M-tron Industries, Inc. - MPTI
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| GAMCO INVESTORS, INC. ET AL | History | Reduced | 168,400 | 11,257 | 0.11% | 0.09% | 1 | -5,860 | -3.36% | Q1 2026 | May 14, 2026 |
| BlackRock, Inc. | History | Added to | 141,748 | 9,475 | 0.0% | 0.0% | 2 | +6,370 | 4.71% | Q1 2026 | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 116,768 | 7,805 | 0.0% | — | 3 | +116,768 | New | Q1 2026 | May 15, 2026 |
| VANGUARD GROUP INC | History | No change | 143,581 | 7,641 | 0.0% | 0.0% | 4 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| NEXT CENTURY GROWTH INVESTORS LLC | History | Reduced | 108,220 | 7,234 | 0.52% | 0.41% | 5 | -1,664 | -1.51% | Q1 2026 | May 14, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 96,789 | 6,470 | 0.01% | 0.0% | 6 | +36,230 | 59.83% | Q1 2026 | May 14, 2026 |
| BARD ASSOCIATES INC | History | Reduced | 85,518 | 5,716 | 1.43% | 1.18% | 7 | -611 | -0.71% | Q1 2026 | May 07, 2026 |
| Palisades Investment Partners, LLC | History | Added to | 81,027 | 5,416 | 2.12% | 1.34% | 8 | +14,276 | 21.39% | Q1 2026 | Apr 30, 2026 |
| Archon Capital Management LLC | History | Reduced | 78,233 | 5,229 | 2.95% | 3.58% | 9 | -40,000 | -33.83% | Q1 2026 | May 14, 2026 |
| NOMURA HOLDINGS INC | History | New | 72,516 | 4,847 | 0.01% | — | 10 | +72,516 | New | Q1 2026 | May 15, 2026 |
| Aristides Capital LLC | History | Added to | 65,673 | 4,390 | 0.95% | 0.51% | 11 | +11,619 | 21.5% | Q1 2026 | May 14, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 63,931 | 4,274 | 0.0% | 0.0% | 12 | +7,077 | 12.45% | Q1 2026 | May 15, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Added to | 62,463 | 4,175 | 0.0% | 0.0% | 13 | +40,917 | 189.91% | Q1 2026 | May 15, 2026 |
| HERALD INVESTMENT MANAGEMENT Ltd | History | Reduced | 55,000 | 3,685 | 0.51% | 0.46% | 14 | -12,000 | -17.91% | Q1 2026 | May 13, 2026 |
| MARSHALL WACE, LLP | History | Added to | 51,593 | 3,448 | 0.0% | 0.0% | 15 | +35,999 | 230.85% | Q1 2026 | May 14, 2026 |
| Grandeur Peak Global Advisors, LLC | History | Added to | 50,848 | 3,399 | 0.8% | 0.32% | 16 | +6,787 | 15.4% | Q1 2026 | May 15, 2026 |
| ADVISORY RESEARCH INC | History | Added to | 50,543 | 3,378 | 0.42% | 0.24% | 17 | +14,944 | 41.98% | Q1 2026 | May 14, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Added to | 44,988 | 3,007 | 0.0% | 0.0% | 18 | +2,540 | 5.98% | Q1 2026 | May 07, 2026 |
| STATE STREET CORP | History | Added to | 44,283 | 2,960 | 0.0% | 0.0% | 19 | +8,580 | 24.03% | Q1 2026 | May 15, 2026 |
| Congruence Capital, LLC | History | New | 42,256 | 2,824 | 0.95% | — | 20 | +42,256 | New | Q1 2026 | May 14, 2026 |
| Cable Car Capital, LP | History | New | 40,000 | 2,674 | 0.92% | — | 21 | +40,000 | New | Q1 2026 | May 15, 2026 |
| Potrero Capital Research LLC | History | New | 31,801 | 2,125 | 1.3% | — | 22 | +31,801 | New | Q1 2026 | May 15, 2026 |
| NEW YORK STATE COMMON RETIREMENT FUND | History | No change | 31,660 | 2,116 | 0.0% | 0.0% | 23 | 0 | 0.0% | Q1 2026 | May 06, 2026 |
| NORTHERN TRUST CORP | History | Added to | 28,433 | 1,900 | 0.0% | 0.0% | 24 | +2,807 | 10.95% | Q1 2026 | May 14, 2026 |
| Illumine Investment Management, LLC | History | Reduced | 24,093 | 1,610 | 1.24% | 0.95% | 25 | -535 | -2.17% | Q1 2026 | May 04, 2026 |
| CITADEL ADVISORS LLC | History | Added to | 22,755 | 1,521 | 0.0% | 0.0% | 26 | +10,216 | 81.47% | Q1 2026 | May 15, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Reduced | 22,428 | 1,499 | 0.0% | 0.0% | 27 | -296 | -1.3% | Q1 2026 | May 12, 2026 |
| ExodusPoint Capital Management, LP | History | New | 21,882 | 1,462 | 0.01% | — | 28 | +21,882 | New | Q1 2026 | May 14, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 21,597 | 1,443 | 0.0% | — | 29 | +21,597 | New | Q1 2026 | May 08, 2026 |
| MCINTYRE FREEDMAN & FLYNN INVESTMENT ADVISERS INC | History | Reduced | 21,500 | 1,437 | 0.81% | 0.73% | 30 | -500 | -2.27% | Q1 2026 | May 13, 2026 |
| UBS Group AG | History | Added to | 21,316 | 1,424 | 0.0% | 0.0% | 31 | +11,619 | 119.82% | Q1 2026 | May 05, 2026 |
| AMERIPRISE FINANCIAL INC | History | Reduced | 20,131 | 1,345 | 0.0% | 0.0% | 32 | -245 | -1.2% | Q1 2026 | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | History | New | 19,807 | 1,324 | 0.0% | — | 33 | +19,807 | New | Q1 2026 | May 08, 2026 |
| SEI INVESTMENTS CO | History | New | 18,398 | 1,229 | 0.0% | — | 34 | +18,398 | New | Q1 2026 | May 13, 2026 |
| MORGAN STANLEY | History | Reduced | 17,119 | 1,144 | 0.0% | 0.0% | 35 | -2,109 | -10.97% | Q1 2026 | May 15, 2026 |
| JANE STREET GROUP, LLC | History | Added to | 14,549 | 972 | 0.0% | 0.0% | 36 | +10,051 | 223.45% | Q1 2026 | May 12, 2026 |
| Russell Investments Group, Ltd. | History | Added to | 14,294 | 955 | 0.0% | 0.0% | 37 | +14,082 | 6642.45% | Q1 2026 | May 08, 2026 |
| Janney Montgomery Scott LLC | History | Reduced | 12,329 | 824 | 0.0% | 0.0% | 38 | -450 | -3.52% | Q1 2026 | Apr 22, 2026 |
| APIS CAPITAL ADVISORS, LLC | History | New | 12,000 | 802 | 0.12% | — | 39 | +12,000 | New | Q1 2026 | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | New | 11,906 | 795 | 0.0% | — | 40 | +11,906 | New | Q1 2026 | May 15, 2026 |
| Bank of New York Mellon Corp | History | Added to | 11,074 | 740 | 0.0% | 0.0% | 41 | +509 | 4.82% | Q1 2026 | May 05, 2026 |
| XTX Topco Ltd | History | New | 10,631 | 710 | 0.01% | — | 42 | +10,631 | New | Q1 2026 | May 15, 2026 |
| Nuveen, LLC | History | New | 10,077 | 673 | 0.0% | — | 43 | +10,077 | New | Q1 2026 | Apr 30, 2026 |
| Concorde Asset Management, LLC | History | Reduced | 9,963 | 666 | 0.33% | 0.43% | 44 | -10,023 | -50.15% | Q1 2026 | Jun 01, 2026 |
| FIRST TRUST ADVISORS LP | History | Added to | 9,939 | 664 | 0.0% | 0.0% | 45 | +1,695 | 20.56% | Q1 2026 | May 13, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | Reduced | 8,658 | 578 | 0.0% | 0.0% | 46 | -110 | -1.25% | Q1 2026 | May 15, 2026 |
| ROYCE & ASSOCIATES LP | History | New | 8,324 | 556 | 0.01% | — | 47 | +8,324 | New | Q1 2026 | May 12, 2026 |
| AMERICAN CENTURY COMPANIES INC | History | Reduced | 7,749 | 518 | 0.0% | 0.0% | 48 | -94 | -1.2% | Q1 2026 | May 15, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Added to | 7,307 | 488 | 0.0% | 0.0% | 49 | +2,862 | 64.39% | Q1 2026 | May 15, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | No change | 6,934 | 463 | 0.01% | 0.01% | 50 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Marex Group plc | History | New | 5,932 | 396 | 0.0% | — | 51 | +5,932 | New | Q1 2026 | May 13, 2026 |
| CORSAIR CAPITAL MANAGEMENT, L.P. | History | No change | 5,735 | 383 | 0.06% | 0.05% | 52 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| HRT FINANCIAL LP | History | New | 5,701 | 381 | 0.0% | — | 53 | +5,701 | New | Q1 2026 | May 14, 2026 |
| D. E. Shaw & Co., Inc. | History | New | 5,416 | 362 | 0.0% | — | 54 | +5,416 | New | Q1 2026 | May 15, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Added to | 5,343 | 357 | 0.0% | 0.0% | 55 | +1,644 | 44.44% | Q1 2026 | May 15, 2026 |
| LOS ANGELES CAPITAL MANAGEMENT LLC | History | Added to | 5,125 | 342 | 0.0% | 0.0% | 56 | +3,520 | 219.31% | Q1 2026 | May 08, 2026 |
| GOLDMAN SACHS GROUP INC | History | Reduced | 5,086 | 339 | 0.0% | 0.0% | 57 | -167 | -3.18% | Q1 2026 | May 15, 2026 |
| TWO SIGMA ADVISERS, LP | History | No change | 4,200 | 223 | 0.0% | 0.0% | 58 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| CANADA PENSION PLAN INVESTMENT BOARD | History | No change | 3,200 | 213 | 0.0% | 0.0% | 59 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| AQR CAPITAL MANAGEMENT LLC | History | Reduced | 3,114 | 208 | 0.0% | 0.0% | 60 | -1,994 | -39.04% | Q1 2026 | May 15, 2026 |
| RHUMBLINE ADVISERS | History | Added to | 3,071 | 205 | 0.0% | 0.0% | 61 | +36 | 1.19% | Q1 2026 | May 12, 2026 |
| OSAIC HOLDINGS, INC. | History | Reduced | 2,527 | 168 | 0.0% | 0.0% | 63 | -15,096 | -85.66% | Q1 2026 | May 15, 2026 |
| ROYAL BANK OF CANADA | History | Reduced | 2,517 | 168 | 0.0% | 0.0% | 62 | -358 | -12.45% | Q1 2026 | May 15, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | New | 2,210 | 147 | 0.0% | — | 64 | +2,210 | New | Q1 2026 | May 13, 2026 |
| UMB Bank, n.a. | History | No change | 2,133 | 142 | 0.0% | 0.0% | 65 | 0 | 0.0% | Q1 2026 | May 11, 2026 |
| Vanguard Global Advisers, LLC | History | New | 2,017 | 134 | 0.0% | — | 66 | +2,017 | New | Q1 2026 | May 08, 2026 |
| DEUTSCHE BANK AG\ | History | No change | 1,709 | 114 | 0.0% | 0.0% | 67 | 0 | 0.0% | Q1 2026 | May 06, 2026 |
| MetLife Investment Management, LLC | History | New | 1,591 | 106 | 0.0% | — | 68 | +1,591 | New | Q1 2026 | May 14, 2026 |
| WELLS FARGO & COMPANY/MN | History | Reduced | 1,290 | 86 | 0.0% | 0.0% | 69 | -1,557 | -54.69% | Q1 2026 | May 11, 2026 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | History | Added to | 1,283 | 85 | 0.0% | 0.0% | 70 | +156 | 13.84% | Q1 2026 | May 15, 2026 |
| JPMORGAN CHASE & CO | History | Reduced | 1,123 | 74 | 0.0% | 0.0% | 71 | -7,379 | -86.79% | Q1 2026 | May 13, 2026 |
| Truvestments Capital LLC | History | Reduced | 968 | 64 | 0.01% | 0.01% | 72 | -213 | -18.04% | Q1 2026 | May 13, 2026 |
| CALDWELL SUTTER CAPITAL, INC. | History | No change | 724 | 48 | 0.02% | 0.02% | 73 | 0 | 0.0% | Q1 2026 | May 05, 2026 |
| Police & Firemen's Retirement System of New Jersey | History | No change | 687 | 45 | 0.0% | 0.0% | 74 | 0 | 0.0% | Q1 2026 | Apr 29, 2026 |
| BARCLAYS PLC | History | Reduced | 577 | 38 | 0.0% | 0.0% | 75 | -3,253 | -84.93% | Q1 2026 | May 14, 2026 |
| State of Alaska, Department of Revenue | History | No change | 503 | 33 | 0.0% | 0.0% | 76 | 0 | 0.0% | Q1 2026 | Apr 20, 2026 |
| Tower Research Capital LLC (TRC) | History | Added to | 460 | 30 | 0.0% | 0.0% | 77 | +243 | 111.98% | Q1 2026 | May 15, 2026 |
| AlphaQuest LLC | History | No change | 559 | 29 | 0.0% | 0.0% | 78 | 0 | 0.0% | Q4 2025 | Feb 09, 2026 |
| BFSG, LLC | History | No change | 300 | 20 | 0.0% | 0.0% | 79 | 0 | 0.0% | Q1 2026 | Apr 28, 2026 |
| Sound Income Strategies, LLC | History | New | 250 | 18 | 0.0% | — | 80 | +250 | New | Q1 2026 | Apr 27, 2026 |
| Ameritas Investment Partners, Inc. | History | No change | 251 | 16 | 0.0% | 0.0% | 81 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| IFP Advisors, Inc | History | Added to | 235 | 15 | 0.0% | 0.0% | 82 | +14 | 6.33% | Q1 2026 | Apr 13, 2026 |
| Legal & General Group Plc | History | Reduced | 222 | 14 | 0.0% | 0.0% | 83 | -31 | -12.25% | Q1 2026 | May 08, 2026 |
| CWM, LLC | History | Added to | 211 | 14 | 0.0% | 0.0% | 84 | +3 | 1.44% | Q1 2026 | May 14, 2026 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | Reduced | 150 | 10 | 0.0% | 0.0% | 85 | -1 | -0.66% | Q1 2026 | May 15, 2026 |
| CITIGROUP INC | History | Added to | 143 | 9 | 0.0% | 0.0% | 86 | +76 | 113.43% | Q1 2026 | May 11, 2026 |
| MCF Advisors LLC | History | No change | 140 | 9 | 0.0% | 0.0% | 87 | 0 | 0.0% | Q1 2026 | May 11, 2026 |
| Sunbelt Securities, Inc. | History | No change | 120 | 8 | 0.0% | 0.0% | 88 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| FMR LLC | History | Added to | 91 | 6 | 0.0% | 0.0% | 89 | +14 | 18.18% | Q1 2026 | May 15, 2026 |
| Farther Finance Advisors, LLC | History | No change | 70 | 5 | 0.0% | 0.0% | 90 | 0 | 0.0% | Q1 2026 | Apr 07, 2026 |
| WealthCollab, LLC | History | No change | 81 | 5 | 0.0% | 0.0% | 91 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| GAMMA Investing LLC | History | Added to | 67 | 4 | 0.0% | 0.0% | 92 | +32 | 91.43% | Q1 2026 | Apr 06, 2026 |
| SBI Securities Co., Ltd. | History | Reduced | 18 | 1 | 0.0% | 0.0% | 94 | -1 | -5.26% | Q1 2026 | Apr 27, 2026 |
| Sterling Capital Management LLC | History | No change | 16 | 1 | 0.0% | — | 93 | 0 | 0.0% | Q1 2026 | Apr 22, 2026 |
| True Wealth Design, LLC | History | No change | 17 | 1 | 0.0% | — | 95 | 0 | 0.0% | Q1 2026 | Apr 13, 2026 |
| Warberg Asset Management LLC | History | Closed out | 0 | 0 | — | 0.03% | — | -5,258 | -100.0% | Q1 2026 | May 07, 2026 |
| Solstein Capital, LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -500 | -100.0% | Q1 2026 | May 14, 2026 |
| Quarry LP | History | Closed out | 0 | 0 | — | 0.0% | — | -257 | -100.0% | Q1 2026 | May 15, 2026 |
| AMALGAMATED BANK | History | Closed out | 0 | 0 | — | 0.0% | — | -77 | -100.0% | Q1 2026 | May 08, 2026 |
| Arax Advisory Partners | History | Closed out | 0 | 0 | — | 0.0% | — | -50 | -100.0% | Q1 2026 | May 13, 2026 |
| Founders Capital Management | History | Closed out | 0 | 0 | — | — | — | -5 | -100.0% | Q1 2026 | Apr 21, 2026 |
| Advisory Services Network, LLC | History | New | 2 | 0 | — | — | — | +2 | New | Q1 2026 | May 15, 2026 |
| Clearstead Advisors, LLC | History | Closed out | 0 | 0 | — | — | — | -1 | -100.0% | Q1 2026 | May 06, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 08, 2026 |
| Allworth Financial LP | History | No change | 9 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| EverSource Wealth Advisors, LLC | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Essential Partners LLC | History | No change | 7 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 21, 2026 |