INTRUSION INC SEC EDGAR Filings (CIK 0000736012)

SEC EDGAR filings, ownership reports, and insider transactions for INTRUSION INC.

Symbol
INTZ on Nasdaq
Industry
Computer Communications Equipment (Office Of Technology)
Business address
101 East Park Blvd, Suite 1200, Plano, TX, 75074
State of incorporation
DE
Fiscal year end
31 December
Former names
INTRUSION COM INC (to 21 Mar 2001), ODS NETWORKS INC (to 10 Mar 2000), OPTICAL DATA SYSTEMS INC (to 10 Apr 1997)
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INTRUSION INC has filed 861 SEC EDGAR filings since 28 Jun 1996

Latest Filings

Recent SEC filings for INTRUSION INC including 4, 10-Q, 8-K and more.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 12 Jan 2026 31 Dec 2025
4 Open 4 document View SEC filing for 4 12 Jan 2026 31 Dec 2025
4 Open 4 document View SEC filing for 4 04 Dec 2025 02 Dec 2025
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q FOR SEPT 2025 12 Nov 2025 30 Sep 2025 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 12 Nov 2025 11 Nov 2025 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 25 Aug 2025 19 Aug 2025 001-39608
4 Open 4 document View SEC filing for 4 21 Aug 2025 19 Aug 2025
4 Open 4 document View SEC filing for 4 21 Aug 2025 19 Aug 2025
4 Open 4 document View SEC filing for 4 21 Aug 2025 19 Aug 2025
4 Open 4 document View SEC filing for 4 21 Aug 2025 19 Aug 2025
4 Open 4 document View SEC filing for 4 19 Aug 2025 15 Aug 2025
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q FOR JUN 2025 12 Aug 2025 30 Jun 2025 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 12 Aug 2025 12 Aug 2025 001-39608
4 Open 4 document View SEC filing for 4 02 Jul 2025 30 Jun 2025
4 Open 4 document View SEC filing for 4 02 Jul 2025 30 Jun 2025
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A DEFINITIVE PROXY 02 Jul 2025 18 Aug 2025 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 12 Jun 2025 12 Jun 2025 001-39608
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS 12 Jun 2025 333-281565
424B3 Open 424B3 document View SEC filing for 424B3 PROSPECTUS 12 Jun 2025 333-281565
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 12 Jun 2025 06 Jun 2025 001-39608
4 Open 4 document View SEC filing for 4 07 May 2025 04 Feb 2025
4 Open 4 document View SEC filing for 4 07 May 2025 24 Mar 2025
10-K/A Open 10-K/A document | Open XBRL data View SEC filing for 10-K/A FORM 10-K/A FOR 2024 30 Apr 2025 31 Dec 2024 001-39608
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q FOR MAR 2025 29 Apr 2025 31 Mar 2025 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 29 Apr 2025 29 Apr 2025 001-39608
4 Open 4 document View SEC filing for 4 28 Apr 2025 27 Aug 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 21 Mar 2025 17 Mar 2025 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 17 Mar 2025 13 Mar 2025 001-39608
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS SUPPLEMENT 17 Mar 2025 333-281565
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 11 Mar 2025 11 Mar 2025 001-39608
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K FOR DEC 2024 27 Feb 2025 31 Dec 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 27 Feb 2025 27 Feb 2025 001-39608
EFFECT Open EFFECT document View SEC filing for EFFECT 10 Feb 2025 333-281565
CORRESP Open CORRESP document View SEC filing for CORRESP 06 Feb 2025
S-3/A Open S-3/A document | Open XBRL data View SEC filing for S-3/A AMENDMENT NO 2. 31 Jan 2025 333-281565
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 30 Jan 2025 29 Jan 2025 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 15 Jan 2025 15 Jan 2025 001-39608
4/A Open 4/A document View SEC filing for 4/A 13 Jan 2025 28 Jun 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 07 Jan 2025 06 Jan 2025 001-39608
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS SUPPLEMENT 07 Jan 2025 333-258491
4 Open 4 document View SEC filing for 4 06 Jan 2025 28 Jun 2024
4 Open 4 document View SEC filing for 4 06 Jan 2025 28 Jun 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 03 Jan 2025 30 Dec 2024 001-39608
4 Open 4 document View SEC filing for 4 02 Jan 2025 27 Dec 2024
4 Open 4 document View SEC filing for 4 02 Jan 2025 27 Dec 2024
4 Open 4 document View SEC filing for 4 02 Jan 2025 27 Dec 2024
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 27 Dec 2024 005-49215
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 20 Dec 2024 17 Dec 2024 001-39608
S-3/A Open S-3/A document | Open XBRL data View SEC filing for S-3/A AMENDMENT TO FORM S-3 17 Dec 2024 333-281565
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 27 Nov 2024 21 Nov 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 22 Nov 2024 18 Nov 2024 001-39608
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q FOR SEPT 2024 13 Nov 2024 30 Sep 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 12 Nov 2024 12 Nov 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 12 Nov 2024 11 Nov 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 29 Oct 2024 28 Oct 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 08 Oct 2024 08 Oct 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 26 Sep 2024 26 Sep 2024 001-39608
4 Open 4 document View SEC filing for 4 19 Sep 2024 18 Sep 2024
3 Open 3 document View SEC filing for 3 16 Sep 2024 27 Aug 2024
4 Open 4 document View SEC filing for 4 13 Sep 2024 12 Sep 2024
4 Open 4 document View SEC filing for 4 13 Sep 2024 11 Sep 2024
4 Open 4 document View SEC filing for 4 13 Sep 2024 12 Sep 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 03 Sep 2024 27 Aug 2024 001-39608
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 20 Aug 2024 333-281565
S-3 Open S-3 document | Open XBRL data View SEC filing for S-3 S-3 15 Aug 2024 333-281565
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q FOR JUNE 2024 14 Aug 2024 30 Jun 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 13 Aug 2024 13 Aug 2024 001-39608
424B1 Open 424B1 document View SEC filing for 424B1 FORM 424B1 30 Jul 2024 333-280914
EFFECT Open EFFECT document View SEC filing for EFFECT 29 Jul 2024 333-280914
CORRESP Open CORRESP document View SEC filing for CORRESP 25 Jul 2024
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 24 Jul 2024 333-280914
S-1 Open S-1 document | Open XBRL data View SEC filing for S-1 S-1 19 Jul 2024 333-280914
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A FORM DEF 14A 15 Jul 2024 27 Aug 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 10 Jul 2024 03 Jul 2024 001-39608
PRE 14A Open PRE 14A document | Open XBRL data View SEC filing for PRE 14A PRELIMINARY PROXY 05 Jul 2024 27 Aug 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 01 Jul 2024 01 Jul 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 05 Jun 2024 30 May 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 16 May 2024 10 May 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 15 May 2024 09 May 2024 001-39608
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q FOR MARCH 2024 15 May 2024 31 Mar 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 14 May 2024 14 May 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 02 May 2024 01 May 2024 001-39608
4 Open 4 document View SEC filing for 4 25 Apr 2024 22 Apr 2024
4 Open 4 document View SEC filing for 4 25 Apr 2024 22 Apr 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 23 Apr 2024 22 Apr 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 12 Apr 2024 08 Apr 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 05 Apr 2024 01 Apr 2024 001-39608
4 Open 4 document View SEC filing for 4 04 Apr 2024 02 Apr 2024
4 Open 4 document View SEC filing for 4 04 Apr 2024 02 Apr 2024
4 Open 4 document View SEC filing for 4 04 Apr 2024 04 Apr 2024
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K FOR 12-31-23 01 Apr 2024 31 Dec 2023 001-39608
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A AMENDMENT NO 1 28 Mar 2024 21 Mar 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 27 Mar 2024 21 Mar 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 26 Mar 2024 26 Mar 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 22 Mar 2024 11 Mar 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 18 Mar 2024 15 Mar 2024 001-39608
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS 14 Mar 2024 333-275974
424B5 Open 424B5 document View SEC filing for 424B5 FORM 424B5 13 Mar 2024 333-258491
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 13 Mar 2024 07 Mar 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 06 Mar 2024 04 Mar 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 21 Feb 2024 08 Feb 2024 001-39608
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 20 Feb 2024 005-49215
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDMENT #3 TO FORM SC 13G 13 Feb 2024 005-49215
S-8 Open S-8 document View SEC filing for S-8 FORM S-8 09 Feb 2024 333-276972
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 05 Feb 2024 005-49215
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 31 Jan 2024 31 Jan 2024 001-39608
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 25 Jan 2024 25 Jan 2024 001-39608
4 Open 4 document View SEC filing for 4 24 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 24 Jan 2024 31 Dec 2023
PRE 14A Open PRE 14A document View SEC filing for PRE 14A PRE 14A 12 Jan 2024 15 Mar 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 09 Jan 2024 28 Sep 2023 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 04 Jan 2024 02 Jan 2024 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 22 Dec 2023 19 Dec 2023 001-39608
EFFECT Open EFFECT document View SEC filing for EFFECT 21 Dec 2023 333-275974
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 21 Dec 2023 18 Dec 2023 001-39608
CORRESP Open CORRESP document View SEC filing for CORRESP 21 Dec 2023
S-1/A Open S-1/A document View SEC filing for S-1/A AMENDMENT #1 TO FORM S-1 20 Dec 2023 333-275974
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 15 Dec 2023
S-1 Open S-1 document View SEC filing for S-1 S-1 11 Dec 2023 333-275974
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 14 Nov 2023 30 Sep 2023 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 14 Nov 2023 14 Nov 2023 001-39608
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Nov 2023 08 Nov 2023
4 Open 4 document View SEC filing for 4 09 Nov 2023 08 Nov 2023
4 Open 4 document View SEC filing for 4 09 Nov 2023 08 Nov 2023
4 Open 4 document View SEC filing for 4 09 Nov 2023 08 Nov 2023
4 Open 4 document View SEC filing for 4 09 Nov 2023 08 Nov 2023
4 Open 4 document View SEC filing for 4 09 Nov 2023 08 Nov 2023
4 Open 4 document View SEC filing for 4 09 Nov 2023 08 Nov 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 09 Nov 2023 08 Nov 2023 001-39608
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Nov 2023 02 Nov 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 27 Oct 2023 26 Oct 2023 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 17 Oct 2023 11 Oct 2023 001-39608
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Oct 2023 28 Sep 2023
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 13 Oct 2023 28 Sep 2023
SC 13G Open SC 13G document View SEC filing for SC 13G 12 Oct 2023 005-49215
RW Open RW document View SEC filing for RW REQUEST FOR WITHDRAWAL 10 Oct 2023 333-273930
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 10 Oct 2023 10 Oct 2023 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 02 Oct 2023 26 Sep 2023 001-39608
S-1/A Open S-1/A document | Open XBRL data View SEC filing for S-1/A AMENDMENT NO. 2 18 Sep 2023 333-273930
8-A12B Open 8-A12B document View SEC filing for 8-A12B FORM 11 Sep 2023 001-39608
FWP Open FWP document View SEC filing for FWP FREE WRITING PROSPECTUSES 28 Aug 2023 333-273930
S-1/A Open S-1/A document | Open XBRL data View SEC filing for S-1/A AMENDMENT NO. 1 25 Aug 2023 333-273930
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 14 Aug 2023 14 Aug 2023 001-39608
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 14 Aug 2023 30 Jun 2023 001-39608
S-1 Open S-1 document | Open XBRL data View SEC filing for S-1 S-1 11 Aug 2023 333-273930
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 07 Aug 2023 07 Aug 2023 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 20 Jul 2023 17 Jul 2023 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 25 May 2023 19 May 2023 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 22 May 2023 16 May 2023 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 22 May 2023 16 May 2023 001-39608
4 Open 4 document View SEC filing for 4 19 May 2023 16 May 2023
4 Open 4 document View SEC filing for 4 19 May 2023 16 May 2023
4 Open 4 document View SEC filing for 4 19 May 2023 16 May 2023
4 Open 4 document View SEC filing for 4 19 May 2023 16 May 2023
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 15 May 2023 31 Mar 2023 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 11 May 2023 11 May 2023 001-39608
4 Open 4 document View SEC filing for 4 03 May 2023 01 May 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 02 May 2023 28 Apr 2023 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 02 May 2023 01 May 2023 001-39608
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEFINITIVE PROXY STATEMENT 14 Apr 2023 16 May 2023 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 11 Apr 2023 06 Apr 2023 001-39608
424B5 Open 424B5 document View SEC filing for 424B5 FORM 424B5 11 Apr 2023 333-258491
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 31 Mar 2023 14 Mar 2023 001-39608
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 31 Mar 2023 31 Dec 2022 001-39608
4 Open 4 document View SEC filing for 4 27 Mar 2023 21 Mar 2023
4 Open 4 document View SEC filing for 4 27 Mar 2023 21 Mar 2023
4 Open 4 document View SEC filing for 4 27 Mar 2023 21 Mar 2023
4 Open 4 document View SEC filing for 4 27 Mar 2023 21 Mar 2023
4 Open 4 document View SEC filing for 4 27 Mar 2023 21 Mar 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 16 Mar 2023 14 Mar 2023 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 06 Mar 2023 06 Mar 2023 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 01 Mar 2023 23 Feb 2023 001-39608
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G AMENDMENT 09 Feb 2023 005-49215
4 Open 4 document View SEC filing for 4 08 Feb 2023 06 Feb 2023
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 08 Feb 2023 005-49215
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 17 Jan 2023 11 Jan 2023 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 21 Dec 2022 16 Dec 2022 001-39608
4 Open 4 document View SEC filing for 4 02 Dec 2022 30 Nov 2022
4 Open 4 document View SEC filing for 4 30 Nov 2022 10 Nov 2022
4 Open 4 document View SEC filing for 4 30 Nov 2022 10 Nov 2022
4 Open 4 document View SEC filing for 4 30 Nov 2022 06 Nov 2022
4 Open 4 document View SEC filing for 4 30 Nov 2022 10 Nov 2022
4 Open 4 document View SEC filing for 4 22 Nov 2022 21 Nov 2022
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 14 Nov 2022 30 Sep 2022 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 03 Nov 2022 03 Nov 2022 001-39608
424B5 Open 424B5 document View SEC filing for 424B5 FORM 424(B)(5) 14 Sep 2022 333-258491
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Sep 2022 12 Sep 2022 001-39608
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 04 Aug 2022 30 Jun 2022 001-39608
424B5 Open 424B5 document View SEC filing for 424B5 424B5 04 Aug 2022 333-258491
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 04 Aug 2022 04 Aug 2022 001-39608
3 Open 3 document View SEC filing for 3 25 Jul 2022 27 Jun 2022
3 Open 3 document View SEC filing for 3 25 Jul 2022 28 Mar 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 29 Jun 2022 23 Jun 2022 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 27 Jun 2022 27 Jun 2022 001-39608
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A FORM 8-K AMENDMENT 1 22 Jun 2022 08 Jun 2022 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 10 Jun 2022 08 Jun 2022 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 27 May 2022 24 May 2022 001-39608
4 Open 4 document View SEC filing for 4 26 May 2022 24 May 2022
4 Open 4 document View SEC filing for 4 26 May 2022 24 May 2022
4 Open 4 document View SEC filing for 4 26 May 2022 24 May 2022
4 Open 4 document View SEC filing for 4 26 May 2022 24 May 2022
4 Open 4 document View SEC filing for 4 26 May 2022 24 May 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 17 May 2022 16 May 2022 001-39608
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 13 May 2022 31 Mar 2022 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 12 May 2022 12 May 2022 001-39608
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEFINITIVE PROXY STATEMENT 18 Apr 2022 24 May 2022 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 13 Apr 2022 05 Apr 2022 001-39608
PRE 14A Open PRE 14A document View SEC filing for PRE 14A PRELIMINARY PROXY STATEMENT 05 Apr 2022 24 May 2022 001-39608
3 Open 3 document View SEC filing for 3 04 Apr 2022 28 Mar 2022
4 Open 4 document View SEC filing for 4 04 Apr 2022 06 Nov 2021
4 Open 4 document View SEC filing for 4 04 Apr 2022 01 Feb 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 01 Apr 2022 28 Mar 2022 001-39608
424B5 Open 424B5 document View SEC filing for 424B5 424B5 28 Mar 2022 333-258491
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 18 Mar 2022 31 Dec 2021 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 17 Mar 2022 17 Mar 2022 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 10 Mar 2022 10 Mar 2022 001-39608
4 Open 4 document View SEC filing for 4 18 Feb 2022 06 Nov 2021
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Feb 2022 005-49215
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G AMENDMENT 09 Feb 2022 005-49215
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G AMENDMENT 09 Feb 2022 005-49215
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G AMENDMENT 09 Feb 2022 005-49215
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 26 Jan 2022 21 Jan 2022 001-39608
SC 13G Open SC 13G document View SEC filing for SC 13G INTRUSION INC 24 Jan 2022 005-49215
3/A Open 3/A document View SEC filing for 3/A 09 Dec 2021 11 Nov 2021
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A AMENDMENT TO CURRENT REPORT 09 Dec 2021 11 Nov 2021 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 17 Nov 2021 11 Nov 2021 001-39608
3 Open 3 document View SEC filing for 3 16 Nov 2021 11 Nov 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 12 Nov 2021 11 Nov 2021 001-39608
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 12 Nov 2021 30 Sep 2021 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 26 Aug 2021 26 Aug 2021 001-39608
424B2 Open 424B2 document View SEC filing for 424B2 PROSPECTUS SUPPLEMENT 17 Aug 2021 333-258491
EFFECT Open EFFECT document View SEC filing for EFFECT 16 Aug 2021 333-258491
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q FOR JUNE 30, 2021 13 Aug 2021 30 Jun 2021 001-39608
CORRESP Open CORRESP document View SEC filing for CORRESP 12 Aug 2021
S-3/A Open S-3/A document View SEC filing for S-3/A AMENDMENT NO. 1 TO FORM S-3 12 Aug 2021 333-258491
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 12 Aug 2021 12 Aug 2021 001-39608
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 12 Aug 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 11 Aug 2021 05 Aug 2021 001-39608
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 09 Aug 2021 03 Aug 2021 001-39608
S-3 Open S-3 document View SEC filing for S-3 FORM S-3 05 Aug 2021 333-258491
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 23 Jul 2021 19 Jul 2021 001-39608
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 24 May 2021 18 May 2021 001-39608
3 Open 3 document View SEC filing for 3 21 May 2021 18 May 2021
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8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 11 May 2011 11 May 2011 000-20191
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEFINITIVE PROXY STATEMENT 05 Apr 2011 19 May 2011 000-20191
10-K Open 10-K document View SEC filing for 10-K ANNUAL REPORT PURSUANT TO SECTION 13 AND 15(D) 29 Mar 2011 31 Dec 2010 000-20191
SC 13G Open SC 13G document View SEC filing for SC 13G 13G INTRUSION DECEMBER 31, 2010 14 Feb 2011 005-49215
8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 09 Feb 2011 09 Feb 2011 000-20191
4 Open 4 document View SEC filing for 4 FORM 4 - 07 Feb 2011 03 Feb 2011
4 Open 4 document View SEC filing for 4 FORM 4 - 07 Feb 2011 03 Feb 2011
4 Open 4 document View SEC filing for 4 FORM 4 - 07 Feb 2011 03 Feb 2011
4 Open 4 document View SEC filing for 4 FORM 4 - 07 Feb 2011 03 Feb 2011
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 12 Nov 2010 005-49215
10-Q Open 10-Q document View SEC filing for 10-Q QUARTERLY REPORT PURSUANT TO SECTIONS 13 OR 15(D) 10 Nov 2010 30 Sep 2010 000-20191
8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 10 Nov 2010 10 Nov 2010 000-20191
10-Q Open 10-Q document View SEC filing for 10-Q QUARTERLY REPORT PURSUANT TO SECTIONS 13 OR 15(D) 12 Aug 2010 30 Jun 2010 000-20191
8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 12 Aug 2010 12 Aug 2010 000-20191
S-8 Open S-8 document View SEC filing for S-8 SECURITIES TO BE OFFERED TO EMPLOYEES PURSUANT TO EMPLOYEE BENEFIT PLANS 16 Jun 2010 333-167577
8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 15 Jun 2010 20 May 2010 000-20191
4 Open 4 document View SEC filing for 4 FORM 4 - 20 May 2010 20 May 2010
4 Open 4 document View SEC filing for 4 FORM 4 - 20 May 2010 20 May 2010
4 Open 4 document View SEC filing for 4 FORM 4 - 20 May 2010 20 May 2010
10-Q Open 10-Q document View SEC filing for 10-Q QUARTERLY REPORT PURSUANT TO SECTIONS 13 OR 15(D) 13 May 2010 31 Mar 2010 000-20191
8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 13 May 2010 13 May 2010 000-20191
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEFINITIVE PROXY STATEMENT 05 Apr 2010 20 May 2010 000-20191
10-K Open 10-K document View SEC filing for 10-K ANNUAL REPORT PURSUANT TO SECTION 13 AND 15(D) 29 Mar 2010 31 Dec 2009 000-20191
3 Open 3 document View SEC filing for 3 FORM 3 - 22 Mar 2010 04 Jan 2010
3 Open 3 document View SEC filing for 3 FORM 3 - 22 Mar 2010 04 Jan 2010
SC 13G Open SC 13G document View SEC filing for SC 13G BENEFICIAL OWNERSHIP OF 5% OR MORE 22 Mar 2010 005-49215
SC 13G Open SC 13G document View SEC filing for SC 13G BENEFICIAL OWNERSHIP OF 5% OR MORE 22 Mar 2010 005-49215
4 Open 4 document View SEC filing for 4 FORM 4 - 26 Feb 2010 04 Feb 2010
4 Open 4 document View SEC filing for 4 FORM 4 - 26 Feb 2010 04 Feb 2010
4 Open 4 document View SEC filing for 4 FORM 4 - 26 Feb 2010 04 Feb 2010
4 Open 4 document View SEC filing for 4 FORM 4 - 26 Feb 2010 04 Feb 2010
SC 13G Open SC 13G document View SEC filing for SC 13G 13G INTZ DECEMBER 31, 2009 17 Feb 2010 005-49215
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 12 Feb 2010 005-49215
8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 10 Feb 2010 10 Feb 2010 000-20191
SC 13D Open SC 13D document View SEC filing for SC 13D BENEFICIAL OWNERSHIP OF 5% OR MORE 08 Jan 2010 005-49215
SC 13D Open SC 13D document View SEC filing for SC 13D BENEFICIAL OWNERSHIP OF 5% OR MORE 08 Jan 2010 005-49215
4 Open 4 document View SEC filing for 4 FORM 4 - 05 Jan 2010 04 Jan 2010
4 Open 4 document View SEC filing for 4 FORM 4 - 05 Jan 2010 04 Jan 2010

About this filer

INTRUSION INC files with the SEC under CIK 0000736012. This page aggregates EDGAR filings and related ownership activity.

Industry: Computer Communications Equipment.

See insider transactions for this issuer.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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