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MGMistras Group, Inc.

Market cap
$685.95M
as of 2026-10-23
Latest close
$21.53
as of 2026-10-23
Sector
Industrials
as of 2026-10-24
Industry
Security & Protection Services
as of 2026-10-24

Cluster

No cluster in the last 90 days under the default rule (14d · ≥2 insiders · all roles).

Form 4 historysince 2023-10-13

Dashed line = amended filing (Form 4/A)

InsiderTradedFiledTypeSharesPriceValueOwned after10b5-1 planFiling
Vahaviolos Aspasia FeliceSep 10Oct 74/AG387,093$0.00$02,160,790NoForm 4/A
D'Alterio Gennaro A.EVP, Chief Commercial OfficerSep 20Sep 22F662$20.75$13,73746,577NoForm 4
Coggins Eileen MaryChief Legal OfficerSep 18Sep 18F1,636$19.66$32,16413,364NoForm 4
2025 Irrevocable Two-Year Grantor Retained Annuity Trust of Aspasia F. VahaviolosSep 10Sep 14G387,093$0.00$03,923,718NoForm 4
Vahaviolos Aspasia FeliceSep 10Sep 14G387,093$0.00$02,154,541NoForm 4
Shuman-Fabbri NataliaPresident and CEOSep 8Sep 9F2,410$19.42$46,802123,780NoForm 4
Foglia Stephanie AthenaJun 10Jun 12G411,875$0.00$04,310,811NoForm 4
Vahaviolos Aspasia FeliceJun 10Jun 12G411,875$0.00$01,794,839NoForm 4
Foglia Stephanie AthenaApr 27Jun 4G528,672$0.00$04,722,686NoForm 4
Foglia Stephanie AthenaApr 17Jun 4S1,000$18.00Sale −$18,0001,692NoForm 4
Foglia Stephanie AthenaMar 3Jun 4S1,000$15.50Sale −$15,5002,692NoForm 4
Foglia Stephanie AthenaFeb 3Jun 4S1,000$14.60Sale −$14,6003,692NoForm 4
Foglia Stephanie AthenaJan 5Jun 4S1,000$13.60Sale −$13,6004,692NoForm 4
Vahaviolos Aspasia FeliceDec 31, 2025Jun 4G528,672$0.00$01,382,964NoForm 4
Pizzi Charles PMay 19May 21A6,862$0.00$073,480NoForm 4
Lohmeier MichelleMay 19May 21A6,862$0.00$099,223NoForm 4
Forese James JMay 19May 21A6,862$0.00$0177,043NoForm 4
Glanton Richard HMay 19May 21A6,862$0.00$068,431NoForm 4
Debenedictis NicholasMay 19May 21A6,862$0.00$0248,820NoForm 4
Hammad Hanei WailEVP & Chief Operating OfficerMar 26Mar 26F2,865$15.10$43,26261,777NoForm 4
Prajzner Edward JSr. EVP and CFOMar 22Mar 23F1,367$14.05$19,206148,076NoForm 4
Prajzner Edward JSr. EVP and CFOMar 16Mar 17F2,239$14.61$32,712149,443NoForm 4
Prajzner Edward JSr. EVP and CFOMar 7Mar 10F2,540$14.82$37,643151,682NoForm 4
D'Alterio Gennaro A.EVP, Chief Commercial OfficerMar 4Mar 10F184$15.68$2,88547,239NoForm 4
Prajzner Edward JSr. EVP and CFOMar 4Mar 10F698$15.68$10,945154,222NoForm 4
Hammad Hanei WailEVP & Chief Operating OfficerMar 4Mar 10F337$15.68$5,28464,642NoForm 4
Stamatakis Manuel N.Executive ChairmanMar 4Mar 10F814$15.68$12,764509,795NoForm 4
Hammad Hanei WailEVP & Chief Operating OfficerFeb 25Mar 94/AA29,762$0.00$088,357NoForm 4/A
Hammad Hanei WailEVP & Chief Operating OfficerMar 25, 2025Mar 94/AF6,384$10.79$68,88358,595NoForm 4/A
Prajzner Edward JSr. EVP and CFOFeb 28Mar 6F1,303$15.28$19,910154,920NoForm 4
Prajzner Edward JSr. EVP and CFOFeb 25Mar 6A37,202$0.00$0156,223NoForm 4
Stamatakis Manuel N.Executive ChairmanFeb 25Mar 6A86,310$0.00$0510,609NoForm 4
Shuman-Fabbri NataliaPresident and CEOFeb 25Mar 6A101,190$0.00$0126,190NoForm 4
Coggins Eileen MaryEVP, General CounselFeb 25Mar 4A7,242$0.00$022,242NoForm 4
D'Alterio Gennaro A.EVP, Chief Commercial OfficerFeb 28Mar 3F655$15.28$10,00848,285NoForm 4
D'Alterio Gennaro A.EVP, Chief Commercial OfficerFeb 28Mar 3F862$15.28$13,17147,423NoForm 4
D'Alterio Gennaro A.EVP, Chief Commercial OfficerFeb 25Mar 3A19,905$0.00$048,940NoForm 4
Vahaviolos Aspasia FeliceDec 31, 2025Feb 27G5,251,358$0.00$0854,292NoForm 4
Prajzner Edward JSr. EVP and CFOJan 5Jan 94/AF2,699$12.65$34,142119,021NoForm 4/A
Stamatakis Manuel N.Executive ChairmanJan 2Jan 94/AA40,000$0.00$0424,299NoForm 4/A
Pizzi Charles PDec 4, 2025Dec 5, 2025G2,150$0.00$066,618NoForm 4
D'Alterio Gennaro A.EVP, Chief Commercial OfficerSep 24, 2025Dec 4, 2025F475$9.53$4,52729,035NoForm 4
Coggins Eileen MaryEVP & Chief Legal OfficerSep 15, 2025Oct 1, 20254/AA15,000$0.00$015,000NoForm 4/A
Coggins Eileen MaryEVP & Chief Legal OfficerSep 15, 2025Oct 1, 20254/AA · derivative25,000$9.55$238,75025,000NoForm 4/A
Shuman-Fabbri NataliaPresident and CEOSep 8, 2025Sep 10, 2025A25,000$0.00$025,000NoForm 4
Shuman-Fabbri NataliaPresident and CEOSep 8, 2025Sep 10, 2025A · derivative35,000$9.71$339,85035,000NoForm 4
Sotirios Vahaviolos January 2023 2-Year Grantor Retained Annuity TrustJul 2, 2025Sep 10, 2025G4,685,578$0.00$0not reportedNoForm 4
Vahaviolos Aspasia FeliceJul 2, 2025Sep 10, 2025W2,217,087$0.00$06,105,650NoForm 4
Stamatakis Manuel N.Executive ChairmanJun 5, 2025Jun 6, 2025P10,000$7.71Purchase +$77,100384,299NoForm 4
Lohmeier MichelleMay 19, 2025May 21, 2025A14,447$0.00$092,361NoForm 4
Glanton Richard HMay 19, 2025May 21, 2025A14,447$0.00$061,569NoForm 4
Forese James JMay 19, 2025May 21, 2025A14,447$0.00$0170,181NoForm 4
Debenedictis NicholasMay 19, 2025May 21, 2025A14,447$0.00$0241,958NoForm 4
Pizzi Charles PMay 19, 2025May 21, 2025A14,447$0.00$068,768NoForm 4
Debenedictis NicholasMar 20, 2025Mar 20, 2025P1,038$10.01Purchase +$10,390227,511NoForm 4
Prajzner Edward JSr. EVP and CFOMar 19, 2025Mar 20, 2025F626$10.00$6,260124,512NoForm 4
Prajzner Edward JSr. EVP and CFOMar 19, 2025Mar 20, 2025F1,489$10.00$14,890123,023NoForm 4
Prajzner Edward JSr. EVP and CFOMar 19, 2025Mar 20, 2025F1,303$9.84$12,822121,720NoForm 4
Stamatakis Manuel N.Executive ChairmanMar 19, 2025Mar 20, 2025P10,000$9.95Purchase +$99,500374,299NoForm 4
Debenedictis NicholasMar 19, 2025Mar 20, 2025P8,962$10.04Purchase +$89,978226,473NoForm 4
Keefe Michael CEVP, General CounselMar 19, 2025Mar 20, 2025F762$10.00$7,62092,587NoForm 4
Keefe Michael CEVP, General CounselMar 19, 2025Mar 20, 2025F1,029$9.84$10,12591,558NoForm 4
D'Alterio Gennaro A.EVP, Chief Commercial OfficerMar 19, 2025Mar 20, 2025F655$9.84$6,44529,510NoForm 4
Debenedictis NicholasMar 18, 2025Mar 20, 2025P10,000$9.84Purchase +$98,400217,511NoForm 4
Hammad Hanei WailEVP & Chief Operating OfficerMar 5, 2025Mar 6, 2025A14,521$0.00$061,579NoForm 4
Hammad Hanei WailEVP & Chief Operating OfficerMar 5, 2025Mar 6, 2025A3,400$0.00$064,979NoForm 4
D'Alterio Gennaro A.EVP, Chief Commercial OfficerMar 5, 2025Mar 6, 2025A11,036$0.00$028,465NoForm 4
D'Alterio Gennaro A.EVP, Chief Commercial OfficerMar 5, 2025Mar 6, 2025A1,700$0.00$030,165NoForm 4
Prajzner Edward JSr. EVP and CFOMar 5, 2025Mar 6, 2025A22,689$0.00$0120,538NoForm 4
Prajzner Edward JSr. EVP and CFOMar 5, 2025Mar 6, 2025A4,600$0.00$0125,138NoForm 4
Keefe Michael CEVP, General CounselMar 5, 2025Mar 6, 2025A10,455$0.00$091,749NoForm 4
Keefe Michael CEVP, General CounselMar 5, 2025Mar 6, 2025A1,600$0.00$093,349NoForm 4
Stamatakis Manuel N.Executive ChairmanMar 5, 2025Mar 6, 2025A5,700$0.00$0364,299NoForm 4
Stamatakis Manuel N.Executive ChairmanJan 6, 2025Jan 7, 2025A · derivative375,000$9.06$3,397,500375,000NoForm 4
D'Alterio Gennaro A.EVP, Chief Commercial OfficerJan 6, 2025Jan 7, 2025F571$11.28$6,44117,429NoForm 4
Prajzner Edward JSr. EVP and CFOJan 6, 2025Jan 7, 2025F2,756$9.06$24,96997,849NoForm 4
Keefe Michael CEVP, General CounselJan 6, 2025Jan 7, 2025F3,149$9.06$28,53081,294NoForm 4
Lange Michael J.Senior EVPSep 25, 2024Sep 25, 2024S6,111$11.17Sale −$68,260240,515YesForm 4
Lange Michael J.Senior EVPSep 24, 2024Sep 24, 2024S18,550$11.36Sale −$210,728246,626YesForm 4
Lange Michael J.Senior EVPSep 23, 2024Sep 24, 2024S12,827$10.79Sale −$138,403265,176YesForm 4
Lange Michael J.Senior EVPSep 20, 2024Sep 20, 2024S24,706$11.02Sale −$272,260278,003YesForm 4
Lange Michael J.Senior EVPSep 19, 2024Sep 20, 2024S11,803$10.80Sale −$127,472302,709YesForm 4
Lange Michael J.Senior EVPSep 18, 2024Sep 20, 2024S5,013$10.74Sale −$53,840314,512YesForm 4
Lange Michael J.Senior EVPSep 17, 2024Sep 20, 2024S13,832$10.64Sale −$147,172319,525YesForm 4
Lange Michael J.Senior EVPSep 16, 2024Sep 20, 2024S7,158$10.58Sale −$75,732333,357YesForm 4
Pizzi Charles PAug 7, 2024Aug 19, 2024A5,705$0.00$054,321NoForm 4
Glanton Richard HAug 7, 2024Aug 19, 2024A5,705$0.00$047,822NoForm 4
Lohmeier MichelleAug 7, 2024Aug 19, 2024A5,705$0.00$077,914NoForm 4
Forese James JAug 7, 2024Aug 19, 2024A5,705$0.00$0155,734NoForm 4
Debenedictis NicholasAug 7, 2024Aug 19, 2024A5,705$0.00$0207,511NoForm 4
Glanton Richard HJul 3, 2024Aug 19, 2024G700$0.00$041,417NoForm 4
Glanton Richard HJul 3, 2024Aug 19, 2024G700$0.00$02,810NoForm 4
Vahaviolos Sotirios J.Dec 23, 2019Aug 19, 2024G2,112$0.00$010,352,803NoForm 4
Glanton Richard HJun 20, 2024Jun 20, 2024S21,000$7.68Sale −$161,28042,117NoForm 4
Stamatakis Manuel N.Interim President and CEOMay 14, 2024May 16, 2024A125,000$0.00$0358,599NoForm 4
Vahaviolos Sotirios J.Mar 6, 2024May 3, 2024G2,049,140$0.00$03,890,699NoForm 4
Sotirios Vahaviolos January 2023 2-Year Grantor Retained Annuity TrustMar 6, 2024May 3, 2024G2,049,140$0.00$04,685,578NoForm 4
Keefe Michael CEVP, General CounselApr 3, 2024Apr 5, 2024F461$9.30$4,28785,232NoForm 4
Keefe Michael CEVP, General CounselApr 3, 2024Apr 5, 2024F789$9.31$7,34684,443NoForm 4
Lange Michael J.Senior EVPApr 3, 2024Apr 5, 2024F726$9.31$6,759341,112NoForm 4
Lange Michael J.Senior EVPApr 3, 2024Apr 5, 2024F597$9.30$5,552340,515NoForm 4
Smith John AnthonyExecutive Vice PresidentApr 3, 2024Apr 5, 2024F1,071$9.67$10,357100,447NoForm 4
Prajzner Edward JSr. EVP and CFOApr 3, 2024Apr 5, 2024F838$9.31$7,802101,022NoForm 4
Prajzner Edward JSr. EVP and CFOApr 3, 2024Apr 5, 2024F417$9.30$3,878100,605NoForm 4
Hammad Hanei WailEVP & Chief Transformation OffMar 26, 2024Apr 3, 2024A47,058$0.00$047,058NoForm 4
Stamatakis Manuel N.Interim President and CEONov 7, 2023Mar 27, 2024P15,000$6.00Purchase +$90,000233,599NoForm 4
Debenedictis NicholasMar 13, 2024Mar 15, 2024A6,279$0.00$0201,806NoForm 4
Forese James JMar 13, 2024Mar 15, 2024A6,279$0.00$0150,029NoForm 4
Glanton Richard HMar 13, 2024Mar 15, 2024A6,279$0.00$063,117NoForm 4
Lohmeier MichelleMar 13, 2024Mar 15, 2024A6,279$0.00$072,209NoForm 4
Pizzi Charles PMar 13, 2024Mar 15, 2024A6,279$0.00$048,616NoForm 4
Lange Michael J.Senior EVPMar 12, 2024Mar 14, 2024S5,000$8.53Sale −$42,650341,838NoForm 4
Smith John AnthonyExecutive Vice PresidentFeb 28, 2024Mar 4, 2024A7,000$0.00$0101,518NoForm 4
D'Alterio Gennaro A.EVP, Chief Commercial OfficerFeb 28, 2024Mar 4, 2024A8,000$0.00$018,000NoForm 4
Keefe Michael CEVP, General CounselFeb 28, 2024Mar 4, 2024A10,000$0.00$085,693NoForm 4
Lange Michael J.Senior EVPFeb 28, 2024Mar 4, 2024A4,500$0.00$0346,838NoForm 4
Prajzner Edward JSr. EVP and CFOFeb 28, 2024Mar 4, 2024A17,500$0.00$0101,860NoForm 4
Glanton Richard HDec 8, 2023Feb 9, 2024A33,870$0.00$056,838NoForm 4
Prajzner Edward JSr. EVP and CFOJan 2, 2024Jan 4, 2024F3,398$7.28$24,73784,360NoForm 4
Keefe Michael CEVP, General CounselJan 2, 2024Jan 4, 2024F3,990$7.28$29,04775,693NoForm 4
Lange Michael J.Senior EVPJan 2, 2024Jan 4, 2024F5,764$7.28$41,962342,338NoForm 4
Debenedictis NicholasDec 20, 2023Dec 20, 2023P3,000$7.05Purchase +$21,150195,527NoForm 4
Debenedictis NicholasDec 13, 2023Dec 13, 2023P2,000$6.60Purchase +$13,200192,527NoForm 4
Debenedictis NicholasDec 11, 2023Dec 13, 2023P100$6.50Purchase +$650190,527NoForm 4
Smith John AnthonyExecutive Vice PresidentNov 14, 2023Nov 15, 2023S10,018$6.29Sale −$63,01394,518NoForm 4
Debenedictis NicholasNov 9, 2023Nov 9, 2023P3,684$5.94Purchase +$21,883190,427NoForm 4
Debenedictis NicholasNov 8, 2023Nov 9, 2023P120$5.80Purchase +$696186,743NoForm 4
Stamatakis Manuel N.Interim President and CEOOct 11, 2023Oct 13, 2023A · derivative250,000$5.36$1,340,000250,000NoForm 4