TIM
MIR icon

Thornburg Investment Management’s Mirion Technologies MIR Stock Holding History

Thornburg 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
2026
Q1 		$959K Sell
51,597
-174,612
-77% -$3.94M 0.01% 141
2025
Q4 		$5.3M Buy
+226,209
New +$5.64M 0.07% 122

Other funds holding MIR

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
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
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 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
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Thornburg Investment Management's MIR Position: Q1 2026 in Review

Thornburg Investment Management reduced its Mirion Technologies (MIR) stake by 77% in Q1 2026, selling an estimated $3.94M and leaving 51,597 shares worth $959K. The position accounts for 0.01% of the portfolio, ranked #141.

Thornburg Investment Management first reported a position in MIR in Q4 2025 and has held it in 2 quarters since. The position peaked at $5.3M in Q4 2025. 361 funds tracked by Wall St. Rank hold MIR as of Q1 2026.

  • Thornburg Investment Management held 51,597 shares of Mirion Technologies worth $959K as of Q1 2026.
  • Thornburg Investment Management sold 174,612 Mirion Technologies shares in Q1 2026, an estimated $3.94M.
  • Mirion Technologies made up 0.01% of Thornburg Investment Management's portfolio in Q1 2026, its #141 holding.
  • Thornburg Investment Management first reported a position in Mirion Technologies in Q4 2025 and has held it in 2 quarters since.
  • Thornburg Investment Management's Mirion Technologies position peaked at $5.3M in Q4 2025.
  • 361 funds tracked by Wall St. Rank held Mirion Technologies as of Q1 2026.

Based on Thornburg Investment Management's 13F filing for Q1 2026, filed 12 May 2026.