KNOWLES MICHAEL 4/A

What Happened Michael Knowles, CEO of One Stop Systems, filed an amended Form 4 to correct a clerical error in a prior filing. A May 21, 2025 entry that had incorrectly reported a grant of 21,000 restricted stock units is corrected to show 0 shares granted, at $0.00, with no value exchanged. This amendment does not reflect any actual purchase, sale, or new award.

Key Details

• Transaction date reported: May 21, 2025 (original Form 4 filed Sept 2, 2025); this amendment filed Mar 27, 2026.
• Reported transaction: Code A (award/grant) but corrected to 0 shares @ $0.00; total value $0.
• Beneficial ownership after correction: 627,058 shares (as of Mar 16, 2026). The corrected report reduces previously reported ownership by 21,000 shares.
• Footnotes: Amendment solely corrects a clerical error in the prior Form 4; no other changes in beneficial ownership other than the correction.
• Timeliness: The original Form 4 was filed Sept 2, 2025 for a May 21, 2025 transaction; this amendment was filed on Mar 27, 2026 to correct the error.

Context This filing is an administrative correction and does not indicate insider buying or selling activity. Because no shares or value were actually granted in this corrected entry, there is no direct trading signal for investors to interpret from this amendment.