Mirion Technologies, Inc.
DE ˙ DB
15,28 € ↑0,78 (5,38%)
2026-06-01
DEL PRIS
SecurityDE:55I0 / Mirion Technologies, Inc.
InstitutionInvesco Ltd.
Latest Disclosed Ownership2,294,250 shares
Latest Disclosed Value $ 42,650,108
Invesco Ltd. reports 26.02% decrease in ownership of 55I0 / Mirion Technologies, Inc.

On May 12, 2026 - Invesco Ltd. filed a 13F-HR form disclosing ownership of 2,294,250 shares of Mirion Technologies, Inc. (DE:55I0) valued at $33,954,900 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 19, 2026 disclosing 3,101,120 shares of Mirion Technologies, Inc.. This represents a change in shares of -26.02% during the quarter. The current value of the position is $35,067,611 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-12 2026-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 2,294,250 -806,870 -26.02 42,650 -41.28 0.0008
2026-02-19 2025-12-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 3,101,120 344,230 12.49 72,628 13.26 0.0111
2025-11-13 2025-09-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 2,756,890 139,638 5.34 64,125 13.80 0.0101
2025-08-13 2025-06-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 2,617,252 2,295,414 713.22 56,349 1,107.65 0.0096
2025-05-12 2025-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 321,838 -168,976 -34.43 4,667 -45.52 0.0009
2025-02-13 2024-12-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 490,814 226,566 85.74 8,565 192.79 0.0016
2024-11-12 2024-09-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 264,248 15,688 6.31 2,925 9.59 0.0006
2024-08-13 2024-06-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 248,560 -5,974 -2.35 2,670 -7.77 0.0006
2024-05-14 2024-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 254,534 -27,146 -9.64 2,894 0.24 0.0006
2024-02-13 2023-12-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 281,680 78,894 38.91 2,887 90.69 0.0007
2023-11-13 2023-09-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 202,786 6,411 3.26 1,515 -8.74 0.0004
2023-08-11 2023-06-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 196,375 12,674 6.90 1,659 5.80 0.0004
2023-05-12 2023-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 183,701 71,087 63.12 1,569 110.75 0.0004
2023-02-13 2022-12-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 112,614 -241 -0.21 744 -11.74 0.0002
2022-11-14 2022-09-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 112,855 -3,719 -3.19 843 25.45 0.0003
2022-08-15 2022-06-30 13F MIRION TECHNOLOGIES COM CL A 60471A101 116,574 59,492 104.22 672 45.77 0.0002
2022-05-16 2022-03-31 13F MIRION TECHNOLOGIES COM CL A 60471A101 57,082 57,082 461 0.0001
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.