GAM Holding
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GAM Holding’s T-Mobile US TMUS Stock Holding History

GAM Holding’s Portfolio TMUS Stock Details TMUS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$3.83M Buy
+23,489
New +$4.2M 0.32% 76
2025
Q3 		– Sell
-3,375
Closed -$804K – 312
2025
Q2 		$804K Buy
+3,375
New +$824K 0.06% 200
2020
Q1 		– Sell
-7,360
Closed -$577K – 523
2019
Q4 		$577K Buy
7,360
+2,998
+69% +$236K 0.03% 327
2019
Q3 		$344K Sell
4,362
-5,035
-54% -$395K 0.02% 686
2019
Q2 		$697K Sell
9,397
-1,075
-10% -$79.8K 0.03% 594
2019
Q1 		$724K Buy
10,472
+623
+6% +$43.6K 0.03% 546
2018
Q4 		$626K Sell
9,849
-6,779
-41% -$455K 0.03% 480
2018
Q3 		$1.17M Buy
+16,628
New +$1.07M 0.04% 423
2017
Q3 		– Sell
-14,870
Closed -$901K – 898
2017
Q2 		$901K Buy
14,870
+5,422
+57% +$353K 0.01% 660
2017
Q1 		$610K Sell
9,448
-610
-6% -$37.5K 0.01% 759
2016
Q4 		$578K Sell
10,058
-450
-4% -$23.5K 0.01% 719
2016
Q3 		$491K Buy
10,508
+420
+4% +$19.3K 0.01% 720
2016
Q2 		$437K Buy
10,088
+2,112
+26% +$86.6K 0.01% 758
2016
Q1 		$305K Hold
7,976
– – 0.01% 775
2015
Q4 		$312K Buy
7,976
+1,834
+30% +$70.9K ﹤0.01% 924
2015
Q3 		$245K Hold
6,142
– – ﹤0.01% 949
2015
Q2 		$238K Buy
6,142
+1,842
+43% +$66K ﹤0.01% 972
2015
Q1 		$136K Buy
4,300
+1,000
+30% +$31.2K ﹤0.01% 992
2014
Q4 		$89K Hold
3,300
– – ﹤0.01% 1048
2014
Q3 		$95K Sell
3,300
-900
-21% -$27.7K ﹤0.01% 1021
2014
Q2 		$141K Buy
4,200
+900
+27% +$29.1K ﹤0.01% 969
2014
Q1 		$109K Hold
3,300
– – ﹤0.01% 989
2013
Q4 		$111K Sell
3,300
-44,115
-93% -$1.21M ﹤0.01% 834
2013
Q3 		$1.23M Buy
47,415
+12,490
+36% +$305K 0.02% 611
2013
Q2 		$867K Buy
+34,925
New +$747K 0.02% 551

Other funds holding TMUS

Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $195B AUM 21.17% 1-Year Est. Return
DekaBank Deutsche Girozentrale
DekaBank Deutsche Girozentrale Frankfurt, Germany $87.8B AUM 20.94% 1-Year Est. Return
Citigroup
Citigroup New York $308B AUM 40.94% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $174B AUM 33.96% 1-Year Est. Return
ProShare Advisors
ProShare Advisors Bethesda, Maryland $69.5B AUM 31.38% 1-Year Est. Return
NEOS Investment Management
NEOS Investment Management Westport, Connecticut $31.3B AUM 47.44% 1-Year Est. Return
Mirae Asset Global Investments
Mirae Asset Global Investments Seoul, South Korea $57.1B AUM 43.46% 1-Year Est. Return
Bank Julius Baer & Co
Bank Julius Baer & Co Zurich, Switzerland $39.3B AUM 31.81% 1-Year Est. Return
Evergreen Capital Management
Evergreen Capital Management Bellevue, Washington $5.65B AUM 21.62% 1-Year Est. Return

GAM Holding's TMUS Position: Q3 2026 in Review

GAM Holding opened a new position in T-Mobile US (TMUS) in Q3 2026: 23,489 shares worth $3.83M. The stake represents 0.32% of the portfolio and ranks #76 among its holdings. This is a return to the name: GAM Holding previously reported a position in TMUS as recently as Q2 2025.

GAM Holding first reported a position in TMUS in Q2 2013 and has held it in 25 quarters since. 762 funds tracked by Wall St. Rank hold TMUS as of Q3 2026.

  • GAM Holding held 23,489 shares of T-Mobile US worth $3.83M as of Q3 2026.
  • T-Mobile US was a new GAM Holding position in Q3 2026.
  • T-Mobile US made up 0.32% of GAM Holding's portfolio in Q3 2026, its #76 holding.
  • GAM Holding first reported a position in T-Mobile US in Q2 2013 and has held it in 25 quarters since.
  • 762 funds tracked by Wall St. Rank held T-Mobile US as of Q3 2026.

Based on GAM Holding's 13F filing for Q3 2026, filed 3 Nov 2026.