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 $6.73T AUM 46.02% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
SoftBank Group
SoftBank Group Tokyo, Japan $18.2B AUM 177.65% 1-Year Est. Return

Marshall Wace's TMUS Position: Q2 2026 in Review

Marshall Wace reduced its T-Mobile US (TMUS) stake by 11% in Q2 2026, selling an estimated $47.2M and leaving 2,120,218 shares worth $356M. The position accounts for 0.28% of the portfolio, ranked #47.

Marshall Wace first reported a position in TMUS in Q2 2013 and has held it in 46 quarters since. The position peaked at $498M in Q1 2026. 1,657 funds tracked by Wall St. Rank hold TMUS as of Q2 2026.

  • Marshall Wace held 2,120,218 shares of T-Mobile US worth $356M as of Q2 2026.
  • Marshall Wace sold 249,290 T-Mobile US shares in Q2 2026, an estimated $47.2M.
  • T-Mobile US made up 0.28% of Marshall Wace's portfolio in Q2 2026, its #47 holding.
  • Marshall Wace first reported a position in T-Mobile US in Q2 2013 and has held it in 46 quarters since.
  • Marshall Wace's T-Mobile US position peaked at $498M in Q1 2026.
  • 1,657 funds tracked by Wall St. Rank held T-Mobile US as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.