Barclays
MIR icon

Barclays’s Mirion Technologies MIR Stock Holding History

Barclays’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
Q3 		$826K Buy
+58,500
New +$925K ﹤0.01% 3180

Other funds holding MIR

Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Congress Asset Management
Congress Asset Management Boston, Massachusetts $15.4B AUM 30.39% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return
TCW Group
TCW Group Los Angeles, California $13B AUM 38.16% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $118B AUM 40.52% 1-Year Est. Return
Public Sector Pension Investment Board (PSP Investments)
Public Sector Pension Investment Board (PSP Investments) Montreal, Quebec, Canada $45.4B AUM 34.02% 1-Year Est. Return
Stephens Investment Management Group
Stephens Investment Management Group Houston, Texas $9.29B AUM 41.16% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $30.8B AUM 33.92% 1-Year Est. Return

Barclays's MIR Position: Q3 2026 in Review

Barclays increased its Mirion Technologies (MIR) stake by 164% in Q3 2026, buying an estimated $1.14M and bringing the position to 116,487 shares worth $1.64M. The position accounts for ﹤0.01% of the portfolio, ranked #2720.

Barclays first reported a position in MIR in Q2 2022 and has held it in 18 quarters since. The position peaked at $9.33M in Q3 2025. 184 funds tracked by Wall St. Rank hold MIR as of Q3 2026.

  • Barclays held 116,487 shares of Mirion Technologies worth $1.64M as of Q3 2026.
  • Barclays bought 72,359 Mirion Technologies shares in Q3 2026, an estimated $1.14M.
  • Mirion Technologies made up ﹤0.01% of Barclays's portfolio in Q3 2026, its #2720 holding.
  • Barclays first reported a position in Mirion Technologies in Q2 2022 and has held it in 18 quarters since.
  • Barclays's Mirion Technologies position peaked at $9.33M in Q3 2025.
  • 184 funds tracked by Wall St. Rank held Mirion Technologies as of Q3 2026.

Based on Barclays's 13F filing for Q3 2026, filed 6 Nov 2026.