Mistras Group, Inc.
US ˙ NYSE ˙ US60649T1079

SecurityMG / Mistras Group, Inc.
InstitutionGeode Capital Management, Llc
Latest Disclosed Ownership353,411 shares
Latest Disclosed Value $ 5,225,171
Geode Capital Management, Llc reports 1.96% decrease in ownership of MG / Mistras Group, Inc.

On May 15, 2026 - Geode Capital Management, Llc filed a 13F-HR form disclosing ownership of 353,411 shares of Mistras Group, Inc. (US:MG) valued at $5,223,415 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 360,480 shares of Mistras Group, Inc.. This represents a change in shares of -1.96% during the quarter. The current value of the position is $6,223,568 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)
2026-05-15 2026-03-31 13F MISTRAS GROUP COM 60649T107 353,411 -7,069 -1.96 5,225 14.56 0.0002
2026-02-09 2025-12-31 13F MISTRAS GROUP COM 60649T107 360,480 -47,183 -11.57 4,562 13.68 0.0003
2025-11-12 2025-09-30 13F MISTRAS GROUP COM 60649T107 407,663 -10,090 -2.42 4,013 19.87 0.0003
2025-08-08 2025-06-30 13F MISTRAS GROUP COM 60649T107 417,753 -37,998 -8.34 3,347 -30.60 0.0002
2025-05-13 2025-03-31 13F MISTRAS GROUP COM 60649T107 455,751 219 0.05 4,823 16.84 0.0004
2025-02-12 2024-12-31 13F MISTRAS GROUP COM 60649T107 455,532 2,143 0.47 4,128 -19.94 0.0003
2024-11-12 2024-09-30 13F MISTRAS GROUP COM 60649T107 453,389 4,014 0.89 5,156 38.42 0.0004
2024-08-09 2024-06-30 13F MISTRAS GROUP COM 60649T107 449,375 21,919 5.13 3,726 -8.84 0.0003
2024-05-13 2024-03-31 13F MISTRAS GROUP COM 60649T107 427,456 24,455 6.07 4,087 38.51 0.0004
2024-02-13 2023-12-31 13F MISTRAS GROUP COM 60649T107 403,001 8,878 2.25 2,950 37.34 0.0003
2023-11-13 2023-09-30 13F MISTRAS GROUP COM 60649T107 394,123 8,547 2.22 2,148 -27.82 0.0003
2023-08-11 2023-06-30 13F MISTRAS GROUP COM 60649T107 385,576 224,155 138.86 2,977 172.03 0.0003
2023-05-15 2023-03-31 13F MISTRAS GROUP COM 60649T107 161,421 3,388 2.14 1,094 0.0001
2023-02-13 2022-12-31 13F MISTRAS GROUP COM 60649T107 158,033 2,413 1.55 1 -100.00 0.0001
2022-11-14 2022-09-30 13F MISTRAS GROUP COM 60649T107 155,620 1,151 0.75 694 -24.32 0.0001
2022-08-12 2022-06-30 13F MISTRAS GROUP COM 60649T107 154,469 -154,318 -49.98 917 -55.07 0.0001
2022-05-13 2022-03-31 13F MISTRAS GROUP COM 60649T107 308,787 7,888 2.62 2,041 -8.68 0.0003
2022-02-11 2021-12-31 13F MISTRAS GROUP COM 60649T107 300,899 11,404 3.94 2,235 -24.01 0.0003
2021-11-12 2021-09-30 13F MISTRAS GROUP COM 60649T107 289,495 -12,757 -4.22 2,941 -1.01 0.0004
2021-08-13 2021-06-30 13F MISTRAS GROUP COM 60649T107 302,252 27,424 9.98 2,971 -5.23 0.0004
2021-05-12 2021-03-31 13F MISTRAS GROUP COM 60649T107 274,828 8,830 3.32 3,135 51.89 0.0005
2021-02-12 2020-12-31 13F MISTRAS GROUP COM 60649T107 265,998 3,226 1.23 2,064 100.97 0.0003
2020-11-13 2020-09-30 13F MISTRAS GROUP COM 60649T107 262,772 8,100 3.18 1,027 2.19 0.0002
2020-08-13 2020-06-30 13F MISTRAS GROUP COM 60649T107 254,672 5,600 2.25 1,005 -5.19 0.0002
2020-05-14 2020-03-31 13F MISTRAS GROUP COM 60649T107 249,072 25,235 11.27 1,060 -66.81 0.0003
2020-02-20 2019-12-31 13F/A-1 MISTRAS GROUP COM 60649T107 223,837 8,363 3.88 3,194 -9.60 0.0007
2020-02-13 2019-12-31 13F MISTRAS GROUP COM 60649T107 223,837 8,363 3,194 407.0473
2019-11-12 2019-09-30 13F MISTRAS GROUP COM 60649T107 215,474 3,684 1.74 3,533 16.10 0.0008
2019-08-14 2019-06-30 13F MISTRAS GROUP COM 60649T107 211,790 13,983 7.07 3,043 11.42 0.0007
2019-05-14 2019-03-31 13F MISTRAS GROUP COM 60649T107 197,807 18,990 10.62 2,731 6.22 0.0007
2019-03-06 2018-12-31 13F/A-1 MISTRAS GROUP COM 60649T107 178,817 14,334 8.71 2,571 -27.86 0.0008
2019-02-13 2018-12-31 13F MISTRAS GROUP COM 60649T107 178,817 14,334 2,571
2018-11-13 2018-09-30 13F MISTRAS GROUP COM 60649T107 164,483 -2,984 -1.78 3,564 12.75 0.0010
2018-08-14 2018-06-30 13F MISTRAS GROUP COM 60649T107 167,467 16,101 10.64 3,161 10.33 0.0010
2018-05-15 2018-03-31 13F MISTRAS GROUP COM 60649T107 151,366 8,852 6.21 2,865 -14.32 0.0009
2018-02-13 2017-12-31 13F MISTRAS GROUP COM 60649T107 142,514 2,098 1.49 3,344 16.19 0.0011
2017-11-14 2017-09-30 13F MISTRAS GROUP COM 60649T107 140,416 1,872 1.35 2,878 -5.42 0.0011
2017-08-14 2017-06-30 13F MISTRAS GROUP COM 60649T107 138,544 3,433 2.54 3,043 5.40 0.0012
2017-06-21 2017-03-31 13F/A-1 MISTRAS GROUP COM 60649T107 135,111 15,447 12.91 2,887 -6.02 0.0012
2017-05-12 2017-03-31 13F MISTRAS GROUP COM 60649T107 135,111 2,887
2017-02-14 2016-12-31 13F MISTRAS GROUP COM 60649T107 119,664 9,110 8.24 3,072 18.43 0.0014
2016-11-10 2016-09-30 13F MISTRAS GROUP COM 60649T107 110,554 1,716 1.58 2,594 -0.12 0.0013
2016-08-12 2016-06-30 13F MISTRAS GROUP COM 60649T107 108,838 2,008 1.88 2,597 -1.85 0.0014
2016-05-13 2016-03-31 13F MISTRAS GROUP COM 60649T107 106,830 1,600 1.52 2,646 31.77 0.0014
2016-02-12 2015-12-31 13F MISTRAS GROUP COM 60649T107 105,230 680 0.65 2,008 49.52 0.0011
2015-11-13 2015-09-30 13F MISTRAS GROUP COM 60649T107 104,550 5,861 5.94 1,343 -28.30 0.0008
2015-08-14 2015-06-30 13F MISTRAS GROUP COM 60649T107 98,689 8,788 9.78 1,873 8.20 0.0011
2015-05-14 2015-03-31 13F MISTRAS GROUP COM 60649T107 89,901 4,601 5.39 1,731 10.82 0.0010
2015-02-12 2014-12-31 13F MISTRAS GROUP COM 60649T107 85,300 3,343 4.08 1,562 -6.52 0.0009
2014-11-14 2014-09-30 13F MISTRAS GROUP COM 60649T107 81,957 0 0.00 1,671 -16.82 0.0011
2014-08-13 2014-06-30 13F MISTRAS GROUP COM 60649T107 81,957 1,355 1.68 2,009 9.48 0.0013
2014-05-14 2014-03-31 13F MISTRAS GROUP COM 60649T107 80,602 2,780 3.57 1,835 12.99 0.0012
2014-02-14 2013-12-31 13F MISTRAS GROUP COM 60649T107 77,822 10,778 16.08 1,624 42.46 0.0011
2013-11-14 2013-09-30 13F MISTRAS GROUP COM 60649T107 67,044 2,305 3.56 1,140 0.18 0.0009
2013-08-14 2013-06-30 13F MISTRAS GROUP COM 60649T107 64,739 64,739 1,138 0.0010
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.