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Bastion Asset Management’s Mirion Technologies MIR Stock Holding History

Bastion 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
2026
Q2 		$4.68M Sell
272,545
-116,613
-30% -$2.16M 1.59% 23
2026
Q1 		$7.29M Buy
+389,158
New +$8.78M 2.22% 13
2025
Q2 		– Sell
-326,580
Closed -$4.89M – 70
2025
Q1 		$4.89M Buy
+326,580
New +$5.13M 2.64% 9

Other funds holding MIR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Alyeska Investment Group
Alyeska Investment Group Chicago, Illinois $38.9B AUM 28.51% 1-Year Est. Return
CLG
Cooperman Leon G $3.55B AUM 41.85% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
CAM
Congress Asset Management Boston, Massachusetts $16.3B AUM 42.69% 1-Year Est. Return

Bastion Asset Management's MIR Position: Q2 2026 in Review

Bastion Asset Management reduced its Mirion Technologies (MIR) stake by 30% in Q2 2026, selling an estimated $2.16M and leaving 272,545 shares worth $4.68M. The position accounts for 1.59% of the portfolio, ranked #23.

Bastion Asset Management first reported a position in MIR in Q1 2025 and has held it in 3 quarters since. The position peaked at $7.29M in Q1 2026. 351 funds tracked by Wall St. Rank hold MIR as of Q2 2026.

  • Bastion Asset Management held 272,545 shares of Mirion Technologies worth $4.68M as of Q2 2026.
  • Bastion Asset Management sold 116,613 Mirion Technologies shares in Q2 2026, an estimated $2.16M.
  • Mirion Technologies made up 1.59% of Bastion Asset Management's portfolio in Q2 2026, its #23 holding.
  • Bastion Asset Management first reported a position in Mirion Technologies in Q1 2025 and has held it in 3 quarters since.
  • Bastion Asset Management's Mirion Technologies position peaked at $7.29M in Q1 2026.
  • 351 funds tracked by Wall St. Rank held Mirion Technologies as of Q2 2026.

Based on Bastion Asset Management's 13F filing for Q2 2026, filed 10 Aug 2026.