Lifeloc Technologies LCTC Insider Ownership

OTC LCTC

$4.00 +0.00 (+0.00%)

At close: Oct 14, 2026 · 4:00 PM EDT

Insider Holdings by Owner

4.80Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

99.06%

■0% pp QoQ

Shares Held by Insiders

2.73Mn

filed for Sep 2026

■0.00% QoQ

Shares Outstanding

2.75Mn

2,752,616 shares

Direct Holdings

2.14Mn

Indirect: 581.85K

Net Shares Traded (QoQ)

no net change in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 5, 2026

Over the past year, LCTC insiders bought $3,500 of stock (1.4K shares) on the open market and sold none.

A count shows 2 insiders buying LCTC stock on the open market over the past 12 months and none selling.
Among Lifeloc Technologies' insiders, the largest open-market purchases in the past 12 months were by Wayne Willkomm (CEO and President), totaling $3,250 (1.3K shares), most recently on June 23, 2026.
Business Quant data puts insider holdings in LCTC at 2.73Mn shares across insiders' latest Form 4 filings, or 99.06% of the 2.75Mn shares outstanding; that total is unchanged from 2.73Mn shares at the end of Q2 2026 and up 0.05% from 2.73Mn shares at the end of Q3 2025.
Direct holdings account for 2.14Mn shares (78.66%) of LCTC's insider total, and indirect holdings through trusts, partnerships and family members for 581.85K shares (21.34%).
The insider holdings in Lifeloc Technologies belong to 5 insiders who have reported on Form 4 within the past two years.
Lifeloc Technologies' three biggest insider holders are Edco Partners LLLP (10% owner, 2.1Mn shares), Donald E. Siecke (Director, 555.35K shares) and Wayne Willkomm (CEO and President, 41.62K shares), based on their latest Form 4 filings.
Edco Partners LLLP holds 77.02% of the combined insider position in Lifeloc Technologies.
A total of 2 Form 4 filings with transactions in Lifeloc Technologies stock were made over the past 12 months, by 2 insiders.
These insider figures for Lifeloc Technologies are based on Form 4 filings through June 24, 2026.

Form 4 Holdings

Insiders Holding LCTC

Insiders 6

Shares held 4.80Mn

Of outstanding 174.35%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Vern D Kornelsen	Chief Financial Officer	0	2,100,119	2,100,119	43.8%	18 Apr, 2025
2	Partners Lllp Edco	TenPercentOwner	2,100,119	0	2,100,119	43.8%	28 Feb, 2025
3	Donald E. Siecke	Director	1,000	554,352	555,352	11.6%	18 Apr, 2025
4	Wayne Willkomm	Ceo And President	41,625	0	41,625	0.9%	24 Jun, 2026
5	Michael Kornelsen	Director	1,100	0	1,100	0.0%	24 Jun, 2026
6	Adam W. Kashenberg	Director	1,000	0	1,000	0.0%	04 Mar, 2025

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

41 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
16 Jun, 2026	Michael Kornelsen	Director	Acquired P	100	$2.50	$250	1,100	Direct
23 Jun, 2026	Wayne Willkomm	Ceo And President	Acquired P	1,300	$2.50	$3.25K	41,625	Direct
28 Feb, 2025	Michelle Heim	Controller	Acquired M	1,500	$3.80	$5.70K	1,500	Direct
28 Feb, 2025	Michelle Heim	Controller	Disposed S	1,500	$3.80	$5.70K	0	Direct
28 Feb, 2025	Michelle Heim	Controller	Disposed M	1,500	$0.00	$0	0	Direct
28 Feb, 2025	Michael Kornelsen	Director	Acquired M	1,000	$3.80	$3.80K	1,000	Direct
28 Feb, 2025	Vern D Kornelsen	Chief Financial Officer	Acquired P	12,250	$3.80	$46.55K	2,100,119	Indirect
28 Feb, 2025	Wayne Willkomm	Ceo And President	Acquired M	37,500	$3.80	$142.50K	40,325	Direct
28 Feb, 2025	Donald E. Siecke	Director	Acquired M	1,000	$3.80	$3.80K	1,000	Direct
28 Feb, 2025	Donald E. Siecke	Director	Acquired P	16,000	$3.80	$60.80K	554,352	Indirect
28 Feb, 2025	Donald E. Siecke	Director	Disposed M	1,000	$0.00	$0	0	Direct
28 Feb, 2025	Michael Kornelsen	Director	Disposed M	1,000	$0.00	$0	0	Direct
28 Feb, 2025	Wayne Willkomm	Ceo And President	Disposed M	37,500	$0.00	$0	0	Direct
28 Feb, 2025	Donald E. Siecke	Director	Acquired M	1,000	$3.80	$3.80K	1,000	Direct
28 Feb, 2025	Adam W. Kashenberg	Director	Disposed P	1,000	$3.80	$3.80K	1,000	Direct
28 Feb, 2025	Michael Kornelsen	Director	Acquired M	1,000	$3.80	$3.80K	1,000	Direct
28 Feb, 2025	Wayne Willkomm	Ceo And President	Acquired M	37,500	$3.80	$142.50K	40,325	Direct
28 Feb, 2025	Michael Kornelsen	Director	Disposed M	1,000	$0.00	$0	0	Direct
28 Feb, 2025	Wayne Willkomm	Ceo And President	Disposed M	37,500	$0.00	$0	0	Direct
28 Feb, 2025	Donald E. Siecke	Director	Disposed M	1,000	$0.00	$0	0	Direct

Showing 1 to 20 of 41 transactions