Mistras Group, Inc. (MG) Insider Trading
Directors, officers and holders of more than 10% of MG report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 87 transactions on file: 3 with code P, 4 with code S and 43 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 20, 2026 | D'Alterio Gennaro A. | EVP, Chief Commercial Officer | F Tax Payment | 662 | $20.75 | $13,737 |
| Sep 18, 2026 | Coggins Eileen Mary | Chief Legal Officer | F Tax Payment | 1,636 | $19.66 | $32,164 |
| Sep 10, 2026 | Vahaviolos Aspasia Felice | 10% Owner | G Gift | 387,093 | Not measured | Not measured |
| Sep 10, 2026 | Foglia Stephanie Athena | 10% Owner | G Gift | 387,093 | Not measured | Not measured |
| Sep 8, 2026 | SHUMAN-FABBRI NATALIA | President and CEO | F Tax Payment | 2,410 | $19.42 | $46,802 |
| Jun 10, 2026 | Foglia Stephanie Athena | 10% Owner | G Gift | 411,875 | Not measured | Not measured |
| Jun 10, 2026 | Vahaviolos Aspasia Felice | 10% Owner | G Gift | 411,875 | Not measured | Not measured |
| May 19, 2026 | DEBENEDICTIS NICHOLAS | Director | A Award | 6,862 | Not measured | Not measured |
| May 19, 2026 | GLANTON RICHARD H | Director | A Award | 6,862 | Not measured | Not measured |
| May 19, 2026 | FORESE JAMES J | Director | A Award | 6,862 | Not measured | Not measured |
| May 19, 2026 | Lohmeier Michelle | Director | A Award | 6,862 | Not measured | Not measured |
| May 19, 2026 | PIZZI CHARLES P | Director | A Award | 6,862 | Not measured | Not measured |
| Apr 27, 2026 | Foglia Stephanie Athena | 10% Owner | G Gift | 528,672 | Not measured | Not measured |
| Apr 17, 2026 | Foglia Stephanie Athena | 10% Owner | S Sale | 1,000 | $18.00 | $18,000 |
| Mar 26, 2026 | Hammad Hanei Wail | EVP & Chief Operating Officer | F Tax Payment | 2,865 | $15.10 | $43,262 |
| Mar 22, 2026 | Prajzner Edward J | Sr. EVP and CFO | F Tax Payment | 1,367 | $14.05 | $19,206 |
| Mar 16, 2026 | Prajzner Edward J | Sr. EVP and CFO | F Tax Payment | 2,239 | $14.61 | $32,712 |
| Mar 7, 2026 | Prajzner Edward J | Sr. EVP and CFO | F Tax Payment | 2,540 | $14.82 | $37,643 |
| Mar 4, 2026 | Stamatakis Manuel N. | Executive Chairman | F Tax Payment | 814 | $15.68 | $12,764 |
| Mar 4, 2026 | Hammad Hanei Wail | EVP & Chief Operating Officer | F Tax Payment | 337 | $15.68 | $5,284 |
| Mar 4, 2026 | Prajzner Edward J | Sr. EVP and CFO | F Tax Payment | 698 | $15.68 | $10,945 |
| Mar 4, 2026 | D'Alterio Gennaro A. | EVP, Chief Commercial Officer | F Tax Payment | 184 | $15.68 | $2,885 |
| Mar 3, 2026 | Foglia Stephanie Athena | 10% Owner | S Sale | 1,000 | $15.50 | $15,500 |
| Feb 28, 2026 | D'Alterio Gennaro A. | EVP, Chief Commercial Officer | F Tax Payment | 862 | $15.28 | $13,171 |
| Feb 28, 2026 | Prajzner Edward J | Sr. EVP and CFO | F Tax Payment | 1,303 | $15.28 | $19,910 |
| Feb 28, 2026 | D'Alterio Gennaro A. | EVP, Chief Commercial Officer | F Tax Payment | 655 | $15.28 | $10,008 |
| Feb 25, 2026 | Stamatakis Manuel N. | Executive Chairman | A Award | 86,310 | Not measured | Not measured |
| Feb 25, 2026 | Prajzner Edward J | Sr. EVP and CFO | A Award | 37,202 | Not measured | Not measured |
| Feb 25, 2026 | Coggins Eileen Mary | Chief Legal Officer | A Award | 7,242 | Not measured | Not measured |
| Feb 25, 2026 | D'Alterio Gennaro A. | EVP, Chief Commercial Officer | A Award | 19,905 | Not measured | Not measured |
| Feb 25, 2026 | Hammad Hanei Wail | EVP & Chief Operating Officer | A Award | 29,762 | Not measured | Not measured |
| Feb 25, 2026 | SHUMAN-FABBRI NATALIA | President and CEO | A Award | 101,190 | Not measured | Not measured |
| Feb 3, 2026 | Foglia Stephanie Athena | 10% Owner | S Sale | 1,000 | $14.60 | $14,600 |
| Jan 5, 2026 | Prajzner Edward J | Sr. EVP and CFO | F Tax Payment | 2,699 | $12.65 | $34,142 |
| Jan 5, 2026 | Foglia Stephanie Athena | 10% Owner | S Sale | 1,000 | $13.60 | $13,600 |
| Jan 2, 2026 | Stamatakis Manuel N. | Executive Chairman | A Award | 40,000 | Not measured | Not measured |
| Dec 31, 2025 | Vahaviolos Aspasia Felice | 10% Owner | G Gift | 528,672 | Not measured | Not measured |
| Dec 31, 2025 | Vahaviolos Aspasia Felice | 10% Owner | G Gift | 5,251,358 | Not measured | Not measured |
| Dec 4, 2025 | PIZZI CHARLES P | Director | G Gift | 2,150 | Not measured | Not measured |
| Sep 24, 2025 | D'Alterio Gennaro A. | EVP, Chief Commercial Officer | F Tax Payment | 475 | $9.53 | $4,527 |
| Sep 15, 2025 | Coggins Eileen Mary | Chief Legal Officer | A Award | 25,000 | Not measured | Not measured |
| Sep 15, 2025 | Coggins Eileen Mary | Chief Legal Officer | A Award | 15,000 | Not measured | Not measured |
| Sep 15, 2025 | Coggins Eileen Mary | Chief Legal Officer | P Purchase | 15,000 | $9.55 | $143,250 |
| Sep 15, 2025 | Coggins Eileen Mary | Chief Legal Officer | P Purchase | 25,000 | $9.55 | $238,750 |
| Sep 8, 2025 | SHUMAN-FABBRI NATALIA | President and CEO | A Award | 35,000 | Not measured | Not measured |
| Sep 8, 2025 | SHUMAN-FABBRI NATALIA | President and CEO | A Award | 25,000 | Not measured | Not measured |
| Jul 2, 2025 | Sotirios Vahaviolos January 2023 2-Year Grantor Retained Annuity Trust | 10% Owner | G Gift | 4,685,578 | Not measured | Not measured |
| Jul 2, 2025 | Vahaviolos Aspasia Felice | 10% Owner | W Will/Inheritance | 2,217,087 | Not measured | Not measured |
| Jun 5, 2025 | Stamatakis Manuel N. | Executive Chairman | P Purchase | 10,000 | $7.71 | $77,100 |
| May 19, 2025 | DEBENEDICTIS NICHOLAS | Director | A Award | 14,447 | Not measured | Not measured |
The full Form 4 history is on the MG company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.