Stamatakis Manuel N.

Executive Chairman at Mistras Group, Inc. · on record since Oct 13, 2023
Director at Mistras Group, Inc. · on record since Oct 9, 2009

Insider trading activity of Stamatakis Manuel N.

Transactions on record: 62; since Oct 9, 2009

Open-market buys: 18; $2M

Open-market sells: 1; $217.1K

Companies traded: 1; last filing Mar 10, 2026

Figures computed from official regulatory filings — .

Companies where Stamatakis Manuel N. has traded

Mistras Group, Inc.62 tx · $2.3M · Mar 10, 2026

Track record of Stamatakis Manuel N.

Statistical track record

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Open-market buys: 18

Last buy: Jun 5, 2025

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Transaction history of Stamatakis Manuel N.

Co-insiders of Stamatakis Manuel N.

2025 Irrevocable Two-Year Grantor Retained Annuity Trust of Aspasia F. VahaviolosMistras Group, Inc.
Bertolotti DennisMistras Group, Inc.
Burgess ElizabethMistras Group, Inc.
Carlos Mark F.Mistras Group, Inc.
Coggins Eileen MaryMistras Group, Inc.
Cole Phillip T.Mistras Group, Inc.
D'Alterio Gennaro A.Mistras Group, Inc.
DEBENEDICTIS NICHOLASMistras Group, Inc.
DICKINSON DANIEL MMistras Group, Inc.
Foglia Stephanie AthenaMistras Group, Inc.

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Mistras Group, Inc.Listing on record	Mar 10, 2026	Other	-814	15.68 USD	$12.8K		SEC
Mistras Group, Inc.Listing on record	Mar 6, 2026	Award	86,310	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Jan 9, 2026	Award	40,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Jan 5, 2026	Award	40,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Jun 6, 2025	Buy	10,000	7.71 USD	$77.1K	conv 33	SEC
Mistras Group, Inc.Listing on record	Mar 20, 2025	Buy	10,000	9.95 USD	$99.5K	conv 28First in 12mo	SEC
Mistras Group, Inc.Listing on record	Mar 6, 2025	Award	5,700	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Jan 7, 2025	AwardD (derivative)	375,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	May 16, 2024	Award	125,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Mar 27, 2024	Buy	15,000	6.00 USD	$90K	conv 30First in 12mo	SEC
Mistras Group, Inc.Listing on record	Oct 13, 2023	AwardD (derivative)	250,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Aug 11, 2023	Award	10,223	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Mar 17, 2023	Award	9,666	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Aug 19, 2022	Award	7,111	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Mar 18, 2022	Award	6,870	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Aug 19, 2021	Buy	5,000	9.62 USD	$48.1K	conv 17	SEC
Mistras Group, Inc.Listing on record	Aug 10, 2021	Award	4,357	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	May 12, 2021	Buy	15,000	9.98 USD	$149.7K	conv 19	SEC
Mistras Group, Inc.Listing on record	Mar 24, 2021	Award	4,110	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Dec 21, 2020	Buy	20,000	7.35 USD	$147K	conv 20	SEC
Mistras Group, Inc.Listing on record	Nov 17, 2020	Sell	-47,721	4.55 USD	$217.1K		SEC
Mistras Group, Inc.Listing on record	Aug 25, 2020	Award	8,753	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Apr 1, 2020	Buy	50,000	4.67 USD	$233.5K	conv 67ClusterUnusual size	SEC
Mistras Group, Inc.Listing on record	Apr 1, 2020	Award	2,512	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Nov 12, 2019	Buy	5,000	14.60 USD	$73K	conv 20	SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Mistras Group, Inc.Listing on record	Mar 10, 2026	Other	-814	15.68 USD	$12.8K		SEC
Mistras Group, Inc.Listing on record	Mar 6, 2026	Award	86,310	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Jan 9, 2026	Award	40,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Jan 5, 2026	Award	40,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Jun 6, 2025	Buy	10,000	7.71 USD	$77.1K	conv 33	SEC
Mistras Group, Inc.Listing on record	Mar 20, 2025	Buy	10,000	9.95 USD	$99.5K	conv 28First in 12mo	SEC
Mistras Group, Inc.Listing on record	Mar 6, 2025	Award	5,700	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Jan 7, 2025	AwardD (derivative)	375,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	May 16, 2024	Award	125,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Mar 27, 2024	Buy	15,000	6.00 USD	$90K	conv 30First in 12mo	SEC
Mistras Group, Inc.Listing on record	Oct 13, 2023	AwardD (derivative)	250,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Aug 11, 2023	Award	10,223	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Mar 17, 2023	Award	9,666	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Aug 19, 2022	Award	7,111	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Mar 18, 2022	Award	6,870	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Aug 19, 2021	Buy	5,000	9.62 USD	$48.1K	conv 17	SEC
Mistras Group, Inc.Listing on record	Aug 10, 2021	Award	4,357	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	May 12, 2021	Buy	15,000	9.98 USD	$149.7K	conv 19	SEC
Mistras Group, Inc.Listing on record	Mar 24, 2021	Award	4,110	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Dec 21, 2020	Buy	20,000	7.35 USD	$147K	conv 20	SEC
Mistras Group, Inc.Listing on record	Nov 17, 2020	Sell	-47,721	4.55 USD	$217.1K		SEC
Mistras Group, Inc.Listing on record	Aug 25, 2020	Award	8,753	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Apr 1, 2020	Buy	50,000	4.67 USD	$233.5K	conv 67ClusterUnusual size	SEC
Mistras Group, Inc.Listing on record	Apr 1, 2020	Award	2,512	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mistras Group, Inc.Listing on record	Nov 12, 2019	Buy	5,000	14.60 USD	$73K	conv 20	SEC