Security key
60649T107
Mistras Group, Inc. - Common Stock, $0.01 par value (MG)
CUSIP: 60649T107
Q4 2025 13F Holders as of 31 Dec 2025
- Security type / class
- Equity / Common Stock, $0.01 par value
- Total 13F shares
- 17,581,773
- Total 13F value
- $222,419,769
- Share change
- -928,690
- Put/Call ratio
- 21%
- SEC-reported price per share
- $12.65
- Number of holders
- 122
- Value change
- -$9,633,918
- Number of buys
- 52
- Number of sells
- 56
- Shares outstanding
- 31,800,260
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
122
Top holders
10
MG full security history
Ownership snapshot
Full 13F holder table
Mistras Group, Inc. SEC filings
Mistras Group, Inc. company facts
Broader feeds
Ownership snapshot
Top reported holders of MG - Mistras Group, Inc. - Common Stock, $0.01 par value (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
DIMENSIONAL FUND ADVISORS LP
Disclosed value leader
Kristy Vahaviolos Kyriako...
Comparable rows
15/15
Latest evidence
30 Sep 2025
13F
13D/G
Lead comparable stake: 5.2%
13D/G row: DIMENSIONAL FUND ADVISORS LP
Showing 1-6 of 15 holder rows.
Quick read
DIMENSIONAL FUND ADVISORS LP leads the comparable SEC ownership view at 5.2%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens DIMENSIONAL FUND ADVISORS LP's linked filing trail.
Comparable ownership
Top 5
DIMENSIONAL FUND ADVISORS LP
5.2%
Kristy Vahaviolos Kyriakopoulos
5.1%
Mill Road Capital Management LLC
5.3%
ROYCE & ASSOCIATES LP
4.2%
VANGUARD GROUP INC
3.7%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP |
13F
13D/G
Company
|
5.2%
from 13D/G
|
$16,072,010
1,633,327 shares
|
— | 30 Sep 2025 |
| Kristy Vahaviolos Kyriakopoulos |
13D/G
Kristy Kyriakopoulos
|
5.1%
|
$25,354,654
1,617,006 shares
|
$0 | 08 Jul 2025 |
| Mill Road Capital Management LLC |
13F
Company
|
5.3%
|
$16,456,229
1,672,381 shares
|
— | 30 Sep 2025 |
| ROYCE & ASSOCIATES LP |
13F
Company
|
4.2%
|
$13,212,630
1,342,747 shares
|
— | 30 Sep 2025 |
| VANGUARD GROUP INC |
13F
Company
|
3.7%
|
$11,464,132
1,165,054 shares
|
— | 30 Sep 2025 |
| BlackRock, Inc. |
13F
Company
|
3.3%
|
$10,413,406
1,058,273 shares
|
— | 30 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
122
Shares
17,581,773
Rows available
122
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
109
Q4 2025 holders
122
Holder diff
13
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|