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Tortoise Investment Management’s Mirion Technologies MIR Stock Holding History

Tortoise Investment Management’s Portfolio MIR Stock Details MIR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-3
Closed -$70 – 948
2025
Q3 		$70 Buy
+3
New +$65 ﹤0.01% 1450

Other funds holding MIR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
CLG
Cooperman Leon G $3.55B AUM 41.85% 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
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return

Tortoise Investment Management's MIR Position: Q4 2025 in Review

Tortoise Investment Management sold out of Mirion Technologies (MIR) in Q4 2025, closing a stake of 3 shares — an estimated $70 sold.

Tortoise Investment Management first reported a position in MIR in Q3 2025 and held it in 1 quarter. The position peaked at $70 in Q3 2025. 365 funds tracked by Wall St. Rank hold MIR as of Q4 2025.

  • Tortoise Investment Management reported no remaining Mirion Technologies position as of Q4 2025 after selling out during the quarter.
  • Tortoise Investment Management sold 3 Mirion Technologies shares in Q4 2025, an estimated $70.
  • Tortoise Investment Management first reported a position in Mirion Technologies in Q3 2025 and held it in 1 quarter.
  • Tortoise Investment Management's Mirion Technologies position peaked at $70 in Q3 2025.
  • 365 funds tracked by Wall St. Rank held Mirion Technologies as of Q4 2025.

Based on Tortoise Investment Management's 13F filing for Q4 2025, filed 6 Feb 2026.