SC Filed 2023-10-10 Event — SEC 0000807249-23-000128 →

GAMCO INVESTORS, INC. ET AL → M-tron Industries, Inc. MPTI

Stake: — Shares: —

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

1 transaction

0 buys · 1 sales · 0 awards/exercises

Issuer Cluster

4 13D/G filings on this issuer

3 other filings besides this one

Filer Track Record

200 filings by this filer

199 other filings in the data moat

Short Interest · settle 2026-03-31

DTC 2.06

320,365 shares short · +266.6% vs prior

Form 4 Insider Transactions · last 365d

Date	Insider	Role	Type	Shares	Price	Value
2026-04-06	Drafts William Arnold	officer	Sale	3,600	$59.00	$212K

Other 13D/G Filings on M-tron Industries, Inc.

Filed	Form	Filer	Stake	Shares
2024-01-08	SC	GABELLI MARC	—	—	view →
2023-12-11	SC	GAMCO INVESTORS, INC. ET AL	—	—	view →
2023-12-05	SC	GABELLI MARC	—	—	view →

Other Filings by GAMCO INVESTORS, INC. ET AL

Filed	Form	Issuer	Stake	Shares
2026-04-09	SCHEDULE 13D/A	CORE MOLDING TECHNOLOGIES INC CMT	4.10%	0	view →
2026-01-29	SCHEDULE	MONRO, INC. MNRO	5.80%	1,740,697	view →
2026-01-28	SCHEDULE	BEL FUSE INC /NJ BELFB	3.00%	63,800	view →
2026-01-13	SCHEDULE	LENNAR CORP /NEW/ LEN-B	3.60%	1,141,300	view →
2026-01-08	SCHEDULE	ASTEC INDUSTRIES INC ASTE	5.10%	1,167,886	view →
2025-12-29	SCHEDULE	Gabelli Healthcare & WellnessRx Trust GRX	33.90%	2,400,000	view →
2025-12-29	SCHEDULE	GABELLI DIVIDEND & INCOME TRUST GDV-PK	18.50%	5,430,000	view →
2025-12-29	SCHEDULE	GOLDEN ENTERTAINMENT, INC. GDEN	4.20%	1,087,600	view →
2025-11-07	SCHEDULE	PARK OHIO HOLDINGS CORP PKOH	8.50%	1,220,559	view →
2025-11-07	SCHEDULE	MONRO, INC. MNRO	4.80%	1,440,675	view →
2025-11-03	SCHEDULE	Gabelli Healthcare & WellnessRx Trust GRX	40.50%	2,200,000	view →
2025-10-14	SCHEDULE	LENNAR CORP /NEW/ LEN-B	3.60%	1,141,400	view →
2025-09-30	SCHEDULE	TREDEGAR CORP TG	17.20%	5,994,705	view →
2025-09-29	SCHEDULE	DallasNews Corp	—	—	view →
2025-09-15	SCHEDULE	NOBILITY HOMES INC NOBH	8.40%	273,350	view →
2025-08-01	SCHEDULE	Paramount Global	6.20%	2,531,269	view →
2025-07-01	SCHEDULE	Gabelli Healthcare & WellnessRx Trust GRX	12.00%	400,000	view →
2025-04-03	SCHEDULE	VOXX International Corp	—	—	view →
2025-04-02	SCHEDULE	INTEVAC INC	—	—	view →
2025-03-10	SCHEDULE	VOXX International Corp	5.50%	1,111,805	view →

Showing 20 of 199

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