Marshall Wace
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Marshall Wace’s T-Mobile US TMUS Stock Holding History

Marshall Wace’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
2025
Q2 		– Sell
-110,000
Closed -$29.3M – 3174
2025
Q1 		$29.3M Buy
+110,000
New +$27.1M 0.04% 414
2024
Q4 		– Sell
-60,600
Closed -$12.5M – 3008
2024
Q3 		$12.5M Buy
+60,600
New +$11.6M 0.02% 676
2024
Q2 		– Sell
-237,300
Closed -$38.5M – 2964
2024
Q1 		$38.5M Sell
237,300
-251,200
-51% -$40.9M 0.06% 310
2023
Q4 		$78.3M Buy
+488,500
New +$72.3M 0.13% 148
2023
Q3 		– Sell
-175,900
Closed -$24.4M – 2681
2023
Q2 		$24.4M Buy
+175,900
New +$24.7M 0.05% 410
2021
Q4 		– Sell
-27,300
Closed -$3.49M – 4278
2021
Q3 		$3.49M Buy
+27,300
New +$3.8M 0.01% 1175

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

Marshall Wace's TMUS Position: Q1 2026 in Review

Marshall Wace increased its T-Mobile US (TMUS) stake by 227% in Q1 2026, buying an estimated $338M and bringing the position to 2,369,508 shares worth $498M. The position accounts for 0.5% of the portfolio, ranked #21.

Marshall Wace first reported a position in TMUS in Q2 2013 and has held it in 45 quarters since. 1,719 funds tracked by Wall St. Rank hold TMUS as of Q1 2026.

  • Marshall Wace held 2,369,508 shares of T-Mobile US worth $498M as of Q1 2026.
  • Marshall Wace bought 1,644,089 T-Mobile US shares in Q1 2026, an estimated $338M.
  • T-Mobile US made up 0.5% of Marshall Wace's portfolio in Q1 2026, its #21 holding.
  • Marshall Wace first reported a position in T-Mobile US in Q2 2013 and has held it in 45 quarters since.
  • 1,719 funds tracked by Wall St. Rank held T-Mobile US as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.