INTRUSION INC

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Unregistered Sales of Equity Securities

Entry into a Material Definitive Agreement

Entry into a Material Definitive Agreement

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Additional Information for Proxy Statement/ Votes

Regulation FD Disclosure

Definitive Proxy Statement

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

Preliminary Proxy Statement

Entry into a Material Definitive Agreement

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

Entry into a Material Definitive Agreement

Annual report pursuant to Section 13 or 15(d)

Results of Operations and Financial Condition

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Submission of Matters to a Vote of Security Holders

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Definitive Proxy Statement

Entry into a Material Definitive Agreement

Termination of a Material Definitive Agreement

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Annual report pursuant to Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Unregistered Sales of Equity Securities

Entry into a Material Definitive Agreement

Prospectus Supplement for Primary Offering

Unregistered Sales of Equity Securities

Annual report pursuant to Section 13 or 15(d)

Notice of Effectiveness

Correspondence with the SEC

Registration statement under Securities Act of 1933 (amendment)

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 (amendment)

General form for quarterly reports under Section 13 or 15(d)

Letter from the SEC

Registration statement under Securities Act of 1933

General form for quarterly reports under Section 13 or 15(d)

Prospectus filed under Rule 424(b)(1)

Notice of Effectiveness

Correspondence with the SEC

Letter from the SEC

Registration (IPO) statement under Securities Act of 1933

Definitive Proxy Statement

Preliminary Proxy Statement

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d)

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Definitive Proxy Statement

Preliminary Proxy Statement

Correspondence with the SEC

Notice of Effectiveness

Amended Initial Registration Statement

Letter from the SEC

Registration (IPO) statement under Securities Act of 1933

General form for quarterly reports under Section 13 or 15(d)

Withdrawal of a registration statement

Amended Initial Registration Statement

Registration of Securities on Exchange

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

Preliminary Proxy Statement

Annual report pursuant to Section 13 or 15(d)

Correspondence with the SEC

Letter from the SEC

Definitive Proxy Statement

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Letter from the SEC

FILED AS OF DATE: 20051216

06

06

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Hinchcliffe Dion

Hinchcliffe Dion

Hinchcliffe Dion

LEVECCHIO ANTHONY J

MCCALLUM KATRINKA

Wilson Gregory K.

MCCALLUM KATRINKA

Scott Anthony

PINSON KIMBERLY

LEVECCHIO ANTHONY J

PINSON KIMBERLY

HEAD T JOE

Scott Anthony

MCCALLUM KATRINKA

Hinchcliffe Dion

Wilson Gregory K.

LEVECCHIO ANTHONY J

PINSON KIMBERLY

PINSON KIMBERLY