M-Tron Industries Inc. -28MPTI.WSPreferred / convertible

13F holders, Q3 2025 (September 30)
39holders +4
7new positions
4sold out
1famous investor
$1.99avg. 13F price*

At the end of Q3 2025, 39 institutions reported holding M-Tron Industries Inc. -28 (MPTI.WS) in their 13F filings, up 4 from Q2 2025. 7 opened new positions and 4 sold out. The largest holders were Aristides Capital LLC ($454K), Boothbay Fund Management, LLC ($269K) and GAMCO Investors ($261K). One famous investor held it Mario Gabelli ( of GAMCO Investors's portfolio).

Company
M-Tron Industries Inc. -28
CUSIP
55380K125
Latest filing quarter
Q4 2025

History

Number of 13F holders

010203040 Q1 2025: 1Q1 2025Q2 2025: 35Q2 2025Q3 2025: 39Q3 2025Q4 2025: 3Q4 2025

Total Exit/New Position Q2 2025 → Q3 2025

InstitutionsTotal Value
New Positions7$619K
Exits4$33K

All 13F filers, Q2 2025 → Q3 2025: 371,173 shares bought and 37,780 shares sold, net +333,393 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 39 holders
Aristides Capital LLC — New 259,479 $454K
Boothbay Fund Management, LLC — No change 4,842 $269K
GAMCO Investors — No change 149,000 $261K
Vanguard Group Inc. — Add +1.2% 106,131 $186K
Bard Associates Inc. — Add +0.2% 87,280 $153K
Next Century Growth Investors LLC — Reduce -0.4% 70,349 $123K
Palisades Investment Partners, LLC — New 65,856 $115K
Susquehanna International Group, LLP — Add +49.7% 44,794 $78K
Osaic Holdings, Inc. — Reduce -2.9% 34,729 $57K
Clear Street Group Inc. — — 30,332 $53K
G2 Investment Partners Management LLC — No change 29,454 $52K
New York State Common Retirement Fund — No change 24,800 $43K
Geode Capital Management, LLC — No change 24,073 $42K
Illumine Investment Management, LLC — New 23,994 $42K
Cable Car Capital, LP — No change 22,700 $40K
McIntyre Freedman & Flynn Investment Advisers Inc. — No change 22,000 $39K
Concorde Asset Management, LLC — — 18,333 $30K
BlackRock, Inc. — Reduce -0.4% 12,337 $22K
Ameriprise Financial Inc. — Reduce -0.7% 10,698 $19K
Acadian Asset Management LLC — No change 10,367 $16K
Morgan Stanley — Add +0.1% 6,796 $12K
UMB Bank, n.a. — New 2,133 $4K
Bank of America Corp. — Reduce -33.0% 1,820 $3K
Truvestments Capital LLC — New 1,544 $3K
UBS Group AG — Add +170.0% 1,250 $2K
AlphaQuest LLC — No change 1,141 $2K
Caldwell Sutter Capital, Inc. — New 724 $1K
BNP Paribas Financial Markets — Add +83.2% 676 $1K
Royal Bank of Canada — Reduce -90.5% 400 $1K
CIBC Private Wealth Group LLC — No change 500 $863
Wells Fargo & Company — Add +24.0% 310 $543
Bfsg, LLC — No change 300 $525
Federated Hermes, Inc. — No change 207 $362
Optimum Investment Advisors — No change 200 $350
MCF Advisors LLC — No change 88 $154
WealthCollab, LLC — No change 81 $142
Barclays PLC — No change 63 $111
IFP Advisors, Inc — No change 50 $88
Founders Capital Management — New 5 $9

"% of holder's portfolio" is MPTI.WS's weight in each manager's 13F, not the share of M-Tron Industries Inc. -28 the manager owns.