M-tron Industries, Inc. MPTI
CIK 0001902314 · CUSIP 55380K109
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | GAMCO INVESTORS, INC. ET AL CIK 807249 · View history | $9.27M 174,260 shares | 0.09% | +32.76K(+23.2%)Added | SEC filing ↗ Feb 5, 2026 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $7.64M 143,581 shares | 0.00% | +16.99K(+13.4%)Added | SEC filing ↗ Jan 29, 2026 | ▾ |
| 03 | BlackRock, Inc. CIK 2012383 · View history | $7.20M 135,378 shares | 0.00% | +3.38K(+2.6%)Added | SEC filing ↗ Feb 12, 2026 | ▾ |
| 04 | Archon Capital Management LLC CIK 1398825 · View history | $6.29M 118,233 shares | 3.58% | 0(0.0%)Unchanged | SEC filing ↗ Feb 13, 2026 | ▾ |
| 05 | NEXT CENTURY GROWTH INVESTORS LLC CIK 1134007 · View history | $5.85M 109,884 shares | 0.41% | +22.83K(+26.2%)Added | SEC filing ↗ Feb 13, 2026 | ▾ |
| 06 | BARD ASSOCIATES INC CIK 1105907 · View history | $4.58M 86,129 shares | 1.18% | -908(-1.0%)Reduced | SEC filing ↗ Feb 13, 2026 | ▾ |
| 07 | HERALD INVESTMENT MANAGEMENT Ltd CIK 1512022 · View history | $3.56M 67,000 shares | 0.46% | +12.00K(+21.8%)Added | SEC filing ↗ Feb 13, 2026 | ▾ |
| 08 | Palisades Investment Partners, LLC CIK 1427373 · View history | $3.55M 66,751 shares | 1.34% | +4.39K(+7.0%)Added | SEC filing ↗ Jan 20, 2026 | ▾ |
| 09 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $3.22M 60,559 shares | 0.01% | +15.45K(+34.3%)Added | SEC filing ↗ Feb 12, 2026 | ▾ |
| 10 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $3.03M 56,854 shares | 0.00% | +1.11K(+2.0%)Added | SEC filing ↗ Feb 9, 2026 | ▾ |
| 11 | Aristides Capital LLC CIK 1595521 · Amended · View history | $2.88M 54,054 shares | 0.99% | +47.05K(+672.2%)Added | SEC filing ↗ Feb 26, 2026 | ▾ |
| 12 | Grandeur Peak Global Advisors, LLC CIK 1569137 · View history | $2.34M 44,061 shares | 0.32% | +44.06KNew | SEC filing ↗ Feb 13, 2026 | ▾ |
| 13 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $2.26M 42,448 shares | 0.00% | +9.00K(+26.9%)Added | SEC filing ↗ Feb 12, 2026 | ▾ |
| 14 | STATE STREET CORP CIK 93751 · View history | $1.90M 35,703 shares | 0.00% | +2.96K(+9.0%)Added | SEC filing ↗ Feb 13, 2026 | ▾ |
| 15 | ADVISORY RESEARCH INC CIK 902584 · View history | $1.89M 35,599 shares | 0.24% | +35.60KNew | SEC filing ↗ Feb 13, 2026 | ▾ |
| 16 | NEW YORK STATE COMMON RETIREMENT FUND CIK 810265 · View history | $1.68M 31,660 shares | 0.00% | +4.96K(+18.6%)Added | SEC filing ↗ Feb 12, 2026 | ▾ |
| 17 | NORTHERN TRUST CORP CIK 73124 · View history | $1.36M 25,626 shares | 0.00% | -315(-1.2%)Reduced | SEC filing ↗ Feb 17, 2026 | ▾ |
| 18 | Illumine Investment Management, LLC CIK 2052970 · View history | $1.31M 24,628 shares | 0.96% | +204(+0.8%)Added | SEC filing ↗ Feb 9, 2026 | ▾ |
| 19 | BNP PARIBAS FINANCIAL MARKETS CIK 1166588 · View history | $1.21M 22,724 shares | 0.00% | +18.55K(+445.1%)Added | SEC filing ↗ Feb 10, 2026 | ▾ |
| 20 | MCINTYRE FREEDMAN & FLYNN INVESTMENT ADVISERS INC CIK 1015877 · View history | $1.17M 22,000 shares | 0.73% | 0(0.0%)Unchanged | SEC filing ↗ Feb 12, 2026 | ▾ |
Showing 20 / 85 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 85 reporting institutions.
This page includes 20 of 85 reporting institutions. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 85 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
get_institutional_security_holders
{"cusip":"55380K109","quarter":"2025Q4","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.