TRCT
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Tower Research Capital (TRC)’s Mirion Technologies MIR Stock Holding History

Tower Research Capital (TRC)’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 		$300K Buy
16,160
+8,590
+113% +$194K 0.01% 1298
2025
Q4 		$177K Buy
7,570
+1,828
+32% +$45.6K ﹤0.01% 1528
2025
Q3 		$134K Sell
5,742
-34,136
-86% -$738K ﹤0.01% 1785
2025
Q2 		$859K Buy
39,878
+34,292
+614% +$591K 0.02% 617
2025
Q1 		$81K Sell
5,586
-1,063
-16% -$16.7K ﹤0.01% 1888
2024
Q4 		$116K Buy
6,649
+4,120
+163% +$63.9K ﹤0.01% 2072
2024
Q3 		$28K Sell
2,529
-31,104
-92% -$327K ﹤0.01% 3045
2024
Q2 		$361K Buy
33,633
+31,678
+1,620% +$337K 0.01% 1602
2024
Q1 		$22.2K Sell
1,955
-50,838
-96% -$509K ﹤0.01% 2906
2023
Q4 		$541K Buy
52,793
+43,369
+460% +$366K 0.01% 1307
2023
Q3 		$70.4K Sell
9,424
-6,247
-40% -$49.2K ﹤0.01% 2256
2023
Q2 		$132K Buy
15,671
+12,724
+432% +$103K ﹤0.01% 1853
2023
Q1 		$25K Sell
2,947
-2,943
-50% -$23.3K ﹤0.01% 3209
2022
Q4 		$39K Buy
5,890
+2,087
+55% +$14.1K ﹤0.01% 2532
2022
Q3 		$28K Sell
3,803
-3,654
-49% -$25.7K ﹤0.01% 3660
2022
Q2 		$43K Buy
7,457
+3,464
+87% +$25.5K ﹤0.01% 3037
2022
Q1 		$32K Sell
3,993
-13,127
-77% -$113K ﹤0.01% 3087
2021
Q4 		$179K Buy
+17,120
New +$184K ﹤0.01% 1855
2021
Q3 		– Sell
-702
Closed -$7K – 6006
2021
Q2 		$7K Sell
702
-11,051
-94% -$114K ﹤0.01% 4559
2021
Q1 		$123K Buy
11,753
+11,653
+11,653% +$137K ﹤0.01% 2428
2020
Q4 		$1K Buy
+100
New +$1.03K ﹤0.01% 5011

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

Tower Research Capital (TRC)'s MIR Position: Q1 2026 in Review

Tower Research Capital (TRC) increased its Mirion Technologies (MIR) stake by 113% in Q1 2026, buying an estimated $194K and bringing the position to 16,160 shares worth $300K. The position accounts for 0.01% of the portfolio, ranked #1298.

Tower Research Capital (TRC) first reported a position in MIR in Q4 2020 and has held it in 21 quarters since. The position peaked at $859K in Q2 2025. 360 funds tracked by Wall St. Rank hold MIR as of Q1 2026.

  • Tower Research Capital (TRC) held 16,160 shares of Mirion Technologies worth $300K as of Q1 2026.
  • Tower Research Capital (TRC) bought 8,590 Mirion Technologies shares in Q1 2026, an estimated $194K.
  • Mirion Technologies made up 0.01% of Tower Research Capital (TRC)'s portfolio in Q1 2026, its #1298 holding.
  • Tower Research Capital (TRC) first reported a position in Mirion Technologies in Q4 2020 and has held it in 21 quarters since.
  • Tower Research Capital (TRC)'s Mirion Technologies position peaked at $859K in Q2 2025.
  • 360 funds tracked by Wall St. Rank held Mirion Technologies as of Q1 2026.

Based on Tower Research Capital (TRC)'s 13F filing for Q1 2026, filed 15 May 2026.