MPTI
M-tron Industries, Inc.Marquee-fund ownership over time
This quarter's activity
New positions opened
Positions exited
None.
Current holders
Sorted by tenure (longest first)| Fund | First disclosed | Held | Entry price | Latest close | Return on entry |
|---|---|---|---|---|---|
| Citadel Advisors re-entered | Q3 2024(8Q snapshot) | 7Q | $35 | $78 | +119% |
| Renaissance Technologies | Q4 2024(8Q snapshot) | 6Q | $54 | $78 | +44% |
| Millennium Management re-entered | Q1 2025(8Q snapshot) | 5Q | $50 | $78 | +55% |
| Two Sigma Investments | Q3 2025(8Q snapshot) | 3Q | $42 | $78 | +86% |
| AQR Capital Management | Q4 2025(8Q snapshot) | 2Q | $51 | $78 | +52% |
| D.E. Shaw | Q2 2026(8Q snapshot) | 1Q | $79 | $78 | -2% |
“Return on entry” is the price-only move from the fund's first disclosure to today — it ignores any adds, trims, or dividends. A fund that built its position over multiple quarters has a true cost basis somewhere between entry price and latest close; this figure is the upper bound.
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at M-tron Industries, Inc.. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.
30d / 90d windows measured from May 6, 2026 — the most recent Form 4 on file — not from today.
- Form 40001437749-26-015231May 6, 2026
- Form 40001437749-26-015227May 6, 2026
- Form 40001437749-26-015223May 6, 2026
- Form 40001437749-26-014702May 4, 2026
- Form 40001437749-26-013872Apr 29, 2026
- Form 4/Aamend0001437749-26-013869Apr 29, 2026
- Form 40001437749-26-013710Apr 28, 2026
- Form 40000807249-26-000045Apr 28, 2026
- Form 40001437749-26-013240Apr 24, 2026
- Form 40001437749-26-013090Apr 23, 2026
- Form 40001437749-26-012495Apr 16, 2026
- Form 40001437749-26-011647Apr 7, 2026
- Form 40001437749-26-011624Apr 7, 2026
- Form 40001437749-26-011622Apr 7, 2026
- Form 4/Aamend0001437749-26-011621Apr 7, 2026
Fundamentals
XBRL · M-tron Industries, Inc.Annual figures sourced directly from M-tron Industries, Inc.'s 10-K / 10-Q filings via SEC EDGAR XBRL. Latest fiscal year and the year-over-year change, with up to ten years of history.
Recent SEC filings
10-K · 10-Q · 8-K · 13D/G · proxyThe most recent material filings for M-tron Industries, Inc. — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 8-KFORM 8-KMay 14, 2026
- 10-QFORM 10-QMay 13, 2026
- 8-KFORM 8-KMay 8, 2026
- DEF 14AFORM DEF 14AApr 30, 2026
- 8-KFORM 8-KApr 27, 2026
- 8-KFORM 8-KApr 21, 2026
- 8-KFORM 8-KApr 9, 2026
- 8-K/AFORM 8-K/AMar 31, 2026
- 8-KFORM 8-KMar 30, 2026
- 10-KFORM 10-KMar 26, 2026
- 8-KFORM 8-KMar 24, 2026
- 8-KFORM 8-KMar 18, 2026
- 8-KFORM 8-KJan 7, 2026
- 8-KFORM 8-KDec 10, 2025
- 8-K/AFORM 8-K/ADec 5, 2025
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| D.E. Shaw | Q2 2026 | open | $79 | $78 | -2% |
| Millennium Management | Q1 2026 | open | $62 | $78 | +26% |
| AQR Capital Management | Q4 2025 | open | $51 | $78 | +52% |
| Citadel Advisors | Q3 2025 | open | $42 | $78 | +86% |
| Two Sigma Investments | Q3 2025 | open | $42 | $78 | +86% |
| Millennium Management | Q1 2025 | Q4 2025 | $50 | $51 | +1% |
| Renaissance Technologies | Q4 2024 | open | $54 | $78 | +44% |
| Citadel Advisors | Q3 2024 | Q1 2025 | $35 | $50 | +42% |
- Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
- Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
- “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
- Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
- Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.