M-tron Industries, Inc.
MPTI- Exchange
- NYSE
- Industry
- Electronic Components, NEC
- SEC CIK
- 0001902314
In the last 90 days, M-tron Industries, Inc. insiders filed 0 open-market purchases and 1 sale; 119 institutions reported holding it in 13F filings for Q2 2026, worth $288.2M in total; no superinvestor holds it.
Holders of 5% or more of MPTI
Holders whose latest Schedule 13D or 13G filing reports 5% or more of M-tron Industries, Inc., largest stake first. The change is against the holder's previous filing.
No holder currently reports owning 5% or more of M-tron Industries, Inc. on Schedule 13D or 13G.
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
2 Schedule 13D and 13G filings on M-tron Industries, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Mar 27, 20264:02 PM ET | Gamco Investors, Inc. Et Aland 3 others | 13D/A | 4.70%168.4K shares | −0.90 ppfrom 5.60%Below 5% | Mar 26, 2026 | SEC |
| Dec 16, 20244:00 PM ET | Gamco Investors, Inc. Et Aland 3 others | 13D/A | 5.60%159.0K shares | – | Dec 13, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell M-tron Industries, Inc. shares.
No Form 144 notices for M-tron Industries, Inc. are on file.