MIRNYSEMeasuring & Controlling Devices, NECFiscal year ends December 31
Mirion Technologies, Inc.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Jul 29, 2026
$14.93−0.22 (-1.45%)
Close on Oct 19, 2026
- Market cap
- $4.11B
- P/E (TTM)
- 165.9
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
100.0%
262M of 249M shares
Institutional holders
351
60 new, 65 sold out
Net institutional buying
13M
In Q2 2026
Insider trades, 12 months
1 buys · 7 sales
Net sold $19.99M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 35,690,382 | 14.80% | 13G (passive) amendment | Sep 30, 2025 |
| Vanguard Portfolio Management | 18,118,998 | 7.40% | 13G (passive) | Mar 31, 2026 |
| T. Rowe Price Investment Management, Inc. | 15,112,855 | 6.10% | 13G (passive) amendment | Dec 31, 2025 |
| The Goldman Sachs Group, Inc. | 12,387,666 | 5.50% | 13D (active) amendment | Nov 12, 2024 |
| Vanguard Capital Management | 12,327,150 | 5.03% | 13G (passive) | Mar 31, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of MIR | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 38,262,307 | 15.36% | $686.04M | +404,610 | 0.01% |
| Vanguard Portfolio Management LLC | 18,179,850 | 7.30% | $325.96M | +274,128 | 0.01% |
| T. Rowe Price Investment Management, Inc. | 14,288,075 | 5.74% | $256.19K | −339,720 | 0.17% |
| Vanguard Capital Management LLC | 10,613,869 | 4.26% | $190.31M | +108,674 | 0.00% |
| Goldman Sachs Group Inc | 10,406,605 | 4.18% | $186.59M | +3,056,937 | 0.02% |
| State Street Corp | 9,923,609 | 3.98% | $177.93M | +493,592 | 0.01% |
| Alyeska Investment Group, L.P. | 9,534,955 | 3.83% | $170.96M | +6,833,375 | 0.44% |
| Cooperman Leon G | 8,383,441 | 3.37% | $150.32M | – | 4.24% |
| FMR LLC | 7,329,386 | 2.94% | $131.42M | +777,694 | 0.01% |
| Congress Asset Management Co /Ma | 6,685,434 | 2.68% | $119.87M | +5,571,373 | 0.74% |
| Geode Capital Management, LLC | 6,280,048 | 2.52% | $112.62M | +339,873 | 0.01% |
| Maverick Capital Ltd | 5,245,039 | 2.11% | $94.04M | +2,595,160 | 0.83% |
| Dimensional Fund Advisors LP | 4,859,755 | 1.95% | $87.13M | +165,467 | 0.02% |
| Jupiter Topco LLC | 4,114,766 | 1.65% | $73.78M | New | 0.03% |
| Bamco Inc /Ny/ | 3,906,083 | 1.57% | $70.04M | +2,692,335 | 0.11% |
| Morgan Stanley | 3,896,754 | 1.56% | $69.87M | +1,611,686 | 0.00% |
| Neuberger Berman Group LLC | 3,199,539 | 1.28% | $57.37M | +2,343,150 | 0.04% |
| American Century Companies Inc | 3,176,241 | 1.28% | $56.95M | +443,479 | 0.03% |
| Invesco Ltd. | 2,769,589 | 1.11% | $49.66M | +475,339 | 0.00% |
| UBS Group AG | 2,686,713 | 1.08% | $48.17M | −1,080,129 | 0.01% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 351 | 262M | 100.0% | 60 / 137 | 117 / 65 | 45M | 33M |
| Q1 2026 | 362 | 254M | 100.0% | 61 / 137 | 131 / 58 | 62M | 32M |
| Q4 2025 | 366 | 255M | 100.0% | 82 / 148 | 94 / 54 | 32M | 32M |
| Q3 2025 | 342 | 255M | 100.0% | 91 / 128 | 92 / 47 | 79M | 33M |
| Q2 2025 | 301 | 209M | 84.0% | 102 / 114 | 63 / 30 | 38M | 14M |
| Q1 2025 | 230 | 185M | 74.5% | 47 / 93 | 66 / 39 | 22M | 23M |
| Q4 2024 | 224 | 194M | 77.9% | 75 / 82 | 55 / 23 | 45M | 56M |
| Q3 2024 | 176 | 205M | 82.5% | 36 / 74 | 43 / 14 | 33M | 11M |
| Q2 2024 | 155 | 199M | 79.9% | 35 / 59 | 43 / 22 | 18M | 12M |
| Q1 2024 | 143 | 193M | 77.4% | 32 / 49 | 45 / 14 | 16M | 15M |
| Q4 2023 | 125 | 191M | 76.9% | 14 / 49 | 44 / 15 | 11M | 9M |
| Q3 2023 | 127 | 190M | 76.1% | 16 / 64 | 28 / 12 | 16M | 9M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of MIR | Value | % of fund | As of |
|---|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 14,739,838 | 5.92% | $264.29M | 0.24% | Jun 30, 2026 |
| Vanguard Total Stock Market Index Fund | 7,372,559 | 2.96% | $132.19M | 0.01% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 6,285,136 | 2.52% | $112.69M | 0.14% | Jun 30, 2026 |
| Vanguard Small-Cap Index Fund | 5,332,549 | 2.14% | $95.61M | 0.05% | Jun 30, 2026 |
| T. Rowe Price Small-Cap Stock Fund, Inc. | 5,202,951 | 2.09% | $93.29M | 1.00% | Jun 30, 2026 |
| Vanguard Information Technology Index Fund | 5,162,495 | 2.07% | $94.37M | 0.05% | May 31, 2026 |
| Vanguard Small-Cap Value Index Fund | 3,376,579 | 1.36% | $60.54M | 0.09% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 2,807,117 | 1.13% | $50.33M | 0.05% | Jun 30, 2026 |
| Janus Henderson Triton Fund | 2,801,535 | 1.12% | $50.23M | 0.85% | Jun 30, 2026 |
| T. Rowe Price Institutional Small-Cap Stock Fund | 2,799,492 | 1.12% | $50.19M | 1.00% | Jun 30, 2026 |
| Congress Small Cap Growth Fund | 2,725,000 | 1.09% | $40.82M | 2.03% | Jul 31, 2026 |
| Fidelity Small Cap Index Fund | 2,647,390 | 1.06% | $39.66M | 0.12% | Jul 31, 2026 |
| Small Cap Growth Fund | 2,423,491 | 0.97% | $36.30M | 0.65% | Jul 31, 2026 |
| State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF | 2,239,233 | 0.90% | $40.15M | 0.24% | Jun 30, 2026 |
| iShares S&P Small-Cap 600 Growth ETF | 2,198,559 | 0.88% | $39.42M | 0.48% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Thomas D. Logan | Chief Executive Officer, Director | 10,679,385 | 4.29% | May 7, 2026 |
| Brian Schopfer | Chief Financial Officer | 2,199,971 | 0.88% | Sep 2, 2026 |
| Christopher A. Moore | Chief Accounting Officer (PAO) | 37,646 | 0.02% | May 8, 2026 |
| Emmanuelle Lee | Chief Legal Officer | 256,777 | 0.10% | Apr 2, 2026 |
| Alison Ulrich | Chief Human Resources Officer | 36,235 | 0.01% | Apr 2, 2026 |
| Loic Eloy | Nuclear & Safety President | 316,424 | 0.13% | Mar 3, 2026 |
| Lawrence D. Kingsley | Director | 4,103,024 | 1.65% | Sep 30, 2026 |
| Jody Markopoulos | Director | 111,157 | 0.04% | Sep 30, 2026 |
| John W. Kuo | Director | 109,509 | 0.04% | May 14, 2026 |
| Kenneth Bockhorst | Director | 105,573 | 0.04% | May 14, 2026 |
| Sheila Rege | Director | 59,044 | 0.02% | May 14, 2026 |
| Steven W. Etzel | Director | 116,838 | 0.05% | May 14, 2026 |
| Robert Cascella | Director | 80,892 | 0.03% | May 14, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Jody Markopoulos Director | Sep 30, 2026 | Award | +1,333 | $14.34 | $19.12K | 82,842 |
| Lawrence D. Kingsley Director | Sep 30, 2026 | Award | +1,333 | $14.34 | $19.12K | 73,858 |
| Brian Schopfer Chief Financial Officer | Sep 2, 2026 | Buy | +20,000 | $15.60 | $312.00K | 933,290 |
| Lawrence D. Kingsley Director | Jun 30, 2026 | Award | +1,095 | $17.46 | $19.12K | 72,525 |
| John W. Kuo Director | May 13, 2026 | Award | +7,383 | – | – | 80,119 |
| Jody Markopoulos Director | May 13, 2026 | Award | +7,383 | – | – | 81,509 |
| Lawrence D. Kingsley Director | May 13, 2026 | Award | +7,383 | – | – | 71,430 |
| Steven W. Etzel Director | May 13, 2026 | Award | +7,383 | – | – | 87,448 |
| Robert Cascella Director | May 13, 2026 | Award | +7,383 | – | – | 60,801 |
| Sheila Rege Director | May 13, 2026 | Award | +7,383 | – | – | 49,877 |
| Kenneth Bockhorst Director | May 13, 2026 | Award | +7,383 | – | – | 77,258 |
| Christopher A. Moore Chief Accounting Officer (PAO) | May 7, 2026 | Sale | −8,400 | $19.64 | $164.98K | 22,157 |
| Thomas D. Logan Chief Executive Officer, Director | May 6, 2026 | Gift | −311,851 | – | – | 52,209 |
| Emmanuelle Lee Chief Legal Officer | Apr 1, 2026 | Tax withholding | −4,680 | $18.59 | $87.00K | 82,431 |
| Alison Ulrich Chief Human Resources Officer | Apr 1, 2026 | Tax withholding | −2,053 | $18.59 | $38.17K | 36,235 |
| Brian Schopfer Chief Financial Officer | Apr 1, 2026 | Tax withholding | −7,377 | $18.59 | $137.14K | 913,290 |
| Christopher A. Moore Chief Accounting Officer (PAO) | Apr 1, 2026 | Tax withholding | −1,903 | $18.59 | $35.38K | 30,557 |
| Thomas D. Logan Chief Executive Officer, Director | Apr 1, 2026 | Tax withholding | −22,614 | $18.59 | $420.39K | 364,060 |
| Lawrence D. Kingsley Director | Mar 31, 2026 | Award | +1,104 | $17.32 | $19.12K | 64,047 |
| Brian Schopfer Chief Financial Officer | Mar 2, 2026 | Award | +64,906 | – | – | 949,166 |
| Brian Schopfer Chief Financial Officer | Mar 2, 2026 | Tax withholding | −28,499 | $21.61 | $615.86K | 920,667 |
| Loic Eloy Nuclear & Safety President | Mar 2, 2026 | Award | +15,577 | – | – | 113,347 |
| Thomas D. Logan Chief Executive Officer, Director | Mar 2, 2026 | Gift | −3,093,812 | – | – | 386,674 |
| Thomas D. Logan Chief Executive Officer, Director | Mar 2, 2026 | Tax withholding | −127,184 | $21.61 | $2.75M | 3,480,486 |
| Thomas D. Logan Chief Executive Officer, Director | Mar 2, 2026 | Award | +318,632 | – | – | 3,607,670 |
| Brian Schopfer Chief Financial Officer | Mar 1, 2026 | Tax withholding | −9,172 | $21.61 | $198.21K | 884,260 |
| Thomas D. Logan Chief Executive Officer, Director | Mar 1, 2026 | Tax withholding | −20,650 | $21.61 | $446.25K | 3,289,038 |
| Alison Ulrich Chief Human Resources Officer | Mar 1, 2026 | Tax withholding | −2,360 | $21.61 | $51.00K | 38,288 |
| Alison Ulrich Chief Human Resources Officer | Mar 1, 2026 | Award | +5,552 | – | – | 40,648 |
| Emmanuelle Lee Chief Legal Officer | Mar 1, 2026 | Award | +11,568 | – | – | 90,295 |
| Emmanuelle Lee Chief Legal Officer | Mar 1, 2026 | Tax withholding | −3,184 | $21.61 | $68.81K | 87,111 |
| Christopher A. Moore Chief Accounting Officer (PAO) | Mar 1, 2026 | Tax withholding | −1,397 | $21.61 | $30.19K | 32,460 |
| Christopher A. Moore Chief Accounting Officer (PAO) | Mar 1, 2026 | Award | +5,552 | – | – | 33,857 |
| Lawrence D. Kingsley Director | Dec 31, 2025 | Award | +806 | $23.70 | $19.10K | 62,943 |
| Brian Schopfer Chief Financial Officer | Dec 27, 2025 | Tax withholding | −8,500 | $23.76 | $201.96K | 893,432 |
| Thomas D. Logan Chief Executive Officer, Director | Dec 27, 2025 | Tax withholding | −39,863 | $23.76 | $947.14K | 3,309,688 |
| Alison Ulrich Chief Human Resources Officer | Dec 27, 2025 | Tax withholding | −134 | $23.76 | $3.18K | 35,096 |
| Emmanuelle Lee Chief Legal Officer | Dec 27, 2025 | Tax withholding | −5,913 | $23.76 | $140.49K | 78,727 |
| John W. Kuo Director | Dec 11, 2025 | Gift | −4,860 | – | – | 72,736 |
| Lawrence D. Kingsley Director | Dec 10, 2025 | Sale | −350,000 | $24.73 | $8.66M | 3,509,075 |
| Kenneth Bockhorst Director | Dec 8, 2025 | Gift | −9,680 | – | – | 69,875 |
| Brian Schopfer Chief Financial Officer | Dec 8, 2025 | Gift | −100 | – | – | 901,932 |
| Brian Schopfer Chief Financial Officer | Dec 5, 2025 | Gift | −2,400 | – | – | 902,032 |
| Lawrence D. Kingsley Director | Nov 24, 2025 | Gift | −40,925 | – | – | 3,859,075 |
| Lawrence D. Kingsley Director | Nov 21, 2025 | Sale | −300,000 | $23.83 | $7.15M | 3,900,000 |
| Loic Eloy Nuclear & Safety President | Nov 11, 2025 | Sale | −45,000 | $27.24 | $1.23M | 97,770 |
| Emmanuelle Lee Chief Legal Officer | Nov 10, 2025 | Sale(10b5-1 plan) | −12,500 | $27.41 | $342.63K | 84,640 |
| Brian Schopfer Chief Financial Officer | Nov 6, 2025 | Sale(10b5-1 plan) | −50,000 | $27.65 | $1.38M | 954,432 |
| Brian Schopfer Chief Financial Officer | Nov 6, 2025 | Award | +100,000 | – | – | 1,004,432 |
| Brian Schopfer Chief Financial Officer | Nov 6, 2025 | Returned to company | −100,000 | – | – | 399,935 |
| Brian Schopfer Chief Financial Officer | Nov 6, 2025 | Sale(10b5-1 plan) | −50,000 | $27.66 | $1.38M | 904,432 |
| Thomas D. Logan Chief Executive Officer, Director | Oct 30, 2025 | Gift | −106,188 | – | – | 3,349,551 |
| Brian Schopfer Chief Financial Officer | Oct 30, 2025 | Gift | −15,000 | – | – | 904,432 |
| Lawrence D. Kingsley Director | Sep 30, 2025 | Award | +850 | $22.49 | $19.12K | 62,137 |
| Thomas D. Logan Chief Executive Officer, Director | Aug 12, 2025 | Sale | −175,000 | $21.79 | $3.81M | 3,567,305 |
| Thomas D. Logan Chief Executive Officer, Director | Aug 11, 2025 | Sale | −325,000 | $21.31 | $6.93M | 3,742,305 |
| Loic Eloy Nuclear & Safety President | Aug 5, 2025 | Sale | −22,166 | $21.30 | $472.14K | 142,770 |
| Jody Markopoulos Director | Jun 30, 2025 | Award | +880 | – | – | 74,126 |
| John W. Kuo Director | Jun 30, 2025 | Award | +1,024 | – | – | 77,596 |
| Brian Schopfer Chief Financial Officer | Jun 25, 2025 | Returned to company | −75,000 | – | – | 499,935 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Moore Christopher Officer | May 7, 2026 | 8,400 | $164.98K | May 7, 2026 | Restricted Stock |
| D. Kingsley Revocable Trust TTEE Lawrence D. Kingsley dtd 3/20/06 Lawrence Director | Dec 10, 2025 | 350,000 | $8.75M | Dec 10, 2025 | Private |
| D. Kingsley Revocable Trust TTEE Lawrence D. Kingsley dtd 3/20/06 Lawrence Director | Nov 21, 2025 | 300,000 | $7.13M | Nov 21, 2025 | Private |
| Lee Emmanuelle Officer | Nov 10, 2025 | 12,500 | $343.13K | Nov 10, 2025 | Restricted Stock Units |
| Brian Schopfer Officer | Nov 6, 2025 | 100,000 | $2.77M | Nov 6, 2025 | IPO |
| Logan Thomas Officer, Chairman of the Board | Aug 11, 2025 | 500,000 | $10.66M | Aug 11, 2025 | PSU Grant |
| Eloy Loic Officer | Aug 5, 2025 | 22,166 | $472.14K | Aug 5, 2025 | Restricted Stock |
| Brian Schopfer Officer | Jun 25, 2025 | 75,000 | $1.58M | Jun 25, 2025 | IPO |
| Lawrence D. Kingsley Member of immediate family of any of the foregoing | May 21, 2025 | 150,000 | $2.65M | May 21, 2025 | Private Transaction |
| Kingsley Revocable Trust Diane Member of immediate family of any of the foregoing | May 21, 2025 | 350,000 | $6.27M | May 21, 2025 | Private Transaction |
| Brian Schopfer Officer | May 21, 2025 | 75,000 | $1.36M | May 21, 2025 | IPO |
| Thomas D. Logan Former Affiliate | Jan 23, 2025 | 7,500 | $133.05K | Jan 23, 2025 | Gift |
| Thomas D. Logan Former Affiliate | Dec 23, 2024 | 7,500 | $132.83K | Dec 23, 2024 | Gift |
| Thomas D. Logan Former Affiliate | Nov 26, 2024 | 7,500 | $126.90K | Nov 25, 2024 | Gift |
| Thomas D. Logan Officer, CEO | Nov 25, 2024 | 7,500 | $126.90K | Nov 25, 2024 | Gift |