Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 10-Q filed 2026-08-12, as of 2026-08-05)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | MTEX · NASDAQ | 1,929,670 | 151,816 | 7.9% | 16 | 563771203 |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (16 of 16 · 563771203)
change vs 2026-03-31| # | Filer | Shares | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 52,163 | 2.70% | $272K | — |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 41,528 | 2.15% | $216K | -8,089 (-16.3%) |
| 3 | RENAISSANCE TECHNOLOGIES LLC | 30,078 | 1.56% | $157K | -800 (-2.6%) |
| 4 | IFG Advisory, LLC | 19,090 | 0.99% | $99K | NEW |
| 5 | ACADIAN ASSET MANAGEMENT LLC | 4,690 | 0.24% | $24K | -3,051 (-39.4%) |
| 6 | VANGUARD FIDUCIARY TRUST CO | 2,679 | 0.14% | $14K | — |
| 7 | Tower Research Capital LLC (TRC) | 727 | 0.04% | $4K | +255 (+54.0%) |
| 8 | ROYAL BANK OF CANADA | 316 | 0.02% | $2K | +236 (+295.0%) |
| 9 | Vanguard Global Advisers, LLC | 250 | 0.01% | $1K | — |
| 10 | WELLS FARGO & COMPANY/MN | 201 | 0.01% | $1K | +200 (+20000.0%) |
| 11 | UBS Group AG | 48 | 0.00% | $250 | -437 (-90.1%) |
| 12 | NATIONAL BANK OF CANADA /FI/ | 30 | 0.00% | $150 | — |
| 13 | Arax Advisory Partners | 12 | 0.00% | $63 | — |
| 14 | MORGAN STANLEY | 2 | 0.00% | $15 | — |
| 15 | SBI Securities Co., Ltd. | 1 | 0.00% | $5 | — |
| 16 | CITIGROUP INC | 1 | 0.00% | $5 | NEW |
Exited since 2026-03-31 (4 filers; largest 4 shown)
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | −28,954 |
| DIMENSIONAL FUND ADVISORS LP | −11,925 |
| JONES FINANCIAL COMPANIES LLLP | −150 |
| Advisory Services Network, LLC | −30 |
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
| Reporting person | Form | Filed | Event | Shares | % of class |
|---|---|---|---|---|---|
| LACORE TERRY | SCHEDULE 13G/A | 2026-08-19 | 2026-06-30 | 159,585 | 8.3% |
| TOTH ROBERT | SCHEDULE 13D | 2026-04-24 | 2026-01-02 | 99,254 | 5.1% |
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.