STOCK TITAN

Intrusion director adds 5,834 shares via warrants

INTRUSION INC (INTZ) reported that director Katrinka McCallum had two equity-related transactions involving company securities on 2026-08-26.

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

INTRUSION INC (INTZ) reported that director Katrinka McCallum had two equity-related transactions involving company securities on 2026-08-26. She received a warrant covering 5,834 shares of common stock at an exercise price of $0.67 per share, recorded at $0.125 per warrant share. On the same date, she exercised a warrant to acquire 5,834 shares of common stock at $0.795 per share, increasing her directly held common stock to 141,551 shares. According to the disclosure, the warrant exercise occurred in conjunction with a Warrant Inducement Letter dated 08/14/2026, under which one new warrant was granted in exchange for each warrant exercised.

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Insider MCCALLUM KATRINKA
Role Director
Type Security Shares Price Value
Grant/Award Warrant F2 5,834 $0.125 $729.25
Exercise Common Stock F1 5,834 $0.795 $5K
Holdings After Transaction: Warrant — 5,834 contracts (Direct); Common Stock — 141,551 shares (Direct)
Footnotes (2)
  1. F1. Common Stock acquired because of an exercise of a Warrant.
  2. F2. The Warrant was exercised in conjunction with a Warrant Inducement Letter dated 08/14/2026 where one Warrant was granted in exchange for one Warrant exercised.
Warrant shares granted 5,834 shares Warrant award to director on 2026-08-26
Warrant exercise price $0.67 per share Exercise price of warrant underlying 5,834 common shares
Recorded warrant value $0.125 per share Price field for warrant grant covering 5,834 shares
Common shares acquired via exercise 5,834 shares Common stock acquired through warrant exercise on 2026-08-26
Exercise price of common stock $0.795 per share Price for exercising warrant into common stock
Common shares held after transactions 141,551 shares Directly owned by Katrinka McCallum after 2026-08-26 exercise
Warrant financial
"Common Stock acquired because of an exercise of a Warrant."
A warrant is a time-limited financial contract that gives its holder the right to buy a company's shares at a set price before a specified date, like a coupon that lets you purchase stock at a fixed discount for a limited time. It matters to investors because warrants offer leveraged exposure to a stock’s upside and can dilute existing shareholders if exercised, so they affect potential gains and the company’s outstanding share count.
Warrant Inducement Letter financial
"The Warrant was exercised in conjunction with a Warrant Inducement Letter"
derivative security financial
"transaction_code_description":"Exercise or conversion of derivative security"
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

FAQ

What insider transactions did INTZ director Katrinka McCallum report on this Form 4?

She reported receiving a warrant for 5,834 shares of INTRUSION INC common stock and, on the same day, exercising a warrant for 5,834 common shares, both dated 2026-08-26, as described in the Form 4.

How many INTZ common shares does Katrinka McCallum hold after these transactions?

After the reported transactions, Katrinka McCallum directly holds 141,551 shares of INTRUSION INC common stock, according to the Form 4 disclosure.

What are the key terms of the warrant reported by INTZ for Katrinka McCallum?

The warrant covers 5,834 underlying common shares with an exercise price of $0.67 per share. It was recorded at a value of $0.125 per warrant share, as shown in the Form 4.

At what price did Katrinka McCallum exercise INTZ common stock on 2026-08-26?

She exercised a warrant to acquire 5,834 shares of INTRUSION INC common stock at an exercise price of $0.795 per share on 2026-08-26.

What is the Warrant Inducement Letter mentioned in the INTZ Form 4 footnote?

A footnote states that the warrant was exercised in conjunction with a Warrant Inducement Letter dated 08/14/2026, under which one warrant was granted in exchange for one warrant exercised.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED 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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/26/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock(1)08/26/2026M5,834A$0.795141,551D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Warrant$0.6708/26/2026A5,834 (2) (2)Common Stock5,834$0.1255,834D
Explanation of Responses:
1. Common Stock acquired because of an exercise of a Warrant.
2. The Warrant was exercised in conjunction with a Warrant Inducement Letter dated 08/14/2026 where one Warrant was granted in exchange for one Warrant exercised.
/s/ Katrinka McCallam08/26/2026
** Signature of Reporting PersonDate
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)