Transaction · 0001193125-26-383260

KNOWLES MICHAEL

KNOWLES MICHAEL, CEO, reported a transaction classified as withholding at ONE STOP SYSTEMS, INC. involving 8621.000000 shares for an estimated $114831.72. Reported holdings after the transaction were 598762.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

withholdingSEC transaction code FCEO
OSSONE STOP SYSTEMS, INC.
Filing timeSep 04
Trade dateAug 07, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$11.24
Pre-filing
1mo ago +27.6%1w ago +8.8%1d ago +18.5%
Returns since
7d +0.0%30d +0.0%90d +0.0%180d +0.0%1y +0.0%

OSS price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
OSS since 2026-09-04Filed today · pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
withholding
Code F
Identifier
0001193125-26-383260
Common Stock
Transaction date
Aug 07, 2026
Filed Sep 04, 2026, 04:33 PM · 28d delay
Shares
8.62k sh
$1.33k per share
Estimated value
-$11.4M
Computed from shares × price
Holdings after
598k sh
Direct

Filing warnings

Notes recorded with this filing
1 warning
delayed filingThe filing was reported 28 calendar days after the transaction date.

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Delayed Filing Direct Ownership
-22score
Filing-only score

-22

Compact filing score computed from stored Form 4 facts. Version v1.

Low filing signal

This filing has a meaningfully negative filing-only score. It is likely less useful as a positive insider-activity signal.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Executive Officer

Officer YesDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    The Reporting Person forfeited 8,621 shares of common stock upon conversion of an aggregate 21,908 vested and outstanding restricted stock units into shares of common stock to cover tax withholdings,…

  2. F2

    Includes 311,403 unvested restricted stock units held by the Reporting Person, all of which remain subject to certain vesting conditions.

  3. F3

    The Reporting Person forfeited 8,621 shares of common stock upon conversion of an aggregate 21,908 vested and outstanding restricted stock units into shares of common stock to cover tax withholdings,…

  4. F4

    Includes 289,495 unvested restricted stock units held by the Reporting Person, all of which remain subject to certain vesting conditions.

Original filing · 0001193125-26-383260
Related transactions

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Same reporting owner
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