Mirion Technologies, Inc.
US ˙ NYSE

SecurityMIR / Mirion Technologies, Inc.
InstitutionTruist Financial Corp
Latest Disclosed Ownership31,100 shares
Latest Disclosed Value $ 578,149
Truist Financial Corp reports 8.14% decrease in ownership of MIR / Mirion Technologies, Inc.

On April 27, 2026 - Truist Financial Corp filed a 13F-HR form disclosing ownership of 31,100 shares of Mirion Technologies, Inc. (US:MIR) valued at $578,149 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 33,856 shares of Mirion Technologies, Inc.. This represents a change in shares of -8.14% during the quarter. The current value of the position is $567,264 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)
2026-04-27 2026-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 31,100 -2,756 -8.14 578 -27.02 0.0008
2026-02-02 2025-12-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 33,856 1,653 5.13 793 5.74 0.0011
2025-11-03 2025-09-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 32,203 36 0.11 749 8.24 0.0010
2025-07-18 2025-06-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 32,167 16,484 105.11 693 204.85 0.0010
2025-04-29 2025-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 15,683 2,001 14.63 227 -4.62 0.0004
2025-01-31 2024-12-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 13,682 87 0.64 239 58.67 0.0004
2024-11-13 2024-09-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 13,595 -234 -1.69 150 1.35 0.0002
2024-08-21 2024-06-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 13,829 494 3.70 149 -1.99 0.0002
2024-05-13 2024-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 13,335 1,000 8.11 152 19.84 0.0002
2024-02-02 2023-12-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 12,335 0 0.00 126 36.96 0.0002
2023-11-14 2023-09-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 12,335 0 0.00 92 -11.54 0.0002
2023-08-01 2023-06-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 12,335 0 0.00 104 -0.95 0.0002
2023-05-05 2023-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 12,335 -516 -4.02 105 25.00 0.0002
2023-02-17 2022-12-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 12,851 -573 -4.27 85 -16.00 0.0001
2022-10-26 2022-09-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 13,424 407 3.13 100 33.33 0.0002
2022-07-22 2022-06-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 13,017 127 0.99 75 -27.88 0.0001
2022-04-22 2022-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 12,890 12,890 104 0.0002
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.