Who Owns M-TRON INDS INC (MPTI)? -- Institutional Holders (2026-06-30)
127 institutions reported holding $289.4M of M-TRON INDS INC (MPTI) in SEC 13F filings for 2026-06-30. Largest institutional holders: T. Rowe Price Investment Management, Inc. ($25.3M), BlackRock, Inc. ($25.1M), VANGUARD GROUP INC ($23.2M), GAMCO INVESTORS, INC. ET AL ($20.0M), ROYCE & ASSOCIATES LP ($15.5M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | T. Rowe Price Investment Management, Inc. | $25.3M | 255,506 | New |
| 2 | BlackRock, Inc. | $25.1M | 252,972 | Added |
| 3 | VANGUARD GROUP INC | $23.2M | 233,749 | Added |
| 4 | GAMCO INVESTORS, INC. ET AL | $20.0M | 201,280 | Added |
| 5 | ROYCE & ASSOCIATES LP | $15.5M | 156,595 | Added |
| 6 | TWO SIGMA INVESTMENTS, LP | $13.1M | 132,465 | Added |
| 7 | NEXT CENTURY GROWTH INVESTORS LLC | $12.3M | 124,173 | Added |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $10.0M | 100,646 | Added |
| 9 | RENAISSANCE TECHNOLOGIES LLC | $9.5M | 96,005 | Trimmed |
| 10 | STATE STREET CORP | $8.2M | 82,493 | Added |
| 11 | Palisades Investment Partners, LLC | $8.2M | 82,296 | Added |
| 12 | CONGRUENCE CAPITAL, LLC | $6.6M | 66,701 | Added |
| 13 | ADVISORY RESEARCH INC | $5.9M | 59,011 | Added |
| 14 | Herald Investment Management Ltd | $5.8M | 58,500 | Added |
| 15 | Grandeur Peak Global Advisors, LLC | $5.6M | 56,681 | Added |
| 16 | D. E. Shaw & Co., Inc. | $4.8M | 48,493 | Added |
| 17 | DIMENSIONAL FUND ADVISORS LP | $4.7M | 47,681 | Added |
| 18 | HUNTER ASSOCIATES INVESTMENT MANAGEMENT LLC | $4.6M | 46,804 | New |
| 19 | BARD ASSOCIATES INC | $4.4M | 44,578 | Trimmed |
| 20 | Aristides Capital LLC | $4.1M | 41,209 | Trimmed |
| 21 | NORTHERN TRUST CORP | $3.9M | 39,832 | Added |
| 22 | Potrero Capital Research LLC | $3.8M | 38,161 | Added |
| 23 | NEW YORK STATE COMMON RETIREMENT FUND | $3.1M | 31,660 | Hold |
| 24 | BNP PARIBAS FINANCIAL MARKETS | $3.0M | 30,583 | Added |
| 25 | MCINTYRE FREEDMAN & FLYNN INVESTMENT ADVISERS INC | $2.6M | 25,800 | Added |
Source: SEC Form 13F filings · as of 2026-06-30