OSS

One Stop Systems, Inc.$4.83-0.30 (-5.93%)

Prev Close$5.14·MCap$145.2M·P/E17.08·Vol1.51M·Yield—

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Buys (12M)

$0.00

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Sells (12M)

$529.4K

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Net Activity

Net Seller

$529.4K

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Active Insiders

last 12 mo

Over the past 12 months, insider activity at One Stop Systems, Inc. (OSS) has been exclusively selling, with 0 insider purchases totaling $0.00 and 5 insider sales totaling $529.4K. The most recent insider transaction was by Matz Gregory W (director), who sold $140.2K worth of shares on May 26, 2026. One Stop Systems, Inc. operates in the Technology sector, within the Computer Hardware industry, with a market cap of $145.2M.

OSS Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
May 26, 2026	Matz Gregory W	director	Sell	8,000	$17.52	$140.2K	78,914
May 26, 2026	BASSETT DAVID GEORGE	director	Sell	8,000	$17.64	$141.1K	24,984
May 26, 2026	Herbets Mitchell H	director	Sell	5,000	$17.62	$88.1K	48,984
Dec 31, 2025	Gabel Daniel G.	Chief Financial Officer	Sell	3,215	$7.18	$23.1K	0
Dec 31, 2025	KNOWLES MICHAEL	Chief Executive Officer	Sell	19,075	$7.18	$137.0K	0
Aug 20, 2025	Ison James	CPO	Sell	3,113	$5.26	$16.4K	0
Feb 20, 2025	Ison James	CPO	Sell	7,006	$3.76	$26.3K	0
Feb 7, 2025	KNOWLES MICHAEL	Chief Executive Officer	Sell	44,234	$3.74	$165.5K	0
Aug 15, 2024	Manko Joseph M. Jr.		Buy	75,000	$1.96	$146.8K	1,174,899
Aug 18, 2023	KNOWLES MICHAEL	Chief Executive Officer	Buy	1,130	$1.80	$2.0K	401,130
Aug 15, 2023	Matz Gregory W	Director	Buy	2,500	$1.77	$4.4K	32,930
Aug 15, 2023	RAUN DAVID	Director	Buy	5,000	$1.97	$9.8K	411,644
Aug 19, 2021	RAUN DAVID	President and CEO	Buy	2,000	$5.45	$10.9K	155,959
Jun 30, 2021	Messinger Gioia	Director	Buy	1,000	$5.66	$5.7K	16,590
Apr 1, 2021	Reardon James M	VP of Sales	Sell	100,000	$5.89	$588.8K	1,079,312
Mar 31, 2021	Lowman Teresita M.	Director	Buy	2,000	$5.91	$11.8K	8,164+32%
Mar 31, 2021	RAUN DAVID	President and CEO	Buy	2,000	$6.07	$12.1K	83,544

OSS Insider Buying Activity

The following table shows recent insider purchases of One Stop Systems, Inc. (OSS) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Aug 15, 2024	Manko Joseph M. Jr.		Buy	75,000	$1.96	$146.8K	1,174,899
Aug 18, 2023	KNOWLES MICHAEL	Chief Executive Officer	Buy	1,130	$1.80	$2.0K	401,130
Aug 15, 2023	Matz Gregory W	Director	Buy	2,500	$1.77	$4.4K	32,930
Aug 15, 2023	RAUN DAVID	Director	Buy	5,000	$1.97	$9.8K	411,644
Aug 19, 2021	RAUN DAVID	President and CEO	Buy	2,000	$5.45	$10.9K	155,959
Jun 30, 2021	Messinger Gioia	Director	Buy	1,000	$5.66	$5.7K	16,590
Mar 31, 2021	Lowman Teresita M.	Director	Buy	2,000	$5.91	$11.8K	8,164+32%
Mar 31, 2021	RAUN DAVID	President and CEO	Buy	2,000	$6.07	$12.1K	83,544

OSS Insider Selling Activity

The following table shows recent insider sales of One Stop Systems, Inc. (OSS) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
May 26, 2026	Matz Gregory W	director	Sell	8,000	$17.52	$140.2K	78,914
May 26, 2026	BASSETT DAVID GEORGE	director	Sell	8,000	$17.64	$141.1K	24,984
May 26, 2026	Herbets Mitchell H	director	Sell	5,000	$17.62	$88.1K	48,984
Dec 31, 2025	Gabel Daniel G.	Chief Financial Officer	Sell	3,215	$7.18	$23.1K	0
Dec 31, 2025	KNOWLES MICHAEL	Chief Executive Officer	Sell	19,075	$7.18	$137.0K	0
Aug 20, 2025	Ison James	CPO	Sell	3,113	$5.26	$16.4K	0
Feb 20, 2025	Ison James	CPO	Sell	7,006	$3.76	$26.3K	0
Feb 7, 2025	KNOWLES MICHAEL	Chief Executive Officer	Sell	44,234	$3.74	$165.5K	0
Apr 1, 2021	Reardon James M	VP of Sales	Sell	100,000	$5.89	$588.8K	1,079,312