Balyasny Asset Management
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Balyasny Asset Management’s Mirion Technologies MIR Stock Holding History

Balyasny Asset 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
Q3 		– Sell
-167,245
Closed -$3.6M – 3257
2025
Q2 		$3.6M Buy
167,245
+3,213
+2% +$55.4K 0.01% 1446
2025
Q1 		$2.38M Buy
164,032
+127,530
+349% +$2M ﹤0.01% 1628
2024
Q4 		$637K Buy
+36,502
New +$566K ﹤0.01% 2108
2023
Q1 		– Sell
-217
Closed -$1.43K – 2961
2022
Q4 		$1.43K Sell
217
-195,262
-100% -$1.31M ﹤0.01% 2690
2022
Q3 		$1.46M Hold
195,479
– – ﹤0.01% 1654
2022
Q2 		$1.13M Sell
195,479
-86,118
-31% -$634K ﹤0.01% 1697
2022
Q1 		$2.27M Buy
281,597
+68,608
+32% +$591K 0.01% 1302
2021
Q4 		$2.23M Sell
212,989
-300,865
-59% -$3.23M 0.01% 1168
2021
Q3 		$5.25M Buy
513,854
+2
+0% +$20 0.02% 798
2021
Q2 		$5.34M Buy
513,852
+485,404
+1,706% +$4.99M 0.03% 697
2021
Q1 		$297K Buy
+28,448
New +$334K ﹤0.01% 1504

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

Balyasny Asset Management's MIR Position: Q3 2025 in Review

Balyasny Asset Management sold out of Mirion Technologies (MIR) in Q3 2025, closing a stake of 167,245 shares — an estimated $3.6M sold.

Balyasny Asset Management first reported a position in MIR in Q1 2021 and held it in 11 quarters. The position peaked at $5.34M in Q2 2021. 341 funds tracked by Wall St. Rank hold MIR as of Q3 2025.

  • Balyasny Asset Management reported no remaining Mirion Technologies position as of Q3 2025 after selling out during the quarter.
  • Balyasny Asset Management sold 167,245 Mirion Technologies shares in Q3 2025, an estimated $3.6M.
  • Balyasny Asset Management first reported a position in Mirion Technologies in Q1 2021 and held it in 11 quarters.
  • Balyasny Asset Management's Mirion Technologies position peaked at $5.34M in Q2 2021.
  • 341 funds tracked by Wall St. Rank held Mirion Technologies as of Q3 2025.

Based on Balyasny Asset Management's 13F filing for Q3 2025, filed 14 Nov 2025.