RTB Digital 10% holder buys 19K shares at $10.36

RTB Digital, Inc. (RTB) reported that ten percent owner Jason Christopher Dorsett purchased 19,000 shares of common stock on September 17, 2026 at a price of $10.36 per share in an open market or private transaction.

Rhea-AI Filing Summary

RTB Digital, Inc. (RTB) reported that ten percent owner Jason Christopher Dorsett purchased 19,000 shares of common stock on September 17, 2026 at a price of $10.36 per share in an open market or private transaction. Following this purchase, he directly holds 4,193,028 shares of RTB common stock. The filing indicates no Rule 10b5-1 trading plan for this transaction.

Insider Trade Summary

Net Buyer: 19,000 shares

Net Buy 1 txn

Insider Dorsett Jason Christopher

Role 10% Owner

Bought 19,000 shs ($197K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	19,000	$10.36	$197K

Holdings After Transaction: Common Stock — 4,193,028 shares (Direct)

Key Figures

Shares purchased: 19,000 shares Purchase price per share: $10.36 per share Shares owned after transaction: 4,193,028 shares

3 metrics

Shares purchased 19,000 shares Common stock purchased on September 17, 2026

Purchase price per share $10.36 per share Price paid for RTB common stock on September 17, 2026

Shares owned after transaction 4,193,028 shares Direct holdings of Jason Christopher Dorsett after the purchase

Key Terms

ten percent owner, open market or private transaction, Rule 10b5-1

3 terms

ten percent owner regulatory

"reporting person is listed as a ten percent owner"

open market or private transaction financial

"transaction is described as a purchase in open market or private transaction"

Rule 10b5-1 regulatory

"the filing indicates no Rule 10b5-1 trading plan for this transaction"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

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

What insider transaction did RTB (RTB) disclose in this Form 4?

RTB Digital, Inc. disclosed that ten percent owner Jason Christopher Dorsett purchased 19,000 shares of RTB common stock on September 17, 2026 in an open market or private transaction at $10.36 per share.

How many RTB shares did the insider buy and at what price?

The insider purchased 19,000 shares of RTB Digital, Inc. common stock at a price of $10.36 per share on September 17, 2026.

What is Jason Christopher Dorsett’s total RTB ownership after this transaction?

After the reported purchase, Jason Christopher Dorsett directly owns 4,193,028 shares of RTB Digital, Inc. common stock as disclosed in the Form 4.

Is the RTB insider transaction part of a Rule 10b5-1 trading plan?

No. The Form 4 indicates the Rule 10b5-1 checkbox is not selected, so no Rule 10b5-1 trading plan is reported for this transaction.

What type of transaction was reported for RTB common stock?

The filing reports a purchase of common stock, coded as a buy transaction in an open market or private transaction, for 19,000 shares at $10.36 per share.

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

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Available on EDGAR 09/21/2026 - 12:54 PM Accepted by SEC EDGAR 09/21/2026 - 12:53 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Dorsett Jason Christopher

(Last) (First) (Middle)

200 CALLE SAN AGUSTIN

(Street)

SAN JUAN PUERTO RICO 00901

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
RTB Digital, Inc. [ RTB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/17/2026		P		19,000	A	$10.36	4,193,028	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	Anibal Pablo Escanellas Juan	09/21/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)