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MPTI · M-tron Industries, Inc.

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$79.27 -0.40 (-0.50%) At close · Aug 26
Market Cap
$341.79M
Shares
4.35M

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: 118
Total Value: $285,779,681
Total Shares: 2,857,490

Institutional Ownership Trend

16 quarters

Holder Concentration

Across 118 13F filers · Δ vs Mar 31, 2026
Top Holder
8.9%
Sep 2023 → Jun 2026 · range 8.1% – 43.7%
+0.7 pts
Top 5
36.1%
Sep 2023 → Jun 2026 · range 30.5% – 86.5%
+5.6 pts
Top 10
54.7%
Sep 2023 → Jun 2026 · range 49.0% – 98.6%
+5.7 pts
HHI
397
Sep 2023 → Jun 2026 · range 346 – 2,515
Broadly held+51

Quarterly Activity

vs Mar 31, 2026
New
35
Increased
56
Decreased
17
Sold Out
14
Unchanged
10
Holder count: +21
Institutional value: +106.3%
Shares held: +37.9%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 118
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1902314 CUSIP 55380K109 13F (30d) 105 filings 102 filers Visit website Investor relations