Mirion Technologies, Inc.
DE ˙ DB
15,28 € ↑0,78 (5,38%)
2026-06-01
AKTIENPREIS
SecurityDE:55I0 / Mirion Technologies, Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership3,766,842 shares
Latest Disclosed Value $ 70,025,592
UBS Group AG reports 22.37% decrease in ownership of 55I0 / Mirion Technologies, Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 3,766,842 shares of Mirion Technologies, Inc. (DE:55I0) valued at $55,749,262 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 4,852,587 shares of Mirion Technologies, Inc.. This represents a change in shares of -22.37% during the quarter. The current value of the position is $57,576,180 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)
2026-05-05 2026-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 3,766,842 -1,085,745 -22.37 70,026 -38.38 0.0020
2026-01-29 2025-12-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 4,852,587 55,754 1.16 113,648 1.86 0.0033
2025-11-13 2025-09-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 4,796,833 3,092,136 181.39 111,574 204.00 0.0175
2025-08-14 2025-06-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 1,704,697 207,491 13.86 36,702 69.06 0.0064
2025-05-13 2025-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 1,497,206 -49,275 -3.19 21,709 -19.55 0.0040
2025-02-14 2024-12-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 1,546,481 902,024 139.97 26,986 278.27 0.0050
2024-11-14 2024-09-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 644,457 219,535 51.66 7,134 56.34 0.0016
2024-08-14 2024-06-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 424,922 -153,078 -26.48 4,564 -30.56 0.0011
2024-05-13 2024-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 578,000 208,628 56.48 6,572 73.56 0.0016
2024-02-09 2023-12-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 369,372 234,970 174.83 3,786 277.47 0.0011
2023-11-09 2023-09-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 134,402 -2,253 -1.65 1,004 -13.08 0.0003
2023-08-11 2023-06-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 136,655 83,119 155.26 1,155 152.52 0.0004
2023-05-12 2023-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 53,536 46,369 646.98 457 872.34 0.0002
2023-02-08 2022-12-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 7,167 -2,833 -28.33 47 -37.33 0.0000
2022-11-10 2022-09-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 10,000 -48,000 -82.76 75 -77.54 0.0000
2022-08-10 2022-06-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 58,000 -56,000 -49.12 334 -63.70 0.0001
2022-05-16 2022-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 114,000 -27,153 -19.24 920 -37.71 0.0003
2022-02-14 2021-12-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 141,153 141,153 1,477 0.0004
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.