RTB Digital investor Dorsett holds 30% stake

Dorsett reported sole voting and dispositive power over 4,204,028 shares, approximately 30.0% of RTB's outstanding common stock.

Rhea-AI Filing Summary

RTB Digital, Inc. (RTB) is the issuer whose common stock private investor Jason Christopher Dorsett reported purchasing 11,000 shares in an open-market transaction on September 21, 2026, at $8.32 per share, using $91,520 of personal funds. As of that date, he reported beneficial ownership of 4,204,028 shares, approximately 30.0% of RTB’s outstanding common stock, with sole voting and dispositive power over those shares. Dorsett stated that he acquired the shares for investment purposes.

Key Figures

Shares purchased: 11,000 shares Purchase price: $8.32 per share Personal funds used: $91,520 +2 more

5 metrics

Shares purchased 11,000 shares Open-market purchase on September 21, 2026

Purchase price $8.32 per share Open-market purchase on September 21, 2026

Personal funds used $91,520 Purchase on September 21, 2026

Beneficial ownership 4,204,028 shares As of September 21, 2026

Share of outstanding common stock Approximately 30.0% Dorsett's reported beneficial ownership as of September 21, 2026

Key Terms

beneficially owned, Sole Voting Power, Sole Dispositive Power, open-market transaction

4 terms

beneficially owned technical

"shares beneficially owned by each reporting person"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Sole Voting Power technical

"Sole Voting Power 4,204,028.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

Sole Dispositive Power technical

"Sole Dispositive Power 4,204,028.00"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

open-market transaction financial

"purchased 11,000 shares of Common Stock in an open-market transaction"

An open-market transaction is a buy or sell of a company's shares or other securities conducted on a public exchange at the current market price, rather than through a private agreement. Investors watch these trades because they change the number of shares available and can move the price immediately—similar to how a large purchase at a busy store can raise demand and affect the checkout price—so such activity can signal market sentiment and alter ownership stakes.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Jason Christopher Dorsett report buying in RTB?

Dorsett reported purchasing 11,000 shares of RTB common stock in an open-market transaction on September 21, 2026.

How much did Dorsett pay for RTB shares?

He reported a purchase price of $8.32 per share and used $91,520 of personal funds for the 11,000-share purchase.

How many RTB shares did Dorsett report beneficially owning?

As of September 21, 2026, Dorsett reported beneficial ownership of 4,204,028 shares, approximately 30.0% of RTB's outstanding common stock.

What voting and dispositive power did Dorsett report over RTB shares?

Dorsett reported sole voting power and sole dispositive power over 4,204,028 shares, with no shared voting or shared dispositive power.

Why did Dorsett say he acquired RTB shares?

Dorsett stated that he acquired the shares for investment purposes.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/23/2026 - 01:51 PM Accepted by SEC EDGAR 09/23/2026 - 01:50 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 2)

RTB Digital, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

39366L406

(CUSIP Number)

Anibal Pablo Escanellas
200 Calle San Agustin,
San Juan, PR, 00901
7874237119

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

09/21/2026

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

schemaVersion:

SCHEDULE 13D

CUSIP Number(s): 39366L406

1

Name of reporting person

Dorsett Jason Christopher

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

PF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 4,204,028.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 4,204,028.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

4,204,028.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

30.0 %

14

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Stock
(b)	Name of Issuer: RTB Digital, Inc.
(c)	Address of Issuer's Principal Executive Offices: 3131 CAMINO DEL RIO NORTH, SUITE 1400, SAN DIEGO, CALIFORNIA , 92108.
Item 2.	Identity and Background
(a)	Jason Christopher Dorsett
(b)	200 Calle San Agustin San Juan Puerto Rico 00901
(c)	The Reporting Person is a private investor and is self-employed. His principal business address is 200 Calle San Agustin, San Juan, Puerto Rico 00901, United States.
(d)	During the past five years, the Reporting Person has not been convicted in any criminal proceeding, excluding traffic violations or similar misdemeanors.
(e)	The Reporting Person has not, during the past five years, been subject to any judgment, decree, or final order involving violations of federal or state securities laws.
(f)	United States of America
Item 3.	Source and Amount of Funds or Other Consideration
	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.
Item 4.	Purpose of Transaction
	The Reporting Person acquired the shares for investment purposes.
Item 5.	Interest in Securities of the Issuer
(a)	As of September 21, 2026, the Reporting Person beneficially owns 4,204,028 shares of Common Stock, representing approximately 30.0% of the outstanding Common Stock of the Issuer.
(b)	The Reporting Person has sole voting power over 4,204,028 shares and sole dispositive power over 4,204,028 shares. The Reporting Person has no shared voting or shared dispositive power.
(c)	On September 21, 2026, the Reporting Person purchased 11,000 shares of Common Stock in an open-market transaction at $8.32 per share using personal funds.
(d)	Not applicable.
(e)	Not applicable.
Item 6.	Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer
	No new contracts, arrangements, understandings or relationships were entered into in connection with this transaction.
Item 7.	Material to be Filed as Exhibits.
	Not applicable.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dorsett Jason Christopher

Signature:	Anibal Pablo Escanellas Juan
Name/Title:	Financial Analyst
Date:	09/23/2026