Mistras Group MG
$20.16 +$0.02 (+0.10%)
Market closed · Nov 6, 8:10 pm ET · Last extended-hours $20.16 0.00%
Open$20.15
Prev close$20.14
Day range$20.15 – $20.20
Volume309.1K
Market cap$642.44M
P/E (TTM)32.0
Dividend yield–
Ownership & positioning
Who holds it, who is betting against it, and where the big money is moving
Institutional ownership95.1%-0.14 pts vs. prior quarter
Institutions holding175+3 vs. prior quarter
Insider trades (recent)25 buys / 21 sellsNet buying
Short interest2.32% of floatDays to cover 2.2 · as of 15 Oct 2026
Short-sale volume share14.1%5-day average of daily volume
Short-sale volume as % of daily volume
Large-order net flow, last 20 sessions
Net of large-order buying minus selling, in USD. Over this window: −$5.17M (7 inflow days, 13 outflow days).
Net flow by order size, last 20 sessions
Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.
The five largest holders on file together own 49.7% of shares outstanding.
Largest holders
By investor type
Reported short interest has fallen from 3.81% to 2.32% of float over the last 6 biweekly reports (31 Jul 2026 to 15 Oct 2026).
Recent institutional activity
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| Natalia Shuman | Individual/Insider | 2026/Q3 | +123,780 | 0.4% |
| Hani Hammad | Individual/Insider | 2026/Q3 | +74,910 | 0.3% |
| Edward Prajzner | Individual/Insider | 2026/Q3 | +61,924 | 0.5% |
| Wasatch Advisors LP | Mutual Fund | 2026/Q3 | +392,289 | 1.2% |
| Aspasia Vahaviolos | Individual/Insider | 2026/Q3 | +365,951 | 6.8% |
| Natalia Shuman | Individual/Insider | 2026/Q3 | +123,780 | 0.4% |
| Nuveen Asset Management LLC | Insurance Company | 2026/Q3 | +75,833 | 0.2% |
| BlackRock | Mutual Fund | 2026/Q3 | +306,745 | 3.7% |
| First Eagle Investment Management, LLC | Mutual Fund | 2026/Q3 | +272,323 | 1.7% |
| Geode Capital Management, LLC | Mutual Fund | 2026/Q3 | +156,648 | 1.6% |
| Vanguard Capital Management, LLC | Mutual Fund | 2026/Q3 | +140,059 | 3.7% |
| Acadian Asset Management LLC | Mutual Fund | 2026/Q3 | +118,177 | 0.9% |
| Equitable Holdings, Inc. | Public Company | 2026/Q3 | +86,445 | 0.3% |
| Vanguard Portfolio Management, LLC | Mutual Fund | 2026/Q3 | +79,449 | 0.4% |
| Uniplan Investment Counsel, Inc. | Mutual Fund | 2026/Q3 | +77,889 | 0.2% |
Institutional buy/sell activity by reporting period, largest moves first.
Insider transactions
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 19 Sep 2026 | Gennaro D'Alterio | Executive Vice President | Sale to Issuer | -662 | $20.75 | 14,395 |
| 17 Sep 2026 | Eileen Coggins | General Counsel | Sale to Issuer | -1,636 | $19.66 | 6,122 |
| 9 Sep 2026 | Aspasia Vahaviolos | Other Acquisition | +387,093 | – | 2,160,790 | |
| 9 Sep 2026 | 2025 2-Year Irrevocable Grantor Retained Annuity Trust Of Aspasia F. Vahaviolos (Grat) | Other Disposition | -387,093 | – | – | |
| 7 Sep 2026 | Natalia Shuman | Chief Executive Officer | Sale to Issuer | -2,410 | $19.42 | 22,590 |
| 9 Jun 2026 | Aspasia Vahaviolos | Other Acquisition | +411,875 | – | 6,105,650 | |
| 9 Jun 2026 | 2025 2-Year Irrevocable Grantor Retained Annuity Trust Of Aspasia F. Vahaviolos (Grat) | Other Disposition | -411,875 | – | – | |
| 18 May 2026 | James Forese | Lead Independent Director | Other Acquisition | +6,862 | – | 177,043 |
| 18 May 2026 | Nicholas DeBenedictis | Independent Director | Other Acquisition | +6,862 | – | 273,820 |
| 18 May 2026 | Charles Pizzi | Independent Director | Other Acquisition | +6,862 | – | 73,480 |
| 18 May 2026 | Richard Glanton | Former Independent Director | Other Acquisition | +6,862 | – | 68,431 |
| 18 May 2026 | Michelle Lohmeier | Independent Director | Other Acquisition | +6,862 | – | 99,223 |
| 26 Apr 2026 | 2025 2-Year Irrevocable Grantor Retained Annuity Trust Of Aspasia F. Vahaviolos (Grat) | Other Disposition | -528,672 | – | – | |
| 16 Apr 2026 | Stephanie Foglia | Open Market Disposition | -4,000 | $18.00 | 6,331,281 | |
| 25 Mar 2026 | Hani Hammad | Chief Operating Officer | Sale to Issuer | -2,865 | $15.10 | 9,360 |
| 21 Mar 2026 | Edward Prajzner | Senior Executive VP & CFO | Sale to Issuer | -1,367 | $14.05 | 85,107 |
| 15 Mar 2026 | Edward Prajzner | Senior Executive VP & CFO | Sale to Issuer | -2,239 | $14.61 | 83,421 |
| 6 Mar 2026 | Edward Prajzner | Senior Executive VP & CFO | Sale to Issuer | -3,238 | $15.68 | 80,660 |
| 3 Mar 2026 | Manuel Stamatakis | Executive Chairperson | Sale to Issuer | -814 | $15.68 | 509,795 |
| 3 Mar 2026 | Gennaro D'Alterio | Executive Vice President | Sale to Issuer | -184 | $15.68 | 10,449 |
From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.
Short interest, by report
| Report date | Shares short | % of float | Days to cover |
|---|---|---|---|
| 15 Oct 2026 | 738,731 | 2.3% | 2.2 |
| 30 Sep 2026 | 938,098 | 2.9% | 1.3 |
| 15 Sep 2026 | 1,074,399 | 3.4% | 4.8 |
| 31 Aug 2026 | 1,097,996 | 3.4% | 4.4 |
| 14 Aug 2026 | 1,162,719 | 3.7% | 5.3 |
| 31 Jul 2026 | 1,210,654 | 3.8% | 7.8 |
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