Public Sector Pension Investment Board (PSP Investments)
MIR icon

Public Sector Pension Investment Board (PSP Investments)’s Mirion Technologies MIR Stock Holding History

Public Sector Pension Investment Board (PSP Investments)’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 		$16.3M Buy
875,290
+17,606
+2% +$397K 0.05% 326
2025
Q4 		$20.1M Sell
857,684
-98,476
-10% -$2.46M 0.07% 208
2025
Q3 		$22.2M Buy
+956,160
New +$20.7M 0.08% 175
2021
Q4 		– Sell
-1,500,000
Closed -$16.1M – 1443
2021
Q3 		$15.3M Hold
1,500,000
– – 0.09% 191
2021
Q2 		$15.6M Hold
1,500,000
– – 0.09% 172
2021
Q1 		$15.6M Hold
1,500,000
– – 0.1% 183
2020
Q4 		$16.4M Hold
1,500,000
– – 0.13% 159
2020
Q3 		$16.1M Buy
+1,500,000
New +$15.6M 0.13% 168

Other funds holding MIR

BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $3.37T AUM 44.26% 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 $1.88T AUM 44.46% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Public Sector Pension Investment Board (PSP Investments)'s MIR Position: Q1 2026 in Review

Public Sector Pension Investment Board (PSP Investments) increased its Mirion Technologies (MIR) stake by 2.1% in Q1 2026, buying an estimated $397K and bringing the position to 875,290 shares worth $16.3M. The position accounts for 0.05% of the portfolio, ranked #326.

Public Sector Pension Investment Board (PSP Investments) first reported a position in MIR in Q3 2020 and has held it in 8 quarters since. The position peaked at $22.2M in Q3 2025. 361 funds tracked by Wall St. Rank hold MIR as of Q1 2026.

  • Public Sector Pension Investment Board (PSP Investments) held 875,290 shares of Mirion Technologies worth $16.3M as of Q1 2026.
  • Public Sector Pension Investment Board (PSP Investments) bought 17,606 Mirion Technologies shares in Q1 2026, an estimated $397K.
  • Mirion Technologies made up 0.05% of Public Sector Pension Investment Board (PSP Investments)'s portfolio in Q1 2026, its #326 holding.
  • Public Sector Pension Investment Board (PSP Investments) first reported a position in Mirion Technologies in Q3 2020 and has held it in 8 quarters since.
  • Public Sector Pension Investment Board (PSP Investments)'s Mirion Technologies position peaked at $22.2M in Q3 2025.
  • 361 funds tracked by Wall St. Rank held Mirion Technologies as of Q1 2026.

Based on Public Sector Pension Investment Board (PSP Investments)'s 13F filing for Q1 2026, filed 13 May 2026.