Osvaldik Peter 4

4 · T-Mobile US, Inc. · Filed Feb 18, 2026

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Updated Feb 18, 2026

T‑Mobile (TMUS) CFO Peter Osvaldik Receives Awards; Shares Withheld for Taxes

What Happened

Peter Osvaldik, Chief Financial Officer of T‑Mobile US, received two equity awards on Feb 15, 2026 totaling 31,373 restricted stock units (19,086 and 12,287 shares) at $0.00 per share. On the same date, a total of 12,909.951 shares were withheld to satisfy tax obligations related to vesting (8,075.016 shares and 4,834.935 shares), disposed at $219.50 per share for combined proceeds/withholding value of $2,833,734 (not an open‑market sale).

Key Details

Transaction date: February 15, 2026. Form 4 filed February 18, 2026.
Grants: 19,086 RSUs and 12,287 RSUs granted (acquired at $0.00).
Tax withholding (disposals): 8,075.016 shares ($1,772,466) and 4,834.935 shares ($1,061,268) — total ~12,909.951 shares withheld, $2,833,734 at $219.50/share.
Footnotes of note:
- Time‑vesting RSUs granted under the 2023 Incentive Award Plan vest one‑third on Feb 15 of 2027, 2028 and 2029.
- A portion represents performance‑based RSUs that vested on Feb 15, 2026 based on relative total shareholder return over the prior three years.
- Shares withheld to cover taxes were not sold in the open market (routine tax withholding).
Shares owned following the transaction: not specified in the filing.

Context

These entries are primarily compensation grants and routine tax‑withholding on vesting. The grants (A) increase potential future equity ownership subject to vesting; the withheld shares (F) are tax payments, not discretionary open‑market sales. Such filings document insider compensation and tax mechanics rather than a direct buy/sell market signal.

Form 4

Period: 2026-02-15

Chief Financial Officer

Transactions

Award
Common Stock
[F1]
2026-02-15+19,086→ 79,195.615 total
Tax Payment
Common Stock
[F2]
2026-02-15$219.50/sh−8,075.016$1,772,466→ 71,120.599 total
Award
Common Stock
[F3]
2026-02-15+12,287→ 83,407.599 total
Tax Payment
Common Stock
[F4]
2026-02-15$219.50/sh−4,834.935$1,061,268→ 78,572.664 total

Footnotes (4)

[F1]Represents restricted stock units granted under the issuer's 2023 Incentive Award Plan, (the "Plan"); one-third of the units vest on each of February 15, 2027, February 15, 2028 and February 15, 2029, subject to the terms of the Plan and related award agreement.
[F2]Represents shares withheld for payment of taxes on vesting of restricted stock units; not an open market transaction.
[F3]Represents performance-based restricted stock units earned under the issuer's 2013 Omnibus Incentive Plan that vested on February 15, 2026 based on the Company's relative total shareholder return during the three-year period ending February 15, 2026.
[F4]Represents shares withheld for payment of taxes on vesting of performance-based restricted stock units; not an open market transaction.

Signature

/s/ Frederick Williams, Attorney-in-Fact|2026-02-18

1 file