MPTI · AMEX · Hardware, Equipment & Parts

M-tron Industries (MPTI)

Precision timing, filter, and RF assemblies for harsh-environment electronic systems.

$74.47
vs last close+0.20 (+0.27%)

13F · 13D/G · Form 4

Institutions≈ 81.21%2.90M shares
121 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail
Insiders0.81%28.7K shares
1 holder · as of Aug 19, 2026
Other≈ 17.98%641.0K shares
remainder

3.57M company shares as of Sep 11, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

Two share counts disagree (4.35M in the company's Sep 22, 2026 report, 3.57M elsewhere); stakes use the report.

This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.

13F · 13D/G · Form 4

HolderStakeSharesDate
T. Rowe Price Investment Management, Inc.Institution
7.17%255,506as of Jun 30, 2026
BlackRock, Inc.Institution
7.10%252,972as of Jun 30, 2026
Gamco Investors, Inc. et alInstitution
5.65%201,280as of Jun 30, 2026
Vanguard Capital Management LLCInstitution
4.86%173,148as of Jun 30, 2026
Royce & Associates LPInstitution
4.39%156,595as of Jun 30, 2026
Two Sigma Investments, LPInstitution
3.72%132,465as of Jun 30, 2026
Next Century Growth Investors LLCInstitution
3.48%124,173as of Jun 30, 2026
Geode Capital Management, LLCInstitution
2.82%100,646as of Jun 30, 2026
Renaissance Technologies LLCInstitution
2.69%96,005as of Jun 30, 2026
State Street CorpInstitution
2.31%82,493as of Jun 30, 2026
Palisades Investment Partners, LLCInstitution
2.31%82,296as of Jun 30, 2026
Congruence Capital, LLCInstitution
1.87%66,701as of Jun 30, 2026
Advisory Research IncInstitution
1.66%59,011as of Jun 30, 2026
Herald Investment Management LtdInstitution
1.64%58,500as of Jun 30, 2026
Grandeur Peak Global Advisors, LLCInstitution
1.59%56,681as of Jun 30, 2026
D. E. Shaw & Co., Inc.Institution
1.36%48,493as of Jun 30, 2026
Dimensional Fund Advisors LPInstitution
1.34%47,681as of Jun 30, 2026
Hunter Associates Investment Management LLCInstitution
1.31%46,804as of Jun 30, 2026
Bard Associates IncInstitution
1.25%44,578as of Jun 30, 2026
Aristides Capital LLCInstitution
1.16%41,209as of Jun 30, 2026
Northern Trust CorpInstitution
1.12%39,832as of Jun 30, 2026
Potrero Capital Research LLCInstitution
1.07%38,161as of Jun 30, 2026
New York State Common Retirement FundInstitution
0.89%31,660as of Jun 30, 2026
Vanguard Portfolio Management LLCInstitution
0.87%30,954as of Jun 30, 2026
BNP Paribas Arbitrage, SNCInstitution
0.86%30,583as of Jun 30, 2026

13F, as of Jun 30, 2026

121 holders · 2.90M shares · 37 new positions · 94 increased · 17 reduced · 13 closed

HolderShares% outstandingChg q/qFiled
T. Rowe Price Investment Management, Inc.255.5K7.17%+255.5KnewAug 14, 2026
BlackRock, Inc.253.0K7.10%+111.2KAug 7, 2026
Gamco Investors, Inc. et al201.3K5.65%+32.9KAug 12, 2026
Vanguard Capital Management LLC173.1K4.86%+56.4KAug 13, 2026
Royce & Associates LP156.6K4.39%+148.3KAug 14, 2026
Two Sigma Investments, LP132.5K3.72%+70.0KAug 14, 2026
Next Century Growth Investors LLC124.2K3.48%+16.0KAug 14, 2026
Geode Capital Management, LLC100.6K2.82%+36.7KAug 12, 2026

13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
BlackRock, Inc.7.60%282.6K13GApr 27, 2026
Bank of America Corp /DE/6.10%212.4K13GMay 14, 2026
T. Rowe Price Investment Management, Inc.5.90%255.5K13GAug 14, 2026

Form 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Aug 11, 2026
Linda M. Bilesofficer: Executive VP - Finance
Sale1,218$85.0528,723

House and Senate disclosures

Not reported.