RTB Digital, Inc.: 5%+ holders

As of November 9, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of RTB Digital, Inc. The largest reported stake is Comer James Lamar Walton's, at 31.7%. 14 filings are on record since July 22, 2025 (Schedule 13D, June 26, 2026).

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Key facts

• Filing 2026-09-23 · Reporting person: Dorsett Jason Christopher · Sole voting: 4,204,028 · Shared voting: 0 · Sole dispositive: 4,204,028 · Shared dispositive: 0 · SCHEDULE 13D/A, 2026-09-23
• Filed 2026-09-21 · Holder: Dorsett Jason Christopher · Percent: 29.9% · SCHEDULE 13D/A
• Filed 2026-07-21 · Holder: Dorsett Jason Christopher · Percent: 30.6% · SCHEDULE 13G
• Filing 2026-06-26 · Reporting person: Comer James Lamar Walton · Sole voting: 4,504,276 · Shared voting: 0 · Sole dispositive: 4,504,276 · Shared dispositive: 0 · SCHEDULE 13D, 2026-06-26
• Filed 2026-04-15 · Holder: S8 Global Fintech & Regtech Fund · Percent: 0% · SCHEDULE 13D/A

RTB Digital, Inc. has 14 Schedule 13D or 13G filings on record since 2025-07-22. 4 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

Holders

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More on RTB Digital, Inc. and the records around it.

RTB Digital, Inc. elsewhere on the record

• Leadership changes Sep 2026
• Who owns it

Companies that share a holder

• Arena Investors, LP also filed stake reports on 10 other companies: RenX Enterprises Corp. (Feb 2026), Firefly Neuroscience, Inc. (Nov 2025), OceanPal Inc. (Nov 2025)
• CVI Investments, Inc. also filed stake reports on 48 other companies: Pine Tree Acquisition Corp. (Oct 2026), Sunshine Biopharma Inc. (Oct 2026), Outlook Therapeutics, Inc. (Aug 2026)

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What the Full Report on RTB Digital, Inc. covers

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5. The Money: Funding, Valuation, Runway

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7. Warning Bells

8. Sources

   19 cited sources found

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Voting and dispositive power, as filed

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The latest filing identifies RTB Digital, Inc. by CUSIP 39366L406 and gives its principal executive office as 3131 CAMINO DEL RIO NORTH, SUITE 1400, SAN DIEGO, CA 92108 (SCHEDULE 13D/A, 2026-09-23).

Source of funds (Item 3)

On May 12, 2026 (the "Closing Date"), as contemplated by the Agreement and Plan of Merger, dated September 28, 2025, as amended (the "Merger Agreement"), following the satisfaction of the closing conditions set forth in the Merger Agreement, the Issuer (f/k/a RYVYL Inc.) completed its business combination with RTB Digital, Inc. ("Legacy RTB"), pursuant to which a wholly-owned subsidiary of the Issuer merged with and into Legacy RTB, with Legacy RTB surviving as a wholly-owned subsidiary of the Issuer (the "Merger").Comer James Lamar Walton, SCHEDULE 13D, 2026-06-26

On September 21, 2026, the Reporting Person used $91,520 of personal funds to purchase 11,000 shares of Common Stock at $8.32 per share.Dorsett Jason Christopher, SCHEDULE 13D/A, 2026-09-23

Purpose of Transaction (Item 4)

S8 Global Fintech & Regtech Fund

Item 4 is hereby amended and restated as follows: As of April 9, 2026, the Reporting Person sold 102,995 shares of the Issuer's common stock, representing all shares of the Issuer's common stock then owned by the Reporting Person, in a private transaction. Accordingly, as of April 9, 2026, the Reporting Person owns no shares of common stock of the Issuer. The Reporting Person does not currently have any plans or proposals that relate to or would result in any of the matters described in Item 4(a)-(j) of Schedule 13D.Item 4 of the SCHEDULE 13D/A filed 2026-04-15

Rtb Digital Inc.

RTB Digital acquired 50,000 shares of RYVYL Series C Convertible Preferred Stock as part of a planned reverse merger transaction with RYVYL Inc. pursuant to the Agreement and Plan of Merger dated September 28, 2025 (the "Merger Agreement"). The Series C Preferred Stock currently may be converted into 12,500,000 shares of common stock, subject to the blocker provision of 19.9%, that was established October 29,2025 by mutual agreement between RYVYL INC. and RTB Digital, Inc. pursuant to the terms of the Certificate of Designation for the Series C Preferred Stock.Item 4 of the SCHEDULE 13D/A filed 2025-12-08

Comer James Lamar Walton

The information set forth or incorporated by reference in Items 3 and 6 of this Statement is incorporated by reference into this Item 4. The Reporting Person intends to continuously review his investment in the Issuer and may in the future determine (1) to acquire additional securities of the Issuer, through open market purchases, private agreements or otherwise, (2) to dispose of all or a portion of the securities of the Issuer owned by him or (3) to take any other available course of action. Notwithstanding anything contained herein, the Reporting Person specifically reserves the right to change his intention with respect to any or all of such matters. In reaching any decision as to his course of action (as well as to the specific elements thereof), the Reporting Person currently expects that he would take into consideration a variety of factors, including, but not limited to, the following: the Issuer's business and prospects; other developments concerning the Issuer and its business generally; other business opportunities available to the Reporting Person; developments with respect to the business of the Reporting Person; changes in law and government regulations; general economic conditions; and money and stock market conditions, including the market price of the securities of the Issuer. The Reporting Person is Chairman and a member of the Board of Directors of the Issuer and, accordingly, in such capacity, may have influence over the corporate activities of the …The first part of Item 4 of the SCHEDULE 13D filed 2026-06-26; the filing has the rest

Dorsett Jason Christopher

The Reporting Person acquired the shares for investment purposes.Item 4 of the SCHEDULE 13D/A filed 2026-09-23

Timeline

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Questions about who owns RTB Digital, Inc.

Who owns RTB Digital, Inc.?

On this page, 4 holders' latest ownership filings report 5% or more of RTB Digital, Inc.: Comer James Lamar Walton (31.7%, Schedule 13D, filed 2026-06-26), Dorsett Jason Christopher (30%, Schedule 13D/A, filed 2026-09-23), Rtb Digital Inc. (16.6%, Schedule 13D/A, filed 2025-12-08) and Dawson Wendy Rae (7.8%, Schedule 13G/A, filed 2025-08-15).

Who are the largest shareholders of RTB Digital, Inc.?

By the share each holder's latest filing reports, the largest holders of RTB Digital, Inc. on this page are Comer James Lamar Walton (31.7%), Dorsett Jason Christopher (30%) and Rtb Digital Inc. (16.6%).

When did Comer James Lamar Walton buy into RTB Digital, Inc.?

The filings give report dates, not purchase dates. The earliest filing from Comer James Lamar Walton on this page is the Schedule 13D, filed 2026-06-26, reporting 31.7%.

Is this an audit or a full list?

Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 14 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

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