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MPTI

M-tron Industries, Inc.
$91.02 -9.73 (-9.66%) At close · Jul 2
Market Cap
$393.34M
Shares
4,321,443

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 96
Total Value: $137,182,021
Total Shares: 2,052,088

Institutional Ownership Trend

15 quarters

Superinvestors Holding MPTI

All superinvestors →
Mario Gabelli $11,257,540

Holder Concentration

Across 96 13F filers · Δ vs Dec 31, 2025
Top Holder
8.2%
Jun 2023 → Mar 2026 · range 8.2% – 45.0%
−2.5 pts
Top 5
30.8%
Jun 2023 → Mar 2026 · range 30.8% – 87.7%
−11.1 pts
Top 10
49.5%
Jun 2023 → Mar 2026 · range 49.5% – 98.6%
−13.2 pts
HHI
352
Jun 2023 → Mar 2026 · range 352 – 2,619
Broadly held−157

Quarterly Activity

vs Dec 31, 2025
New
21
Increased
29
Decreased
25
Sold Out
10
Unchanged
21
Holder count: +11
Institutional value: +58.6%
Shares held: +26.3%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega TWO SIGMA INVESTMENTS, LP +40,917 62,463
Large RENAISSANCE TECHNOLOGIES LLC +36,230 96,789
Large MARSHALL WACE, LLP +35,999 51,593
Small ADVISORY RESEARCH INC +14,944 50,543
Small Palisades Investment Partners, LLC +14,276 81,027

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Small Archon Capital Management LLC −40,000 78,233
Large OSAIC HOLDINGS, INC. −15,096 2,527
Small HERALD INVESTMENT MANAGEMENT Ltd −12,000 55,000
Micro Concorde Asset Management, LLC −10,023 9,963
Mega JPMORGAN CHASE & CO −7,379 1,123

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 116,768 $7,805,940
Large NOMURA HOLDINGS INC 72,516 $4,847,694
Small Congruence Capital, LLC 42,256 $2,824,812
Small Cable Car Capital, LP 40,000 $2,674,000
Small Potrero Capital Research LLC 31,801 $2,125,896

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 143,581 $7,641,379
Micro Warberg Asset Management LLC 5,258 $279,830
Large TWO SIGMA ADVISERS, LP 4,200 $223,524
Mid AlphaQuest LLC 559 $29,749
Small Solstein Capital, LLC 500 $26,610
Filter: New 21 Increased 29 Reduced 25 Sold out 10 Unchanged 21
Showing 96 of 96
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mid GAMCO INVESTORS, INC. ET AL $11,257,540 8.21% 168,400
Mega BlackRock, Inc. $9,475,850 6.91% 141,748
Mega VANGUARD CAPITAL MANAGEMENT LLC $7,805,940 5.69% 116,768
Mid NEXT CENTURY GROWTH INVESTORS LLC $7,234,507 5.27% 108,220
Large RENAISSANCE TECHNOLOGIES LLC $6,470,344 4.72% 96,789
Small BARD ASSOCIATES INC $5,716,878 4.17% 85,518
Small Palisades Investment Partners, LLC $5,416,654 3.95% 81,027
Small Archon Capital Management LLC $5,229,876 3.81% 78,233
Large NOMURA HOLDINGS INC $4,847,694 3.53% 72,516
Small Aristides Capital LLC $4,390,240 3.20% 65,673
Mega GEODE CAPITAL MANAGEMENT, LLC $4,273,787 3.12% 63,931
Mega TWO SIGMA INVESTMENTS, LP $4,175,651 3.04% 62,463
Small HERALD INVESTMENT MANAGEMENT Ltd $3,676,750 2.68% 55,000
Large MARSHALL WACE, LLP $3,448,991 2.51% 51,593
Small Grandeur Peak Global Advisors, LLC $3,399,188 2.48% 50,848
Small ADVISORY RESEARCH INC $3,378,798 2.46% 50,543
Mega DIMENSIONAL FUND ADVISORS LP $3,007,446 2.19% 44,988
Mega STATE STREET CORP $2,960,318 2.16% 44,283
Small Congruence Capital, LLC $2,824,812 2.06% 42,256
Small Cable Car Capital, LP $2,674,000 1.95% 40,000
Small Potrero Capital Research LLC $2,125,896 1.55% 31,801
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $2,116,471 1.54% 31,660
Mega NORTHERN TRUST CORP Bank $1,900,746 1.39% 28,433
Small Illumine Investment Management, LLC $1,610,617 1.17% 24,093
Mega CITADEL ADVISORS LLC $1,521,171 1.11% 22,755
Mega BNP PARIBAS ARBITRAGE, SA $1,499,311 1.09% 22,428
Large ExodusPoint Capital Management, LP $1,462,811 1.07% 21,882
Mega VANGUARD FIDUCIARY TRUST CO Bank $1,443,759 1.05% 21,597
Small MCINTYRE FREEDMAN & FLYNN INVESTMENT ADVISERS INC $1,437,275 1.05% 21,500
Mega UBS Group AG $1,424,974 1.04% 21,316
Mega AMERIPRISE FINANCIAL INC $1,345,756 0.98% 20,131
Large SEI INVESTMENTS CO $1,229,906 0.90% 18,398
Mega MORGAN STANLEY $1,144,403 0.83% 17,119
Mega JANE STREET GROUP, LLC $972,600 0.71% 14,549
Large Russell Investments Group, Ltd. $955,552 0.70% 14,294
Large Janney Montgomery Scott LLC $824,193 0.60% 12,329
Small Apis Capital Advisors, LLC $802,200 0.58% 12,000
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $795,916 0.58% 11,906
Mega Bank of New York Mellon Corp Bank $740,296 0.54% 11,074
Mid XTX Topco Ltd $710,682 0.52% 10,631
Mega Nuveen, LLC $673,647 0.49% 10,077
Micro Concorde Asset Management, LLC $666,026 0.49% 9,963
Mega FIRST TRUST ADVISORS LP $664,422 0.48% 9,939
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $578,787 0.42% 8,658
Mid ROYCE & ASSOCIATES LP $556,459 0.41% 8,324
Mega AMERICAN CENTURY COMPANIES INC $518,020 0.38% 7,749
Mega MILLENNIUM MANAGEMENT LLC $488,472 0.36% 7,307
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $463,537 0.34% 6,934
Large Marex Group plc $396,554 0.29% 5,932
Small CORSAIR CAPITAL MANAGEMENT, L.P. $383,384 0.28% 5,735
Large HRT FINANCIAL LP $381,111 0.28% 5,701
Mega D. E. Shaw & Co., Inc. $362,059 0.26% 5,416
Mega BANK OF AMERICA CORP /DE/ Bank $357,179 0.26% 5,343
Large LOS ANGELES CAPITAL MANAGEMENT LLC $342,606 0.25% 5,125
Mega GOLDMAN SACHS GROUP INC $339,999 0.25% 5,086
Mega CANADA PENSION PLAN INVESTMENT BOARD Pension $213,920 0.16% 3,200
Mega AQR CAPITAL MANAGEMENT LLC $208,169 0.15% 3,114
Mega RHUMBLINE ADVISERS $205,296 0.15% 3,071
Large OSAIC HOLDINGS, INC. $168,929 0.12% 2,527
Mega ROYAL BANK OF CANADA Bank $168,261 0.12% 2,517
Large ACADIAN ASSET MANAGEMENT LLC $147,738 0.11% 2,210
Mid UMB Bank, n.a. $142,591 0.10% 2,133
Mega Vanguard Global Advisers, LLC $134,836 0.10% 2,017
Mega DEUTSCHE BANK AG\ Bank $114,246 0.08% 1,709
Large MetLife Investment Management, LLC $106,358 0.08% 1,591
Mega WELLS FARGO & COMPANY/MN $86,235 0.06% 1,290
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $85,768 0.06% 1,283
Mega JPMORGAN CHASE & CO $75,071 0.05% 1,123
Small Truvestments Capital LLC $64,710 0.05% 968
Small CALDWELL SUTTER CAPITAL, INC. $48,399 0.04% 724
Large Police & Firemen's Retirement System of New Jersey Pension $45,925 0.03% 687
Mega BARCLAYS PLC $38,571 0.03% 577
Mid State of Alaska, Department of Revenue $33,625 0.02% 503
Mid Tower Research Capital LLC (TRC) $30,751 0.02% 460
Small BFSG, LLC $20,055 0.01% 300
Mid Ameritas Investment Partners, Inc. $16,779 0.01% 251
Mid Sound Income Strategies, LLC $16,712 0.01% 250
Mid IFP Advisors, Inc $15,709 0.01% 235
Mega Legal & General Group Plc $14,840 0.01% 222
Large CWM, LLC $14,105 0.01% 211
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $10,027 0.01% 150
Mega CITIGROUP INC $9,558 0.01% 143
Small MCF Advisors LLC $9,359 0.01% 140
Small Sunbelt Securities, Inc. Broker-Dealer $8,022 0.01% 120
Mega FMR LLC $6,083 0.00% 91
Micro WealthCollab, LLC $5,414 0.00% 81
Mid Farther Finance Advisors, LLC $4,679 0.00% 70
Mid GAMMA Investing LLC $4,478 0.00% 67
Mid SBI Securities Co., Ltd. Broker-Dealer $1,203 0.00% 18
Micro True Wealth Design, LLC $1,136 0.00% 17
Mid Sterling Capital Management LLC $1,069 0.00% 16
Mid Allworth Financial LP $601 0.00% 9
Small Essential Partners LLC $467 0.00% 7
Mid Advisory Services Network, LLC $133 0.00% 2
Mega PNC FINANCIAL SERVICES GROUP, INC. $66 0.00% 1
Mid EverSource Wealth Advisors, LLC $66 0.00% 1
Key facts CIK 1902314 CUSIP 55380K109 Visit website Investor relations

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