Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Mistras Group, Inc. (MG) since 2009 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Mistras Group, Inc.. Table 2 shows the detailed insider transactions. This company's CIK number is 1436126.
Total stock buying since 2009: $4,957,004.
Total stock sales since 2009: $152,872,915.
Total stock option exercises since 2009: $6,099,021.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 30,000 | $298,268 | 0 | $0 | 0 | $0 |
| 2024 | 0 | $0 | 126,000 | $1,297,794 | 0 | $0 |
| 2023 | 23,904 | $147,578 | 10,018 | $63,013 | 0 | $0 |
| 2022 | 753 | $4,796 | 0 | $0 | 0 | $0 |
| 2021 | 20,000 | $197,799 | 4,357 | $39,387 | 0 | $0 |
| 2020 | 263,383 | $1,266,251 | 47,721 | $217,130 | 0 | $0 |
| 2019 | 63,546 | $883,506 | 0 | $0 | 288,970 | $3,889,535 |
| 2018 | 35,000 | $510,655 | 327,474 | $7,164,602 | 0 | $0 |
| 2017 | 25,000 | $515,355 | 774,157 | $16,953,230 | 5,000 | $50,000 |
| 2016 | 5,000 | $101,250 | 296,909 | $6,565,999 | 21,000 | $210,000 |
| 2015 | 4,900 | $82,805 | 71,066 | $1,420,742 | 0 | $0 |
| 2014 | 3,000 | $51,150 | 189,029 | $4,505,668 | 8,750 | $128,362 |
| 2013 | 0 | $0 | 128,984 | $2,751,013 | 32,813 | $359,566 |
| 2012 | 0 | $0 | 83,412 | $1,896,735 | 55,767 | $737,868 |
| 2011 | 25,000 | $443,125 | 2,810,595 | $43,072,398 | 66,194 | $661,940 |
| 2010 | 32,168 | $328,236 | 0 | $0 | 162,500 | $61,750 |
| 2009 | 10,100 | $126,230 | 5,757,007 | $66,925,204 | 0 | $0 |
| Trading Period | Insider Buying | Insider Sales | Option Exercises | |||
|---|---|---|---|---|---|---|
| year-month | Shares | Value | Shares | Value | Shares | Value |
| 2025-03 | 30,000 | $298,268 | 0 | $0 | 0 | $0 |
| 2024-09 | 0 | $0 | 100,000 | $1,093,864 | 0 | $0 |
| 2024-06 | 0 | $0 | 21,000 | $161,280 | 0 | $0 |
| 2024-03 | 0 | $0 | 5,000 | $42,650 | 0 | $0 |
| 2023-12 | 5,100 | $35,000 | 0 | $0 | 0 | $0 |
| 2023-11 | 18,804 | $112,578 | 10,018 | $63,013 | 0 | $0 |
| 2022-03 | 753 | $4,796 | 0 | $0 | 0 | $0 |
| 2021-09 | 0 | $0 | 4,357 | $39,387 | 0 | $0 |
| 2021-08 | 5,000 | $48,099 | 0 | $0 | 0 | $0 |
| 2021-05 | 15,000 | $149,700 | 0 | $0 | 0 | $0 |
| 2020-12 | 20,000 | $147,000 | 0 | $0 | 0 | $0 |
| 2020-11 | 0 | $0 | 47,721 | $217,130 | 0 | $0 |
| 2020-03 | 243,383 | $1,119,251 | 0 | $0 | 0 | $0 |
| 2019-11 | 5,000 | $73,000 | 0 | $0 | 0 | $0 |
| 2019-08 | 0 | $0 | 0 | $0 | 274,495 | $3,694,702 |
| 2019-07 | 0 | $0 | 0 | $0 | 14,475 | $194,833 |
| 2019-06 | 3,546 | $48,757 | 0 | $0 | 0 | $0 |
| 2019-05 | 20,000 | $275,459 | 0 | $0 | 0 | $0 |
| 2019-03 | 35,000 | $486,290 | 0 | $0 | 0 | $0 |
| 2018-12 | 35,000 | $510,655 | 0 | $0 | 0 | $0 |
| 2018-08 | 0 | $0 | 321,000 | $7,036,320 | 0 | $0 |
| 2018-06 | 0 | $0 | 3,651 | $73,093 | 0 | $0 |
| 2018-05 | 0 | $0 | 2,823 | $55,189 | 0 | $0 |
| 2017-12 | 0 | $0 | 4,000 | $91,200 | 0 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-03-20 | Debenedictis Nicholas (Director) | Buy | 1,038 | 10.01 | 10,390 |
| 2025-03-19 | Stamatakis Manuel N. (Executive Chairman) | Buy | 10,000 | 9.95 | 99,500 |
| 2025-03-19 | Debenedictis Nicholas (Director) | Buy | 8,962 | 10.04 | 89,978 |
| 2025-03-18 | Debenedictis Nicholas (Director) | Buy | 10,000 | 9.84 | 98,400 |
| 2024-09-25 | Lange Michael J. (Senior EVP) | Sale | 6,111 | 11.17 | 68,259 |
| 2024-09-24 | Lange Michael J. (Senior EVP) | Sale | 18,550 | 11.36 | 210,728 |
| 2024-09-23 | Lange Michael J. (Senior EVP) | Sale | 12,827 | 10.79 | 138,403 |
| 2024-09-20 | Lange Michael J. (Senior EVP) | Sale | 24,706 | 11.02 | 272,260 |
| 2024-09-19 | Lange Michael J. (Senior EVP) | Sale | 11,803 | 10.80 | 127,472 |
| 2024-09-18 | Lange Michael J. (Senior EVP) | Sale | 5,013 | 10.74 | 53,839 |
| 2024-09-17 | Lange Michael J. (Senior EVP) | Sale | 13,832 | 10.64 | 147,172 |
| 2024-09-16 | Lange Michael J. (Senior EVP) | Sale | 7,158 | 10.58 | 75,731 |
| 2024-06-20 | Glanton Richard H (Director) | Sale | 21,000 | 7.68 | 161,280 |
| 2024-03-12 | Lange Michael J. (Senior EVP) | Sale | 5,000 | 8.53 | 42,650 |
| 2023-12-20 | Debenedictis Nicholas (Director) | Buy | 3,000 | 7.05 | 21,150 |
| 2023-12-13 | Debenedictis Nicholas (Director) | Buy | 2,000 | 6.60 | 13,200 |
| 2023-12-11 | Debenedictis Nicholas (Director) | Buy | 100 | 6.50 | 650 |
| 2023-11-14 | Smith John Anthony (Executive Vice President) | Sale | 10,018 | 6.29 | 63,013 |
| 2023-11-09 | Debenedictis Nicholas (Director) | Buy | 3,684 | 5.94 | 21,882 |
| 2023-11-08 | Debenedictis Nicholas (Director) | Buy | 120 | 5.80 | 696 |
| 2023-11-07 | Stamatakis Manuel N. (Interim President and CEO) | Buy | 15,000 | 6.00 | 90,000 |
| 2022-03-25 | Glanton Richard H (Director) | Buy | 753 | 6.37 | 4,796 |
| 2021-09-20 | Glanton Richard H (Director) | Sale | 4,357 | 9.04 | 39,387 |
| 2021-08-17 | Stamatakis Manuel N. (Director) | Buy | 5,000 | 9.62 | 48,099 |
| 2021-05-11 | Stamatakis Manuel N. (Director) | Buy | 15,000 | 9.98 | 149,700 |
| 2020-12-18 | Stamatakis Manuel N. (Director) | Buy | 20,000 | 7.35 | 147,000 |
| 2020-11-16 | Stamatakis Manuel N. (Director) | Sale | 47,721 | 4.55 | 217,130 |
| 2020-03-31 | Lohmeier Michelle (Director) | Buy | 3,636 | 4.50 | 16,362 |
| 2020-03-31 | Bertolotti Dennis (President and CEO) | Buy | 1,500 | 4.48 | 6,720 |
| 2020-03-31 | Debenedictis Nicholas (Director) | Buy | 16,468 | 4.32 | 71,141 |
| 2020-03-30 | Lohmeier Michelle (Director) | Buy | 5,547 | 4.49 | 24,906 |
| 2020-03-30 | Weldon Wayne Curtis (Director) | Buy | 4,030 | 4.94 | 19,908 |
| 2020-03-30 | Bertolotti Dennis (President and CEO) | Buy | 6,000 | 4.28 | 25,650 |
| 2020-03-30 | Stamatakis Manuel N. (Director) | Buy | 50,000 | 4.67 | 233,500 |
| 2020-03-30 | Vahaviolos Sotirios J. (Executive Chairman) | Buy | 87,670 | 4.52 | 396,268 |
| 2020-03-30 | Debenedictis Nicholas (Director) | Buy | 58,532 | 4.77 | 279,197 |
| 2020-03-30 | Forese James J (Director) | Buy | 10,000 | 4.56 | 45,599 |
| 2019-11-08 | Stamatakis Manuel N. (Director) | Buy | 5,000 | 14.60 | 73,000 |
| 2019-08-21 | Vahaviolos Sotirios J. (Executive Chairman) | Option Ex | 133,461 | 13.46 | 1,796,385 |
| 2019-08-16 | Vahaviolos Sotirios J. (Executive Chairman) | Option Ex | 141,034 | 13.46 | 1,898,317 |
| 2019-07-16 | Lange Michael J. (Vice Chairman and Senior EVP) | Option Ex | 14,475 | 13.46 | 194,833 |
| 2019-06-05 | Wolk Jonathan H (Sr. EVP and COO) | Buy | 2,500 | 13.75 | 34,375 |
| 2019-06-03 | Wolk Jonathan H (Sr. EVP and COO) | Buy | 1,046 | 13.75 | 14,382 |
| 2019-05-31 | Debenedictis Nicholas (Director) | Buy | 900 | 13.85 | 12,465 |
| 2019-05-30 | Debenedictis Nicholas (Director) | Buy | 100 | 13.85 | 1,385 |
| 2019-05-24 | Debenedictis Nicholas (Director) | Buy | 1,000 | 13.95 | 13,950 |
| 2019-05-23 | Debenedictis Nicholas (Director) | Buy | 1,010 | 13.99 | 14,129 |
| 2019-05-20 | Debenedictis Nicholas (Director) | Buy | 2,995 | 13.64 | 40,851 |
| 2019-05-17 | Debenedictis Nicholas (Director) | Buy | 2,495 | 14.03 | 35,004 |
| 2019-05-16 | Debenedictis Nicholas (Director) | Buy | 1,500 | 14.15 | 21,225 |
| 2019-05-15 | Stamatakis Manuel N. (Director) | Buy | 5,000 | 14.04 | 70,200 |
| 2019-05-13 | Stamatakis Manuel N. (Director) | Buy | 5,000 | 13.25 | 66,250 |
| 2019-03-18 | Debenedictis Nicholas (Director) | Buy | 7,000 | 13.90 | 97,300 |
| 2019-03-15 | Debenedictis Nicholas (Director) | Buy | 10,000 | 13.99 | 139,900 |
| 2019-03-14 | Stamatakis Manuel N. (Director) | Buy | 15,000 | 13.85 | 207,750 |
| 2019-03-14 | Debenedictis Nicholas (Director) | Buy | 3,000 | 13.78 | 41,340 |
| 2018-12-20 | Stamatakis Manuel N. (Director) | Buy | 10,000 | 14.84 | 148,400 |
| 2018-12-20 | Debenedictis Nicholas (Director) | Buy | 7,304 | 14.90 | 108,829 |
| 2018-12-19 | Debenedictis Nicholas (Director) | Buy | 2,696 | 14.55 | 39,226 |
| 2018-12-18 | Stamatakis Manuel N. (Director) | Buy | 15,000 | 14.28 | 214,200 |
| 2018-08-09 | Vahaviolos Sotirios J. (Executive Chairman) | Sale | 321,000 | 21.92 | 7,036,320 |
| 2018-06-06 | Keefe Michael C (EVP, General Counsel) | Sale | 3,651 | 20.02 | 73,093 |
| 2018-05-10 | Weldon Wayne Curtis (Director) | Sale | 2,823 | 19.55 | 55,189 |
| 2017-12-01 | Keefe Michael C (EVP, General Counsel) | Sale | 4,000 | 22.80 | 91,200 |
| 2017-08-22 | Wolk Jonathan H (Sr. EVP, COO, CFO, Treasurer) | Buy | 2,500 | 17.41 | 43,525 |
| 2017-08-18 | Stamatakis Manuel N. (Director) | Buy | 3,000 | 17.59 | 52,770 |
| 2017-08-15 | Keefe Michael C (EVP, General Counsel) | Sale | 4,462 | 18.05 | 80,539 |
| 2017-08-14 | Stamatakis Manuel N. (Director) | Buy | 4,500 | 18.88 | 84,960 |
| 2017-08-08 | Vahaviolos Sotirios J. (Chairman and CEO) | Sale | 90,490 | 21.25 | 1,922,912 |
| 2017-07-11 | Vahaviolos Sotirios J. (Chairman and CEO) | Sale | 94,877 | 21.08 | 2,000,007 |
| 2017-06-06 | Vahaviolos Sotirios J. (Chairman and CEO) | Sale | 94,206 | 21.23 | 1,999,993 |
| 2017-05-11 | Bertolotti Dennis (President and COO) | Sale | 17,800 | 21.59 | 384,302 |
| 2017-05-11 | Keefe Michael C (EVP, General Counsel) | Sale | 8,004 | 21.18 | 169,524 |
| 2017-05-08 | Vahaviolos Sotirios J. (Chairman and CEO) | Sale | 95,557 | 20.93 | 2,000,008 |
| 2017-04-13 | Vahaviolos Sotirios J. (Chairman and CEO) | Sale | 94,607 | 21.14 | 1,999,991 |
| 2017-03-24 | Debenedictis Nicholas (Director) | Buy | 2,500 | 20.25 | 50,625 |
| 2017-03-08 | Vahaviolos Sotirios J. (Chairman and CEO) | Sale | 89,166 | 22.43 | 1,999,993 |
| 2017-02-28 | Bertolotti Dennis (President and COO) | Sale | 5,000 | 22.52 | 112,600 |
| 2017-02-28 | Bertolotti Dennis (President and COO) | Option Ex | 5,000 | 10.00 | 50,000 |
| 2017-02-14 | Vahaviolos Sotirios J. (Chairman and CEO) | Sale | 85,985 | 23.26 | 2,000,011 |
| 2017-02-07 | Debenedictis Nicholas (Director) | Buy | 2,500 | 22.50 | 56,250 |
| 2017-02-03 | Stamatakis Manuel N. (Director) | Buy | 5,000 | 22.81 | 114,050 |
| 2017-01-19 | Debenedictis Nicholas (Director) | Buy | 2,500 | 22.52 | 56,300 |
| 2017-01-18 | Debenedictis Nicholas (Director) | Buy | 2,500 | 22.75 | 56,875 |
| 2017-01-12 | Vahaviolos Sotirios J. (Chairman and CEO) | Sale | 81,103 | 24.66 | 1,999,999 |
| 2016-12-13 | Vahaviolos Sotirios J. (Chairman and CEO) | Sale | 92,795 | 21.55 | 1,999,732 |
| 2016-11-04 | Vahaviolos Sotirios J. (Chairman and CEO) | Sale | 95,980 | 20.84 | 2,000,223 |
| 2016-10-25 | Vahaviolos Sotirios J. (Chairman and CEO) | Sale | 85,234 | 23.46 | 1,999,589 |
| 2016-08-16 | Bertolotti Dennis (President and COO) | Sale | 21,000 | 24.97 | 524,370 |
| 2016-08-16 | Bertolotti Dennis (President and COO) | Option Ex | 21,000 | 10.00 | 210,000 |
| 2016-01-29 | Bertolotti Dennis (Group EVP, Services) | Sale | 1,900 | 22.15 | 42,085 |
| 2016-01-25 | Debenedictis Nicholas (Director) | Buy | 5,000 | 20.25 | 101,250 |
| 2015-11-18 | Carlos Mark F. (Group EVP, Products & Systems) | Sale | 30,000 | 20.14 | 604,200 |
| 2015-10-30 | Debenedictis Nicholas (Director) | Buy | 2,500 | 18.25 | 45,625 |
| 2015-10-27 | Debenedictis Nicholas (Director) | Buy | 400 | 18.50 | 7,400 |
| 2015-08-10 | Wolk Jonathan H (EVP, Chief Financial Officer) | Buy | 2,000 | 14.89 | 29,780 |
| 2015-05-20 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Sale | 5,993 | 18.08 | 108,353 |
| 2015-04-16 | Keefe Michael C (EVP, General Counsel) | Sale | 2,400 | 18.53 | 44,472 |
| 2015-01-26 | Glanton Richard H (Director) | Sale | 1,845 | 20.96 | 38,671 |
| 2015-01-23 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Sale | 3,328 | 20.92 | 69,621 |
| 2015-01-21 | Bertolotti Dennis (President and COO, Services) | Sale | 2,500 | 20.57 | 51,425 |
| 2015-01-16 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Sale | 25,000 | 20.16 | 504,000 |
| 2014-11-13 | Wolk Jonathan H (EVP, Chief Financial Officer) | Buy | 3,000 | 17.05 | 51,150 |
| 2014-08-20 | Glanton Richard H (Director) | Sale | 1,701 | 20.98 | 35,686 |
| 2014-05-05 | Bertolotti Dennis (President and COO, Services) | Sale | 1,800 | 22.61 | 40,698 |
| 2014-05-02 | Lange Michael J. (Group EVP, Services) | Sale | 14,118 | 22.80 | 321,890 |
| 2014-05-01 | Lange Michael J. (Group EVP, Services) | Sale | 6,238 | 22.43 | 139,918 |
| 2014-04-24 | Lange Michael J. (Group EVP, Services) | Sale | 11,708 | 23.37 | 273,615 |
| 2014-04-23 | Lange Michael J. (Group EVP, Services) | Sale | 25,367 | 23.95 | 607,539 |
| 2014-04-22 | Lange Michael J. (Group EVP, Services) | Sale | 17,295 | 23.73 | 410,410 |
| 2014-04-21 | Lange Michael J. (Group EVP, Services) | Sale | 9,981 | 23.60 | 235,551 |
| 2014-02-20 | Lange Michael J. (Group EVP, Services) | Sale | 12,269 | 23.47 | 287,953 |
| 2014-02-20 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Sale | 8,002 | 23.40 | 187,246 |
| 2014-02-19 | Lange Michael J. (Group EVP, Services) | Sale | 13,529 | 23.94 | 323,884 |
| 2014-02-19 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Sale | 304 | 23.94 | 7,277 |
| 2014-02-18 | Lange Michael J. (Group EVP, Services) | Sale | 3,000 | 24.26 | 72,780 |
| 2014-02-06 | Bertolotti Dennis (President and COO, Services) | Sale | 3,000 | 22.84 | 68,520 |
| 2014-01-30 | Lange Michael J. (Group EVP, Services) | Sale | 11,967 | 23.97 | 286,848 |
| 2014-01-16 | Keefe Michael C (EVP, General Counsel) | Sale | 8,750 | 24.48 | 214,200 |
| 2014-01-16 | Keefe Michael C (EVP, General Counsel) | Option Ex | 8,750 | 14.67 | 128,362 |
| 2014-01-15 | Lange Michael J. (Group EVP, Services) | Sale | 19,773 | 24.67 | 487,799 |
| 2014-01-14 | Lange Michael J. (Group EVP, Services) | Sale | 20,227 | 24.91 | 503,854 |
| 2013-11-18 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Sale | 11,216 | 19.90 | 223,198 |
| 2013-08-20 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Sale | 8,784 | 18.16 | 159,517 |
| 2013-08-12 | Joyce Francis T (EVP, CFO and Treasurer) | Sale | 26,250 | 19.36 | 508,200 |
| 2013-08-12 | Joyce Francis T (EVP, CFO and Treasurer) | Option Ex | 26,250 | 10.03 | 263,287 |
| 2013-06-19 | Lange Michael J. (Group EVP, Services) | Sale | 12,122 | 22.08 | 267,653 |
| 2013-06-18 | Lange Michael J. (Group EVP, Services) | Sale | 7,078 | 22.03 | 155,928 |
| 2013-05-22 | Lange Michael J. (Group EVP, Services) | Sale | 800 | 22.02 | 17,616 |
| 2013-05-15 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Sale | 9,500 | 20.74 | 197,029 |
| 2013-05-14 | Bertolotti Dennis (President and COO, Services) | Sale | 1,500 | 20.47 | 30,705 |
| 2013-04-01 | Lange Michael J. (Group EVP, Services) | Sale | 10,000 | 23.49 | 234,899 |
| 2013-03-08 | Lange Michael J. (Group EVP, Services) | Sale | 10,000 | 22.04 | 220,400 |
| 2013-02-15 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Sale | 497 | 21.05 | 10,461 |
| 2013-02-14 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Sale | 1,503 | 21.50 | 32,314 |
| 2013-02-01 | Lange Michael J. (Group EVP, Services) | Sale | 10,000 | 22.16 | 221,600 |
| 2013-01-14 | Keefe Michael C (EVP, General Counsel) | Sale | 6,563 | 21.71 | 142,482 |
| 2013-01-14 | Keefe Michael C (EVP, General Counsel) | Option Ex | 6,563 | 14.67 | 96,279 |
| 2013-01-02 | Lange Michael J. (Group EVP, Services) | Sale | 13,171 | 24.98 | 329,011 |
| 2012-12-06 | Lange Michael J. (Group EVP, Services) | Sale | 1,489 | 22.00 | 32,758 |
| 2012-12-05 | Lange Michael J. (Group EVP, Services) | Sale | 8,231 | 22.09 | 181,822 |
| 2012-12-04 | Lange Michael J. (Group EVP, Services) | Sale | 7,109 | 22.05 | 156,753 |
| 2012-11-09 | Cole Phillip T. (Group EVP, International) | Sale | 10,000 | 21.15 | 211,500 |
| 2012-10-24 | Bertolotti Dennis (President and COO, Services) | Sale | 1,600 | 21.52 | 34,432 |
| 2012-10-23 | Bertolotti Dennis (President and COO, Services) | Sale | 3,500 | 21.45 | 75,075 |
| 2012-10-22 | Bertolotti Dennis (President and COO, Services) | Sale | 2,000 | 21.61 | 43,220 |
| 2012-05-07 | Lange Michael J. (Group EVP, Services) | Sale | 16,227 | 23.80 | 386,202 |
| 2012-05-07 | Lange Michael J. (Group EVP, Services) | Option Ex | 16,227 | 13.46 | 218,415 |
| 2012-05-02 | Lange Michael J. (Group EVP, Services) | Sale | 10,000 | 23.26 | 232,600 |
| 2012-05-02 | Lange Michael J. (Group EVP, Services) | Option Ex | 10,000 | 13.46 | 134,600 |
| 2012-05-01 | Lange Michael J. (Group EVP, Services) | Sale | 3,415 | 23.53 | 80,354 |
| 2012-05-01 | Lange Michael J. (Group EVP, Services) | Option Ex | 3,415 | 13.46 | 45,965 |
| 2012-04-17 | Lange Michael J. (Group EVP, Services) | Sale | 2,378 | 23.50 | 55,883 |
| 2012-04-17 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Option Ex | 9,500 | 10.00 | 95,000 |
| 2012-04-16 | Keefe Michael C (EVP, General Counsel) | Sale | 16,625 | 23.34 | 388,027 |
| 2012-04-16 | Keefe Michael C (EVP, General Counsel) | Option Ex | 16,625 | 14.67 | 243,888 |
| 2012-01-12 | Keefe Michael C (EVP, General Counsel) | Sale | 838 | 21.61 | 18,109 |
| 2011-11-04 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Option Ex | 20,000 | 10.00 | 200,000 |
| 2011-10-28 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Sale | 25,000 | 22.79 | 569,750 |
| 2011-10-28 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Option Ex | 25,000 | 10.00 | 250,000 |
| 2011-10-27 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Sale | 21,194 | 22.82 | 483,753 |
| 2011-10-27 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Option Ex | 21,194 | 10.00 | 211,940 |
| 2011-05-11 | Tc Ndt Holdings, L.l.c. (10% Owner) | Sale | 2,764,401 | 15.20 | 42,018,895 |
| 2011-04-15 | Forese James J (Director) | Buy | 25,000 | 17.73 | 443,125 |
| 2010-08-16 | Vahaviolos Sotirios J. (Chairman, President and CEO) | Buy | 15,100 | 9.76 | 147,421 |
| 2010-08-13 | Carlos Mark F. (Group EVP, Products & Systems) | Buy | 500 | 9.70 | 4,850 |
| 2010-08-13 | Vahaviolos Sotirios J. (Chairman, President and CEO) | Buy | 9,900 | 9.89 | 97,950 |
| 2010-05-04 | Dickinson Daniel M (Director) | Buy | 4,000 | 12.00 | 48,000 |
| 2010-04-20 | Burgess Elizabeth (Director) | Buy | 2,668 | 11.25 | 30,015 |
| 2010-04-01 | Peterik Paul (Chief Financial Officer) | Option Ex | 149,500 | .38 | 56,810 |
| 2010-02-12 | Peterik Paul (Chief Financial Officer) | Option Ex | 13,000 | .38 | 4,940 |
| 2009-10-14 | Lange Michael J. (Group EVP, Services) | Sale | 200,000 | 11.62 | 2,325,000 |
| 2009-10-14 | Cole Phillip T. (Group EVP, International) | Sale | 55,250 | 11.62 | 642,281 |
| 2009-10-14 | Carlos Mark F. (Group EVP, Products & Systems) | Sale | 49,725 | 11.62 | 578,053 |
| 2009-10-14 | Burgess Elizabeth (Director) | Sale | 1,304,508 | 11.62 | 15,164,905 |
| 2009-10-14 | Vahaviolos Sotirios J. (Chairman, President and CEO) | Sale | 234,000 | 11.62 | 2,720,250 |
| 2009-10-14 | Tc Ndt Holdings, L.l.c. (10% Owner) | Sale | 1,304,508 | 11.62 | 15,164,905 |
| 2009-10-14 | Dickinson Daniel M (Director) | Sale | 1,304,508 | 11.62 | 15,164,905 |
| 2009-10-14 | Forese James J (Director) | Sale | 1,304,508 | 11.62 | 15,164,905 |
| 2009-10-08 | Peterik Paul (Chief Financial Officer) | Buy | 2,000 | 12.50 | 25,000 |
| 2009-10-08 | Stamatakis Manuel N. (Director) | Buy | 6,000 | 12.50 | 75,000 |
| 2009-10-08 | Genesi Ralph L. (Group EVP, Marketing and Sales) | Buy | 2,000 | 12.50 | 25,000 |
| 2009-10-08 | Vahaviolos Sotirios J. (Chairman, President and CEO) | Buy | 100 | 12.30 | 1,230 |
Insider trading activities including stock purchases, stock sales, and option exercises of MG listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Mistras Group, Inc. (symbol MG, CIK number 1436126) see the Securities and Exchange Commission (SEC) website.