MPTI Institutional Ownership & Shareholders
M-TRON INDUSTRIES INC (MPTI) is currently held by 117 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $285.61M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
T. Rowe Price Investment Management, Inc. is currently the largest disclosed institutional shareholder of MPTI tracked by InsiderSet, reporting ownership valued at approximately $25.33M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $16.91M, representing an estimated loss of -33.24% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 55% of the total disclosed MPTI value among the investors covered in this analysis. Major shareholders include T. Rowe Price Investment Management, Inc., Blackrock, Inc., Gamco Investors, Inc. Et Al, and several other long-term asset managers with concentrated positions in M-TRON INDUSTRIES INC (MPTI).
This page ranks the largest institutional MPTI shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
117
Total Reported Value
$285.61M
Largest Holder
T. Rowe Price Investment Management, Inc.
Largest Position
$25.33M
Insider Transactions (90d)
1
Latest Filing Quarter
Q2 2026
New Institutional Positions
142
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 0.02% | 255,506 | $25,334,000 | $16,911,942 | -$8,422,058 | -33.24% | |
| Blackrock, Inc. | 0.00% | 252,972 | $25,082,174 | $16,744,217 | -$8,337,957 | -33.24% | |
| Gamco Investors, Inc. Et Al | 0.18% | 201,280 | $19,956,912 | $13,322,723 | -$6,634,189 | -33.24% | |
| Vanguard Capital Management Llc | 0.00% | 173,148 | $17,167,624 | $11,460,666 | -$5,706,958 | -33.24% | |
| Royce & Associates Lp | 0.13% | 156,595 | $15,526,394 | $10,365,023 | -$5,161,371 | -33.24% | |
| Two Sigma Investments, Lp | 0.01% | 132,465 | $13,133,905 | $8,767,858 | -$4,366,047 | -33.24% | |
| Next Century Growth Investors Llc | 0.65% | 124,173 | $12,311,752 | $8,219,011 | -$4,092,741 | -33.24% | |
| Geode Capital Management, Llc | 0.00% | 100,646 | $9,980,957 | $6,661,759 | -$3,319,198 | -33.26% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 96,005 | $9,518,896 | $6,354,571 | -$3,164,325 | -33.24% |
| Wasatch Advisors Lp | 0.06% | 107,671 | $8,426,332 | $7,126,743 | -$1,299,589 | -15.42% | |
| State Street Corp | 0.00% | 82,493 | $8,179,181 | $5,460,212 | -$2,718,969 | -33.24% | |
| Palisades Investment Partners, Llc | 2.32% | 82,296 | $8,159,648 | $5,447,172 | -$2,712,476 | -33.24% | |
| Congruence Capital, Llc | 1.73% | 66,701 | $6,613,404 | $4,414,939 | -$2,198,465 | -33.24% | |
| Advisory Research Inc | 0.58% | 59,011 | $5,850,941 | $3,905,938 | -$1,945,003 | -33.24% | |
| Grandeur Peak Global Advisors, Llc | 1.30% | 56,681 | $5,619,921 | $3,751,715 | -$1,868,206 | -33.24% | |
| D. E. Shaw & Co., Inc. | 0.00% | 48,493 | $4,808,081 | $3,209,752 | -$1,598,329 | -33.24% | |
| Dimensional Fund Advisors Lp | 0.00% | 47,681 | $4,727,529 | $3,156,005 | -$1,571,524 | -33.24% | |
| Bard Associates Inc | 0.98% | 44,578 | $4,419,909 | $2,950,618 | -$1,469,291 | -33.24% | |
| Aristides Capital Llc | 1.04% | 41,209 | $4,085,872 | $2,727,624 | -$1,358,248 | -33.24% | |
| Northern Trust Corp | 0.00% | 39,832 | $3,949,343 | $2,636,480 | -$1,312,863 | -33.24% | |
| Potrero Capital Research Llc | 2.32% | 38,161 | $3,783,663 | $2,525,877 | -$1,257,786 | -33.24% | |
| New York State Common Retirement Fund | 0.00% | 31,660 | $3,139,089 | $2,095,575 | -$1,043,514 | -33.24% | |
| Vanguard Portfolio Management Llc | 0.00% | 30,954 | $3,069,089 | $2,048,845 | -$1,020,244 | -33.24% | |
| Bnp Paribas Financial Markets | 0.00% | 30,583 | $3,032,304 | $2,024,289 | -$1,008,015 | -33.24% | |
| Vanguard Fiduciary Trust Co | 0.00% | 27,180 | $2,694,897 | $1,799,044 | -$895,853 | -33.24% | |
| Mcintyre Freedman & Flynn Investment Advisers Inc | 1.53% | 25,800 | $2,558,070 | $1,707,702 | -$850,368 | -33.24% | |
| Verition Fund Management Llc | 0.02% | 25,000 | $2,478,750 | $1,654,750 | -$824,000 | -33.24% | |
| Ubs Group Ag | 0.00% | 24,493 | $2,428,481 | $1,621,192 | -$807,289 | -33.24% | |
| Morgan Stanley | 0.00% | 21,358 | $2,117,646 | $1,413,686 | -$703,960 | -33.24% | |
| Invesco Ltd. | 0.00% | 18,958 | $1,879,686 | $1,254,830 | -$624,856 | -33.24% | |
| Goldman Sachs Group Inc | 0.00% | 18,769 | $1,860,946 | $1,242,320 | -$618,626 | -33.24% | |
| Illumine Investment Management, Llc | 1.24% | 0 | $1,788,006 | — | — | — | |
| Acadian Asset Management Llc | 0.00% | 17,258 | $1,709,000 | $1,142,307 | -$566,693 | -33.16% | |
| Bank Of New York Mellon Corp | 0.00% | 17,143 | $1,699,762 | $1,134,695 | -$565,067 | -33.24% | |
| Ameriprise Financial Inc | 0.00% | 17,098 | $1,695,266 | $1,131,717 | -$563,549 | -33.24% | |
| Nuveen, Llc | 0.00% | 16,715 | $1,657,293 | $1,106,366 | -$550,927 | -33.24% | |
| Apis Capital Advisors, Llc | 0.15% | 16,000 | $1,586,400 | $1,059,040 | -$527,360 | -33.24% | |
| Russell Investments Group, Ltd. | 0.00% | 14,667 | $1,454,232 | $970,809 | -$483,423 | -33.24% | |
| Xtx Topco Ltd | 0.02% | 14,548 | $1,442,434 | $962,932 | -$479,502 | -33.24% | |
| Informed Momentum Co Llc | 0.13% | 14,516 | $1,439,261 | $960,814 | -$478,447 | -33.24% | |
| Exoduspoint Capital Management, Lp | 0.01% | 14,110 | $1,399,006 | $933,941 | -$465,065 | -33.24% | |
| Osaic Holdings, Inc. | 0.00% | 13,104 | $1,299,255 | $867,354 | -$431,901 | -33.24% | |
| Platinum Investment Management Ltd | 0.31% | 12,839 | $1,272,987 | $849,813 | -$423,174 | -33.24% | |
| Charles Schwab Investment Management Inc | 0.00% | 12,807 | $1,269,814 | $847,695 | -$422,119 | -33.24% | |
| First Trust Advisors Lp | 0.00% | 12,763 | $1,265,451 | $844,783 | -$420,668 | -33.24% | |
| Qube Research & Technologies Ltd | 0.00% | 11,986 | $1,188,412 | $793,353 | -$395,059 | -33.24% | |
| Raymond James Financial Inc | 0.00% | 11,912 | $1,181,075 | $788,455 | -$392,620 | -33.24% | |
| Janney Montgomery Scott Llc | 0.00% | 11,778 | $1,168,000 | $779,586 | -$388,414 | -33.25% | |
| Susquehanna International Group, Llp | 0.00% | 11,028 | $1,093,426 | $729,943 | -$363,483 | -33.24% | |
| Principal Financial Group Inc | 0.00% | 13,398 | $1,048,527 | $886,814 | -$161,713 | -15.42% |
Frequently asked questions about MPTI
Who are the largest institutional holders of MPTI?
The largest institutional holders of MPTI reported in the latest SEC Form 13F filings include T. Rowe Price Investment Management, Inc., Blackrock, Inc., Gamco Investors, Inc. Et Al, Vanguard Capital Management Llc, and Royce & Associates Lp. InsiderSet ranks institutional holders by their latest reported MPTI position.
What is MPTI institutional ownership?
This page tracks MPTI positions reported by institutional investment managers through SEC Form 13F. M-TRON INDUSTRIES INC (MPTI) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own MPTI?
InsiderSet currently tracks 117 institutional managers reporting MPTI holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of MPTI shareholders.
How much MPTI stock do institutions own?
Institutional investment managers disclosed approximately $285.61M in MPTI holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was MPTI institutional ownership last updated?
The latest MPTI institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional MPTI holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its MPTI position after the reporting date.
Are institutions buying or selling MPTI?
Institutional buying and selling can be analyzed by comparing MPTI positions across consecutive 13F reporting periods. InsiderSet's MPTI Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View MPTI ownership changes.
How has MPTI institutional ownership changed over time?
InsiderSet tracks MPTI institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.