米里昂科技公司
US ˙ NYSE

SecurityMIR / Mirion Technologies, Inc.
InstitutionRoyce Value Trust Inc
Latest Disclosed Ownership304,613 shares
Latest Disclosed Value $ 6,558,317
Royce Value Trust Inc reports 20.40% increase in ownership of MIR / Mirion Technologies, Inc.

On August 15, 2025 - Royce Value Trust Inc filed a NPORT-P form disclosing ownership of 304,613 shares of Mirion Technologies, Inc. (US:MIR) valued at $6,558,318 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 19, 2025 disclosing 253,000 shares of Mirion Technologies, Inc.. This represents a change in shares of 20.40% during the quarter. The current value of the position is $5,202,790 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2025-08-15 2025-06-30 NP Mirion Technologies EC US60471A1016 304,613 51,613 20.40 6,558 78.79 0.3274
2025-05-19 2025-03-31 NP Mirion Technologies EC US60471A1016 253,000 0 0.00 3,668 -16.90 0.1993
2025-02-21 2024-12-31 NP Mirion Technologies EC US60471A1016 253,000 -14,000 -5.24 4,415 49.37 0.2209
2024-11-19 2024-09-30 NP Mirion Technologies EC US60471A1016 267,000 1,000 0.38 2,956 3.47 0.1463
2024-08-12 2024-06-30 NP Mirion Technologies EC US60471A1016 266,000 19,000 7.69 2,857 1.71 0.1497
2024-05-28 2024-03-31 NP Mirion Technologies EC US60471A1016 247,000 22,000 9.78 2,808 21.77 0.1435
2024-02-20 2023-12-31 NP Mirion Technologies EC US60471A1016 225,000 0 0.00 2,306 37.26 0.1237
2023-11-22 2023-09-30 NP Mirion Technologies EC US60471A1016 225,000 0 0.00 1,681 -11.63 0.1010
2023-08-09 2023-06-30 NP Mirion Technologies EC US60471A1016 225,000 0 0.00 1,901 -1.04 0.1084
2023-05-19 2023-03-31 NP Mirion Technologies EC US60471A1016 225,000 100,000 80.00 1,922 132.57 0.1139
2023-02-21 2022-12-31 NP Mirion Technologies EC US60471A1016 125,000 0 0.00 826 -11.47 0.0515
2022-11-17 2022-09-30 NP Mirion Technologies EC US60471A1016 125,000 0 0.00 934 29.58 0.0633
2022-08-16 2022-06-30 NP Mirion Technologies EC US60471A1016 125,000 0 0.00 720 -28.57 0.0455
2022-05-16 2022-03-31 NP Mirion Technologies EC US60471A1016 125,000 125,000 1,009 0.0526
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.