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Cookson Peirce & Co’s Mirion Technologies MIR Stock Holding History

Cookson Peirce & Co’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
Q3 		– Sell
-20,000
Closed -$431K – 336
2025
Q2 		$431K Buy
+20,000
New +$345K 0.02% 233

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
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
CLG
Cooperman Leon G $3.05B AUM 42.78% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return

Cookson Peirce & Co's MIR Position: Q3 2025 in Review

Cookson Peirce & Co sold out of Mirion Technologies (MIR) in Q3 2025, closing a stake of 20,000 shares — an estimated $431K sold.

Cookson Peirce & Co first reported a position in MIR in Q2 2025 and held it in 1 quarter. The position peaked at $431K in Q2 2025. 341 funds tracked by Wall St. Rank hold MIR as of Q3 2025.

  • Cookson Peirce & Co reported no remaining Mirion Technologies position as of Q3 2025 after selling out during the quarter.
  • Cookson Peirce & Co sold 20,000 Mirion Technologies shares in Q3 2025, an estimated $431K.
  • Cookson Peirce & Co first reported a position in Mirion Technologies in Q2 2025 and held it in 1 quarter.
  • Cookson Peirce & Co's Mirion Technologies position peaked at $431K in Q2 2025.
  • 341 funds tracked by Wall St. Rank held Mirion Technologies as of Q3 2025.

Based on Cookson Peirce & Co's 13F filing for Q3 2025, filed 6 Nov 2025.