Mirion Technologies, Inc.
DE ˙ DB
15,18 € ↓ -0,11 (-0,72%)
2026-06-05
DEL PRIS
SecurityDE:55I0 / Mirion Technologies, Inc.
InstitutionGoldman Sachs Group Inc
Latest Disclosed Ownership12,387,666 shares
Ownership 5.50%
Goldman Sachs Group Inc ownership in 55I0 / Mirion Technologies, Inc.

2024-11-13 - Goldman Sachs Group Inc has filed an SC 13D/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 12,387,666 shares of Mirion Technologies, Inc. (DE:55I0). This represents 5.5 percent ownership of the company. In their previous filing dated 2024-11-06 , Goldman Sachs Group Inc had reported owning 15,003,465 shares, indicating a decrease of -17.43 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2024-11-13 2024-11-13 13D/A 15,003,465 12,387,666 -17.43 5.50 -17.91
2024-11-06 2024-11-06 13D/A 18,750,287 15,003,465 -19.98 6.70 -19.28
2024-08-01 2024-08-01 13D/A 21,588,585 18,750,287 -13.15 8.30 -13.54
2024-06-06 2024-06-06 13D/A 27,391,269 21,588,585 -21.18 9.60 -20.66
2023-07-07 2023-07-07 13D/A 27,391,269 12.10

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-15 2026-03-31 13F MIRION TECHNOLOGIES CMN 60471A101 7,349,668 2,101,162 40.03 136,630 11.15 0.0037
2026-02-10 2025-12-31 13F MIRION TECHNOLOGIES CMN 60471A101 5,248,506 193,914 3.84 122,920 4.55 0.0152
2025-11-14 2025-09-30 13F MIRION TECHNOLOGIES CMN 60471A101 5,054,592 4,416,331 691.93 117,570 755.61 0.0144
2025-08-14 2025-06-30 13F MIRION TECHNOLOGIES CMN 60471A101 638,261 58,617 10.11 13,742 63.51 0.0019
2025-06-27 2025-03-31 13F/A-2 MIRION TECHNOLOGIES CMN 60471A101 579,644 -8,295,814 -93.47 8,405 -94.57 0.0014
2025-05-16 2025-03-31 13F/A-1 MIRION TECHNOLOGIES CMN 60471A101 579,644 -8,295,814 8,405 0.0014
2025-05-09 2025-03-31 13F MIRION TECHNOLOGIES CMN 60471A101 579,644 -8,295,814 8,405 0.0003
2025-02-11 2024-12-31 13F MIRION TECHNOLOGIES CMN 60471A101 8,875,458 -25,933,562 -74.50 154,877 -59.81 0.0244
2024-11-14 2024-09-30 13F MIRION TECHNOLOGIES CMN 60471A101 34,809,020 -3,168,827 -8.34 385,336 -5.53 0.0620
2024-08-13 2024-06-30 13F MIRION TECHNOLOGIES CMN 60471A101 37,977,847 3,171,556 9.11 407,882 3.07 0.0690
2024-05-15 2024-03-31 13F MIRION TECHNOLOGIES CMN 60471A101 34,806,291 -589 -0.00 395,748 10.92 0.0701
2024-05-14 2023-12-31 13F/A-2 MIRION TECHNOLOGIES CMN 60471A101 34,806,880 6,295 0.02 356,771 37.24 0.0658
2024-03-01 2023-12-31 13F/A-1 MIRION TECHNOLOGIES CMN 60471A101 34,806,880 356,771
2024-02-13 2023-12-31 13F MIRION TECHNOLOGIES CMN 60471A101 34,806,880 6,295 356,771 0.0169
2024-05-15 2023-09-30 13F/A-1 MIRION TECHNOLOGIES CMN 60471A101 34,800,585 294 0.00 259,960 -11.60 0.0553
2023-11-14 2023-09-30 13F MIRION TECHNOLOGIES CMN 60471A101 34,800,585 294 259,960 0.0522
2024-05-14 2023-06-30 13F/A-1 MIRION TECHNOLOGIES CMN 60471A101 34,800,291 -11,545 -0.03 294,062 -1.09 0.0631
2023-08-15 2023-06-30 13F MIRION TECHNOLOGIES CMN 60471A101 34,800,291 -11,545 294,062 0.0592
2024-05-14 2023-03-31 13F/A-1 MIRION TECHNOLOGIES CMN 60471A101 34,811,836 18,514 0.05 297,293 29.27 0.0683
2023-05-11 2023-03-31 13F MIRION TECHNOLOGIES CMN 60471A101 34,811,836 18,514 297,293 0.0635
2024-05-14 2022-12-31 13F/A-1 MIRION TECHNOLOGIES CMN 60471A101 34,793,322 -16,969,764 -32.78 229,984 59,481.09 0.0564
2023-02-13 2022-12-31 13F MIRION TECHNOLOGIES CMN 60471A101 34,793,322 -16,969,764 229,984 0.0515
2024-05-14 2022-09-30 13F/A-1 MIRION TECHNOLOGIES CMN 60471A101 51,763,086 -541,812 -1.04 387 28.24 0.0977
2022-11-14 2022-09-30 13F MIRION TECHNOLOGIES CMN 60471A101 51,763,086 -541,812 386,671 0.0894
2024-05-14 2022-06-30 13F/A-2 MIRION TECHNOLOGIES CMN 60471A101 52,304,898 -876,852 -1.65 301 -99.93 0.0753
2022-08-18 2022-06-30 13F/A-1 MIRION TECHNOLOGIES CMN 60471A101 52,304,898 -876,852 301,276 0.0681
2022-08-15 2022-06-30 13F MIRION TECHNOLOGIES CMN 60471A101 52,304,898 -876,852 301,276 0.0206
2022-05-16 2022-03-31 13F MIRION TECHNOLOGIES CMN 60471A101 53,181,750 -83,993 -0.16 429,177 -23.04 0.0901
2022-02-17 2021-12-31 13F/A-1 MIRION TECHNOLOGIES CMN 60471A101 53,265,743 53,265,743 557,693 0.1107
2022-02-14 2021-12-31 13F MIRION TECHNOLOGIES CMN 60471A101 53,265,743 53,265,743 557,693 0.0321
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.