Usio officer converts 6,000 RSUs at $2.81 a share

Usio, Inc. (USIO) reported that officer Frost Houston Korth exercised restricted stock units and related tax withholding transactions.

Rhea-AI Filing Summary

Usio, Inc. (USIO) reported that officer Frost Houston Korth exercised restricted stock units and related tax withholding transactions. On August 21, 2026, 6,000 restricted stock units granted on August 21, 2025 vested and were converted into 6,000 shares of common stock at a reference price of $2.81 per share. The reporting person then returned 1,630 shares to the issuer at $2.81 per share to cover taxes due. Following the RSU conversion, 31,000 restricted stock units are reported as directly owned.

Insider Trade Summary

6,000 shares exercised/converted

Exercise 3 txns

Insider Frost Houston Korth

Role SVP, Chief Product Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units F1	6,000	$2.81	$17K
Exercise	Common Stock F1	6,000	$2.81	$17K
Tax Withholding	Common Stock F2	1,630	$2.81	$5K

Holdings After Transaction: Restricted Stock Units — 31,000 contracts (Direct); Common Stock — 779,478 shares (Direct)

Footnotes (2)

1. F1. The reporting person received these shares of common stock due to the vesting and subsequent conversion of restricted stock units granted on August 21, 2025, and vested on August 21, 2026.
2. F2. The reporting person returned 1,630 shares to the issuer at the closing price of 2.81 on August 21, 2026, to cover taxes due.

Key Figures

RSUs vested and converted: 6,000 units Shares returned for taxes: 1,630 shares Reference share price: $2.81 per share +2 more

5 metrics

RSUs vested and converted 6,000 units Restricted stock units granted August 21, 2025 and vested August 21, 2026

Shares returned for taxes 1,630 shares Common stock returned to issuer on August 21, 2026 to cover taxes due

Reference share price $2.81 per share Closing price used on August 21, 2026 for RSU conversion and tax withholding

Restricted stock units held after transaction 31,000 units Direct RSU holdings reported following the August 21, 2026 exercise

RSU exercise date August 21, 2026 Date RSUs vested and were converted into common stock

Key Terms

Restricted Stock Units, Exercise or conversion of derivative security, Payment of tax liability by delivering or withholding securities

3 terms

Restricted Stock Units financial

"The reporting person received these shares of common stock due to the vesting and subsequent conversion of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Exercise or conversion of derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

Payment of tax liability by delivering or withholding securities financial

"transaction_code_description: Payment of tax liability by delivering or withholding securities"

FAQ

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

What insider transaction did USIO officer Frost Houston Korth report on this Form 4?

Frost Houston Korth reported the vesting and conversion of 6,000 restricted stock units into common stock of Usio, Inc. on August 21, 2026, along with a related tax withholding transaction involving the return of 1,630 shares to the issuer.

How many Usio (USIO) restricted stock units vested and converted in this Form 4?

A total of 6,000 restricted stock units vested on August 21, 2026 and were converted into 6,000 shares of common stock, pursuant to an award originally granted on August 21, 2025.

What price per share is referenced in Frost Houston Korth’s USIO Form 4 transactions?

The transactions reference a price of $2.81 per share on August 21, 2026, which is used for the RSU conversion reporting and for valuing the 1,630 shares returned to the issuer to cover taxes due.

How many Usio (USIO) restricted stock units does Frost Houston Korth hold after these transactions?

After the reported RSU exercise on August 21, 2026, the Form 4 states that Frost Houston Korth directly holds 31,000 restricted stock units of Usio, Inc.

Why were 1,630 USIO shares returned to the issuer in this Form 4?

The Form 4 footnote explains that 1,630 shares of Usio common stock were returned to the issuer at $2.81 per share on August 21, 2026 in order to cover taxes due on the vesting and conversion of restricted stock units.

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

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Available on EDGAR 08/25/2026 - 03:38 PM EDT Accepted by SEC EDGAR 08/25/2026 - 03:38 PM EDT 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^*

Frost Houston Korth

(Last) (First) (Middle)

3611 PAESANOS PARKWAY

SUITE 300

(Street)

SAN ANTONIO TEXAS 78231

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Usio, Inc. [ USIO ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Chief Product Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/21/2026

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	08/21/2026		M		6,000(1)	A	$2.81	781,108	D
Common Stock	08/21/2026		F		1,630(2)	D	$2.81	779,478	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
Restricted Stock Units	$0.0000	08/21/2026		M			6,000(1)	08/21/2026	08/21/2035	Restricted Stock Units	6,000(1)	$2.81	31,000	D

Explanation of Responses:

1. The reporting person received these shares of common stock due to the vesting and subsequent conversion of restricted stock units granted on August 21, 2025, and vested on August 21, 2026.

2. The reporting person returned 1,630 shares to the issuer at the closing price of 2.81 on August 21, 2026, to cover taxes due.

	/s/ Houston Frost	08/25/2026
	** 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)