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One Stop Systems

One Stop Systems (NASDAQ: OSS) insider transactions

In the twelve months to 10 November 2026, executives and directors of One Stop Systems reported 3 open-market sales of 21,000 shares ($369,380) and 0 open-market purchases, by 3 people, according to the Form 4 filings they submitted to the SEC.

Latest transactions

The 20 most recent transactions in One Stop Systems shares reported on Form 4
DateInsiderRoleTransactionSharesPriceHeld afterFiling
15 August 2026Knowles MichaelChief Executive OfficerShares withheld for tax−8,621$13.61590,141Form 4
7 August 2026Gabel Daniel G.Chief Financial OfficerShares withheld for tax−3,832$13.32150,064Form 4
7 August 2026Knowles MichaelChief Executive OfficerShares withheld for tax−8,621$13.32598,762Form 4
5 June 2026Knowles MichaelChief Executive OfficerShares withheld for tax−19,675$16.89607,383Form 4
26 May 2026Herbets Mitchell HDirectorOpen-market sale−5,000$17.6248,984Form 4
26 May 2026Matz Gregory WDirectorOpen-market sale−8,000$17.5278,914Form 4
26 May 2026Bassett David GeorgeDirectorOpen-market sale−8,000$17.6424,984Form 4
20 May 2026Herbets Mitchell HDirectorGrant or award+11,984—53,984Form 4
20 May 2026Dumont Michael J.DirectorGrant or award+11,984—119,833Form 4
20 May 2026Matz Gregory WDirectorGrant or award+11,984—86,914Form 4
20 May 2026Bassett David GeorgeDirectorGrant or award+11,984—32,984Form 4
11 May 2026Gabel Daniel G.Chief Financial OfficerShares withheld for tax−1,613$15.68153,896Form 4
15 February 2026Ison JamesCpoShares withheld for tax−3,120$8.70146,170Form 4
15 February 2026Ison JamesCpoGift−4,263—141,907Form 4
15 February 2026Ison JamesCpoGift+4,263—231,148Form 4
15 February 2026Knowles MichaelChief Executive OfficerShares withheld for tax−6,650$8.70648,058Form 4
7 February 2026Ison JamesCpoGrant or award+34,313—155,836Form 4
7 February 2026Ison JamesCpoShares withheld for tax−6,546$9.24149,290Form 4
7 February 2026Ison JamesCpoGift−8,213—141,077Form 4
7 February 2026Ison JamesCpoGift+8,213—226,885Form 4

Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.

How to read the table

Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.

Where each row comes from

From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the One Stop Systems page; the method, in data sources.

Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.