Mistras Group, Inc. (MG)

Latest Insider Confidence Score

2026Q1

51.1
Bullish

Company insider confidence (by quarter)

2009Q4 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Vahaviolos Sotirios J. Chair 10,352,803 Aug 19, 2024
Vahaviolos Aspasia Felice — 6,105,650 Sep 10, 2025
2025 Irrevocable Two-Year Grantor Retained Annuity Trust of Aspasia F. Vahaviolos — 5,251,358 Feb 27, 2026
Burgess Elizabeth Director 965,594 Apr 22, 2010
Bertolotti Dennis CEO 424,358 Mar 30, 2023

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Feb 25, 2026 Mar 6, 2026 SHUMAN-FABBRI NATALIA CEO Neutral 90.0 +101,190 404.76% ✗ -
Feb 25, 2026 Mar 6, 2026 Stamatakis Manuel N. Chair Neutral 90.0 +86,310 20.34% ✗ -
Feb 25, 2026 Mar 6, 2026 Prajzner Edward J CFO Sell 91.3 +35,899 30.16% ✗ $19.9K
Mar 25, 2025 Mar 4, 2026 Hammad Hanei Wail COO Sell 95.0 +23,378 35.98% ✗ $68.9K
Feb 25, 2026 Mar 4, 2026 Coggins Eileen Mary EVP, General Counsel Neutral 90.0 +7,242 48.28% ✗ -
Feb 25, 2026 Mar 3, 2026 D'Alterio Gennaro A. EVP, Chief Commercial Officer Sell 91.3 +18,388 63.33% ✗ $23.2K
Feb 27, 2026 2025 Irrevocable Two-Year Grantor Retained Annuity Trust of Aspasia F. Vahaviolos 10% Owner Neutral 52.5 - 0.00% ✗ -
Dec 31, 2025 Feb 27, 2026 Vahaviolos Aspasia Felice 10% Owner Neutral 27.5 -5,251,358 -86.01% ✗ -
Jan 2, 2026 Jan 9, 2026 Stamatakis Manuel N. Chair Neutral 90.0 +40,000 10.41% ✗ -
Jan 5, 2026 Jan 9, 2026 Prajzner Edward J CFO Sell 26.3 -2,699 -2.22% ✗ $34.1K
Jan 5, 2026 Jan 5, 2026 Prajzner Edward J CFO Sell 26.3 -2,699 -2.22% ✗ $34.1K
Jan 2, 2026 Jan 5, 2026 Stamatakis Manuel N. Chair Neutral 90.0 +40,000 10.41% ✗ -
Dec 4, 2025 Dec 5, 2025 PIZZI CHARLES P Director Neutral 27.5 -2,150 -3.13% ✗ -
Sep 24, 2025 Dec 4, 2025 D'Alterio Gennaro A. EVP, Chief Commercial Officer Sell 27.5 -475 -1.61% ✗ $4.5K
Sep 15, 2025 Oct 1, 2025 Coggins Eileen Mary EVP & Chief Legal Officer Neutral 90.0 +15,000 100.00% ✗ -
Oct 1, 2025 Coggins Eileen Mary EVP & Chief Legal Officer Neutral 52.5 - 0.00% ✗ -
Sep 15, 2025 Sep 25, 2025 Coggins Eileen Mary EVP & Chief Legal Officer Buy 95.0 +15,000 100.00% ✗ $143.3K
Sep 25, 2025 Coggins Eileen Mary EVP & Chief Legal Officer Neutral 52.5 - 0.00% ✗ -
Jul 2, 2025 Sep 10, 2025 Vahaviolos Aspasia Felice 10% Owner Neutral 90.0 +2,217,087 57.02% ✗ -
Jul 2, 2025 Sep 10, 2025 Sotirios Vahaviolos January 2023 2-Year Grantor Retained Annuity Trust 10% Owner Neutral 27.5 -4,685,578 -100.00% ✗ -
Sep 10, 2025 Vahaviolos Aspasia Felice 10% Owner Neutral 52.5 - 0.00% ✗ -
Sep 8, 2025 Sep 10, 2025 SHUMAN-FABBRI NATALIA CEO Neutral 90.0 +25,000 100.00% ✗ -
Jun 5, 2025 Jun 6, 2025 Stamatakis Manuel N. Chair Buy 87.5 +10,000 2.67% ✗ $77.1K
May 19, 2025 May 21, 2025 PIZZI CHARLES P Director Neutral 90.0 +14,447 26.60% ✗ -
May 19, 2025 May 21, 2025 DEBENEDICTIS NICHOLAS Director Neutral 85.0 +14,447 5.72% ✗ -
May 19, 2025 May 21, 2025 FORESE JAMES J Director Neutral 85.0 +14,447 9.28% ✗ -
May 19, 2025 May 21, 2025 GLANTON RICHARD H Director Neutral 90.0 +14,447 28.93% ✗ -
May 19, 2025 May 21, 2025 Lohmeier Michelle Director Neutral 90.0 +14,447 18.54% ✗ -
Mar 19, 2025 Mar 20, 2025 D'Alterio Gennaro A. EVP, Chief Commercial Officer Sell 27.5 -655 -2.17% ✗ $6.4K
Mar 19, 2025 Mar 20, 2025 Keefe Michael C EVP, General Counsel Sell 26.3 -1,791 -1.92% ✗ $17.7K
Mar 18, 2025 Mar 20, 2025 DEBENEDICTIS NICHOLAS Director Buy 90.0 +20,000 8.60% ✗ $198.8K
Mar 19, 2025 Mar 20, 2025 Stamatakis Manuel N. Chair Buy 87.5 +10,000 2.74% ✗ $99.5K
Mar 19, 2025 Mar 20, 2025 Prajzner Edward J CFO Sell 26.3 -3,418 -2.73% ✗ $34K
Mar 5, 2025 Mar 6, 2025 Stamatakis Manuel N. Chair Neutral 77.5 +5,700 1.59% ✗ -
Mar 5, 2025 Mar 6, 2025 Keefe Michael C EVP, General Counsel Neutral 90.0 +12,055 14.83% ✗ -
Mar 5, 2025 Mar 6, 2025 Prajzner Edward J CFO Neutral 90.0 +27,289 27.89% ✗ -
Mar 5, 2025 Mar 6, 2025 D'Alterio Gennaro A. EVP, Chief Commercial Officer Neutral 90.0 +12,736 73.07% ✗ -
Mar 5, 2025 Mar 6, 2025 Hammad Hanei Wail COO Neutral 90.0 +17,921 38.08% ✗ -
Jan 10, 2025 SHUMAN-FABBRI NATALIA CEO Neutral 52.5 - 0.00% ✗ -
Jan 6, 2025 Jan 7, 2025 Keefe Michael C EVP, General Counsel Sell 26.3 -3,149 -3.73% ✗ $28.5K
Jan 6, 2025 Jan 7, 2025 Prajzner Edward J CFO Sell 26.3 -2,756 -2.74% ✗ $25K
Jan 6, 2025 Jan 7, 2025 D'Alterio Gennaro A. EVP, Chief Commercial Officer Sell 27.5 -571 -3.17% ✗ $6.4K
Jan 6, 2025 Jan 7, 2025 Stamatakis Manuel N. Chair Neutral 52.5 - 0.00% ✗ -
Sep 25, 2024 Sep 25, 2024 Lange Michael J. Senior EVP Sell 22.5 -6,111 -2.48% ✗ $68.3K
Sep 23, 2024 Sep 24, 2024 Lange Michael J. Senior EVP Sell 20.0 -31,377 -11.29% ✗ $349.1K
Sep 20, 2024 Sep 20, 2024 Lange Michael J. Senior EVP Sell 20.0 -24,706 -8.16% ✗ $272.3K
Sep 16, 2024 Sep 20, 2024 Lange Michael J. Senior EVP Sell 20.0 -37,806 -11.10% ✗ $404.2K
Aug 7, 2024 Aug 19, 2024 DEBENEDICTIS NICHOLAS Director Neutral 82.5 +5,705 2.52% ✗ -
Aug 7, 2024 Aug 19, 2024 FORESE JAMES J Director Neutral 82.5 +5,705 3.80% ✗ -
Aug 7, 2024 Aug 19, 2024 Lohmeier Michelle Director Neutral 85.0 +5,705 7.90% ✗ -
Aug 7, 2024 Aug 19, 2024 GLANTON RICHARD H Director Neutral 85.0 +5,705 6.61% ✗ -
Aug 7, 2024 Aug 19, 2024 PIZZI CHARLES P Director Neutral 90.0 +5,705 11.73% ✗ -
Dec 23, 2019 Aug 19, 2024 Vahaviolos Sotirios J. Director Neutral 52.5 -2,112 -0.02% ✗ -
Jun 20, 2024 Jun 20, 2024 GLANTON RICHARD H Director Sell 22.5 -21,000 -32.20% ✗ $161.3K
May 14, 2024 May 16, 2024 Stamatakis Manuel N. CEO Neutral 90.0 +125,000 53.51% ✗ -
Mar 6, 2024 May 3, 2024 Sotirios Vahaviolos January 2023 2-Year Grantor Retained Annuity Trust 10% Owner Neutral 27.5 -2,049,140 -30.43% ✗ -
Mar 6, 2024 May 3, 2024 Vahaviolos Sotirios J. Director Neutral 90.0 +2,049,140 111.27% ✗ -
Apr 3, 2024 Apr 5, 2024 Prajzner Edward J CFO Sell 26.3 -1,255 -1.23% ✗ $11.7K
Apr 3, 2024 Apr 5, 2024 Smith John Anthony President Sell 26.3 -1,071 -1.05% ✗ $10.4K
Apr 3, 2024 Apr 5, 2024 Lange Michael J. Senior EVP Sell 43.8 -1,323 -0.39% ✗ $12.3K
Apr 3, 2024 Apr 5, 2024 Keefe Michael C EVP, General Counsel Sell 26.3 -1,250 -1.46% ✗ $11.6K
Mar 26, 2024 Apr 3, 2024 Hammad Hanei Wail EVP & Chief Transformation Off Neutral 90.0 +47,058 100.00% ✗ -
Apr 3, 2024 Hammad Hanei Wail EVP & Chief Transformation Off Neutral 52.5 - 0.00% ✗ -
Nov 7, 2023 Mar 27, 2024 Stamatakis Manuel N. CEO Buy 90.0 +15,000 6.86% ✗ $90K
Mar 13, 2024 Mar 15, 2024 PIZZI CHARLES P Director Neutral 90.0 +6,279 14.83% ✗ -
Mar 13, 2024 Mar 15, 2024 Lohmeier Michelle Director Neutral 85.0 +6,279 9.52% ✗ -
Mar 13, 2024 Mar 15, 2024 GLANTON RICHARD H Director Neutral 90.0 +6,279 10.65% ✗ -
Mar 13, 2024 Mar 15, 2024 FORESE JAMES J Director Neutral 82.5 +6,279 4.37% ✗ -
Mar 13, 2024 Mar 15, 2024 DEBENEDICTIS NICHOLAS Director Neutral 82.5 +6,279 2.85% ✗ -
Mar 12, 2024 Mar 14, 2024 Lange Michael J. Senior EVP Sell 26.3 -5,000 -1.44% ✗ $42.7K
Feb 28, 2024 Mar 4, 2024 Prajzner Edward J CFO Neutral 90.0 +17,500 20.74% ✗ -
Feb 28, 2024 Mar 4, 2024 Lange Michael J. Senior EVP Neutral 77.5 +4,500 1.31% ✗ -
Feb 28, 2024 Mar 4, 2024 Keefe Michael C EVP, General Counsel Neutral 90.0 +10,000 13.21% ✗ -
Feb 28, 2024 Mar 4, 2024 D'Alterio Gennaro A. EVP, Chief Commercial Officer Neutral 90.0 +8,000 80.00% ✗ -
Feb 28, 2024 Mar 4, 2024 Smith John Anthony President Neutral 85.0 +7,000 7.41% ✗ -
Dec 8, 2023 Feb 9, 2024 GLANTON RICHARD H Director Neutral 90.0 +33,870 135.06% ✗ -
Dec 21, 2023 Feb 6, 2024 Vahaviolos Sotirios J. Director Neutral 37.5 -30,600 -0.55% ✗ -
Jan 2, 2024 Jan 4, 2024 Lange Michael J. Senior EVP Sell 26.3 -5,764 -1.66% ✗ $42K
Jan 2, 2024 Jan 4, 2024 Keefe Michael C EVP, General Counsel Sell 26.3 -3,990 -5.01% ✗ $29K
Jan 2, 2024 Jan 4, 2024 Prajzner Edward J CFO Sell 26.3 -3,398 -3.87% ✗ $24.7K
Dec 20, 2023 Dec 20, 2023 DEBENEDICTIS NICHOLAS Director Buy 78.8 +3,000 1.38% ✗ $21.2K
Dec 11, 2023 Dec 13, 2023 DEBENEDICTIS NICHOLAS Director Buy 68.8 +2,100 0.97% ✗ $13.9K
Nov 14, 2023 Nov 15, 2023 Smith John Anthony President Sell 22.5 -10,018 -9.58% ✗ $63K
Nov 9, 2023 Nov 9, 2023 DEBENEDICTIS NICHOLAS Director Buy 78.8 +3,804 1.80% ✗ $22.6K
Oct 11, 2023 Oct 13, 2023 Stamatakis Manuel N. CEO Neutral 52.5 - 0.00% ✗ -
Oct 4, 2023 Smith John Anthony President Neutral 52.5 - 0.00% ✗ -
Sep 20, 2023 Sep 22, 2023 D'Alterio Gennaro A. EVP, Chief Commercial Officer Neutral 90.0 +10,000 100.00% ✗ -
Sep 19, 2023 D'Alterio Gennaro A. EVP, Chief Commercial Officer Neutral 52.5 - 0.00% ✗ -
Aug 11, 2023 Aug 11, 2023 Stamatakis Manuel N. Director Neutral 82.5 +10,223 4.91% ✗ -
Aug 9, 2023 Aug 11, 2023 PIZZI CHARLES P Director Neutral 90.0 +10,223 31.83% ✗ -
Aug 9, 2023 Aug 11, 2023 Lohmeier Michelle Director Neutral 90.0 +10,223 18.35% ✗ -
Aug 9, 2023 Aug 11, 2023 DEBENEDICTIS NICHOLAS Director Neutral 85.0 +10,223 5.08% ✗ -
Aug 9, 2023 Aug 11, 2023 FORESE JAMES J Director Neutral 85.0 +10,223 7.66% ✗ -
Mar 30, 2023 Mar 30, 2023 Keefe Michael C EVP, General Counsel Sell 37.5 -461 -0.58% ✗ $3.1K
Mar 30, 2023 Mar 30, 2023 Lange Michael J. Senior EVP Sell 52.5 -597 -0.17% ✗ $4K
Mar 30, 2023 Mar 30, 2023 Bertolotti Dennis CEO Sell 36.3 -3,172 -0.74% ✗ $21.1K
Mar 30, 2023 Mar 30, 2023 Prajzner Edward J CFO Sell 45.0 -417 -0.47% ✗ $2.8K
Mar 17, 2023 Mar 20, 2023 Lange Michael J. Senior EVP Sell 26.3 -4,533 -1.28% ✗ $25.3K
Mar 17, 2023 Mar 20, 2023 Keefe Michael C EVP, General Counsel Sell 26.3 -3,269 -4.08% ✗ $18.3K
Mar 17, 2023 Mar 20, 2023 Bertolotti Dennis CEO Sell 22.5 -19,950 -4.46% ✗ $111.5K