Intrusion awards director 86K stock units at $0.81

Intrusion director Katrinka McCallum received 86,420 restricted stock units that vest after one year, increasing her direct holdings to 227,971 shares.

Rhea-AI Filing Summary

INTRUSION INC (symbol: INTZ) is the issuer of record for a Form 4 filing submitted to the SEC. MCCALLUM KATRINKA reported acquisition or exercise transactions in this Form 4 filing.

INTRUSION INC (INTZ) reported that director Katrinka McCallum received a grant of 86,420 restricted stock units of common stock on August 27, 2026, at a reference value of $0.81 per share under the 2021 Intrusion, Inc. Omnibus Incentive Plan. These restricted stock units fully vest on the anniversary of the award date, and following the grant she holds 227,971 shares of common stock directly.

Insider Trade Summary

Grant/Award: 86,420 shares

Grant/Award 1 txn

Insider MCCALLUM KATRINKA

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	86,420	$0.81	$70K

Holdings After Transaction: Common Stock — 227,971 shares (Direct)

Footnotes (1)

1. F1. Restricted stock units awarded to the reporting person pursuant to the 2021 Intrusion, Inc Omnibus Incentive Plan as part of the Compensation Plan for non-employee directors. Restricted stock units fully vest on the anniversary of the award date.

Key Figures

Restricted stock units granted: 86,420 shares Grant value per share: $0.81 per share Shares held after transaction: 227,971 shares

3 metrics

Restricted stock units granted 86,420 shares Grant to director on August 27, 2026

Grant value per share $0.81 per share Reference value for the 86,420-share restricted stock unit award

Shares held after transaction 227,971 shares Director’s direct holdings following the August 27, 2026 grant

Key Terms

Restricted stock units, Omnibus Incentive Plan, Compensation Plan for non-employee directors

3 terms

Restricted stock units financial

"Restricted stock units awarded to the reporting person pursuant to the 2021"

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.

Omnibus Incentive Plan financial

"pursuant to the 2021 Intrusion, Inc Omnibus Incentive Plan as part"

An omnibus incentive plan is a single, flexible program a company uses to give employees and executives different types of pay tied to performance — for example stock options, restricted shares, cash bonuses and other awards — all governed by one set of rules. It matters to investors because it determines how many new shares may be created, how leaders are motivated and how much the company will spend on compensation over time; think of it as a master toolbox that affects both costs and the total share supply.

Compensation Plan for non-employee directors financial

"as part of the Compensation Plan for non-employee directors. Restricted"

FAQ

What insider transaction did INTRUSION INC (INTZ) report for Katrinka McCallum?

INTRUSION INC reported that director Katrinka McCallum received a grant of 86,420 restricted stock units of common stock on August 27, 2026, as part of the Compensation Plan for non-employee directors under the 2021 Intrusion, Inc. Omnibus Incentive Plan.

At what value were the restricted stock units granted to the INTRUSION INC (INTZ) director?

The restricted stock units granted to the director were assigned a value of $0.81 per share for the 86,420-share award of common stock reported on August 27, 2026.

When do the newly granted restricted stock units for INTZ’s director vest?

The filing states that the restricted stock units fully vest on the anniversary of the award date, meaning one year after the August 27, 2026 grant, subject to the plan’s terms.

How many INTRUSION INC (INTZ) shares does Katrinka McCallum hold after this transaction?

After the grant, Katrinka McCallum is reported to hold 227,971 shares of INTRUSION INC common stock directly.

Was the INTRUSION INC (INTZ) director’s grant made under a Rule 10b5-1 trading plan?

No. The Form 4 indicates the document-level Rule 10b5-1 checkbox is not checked, and the footnote describes the award as part of the Compensation Plan for non-employee directors rather than under a Rule 10b5-1 trading plan.

What plan governs the restricted stock unit grant reported by INTRUSION INC (INTZ)?

The restricted stock unit grant was awarded under the 2021 Intrusion, Inc Omnibus Incentive Plan as part of the Compensation Plan for non-employee directors.

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

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Available on EDGAR 09/02/2026 - 07:24 PM Accepted by SEC EDGAR 09/02/2026 - 07:24 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^*

MCCALLUM KATRINKA

(Last) (First) (Middle)

C/O INTRUSION, INC.

101 EAST PARK BLVD, SUITE 1200

(Street)

PLANO TEXAS 75074

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
INTRUSION INC [ INTZ ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/27/2026

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(1)	08/27/2026		A		86,420	A	$0.81	227,971	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:

1. Restricted stock units awarded to the reporting person pursuant to the 2021 Intrusion, Inc Omnibus Incentive Plan as part of the Compensation Plan for non-employee directors. Restricted stock units fully vest on the anniversary of the award date.

	/s/ Katrinka McCallum	09/02/2026
	** 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)