T-Mobile stock slides as report revives uncertainty around a potential Deutsche Telekom tie-up

T-Mobile US (TMUS) is down 4.7% today. Here is some analysis on what might have caused this price movement.

Analysis: TMUS appears to be trading lower after a high-profile report that its parent, Deutsche Telekom, is exploring an all-share structure to more fully combine the two companies. Even if strategic, the headline introduces uncertainty around execution, regulatory review, and potential dilution, which can pressure the stock in the near term.

Details:

Press reports described early-stage discussions around a full combination of Deutsche Telekom and T-Mobile US that could be structured via a new holding company making an all-share offer for both sets of shareholders.

Deutsche Telekom already owns roughly 53% of T-Mobile, so the concept would involve addressing the remaining public float while maintaining liquidity and governance for a much larger transatlantic entity.

The proposed transaction was framed as potentially record-setting in scale (roughly a $400B combined valuation), which raises investor focus on complexity, timing, and approval risk.

Separately, Deutsche Telekom previously said it had no plans to sell T-Mobile US shares in 2026, suggesting the market move is more about deal-structure uncertainty than an expected near-term stake sale.

Sources:

Reuters, Investing.com, Deutsche Telekom

Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

$TMUS Insider Trading Activity

$TMUS insiders have traded $TMUS stock on the open market 39 times in the past 6 months. Of those trades, 1 have been purchases and 38 have been sales.

Here’s a breakdown of recent trading of $TMUS stock by insiders over the last 6 months:

RAUL MARCELO CLAURE sold 550,000 shares for an estimated $119,663,500
TELEKOM AG DEUTSCHE has made 0 purchases and 24 sales selling 408,980 shares for an estimated $80,192,769.
G MICHAEL SIEVERT has made 0 purchases and 5 sales selling 140,000 shares for an estimated $30,200,638.
PETER OSVALDIK (Chief Financial Officer) sold 27,000 shares for an estimated $5,801,220
MARK WOLFE NELSON (Chief Legal Officer & GC) has made 0 purchases and 3 sales selling 18,843 shares for an estimated $4,157,295.
SRINI GOPALAN (President and CEO) purchased 9,800 shares for an estimated $1,977,836
SRIKANT M. DATAR has made 0 purchases and 2 sales selling 4,291 shares for an estimated $945,890.
MICHAEL J. KATZ (Pres, Mkting Stgy & Prods) sold 2,500 shares for an estimated $539,775
LETITIA A LONG sold 1,457 shares for an estimated $306,436

To track insider transactions, check out Quiver Quantitative's insider trading dashboard.

$TMUS Hedge Fund Activity

We have seen 763 institutional investors add shares of $TMUS stock to their portfolio, and 875 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

SOFTBANK GROUP CORP. removed 16,671,036 shares (-36.9%) from their portfolio in Q4 2025, for an estimated $3,384,887,149
UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC removed 12,543,974 shares (-71.7%) from their portfolio in Q4 2025, for an estimated $2,546,928,480
PRICE T ROWE ASSOCIATES INC /MD/ added 6,516,968 shares (+30.6%) to their portfolio in Q4 2025, for an estimated $1,323,205,182
WELLINGTON MANAGEMENT GROUP LLP added 3,121,759 shares (+23.2%) to their portfolio in Q4 2025, for an estimated $633,841,947
DODGE & COX added 2,442,450 shares (+65.2%) to their portfolio in Q4 2025, for an estimated $495,915,048
AMUNDI removed 1,491,932 shares (-36.3%) from their portfolio in Q4 2025, for an estimated $302,921,873
JPMORGAN CHASE & CO removed 1,411,393 shares (-31.0%) from their portfolio in Q4 2025, for an estimated $286,569,234

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard.

$TMUS Government Contracts

We have seen $37,096,770 of award payments to $TMUS over the last year.

Here are some of the awards which we have have seen pay out the most over the last year:

WIRELESS TELECOMMUNICATIONS SERVICES TO INCLUDE DATA (EMAIL), TELEPHONE/VOICE (INCLUDING VOICEMAIL) AND/OR ...: $14,485,496
IRS BASELINE REQUIREMENT FOR SMARTPHONES, HOTSPOTS, AND TABLETS.: $4,975,700
EPA WIRELESS MOBILITY SERVICES: $2,221,973
TASK ORDER FOR WIRELESS SERVICES: $1,350,000
WIRELESS SERVICES THIS TASK ORDER 12 GROUP = 12 MONTHS OF SERVICE AS DETAILED IN THE QUOTE. PARTIAL PAYMENT...: $733,200

To track government contracts to publicy traded companies, check out Quiver Quantitative's government contracts dashboard.

$TMUS Congressional Stock Trading

Members of Congress have traded $TMUS stock 7 times in the past 6 months. Of those trades, 2 have been purchases and 5 have been sales.

Here’s a breakdown of recent trading of $TMUS stock by members of Congress over the last 6 months:

REPRESENTATIVE JONATHAN L. JACKSON has traded it 2 times. They made 0 purchases and 2 sales worth up to $115,000 on 01/13, 11/11.
REPRESENTATIVE DAN NEWHOUSE purchased up to $15,000 on 12/11.
SENATOR MARKWAYNE MULLIN sold up to $100,000 on 11/03.
REPRESENTATIVE LISA C. MCCLAIN has traded it 3 times. They made 1 purchase worth up to $15,000 on 10/30 and 2 sales worth up to $30,000 on 10/31, 10/30.

To track congressional stock trading, check out Quiver Quantitative's congressional trading dashboard.

$TMUS Analyst Ratings

Wall Street analysts have issued reports on $TMUS in the last several months. We have seen 3 firms issue buy ratings on the stock, and 0 firms issue sell ratings.

Here are some recent analyst ratings:

Morgan Stanley issued a "Overweight" rating on 12/10/2025
Argus Research issued a "Buy" rating on 12/09/2025
Tigress Financial issued a "Buy" rating on 11/11/2025

To track analyst ratings and price targets for $TMUS, check out Quiver Quantitative's $TMUS forecast page.

$TMUS Price Targets

Multiple analysts have issued price targets for $TMUS recently. We have seen 12 analysts offer price targets for $TMUS in the last 6 months, with a median target of $248.0.

Here are some recent targets:

Lyaysyan Sedova from Freedom Broker set a target price of $270.0 on 04/17/2026
Brandon Nispel from Keybanc set a target price of $260.0 on 04/13/2026
Michael Rollins from Citigroup set a target price of $225.0 on 03/17/2026
Jonathan Kees from Daiwa Capital set a target price of $240.0 on 02/19/2026
Eric Luebchow from Wells Fargo set a target price of $235.0 on 02/13/2026
Maher Yaghi from Scotiabank set a target price of $266.0 on 02/12/2026
Kannan Venkateshwar from Barclays set a target price of $245.0 on 02/12/2026

This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.