Ole Andreas Halvorsen
Viking Global Investors
Ole Andreas Halvorsen T-Mobile US Inc stake
total: 670
Viking Global Investors TMUS trades
- Total transactions:
- 34
- New positions:
- 5
- Sold out:
- 5
- Added:
- 14
- Reduced:
- 10
- Held since:
- 2023 Q4
- Held for:
- 10 quarters
- Latest activity:
- 2026 Q2
According to 2026 Q2 report, Ole Andreas Halvorsen doesn't hold any T-Mobile US Inc (TMUS) shares. To date, the estimated cost basis is nearly $195.36 for "buy" trades and estimated average "sell" price is $201.65. Viking Global Investors first purchased TMUS in 2015 Q1, initially acquiring about 7.99M shares. Ole Andreas Halvorsen later completely sold out the position and invested in T-Mobile US Inc again in 2023 Q4. Since the initial investment in T-Mobile US Inc (TMUS), Viking Global Investors has made 33 more transactions.
When did Ole Andreas Halvorsen sell T-Mobile US Inc (TMUS)?
Ole Andreas Halvorsen sold off the entire T-Mobile US Inc (TMUS) position in 2026 Q2.
When did Ole Andreas Halvorsen buy T-Mobile US Inc (TMUS)?
Ole Andreas Halvorsen first invested in T-Mobile US Inc (TMUS) in 2015 Q1 at the reported quarter-end price of $31.69 per share.
What's the cost basis of Viking Global Investors's TMUS stake?
The estimated cost basis for T-Mobile US Inc (TMUS) stake is around $195.36 per share. This represents their average reported price* across all buy transactions
Estimated cost basis*
- Weighted AVG buy price:
- $195.36
- Weighted AVG sell price:
- $201.65
Ole Andreas Halvorsen's historical trades in T-Mobile US Inc
34 results
| Period |
% of portfolio |
Shares held after* |
Reported price* |
Value* |
% (shares) of activity |
% change to portfolio |
|---|---|---|---|---|---|---|
|
2026 Q2
|
0.00%
|
0
|
$210.03
|
|
-100% (-2,967,374)
|
-1.74%
|
|
2026 Q1
|
1.74%
|
2,967,374
|
$210.03
|
$623,237,561
|
-20.96% (-786,844)
|
-0.44%
|
|
2025 Q4
|
2.02%
|
3,754,218
|
$203.04
|
$762,256,423
|
+15.07% (+491,752)
|
+0.27%
|
|
2025 Q3
|
2.03%
|
3,262,466
|
$239.38
|
$780,969,111
|
+14.66% (+417,150)
|
+0.26%
|
|
2025 Q2
|
1.96%
|
2,845,316
|
$238.26
|
$677,924,990
|
+81.71% (+1,279,422)
|
+0.88%
|
|
2025 Q1
|
1.33%
|
1,565,894
|
$266.71
|
$417,639,589
|
+156.53% (+955,490)
|
+0.81%
|
|
2024 Q4
|
0.44%
|
610,404
|
$220.73
|
$134,734,475
|
-46.96% (-540,334)
|
-0.43%
|
|
2024 Q3
|
0.87%
|
1,150,738
|
$206.36
|
$237,466,294
|
-53.84% (-1,342,064)
|
-1.06%
|
|
2024 Q2
|
1.69%
|
2,492,802
|
$176.18
|
$439,181,856
|
-43.10% (-1,888,495)
|
-1.24%
|
|
2024 Q1
|
2.66%
|
4,381,297
|
$163.22
|
$715,115,296
|
+190.15% (+2,871,298)
|
+1.74%
|
|
2023 Q4
|
0.89%
|
$160.33
|
new
|
|||
|
2022 Q4
|
0.00%
|
$134.17
|
-100% (-3,324,606)
|
|||
|
2022 Q3
|
2.06%
|
$134.17
|
-63.75% (-5,845,787)
|
|||
|
2022 Q2
|
5.64%
|
$134.54
|
-31.66% (-4,247,782)
|
|||
|
2022 Q1
|
6.96%
|
$128.35
|
+2.05% (+269,888)
|
|||
|
2021 Q4
|
4.39%
|
$115.98
|
+28.59% (+2,923,102)
|
|||
|
2021 Q3
|
3.58%
|
$127.76
|
+35.57% (+2,682,996)
|
|||
|
2021 Q2
|
3.31%
|
$144.83
|
-26.67% (-2,743,055)
|
|||
|
2021 Q1
|
3.84%
|
$125.29
|
+18.15% (+1,579,763)
|
|||
|
2020 Q4
|
3.23%
|
$134.85
|
+7.87% (+635,362)
|
|||
|
2020 Q3
|
3.33%
|
$114.36
|
+112.40% (+4,270,569)
|
|||
|
2020 Q2
|
1.71%
|
$104.15
|
+203.02% (+2,545,670)
|
|||
|
2020 Q1
|
0.55%
|
$83.90
|
new
|
|||
|
2019 Q1
|
0.00%
|
$63.61
|
-100% (-3,452,893)
|
|||
|
2018 Q4
|
1.25%
|
$63.61
|
+18.19% (+531,503)
|
|||
|
2018 Q3
|
1.14%
|
$70.18
|
-9.22% (-296,635)
|
|||
|
2018 Q2
|
1.10%
|
$59.75
|
new
|
|||
|
2017 Q1
|
0.00%
|
$57.51
|
-100% (-8,408,861)
|
|||
|
2016 Q4
|
2.20%
|
$57.51
|
-38.87% (-5,347,288)
|
|||
|
2016 Q3
|
2.77%
|
$46.72
|
-1.51% (-210,391)
|
|||
|
2016 Q2
|
2.57%
|
$43.27
|
+420.94% (+11,285,490)
|
|||
|
2016 Q1
|
0.45%
|
$38.30
|
new
|
|||
|
2015 Q2
|
0.00%
|
$31.69
|
-100% (-7,994,880)
|
|||
|
2015 Q1
|
0.98%
|
$31.69
|
new
|
|||
* Shares, change to shares, sold shares, shares held after: split-adjusted.
* Reported price: this doesn't represent the actual buy or sell price. It is the split-adjusted price of the security as of the last day of the reported period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
* Estimated cost basis: based on "Reported price*" (not earlier than 2013 Q2). Calculation starts from the latest "new buy" activity to the latest "close out" activity (if any).
* Value or Price: If the security is completely sold out, we show the reported value (or price) prior to the actual period.
* New buy or own: this means there is no earlier reporting (for us or in general). So we can't know if the actual purchase of the security happened at the reported period or earlier.