Mario Gabelli's TMUS Position Overview
Mario Gabelli (via Gamco Investors, Inc. Et Al) currently holds 68,025 shares of T-Mobile US, Inc. (TMUS) worth $13.81 M, representing 0.13% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 51 quarters.
Based on 13F filings since 2013, Mario Gabelli has maintained a long-term strategic position in TMUS, representing a significant commitment to this investment thesis. Largest addition occurred in Q2 2015, adding 206,725 shares. Largest reduction occurred in Q1 2020, reducing 92,741 shares.
Analysis based on 13F filings available since 2013 Q2
Mario Gabelli's T-Mobile US (TMUS) Holding Value Over Time
Track share changes against reported price movement
Quarterly T-Mobile US (TMUS) Trades by Mario Gabelli
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | -532 | Reduce 0.78% | 68,025 | $203.04 |
| Q3 2025 | -4,142 | Reduce 5.70% | 68,557 | $239.38 |
| Q2 2025 | +870 | Add 1.21% | 72,699 | $238.26 |
| Q1 2025 | -20,722 | Reduce 22.39% | 71,829 | $266.71 |
| Q4 2024 | -3,063 | Reduce 3.20% | 92,551 | $220.73 |
| Q3 2024 | -2,458 | Reduce 2.51% | 95,614 | $206.36 |
| Q2 2024 | -2,461 | Reduce 2.45% | 98,072 | $176.18 |
| Q1 2024 | -30,373 | Reduce 23.20% | 100,533 | $163.22 |
| Q4 2023 | -6,077 | Reduce 4.44% | 130,906 | $160.33 |
| Q3 2023 | -20,075 | Reduce 12.78% | 136,983 | $140.05 |
| Q2 2023 | -4,051 | Reduce 2.51% | 157,058 | $138.90 |
| Q1 2023 | -65,281 | Reduce 28.84% | 161,109 | $144.84 |
| Q4 2022 | +1,210 | Add 0.54% | 226,390 | $140.00 |
| Q3 2022 | -3,872 | Reduce 1.69% | 225,180 | $134.17 |
| Q2 2022 | -4,417 | Reduce 1.89% | 229,052 | $134.54 |
| Q1 2022 | -2,265 | Reduce 0.96% | 233,469 | $128.35 |
| Q4 2021 | -13,333 | Reduce 5.35% | 235,734 | $115.98 |
| Q3 2021 | -7,939 | Reduce 3.09% | 249,067 | $127.76 |
| Q2 2021 | +2,809 | Add 1.11% | 257,006 | $144.83 |
| Q1 2021 | +12,263 | Add 5.07% | 254,197 | $125.29 |
| Q4 2020 | +590 | Add 0.24% | 241,934 | $134.85 |
| Q3 2020 | +7,290 | Add 3.11% | 241,344 | $114.36 |
| Q2 2020 | -2,558 | Reduce 1.08% | 234,054 | $104.15 |
| Q1 2020 | -92,741 | Reduce 28.16% | 236,612 | $83.90 |
| Q4 2019 | -13,885 | Reduce 4.05% | 329,353 | $78.42 |
| Q3 2019 | -25,150 | Reduce 6.83% | 343,238 | $78.77 |
| Q2 2019 | -31,320 | Reduce 7.84% | 368,388 | $74.14 |
| Q1 2019 | -31,279 | Reduce 7.26% | 399,708 | $69.10 |
| Q4 2018 | -8,904 | Reduce 2.02% | 430,987 | $63.61 |
| Q3 2018 | -4,047 | Reduce 0.91% | 439,891 | $70.18 |
| Q2 2018 | -9,060 | Reduce 2.00% | 443,938 | $59.75 |
| Q1 2018 | -30,269 | Reduce 6.26% | 452,998 | $61.04 |
| Q4 2017 | -10,778 | Reduce 2.18% | 483,267 | $63.51 |
| Q3 2017 | -3,385 | Reduce 0.68% | 494,045 | $61.66 |
| Q2 2017 | +42,200 | Add 9.27% | 497,430 | $60.62 |
| Q1 2017 | -7,300 | Reduce 1.58% | 455,230 | $64.59 |
| Q4 2016 | -1,740 | Reduce 0.37% | 462,530 | $57.51 |
| Q3 2016 | -40,510 | Reduce 8.03% | 464,270 | $46.72 |
| Q2 2016 | -20,550 | Reduce 3.91% | 504,780 | $43.27 |
| Q1 2016 | +91,930 | Add 21.21% | 525,330 | $38.30 |
| Q4 2015 | +84,350 | Add 24.17% | 433,400 | $39.12 |
| Q3 2015 | +10,250 | Add 3.03% | 349,050 | $39.81 |
| Q2 2015 | +206,725 | Add 156.52% | 338,800 | $38.77 |
| Q1 2015 | +22,325 | Add 20.34% | 132,075 | $31.69 |
| Q4 2014 | -7,320 | Reduce 6.25% | 109,750 | $26.94 |
| Q3 2014 | +12,970 | Add 12.46% | 117,070 | $28.87 |
| Q2 2014 | -2,400 | Reduce 2.25% | 104,100 | $33.62 |
| Q1 2014 | +8,000 | Add 8.12% | 106,500 | $33.03 |
| Q4 2013 | -10,300 | Reduce 9.47% | 98,500 | $33.64 |
| Q3 2013 | +7,900 | Add 7.83% | 108,800 | $25.97 |
| Q2 2013 | +100,900 | Add 0.00% | 100,900 | $24.81 |
Mario Gabelli's T-Mobile US Investment FAQs
Mario Gabelli first purchased T-Mobile US, Inc. (TMUS) in Q2 2013, acquiring 100,900 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mario Gabelli has held T-Mobile US, Inc. (TMUS) for 51 quarters since Q2 2013.
Mario Gabelli's largest addition to T-Mobile US, Inc. (TMUS) was in Q2 2015, adding 338,800 shares worth $13.14 M.
According to the latest 13F filing for Q4 2025, Mario Gabelli's firm, Gamco Investors, Inc. Et Al, owns 68,025 shares of T-Mobile US, Inc. (TMUS), valued at approximately $13.81 M.
As of the Q4 2025 filing, T-Mobile US, Inc. (TMUS) represents approximately 0.13% of Mario Gabelli's publicly disclosed stock portfolio, making it one of their key holdings.
Mario Gabelli's peak holding in T-Mobile US, Inc. (TMUS) was 525,330 shares, as reported at the end of Q1 2016.