STOCK TITAN
  1. Home
  2. Sec-filings
  3. TMUS
  4. [Form 4] T-Mobile US, Inc. Insider Trading Activity

T-Mobile (NASDAQ: TMUS) insider shares withheld to cover RSU taxes

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

T-Mobile US, Inc. (TMUS) reported an insider tax-related share withholding by Daniel James Drobac, its VP & Chief Accounting Officer. On 2026-08-25, 171.425 shares of common stock were withheld at $181.61 per share to pay taxes on vesting of restricted stock units, not through an open-market sale. After this transaction, Drobac directly held 35,889.537 shares of TMUS common stock.

Positive

  • None.

Negative

  • None.
Insider Drobac Daniel James
Role VP & Chief Accounting Officer
Type Security Shares Price Value
Tax Withholding Common Stock F1 171.425 $181.61 $31K
Holdings After Transaction: Common Stock — 35,889.537 shares (Direct)
Footnotes (1)
  1. F1. Represents shares withheld for payment of taxes on vesting of restricted stock units; not an open market transaction.
Shares withheld for taxes 171.425 shares Common stock withheld on 2026-08-25 for payment of tax liability on RSU vesting
Withholding price per share $181.61 per share Price reported for the 171.425 shares withheld on 2026-08-25
Shares held after transaction 35,889.537 shares Total TMUS common shares directly held by Daniel James Drobac following the transaction
Code F tax-liability transactions 1 transaction; 171.425 shares Summary of Form 4 exercise-price-or-tax-liability dispositions
restricted stock units financial
"payment of taxes on vesting of restricted stock units; not an open"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
withheld for payment of taxes financial
"Represents shares withheld for payment of taxes on vesting"
non-derivative financial
""transaction_type": "non-derivative""
Rule 10b5-1 regulatory
"aff_10b5_one is the filing's document-level Rule 10b5-1 checkbox"
Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

What insider transaction did TMUS report for Daniel James Drobac?
T-Mobile US, Inc. reported that 171.425 TMUS common shares held by Daniel James Drobac were withheld on 2026-08-25 to pay taxes due on the vesting of restricted stock units, according to a Form 4 filing.

Was the TMUS insider transaction an open-market sale?
No. The filing states the 171.425 shares were withheld for payment of taxes upon RSU vesting and that this was not an open market transaction, distinguishing it from a discretionary sale into the market.

At what price were Daniel Drobac’s TMUS shares withheld for taxes?
The Form 4 reports that 171.425 TMUS shares were withheld at a price of $181.61 per share on 2026-08-25 for payment of tax liability associated with restricted stock unit vesting.

How many TMUS shares does Daniel Drobac hold after this transaction?
After the tax-withholding transaction, Daniel James Drobac directly holds 35,889.537 shares of T-Mobile US, Inc. common stock, as reported in the Form 4 under total shares following the transaction.

Was the TMUS insider tax-withholding done under a Rule 10b5-1 plan?
No. The document-level Rule 10b5-1 checkbox is unchecked (false), indicating the reported tax-withholding transaction was not affirmed as being made pursuant to a Rule 10b5-1 trading plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google
Add on Google
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Drobac Daniel James
(Last)(First)(Middle)
C/O T-MOBILE US, INC.
12920 SE 38TH STREET
(Street)
BELLEVUE WASHINGTON 98006
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
T-Mobile US, Inc. [ TMUS ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
VP & Chief Accounting Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/25/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock08/25/2026F171.425(1)D$181.6135,889.537D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Represents shares withheld for payment of taxes on vesting of restricted stock units; not an open market transaction.
Remarks:
/s/ Frederick Williams, Attorney-in-Fact08/27/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR