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SummitTX Capital’s Mirion Technologies MIR Stock Holding History

SummitTX Capital’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
-25,482
Closed -$593K – 875
2025
Q3 		$593K Sell
25,482
-124,518
-83% -$2.69M 0.02% 493
2025
Q2 		$3.23M Buy
+150,000
New +$2.59M 0.14% 176

Other funds holding MIR

BlackRock
BlackRock New York $5.72T AUM 30.48% 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 $145B AUM 22.78% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
CLG
Cooperman Leon G $3.05B AUM 42.78% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

SummitTX Capital's MIR Position: Q4 2025 in Review

SummitTX Capital sold out of Mirion Technologies (MIR) in Q4 2025, closing a stake of 25,482 shares — an estimated $593K sold.

SummitTX Capital first reported a position in MIR in Q2 2025 and held it in 2 quarters. The position peaked at $3.23M in Q2 2025. 365 funds tracked by Wall St. Rank hold MIR as of Q4 2025.

  • SummitTX Capital reported no remaining Mirion Technologies position as of Q4 2025 after selling out during the quarter.
  • SummitTX Capital sold 25,482 Mirion Technologies shares in Q4 2025, an estimated $593K.
  • SummitTX Capital first reported a position in Mirion Technologies in Q2 2025 and held it in 2 quarters.
  • SummitTX Capital's Mirion Technologies position peaked at $3.23M in Q2 2025.
  • 365 funds tracked by Wall St. Rank held Mirion Technologies as of Q4 2025.

Based on SummitTX Capital's 13F filing for Q4 2025, filed 17 Feb 2026.