MPTI · Insider trading · 13F holders · Congress trades
M-tron Industries, Inc. (MPTI)
Who is buying and selling MPTI: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 15
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $104K
- Congress trades, 12 months
- 0
MPTI at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 1 MPTI insider filed 1 sale worth $104K on SEC Form 4, and no open-market purchases.
- 15 13F filers hold MPTI among their 50 largest positions, worth $55.0M combined. The biggest bets by portfolio weight are Palisades Investment Partners, LLC (2.3%), Potrero Capital Research LLC (2.3%) and Congruence Capital, LLC (1.7%). In their latest 13Fs, 0 managers opened a new position and 5 added to one.
- No member of Congress has disclosed a trade in MPTI.
- MPTI last closed at $69.02 on Oct 29, 2026.
MPTI insider trading
Between Aug 1, 2026 and Oct 29, 2026, 1 MPTI insider filed 1 sale worth $104K on SEC Form 4, and no open-market purchases.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Aug 19, 2026 | Biles Linda M | Executive VP - Finance | Sale | 1,218 | $85.05 | $104K | SEC |
Who owns MPTI? Hedge funds and superinvestors
15 13F filers hold MPTI among their 50 largest positions, worth $55.0M combined. The biggest bets by portfolio weight are Palisades Investment Partners, LLC (2.3%), Potrero Capital Research LLC (2.3%) and Congruence Capital, LLC (1.7%). In their latest 13Fs, 0 managers opened a new position and 5 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Palisades Investment Partners, LLCInstitutional asset manager | 2.3% | $8.2M | 82,296 | +1.6% shares | Q2 2026 |
| Congruence Capital, LLCInstitutional asset manager | 1.7% | $6.6M | 66,701 | +57.8% shares | Q2 2026 |
| Advisory Research IncAsset manager | 0.6% | $5.9M | 59,011 | +16.8% shares | Q2 2026 |
| HERALD INVESTMENT MANAGEMENT LtdAsset manager | 0.8% | $5.8M | 58,500 | — | Q2 2026 |
| Grandeur Peak Global Advisors, LLCMutual fund manager | 1.3% | $5.6M | 56,681 | +11.5% shares | Q2 2026 |
| Bard Associates IncWealth manager | 1.0% | $4.4M | 44,578 | -47.9% shares | Q2 2026 |
| Aristides Capital LLCHedge fund | 1.0% | $4.1M | 41,209 | -37.3% shares | Q2 2026 |
| Hunter Associates Investment Management LLCWealth manager | 0.4% | $3.8M | 48,365 | +3.3% shares | Q3 2026 |
| Potrero Capital Research LLCHedge fund | 2.3% | $3.8M | 38,161 | +20.0% shares | Q2 2026 |
| Mcintyre Freedman & Flynn Investment Advisers IncWealth manager | 1.5% | $2.6M | 25,800 | +20.0% shares | Q2 2026 |
| Illumine Investment Management, LLCWealth manager | 1.2% | $1.8M | 0 | — | Q3 2026 |
| Concorde Asset Management, LLCWealth manager | 0.6% | $974K | 9,822 | — | Q2 2026 |
| Archon Capital Management LLCHedge fund | 0.4% | $886K | 8,933 | -88.6% shares | Q2 2026 |
| Q Fund Management (Hong Kong) LtdHedge fund | 0.4% | $464K | 5,930 | -40.7% shares | Q3 2026 |
| Worth Venture Partners, LLCVenture capital | 1.0% | $210K | 2,119 | — | Q2 2026 |
Each manager counts with its latest 13F (Q3 2026: 3, Q2 2026: 12). Screen MPTI in the grand portfolio →
MPTI stock trades by members of Congress
No member of Congress has disclosed a trade in MPTI.
MPTI questions and answers
Are insiders buying MPTI stock?
Between Aug 1, 2026 and Oct 29, 2026, 1 MPTI insider filed 1 sale worth $104K on SEC Form 4, and no open-market purchases.
Which hedge funds own MPTI?
15 13F filers hold MPTI among their 50 largest positions, worth $55.0M combined. The biggest bets by portfolio weight are Palisades Investment Partners, LLC (2.3%), Potrero Capital Research LLC (2.3%) and Congruence Capital, LLC (1.7%). In their latest 13Fs, 0 managers opened a new position and 5 added to one.
Has Congress traded MPTI?
No member of Congress has disclosed a trade in MPTI.
Who is the largest holder of MPTI?
Among 13F filers, Palisades Investment Partners, LLC reports the largest MPTI position, $8.2M (82,296 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Palisades Investment Partners, LLC's: 2.3% of its portfolio.
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