · security: The subscription rights sold were distributed by T-Mobile US, Inc. in a transaction exempt under Exchange Act Rule 16a-9(b).

F2 · derivative.exercise_date: The rights offering commenced on June 26, 2020.

F3 · derivative.expiration_date: The rights offering will expire at 5:00 p.m., Eastern time, on July 27, 2020 unless extended by T-Mobile US, Inc.