Mirion Technologies, Inc.
MX ˙ BMV
SecurityMX:MIR / Mirion Technologies, Inc.
InstitutionCibc World Markets Corp
Latest Disclosed Ownership15,870 shares
Latest Disclosed Value $ 371,675
Cibc World Markets Corp reports 38.71% decrease in ownership of MIR / Mirion Technologies, Inc.

On February 12, 2026 - Cibc World Markets Corp filed a 13F-HR form disclosing ownership of 15,870 shares of Mirion Technologies, Inc. (MX:MIR) valued at $371,675 USD as of December 31, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 25,892 shares of Mirion Technologies, Inc.. This represents a change in shares of -38.71% during the quarter.

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)
2026-02-12 2025-12-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 15,870 -10,022 -38.71 372 -33.39 0.0018
2025-08-14 2025-06-30 13F MIRION TECHNOLOGIES INC COM CL A COM 60471A101 25,892 -19,946 -43.51 557 -16.11 0.0035
2025-05-13 2025-03-31 13F MIRION TECHNOLOGIES INC COM CL A COM 60471A101 45,838 26,506 137.11 665 97.03 0.0052
2025-02-10 2024-12-31 13F MIRION TECHNOLOGIES INC COM CL A COM 60471A101 19,332 19,332 337 0.0020
2024-08-12 2024-06-30 13F MIRION TECHNOLOGIES INC COM CL A COM 60471A101 0 -575,000 -100.00 0 -100.00
2024-05-13 2024-03-31 13F MIRION TECHNOLOGIES INC COM CL A COM 60471A101 575,000 -500,000 -46.51 6,538 -40.67 0.0429
2024-02-13 2023-12-31 13F MIRION TECHNOLOGIES INC COM CL A COM 60471A101 1,075,000 300,000 38.71 11,019 90.33 0.0601
2023-11-13 2023-09-30 13F MIRION TECHNOLOGIES INC COM CL A COM 60471A101 775,000 0 0.00 5,789 -11.59 0.0567
2023-08-04 2023-06-30 13F MIRION TECHNOLOGIES INC COM CL A COM 60471A101 775,000 275,000 55.00 6,549 53.35 0.0532
2023-05-11 2023-03-31 13F MIRION TECHNOLOGIES INC COM CL A COM 60471A101 500,000 500,000 4,270 0.0697
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.