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Magnetar Financial’s T-Mobile US TMUS Stock Holding History

Magnetar Financial’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
2014
Q1 		– Sell
-910,000
Closed -$30.6M – 289
2013
Q4 		$30.6M Buy
+910,000
New +$24.9M 0.63% 48

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

Magnetar Financial's TMUS Position: Q1 2026 in Review

Magnetar Financial opened a new position in T-Mobile US (TMUS) in Q1 2026: 3,186 shares worth $682K. The stake represents 0.01% of the portfolio and ranks #562 among its holdings. This is a return to the name: Magnetar Financial previously reported a position in TMUS as recently as Q3 2025.

Magnetar Financial first reported a position in TMUS in Q4 2013 and has held it in 16 quarters since. The position peaked at $13.1M in Q2 2014. 1,719 funds tracked by Wall St. Rank hold TMUS as of Q1 2026.

  • Magnetar Financial held 3,186 shares of T-Mobile US worth $682K as of Q1 2026.
  • T-Mobile US was a new Magnetar Financial position in Q1 2026.
  • T-Mobile US made up 0.01% of Magnetar Financial's portfolio in Q1 2026, its #562 holding.
  • Magnetar Financial first reported a position in T-Mobile US in Q4 2013 and has held it in 16 quarters since.
  • Magnetar Financial's T-Mobile US position peaked at $13.1M in Q2 2014.
  • 1,719 funds tracked by Wall St. Rank held T-Mobile US as of Q1 2026.

Based on Magnetar Financial's 13F filing for Q1 2026, filed 13 May 2026.