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$OSS All transactions

ONE STOP SYSTEMS, INC.

A

$ Value

$0

Shares

Price

$0

Filed

Mar 27

Insider

Name

KNOWLES MICHAEL

Title

Chief Executive Officer

CIK

0001755059

Roles

Director Officer

Transaction Details

Transaction Date

2025-05-21

Code

A

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

591,653

Footnotes

This Form 4/A amends the Form 4 filed on September 2, 2025, solely to correct a clerical error in the prior report, which incorrectly reflected the grant of 21,000 restricted stock units on May 21, 2025. | As a result of this update, the number of shares beneficially owned by the Reporting Person following such transaction has been correspondingly decreased by 21,000 shares. As of March 16, 2026, the Reporting Person beneficially owns 627,058 shares. This amendment does not reflect any change in beneficial ownership other than as described above.

Filing Info

Accession No.

0001755059-26-000006

Form Type

4/A

Issuer CIK

0001394056

KNOWLES MICHAEL's History

Date Ticker Type Value
2026-02-15 OSS F $58K
2026-02-07 OSS A $0
2026-02-07 OSS F $123K
2025-12-31 OSS F $137K
2025-08-20 OSS F $44K
2025-06-05 OSS F $58K
2025-05-21 OSS A $0
2025-05-21 OSS A $0
2025-02-20 OSS F $63K
2025-02-07 OSS A $534K

Other Insiders at OSS (90d)

Insider Bought Sold Last
Ison James
CPO
2026-02-15
KNOWLES MICHAEL
Chief Executive Officer
2026-02-15
Gabel Daniel G.
Chief Financial Officer
2026-02-07