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Mainstay Capital Management’s T-Mobile US TMUS Stock Holding History

Mainstay Capital Management’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
Q1 		$218K Sell
1,038
-34
-3% -$6.98K 0.02% 138
2025
Q4 		$218K Buy
1,072
+74
+7% +$15.7K 0.02% 125
2025
Q3 		$239K Sell
998
-674
-40% -$163K 0.02% 109
2025
Q2 		$398K Buy
1,672
+906
+118% +$221K 0.02% 117
2025
Q1 		$204K Buy
+766
New +$189K 0.03% 105

Other funds holding TMUS

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
SoftBank Group
SoftBank Group Tokyo, Japan $11.4B AUM 27.91% 1-Year Est. Return

Mainstay Capital Management's TMUS Position: Q1 2026 in Review

Mainstay Capital Management reduced its T-Mobile US (TMUS) stake by 3.2% in Q1 2026, selling an estimated $6.98K and leaving 1,038 shares worth $218K. The position accounts for 0.02% of the portfolio, ranked #138.

Mainstay Capital Management first reported a position in TMUS in Q1 2025 and has held it in 5 quarters since. The position peaked at $398K in Q2 2025. 1,720 funds tracked by Wall St. Rank hold TMUS as of Q1 2026.

  • Mainstay Capital Management held 1,038 shares of T-Mobile US worth $218K as of Q1 2026.
  • Mainstay Capital Management sold 34 T-Mobile US shares in Q1 2026, an estimated $6.98K.
  • T-Mobile US made up 0.02% of Mainstay Capital Management's portfolio in Q1 2026, its #138 holding.
  • Mainstay Capital Management first reported a position in T-Mobile US in Q1 2025 and has held it in 5 quarters since.
  • Mainstay Capital Management's T-Mobile US position peaked at $398K in Q2 2025.
  • 1,720 funds tracked by Wall St. Rank held T-Mobile US as of Q1 2026.

Based on Mainstay Capital Management's 13F filing for Q1 2026, filed 12 May 2026.