SC Filed 2023-12-05 Event — SEC 0000807249-23-000161 →

GABELLI MARC → 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)

58 transactions

10 buys · 14 sales · 2 awards/exercises

Issuer Cluster

4 13D/G filings on this issuer

3 other filings besides this one

Filer Track Record

3 filings by this filer

2 other filings in the data moat

Short Interest · settle 2026-07-15

DTC 1.15

243,549 shares short · +5.4% vs prior

Form 4 Insider Transactions · last 365d

Date	Insider	Role	Type	Shares	Price	Value
2026-05-04	Drafts William Arnold	officer	Sale	361	$66.78	$24K
2026-05-04	Pforr Cameron	officer	Sale	840	$66.78	$56K
2026-05-04	Biles Linda M	officer	Sale	306	$66.78	$20K
2026-04-29	Pforr Cameron	officer	Option exercise	220	$40.32	$9K
2026-04-28	Pforr Cameron	officer	Option exercise	220	$40.32	$9K
2026-04-27	Arteaga Ivan	director	X	24	$59.00	$1K
2026-04-20	GABELLI MARC	director	X	3,276	$59.00	$193K
2026-04-20	GABELLI MARC	director	X	16,380	$59.00	$966K
2026-04-20	Susanto Hendi	director	X	1,071	$59.00	$63K
2026-04-20	Susanto Hendi	director	X	5,355	$59.00	$316K
2026-04-14	Susanto Hendi	director	X	454	$59.00	$27K
2026-04-14	Biles Linda M	officer	Sale	720	—	—
2026-04-14	Biles Linda M	officer	Sale	2,700	$59.00	$159K
2026-04-14	Susanto Hendi	director	X	2,274	$59.00	$134K
2026-04-14	Drafts William Arnold	officer	Sale	540	$59.00	$32K
2026-04-14	Biles Linda M	officer	Sale	2,700	$59.00	$159K
2026-04-13	Drafts William Arnold	officer	Sale	7,609	$59.00	$449K
2026-04-13	Arteaga Ivan	director	X	870	$59.00	$51K
2026-04-10	Arteaga Ivan	director	X	174	$59.00	$10K
2026-04-09	Biles Linda M	officer	Sale	24,643	$59.00	$1.45M
2026-04-07	Pforr Cameron	officer	X	100	$59.00	$6K
2026-04-07	Pforr Cameron	officer	X	500	$59.00	$30K
2026-04-07	Pforr Cameron	officer	Sale	21,500	$59.00	$1.27M
2026-04-06	Drafts William Arnold	officer	Sale	3,600	$59.00	$212K
2026-04-02	Pforr Cameron	officer	Award	5,646	—	—

Showing 25 of 58

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 →
2023-10-10	SC	GAMCO INVESTORS, INC. ET AL	—	—	view →

Other Filings by GABELLI MARC

Filed	Form	Issuer	Stake	Shares
2026-07-28	SCHEDULE 13D/A	LGL GROUP INC	—	4,387,727	view →
2024-01-08	SC	M-tron Industries, Inc. MPTI	—	—	view →

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