Intrusion Inc INTZ

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Intrusion Inc. - Common Stock · Company · Nasdaq · Technology / Software - Infrastructure

Paper trade (simulated — no real money)

Fill: USD 0.5790 · FX 1 USD = 1.277900 SGD · about SGD 0.7399 per unit

Sign in to practise with simulated trades before investing real money. USD fills are converted into the SGD portfolio at the displayed rate.

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 1.89 → 0.58 · -69.4%
1.9101.2250.540 1,2 3 4 5 6 7,8 9 10 11 12 13 14,15 16 17 18 19 Oct 25Jan 26Apr 26Jul 26Oct 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 24 Oct 2025 — 25 Oct 2026 (Last year)

Daily Nasdaq prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

Weekend
Weekend
0.5300 0.5799 0.5300 0.5790 88,652
0.5700 0.6000 0.5200 0.5400 94,900
0.6100 0.6300 0.5000 0.5600 122,100
0.6100 0.6300 0.6100 0.6100 17,200
0.6200 0.6300 0.6100 0.6100 34,900
Weekend
Weekend
0.6300 0.6500 0.6200 0.6300 41,900
0.6400 0.6500 0.6200 0.6300 37,700
0.6400 0.6800 0.6300 0.6500 50,600
0.6400 0.6600 0.6400 0.6500 21,300
0.6800 0.6800 0.6300 0.6400 48,200
Weekend
Weekend
0.6900 0.7100 0.6300 0.6600 153,200
0.7100 0.7100 0.6800 0.6800 47,900
0.7300 0.7400 0.6900 0.7000 33,000
0.6900 0.7100 0.6900 0.7100 48,300
0.7100 0.7400 0.6900 0.6900 38,000
Weekend
Weekend
0.7100 0.7300 0.7000 0.7200 73,300
0.7200 0.7200 0.7100 0.7100 19,900
0.7100 0.7700 0.7000 0.7200 74,800
0.6600 0.7600 0.6600 0.7300 114,900
0.7100 0.7200 0.6700 0.6700 80,700
Weekend
Weekend
0.7200 0.7500 0.7000 0.7100 34,700
0.7600 0.7600 0.7200 0.7300 36,100
0.7600 0.8000 0.7200 0.7600 65,800
0.7600 0.7900 0.7000 0.7500 146,400
0.7000 0.8000 0.6800 0.7500 313,000
Weekend
Weekend
0.7500 0.8000 0.6100 0.6100 322,900
0.7400 0.7800 0.7300 0.7600 65,200
0.7800 0.8000 0.7500 0.7700 42,700
0.8600 0.8600 0.8000 0.8000 46,200
19 · 8-K Pre-market · 08:14 ET FORM 8-K ↗
0.8200 0.9400 0.8100 0.8900 126,200
Weekend
Weekend
0.8000 0.8500 0.7900 0.8500 59,400
0.8300 0.8300 0.8000 0.8200 61,900
0.8300 0.8500 0.8000 0.8400 95,400
0.7800 0.8500 0.7500 0.8500 176,800
No trading
Weekend
Weekend
0.8100 0.8100 0.7600 0.7800 126,200
18 · 8-K After-hours · 16:05 ET CURRENT REPORT ↗
0.8300 0.8700 0.8000 0.8300 218,000
0.8300 0.8800 0.8200 0.8600 131,500
0.9000 0.9000 0.8000 0.8600 176,700
0.7800 0.9300 0.7500 0.9000 588,800
Weekend
Weekend
17 · 8-K After market open · 10:01 ET CURRENT REPORT ↗
0.8200 0.8800 0.7600 0.7900 835,100
0.7200 0.8500 0.6900 0.8100 1,199,500
0.6100 0.7000 0.6000 0.6900 216,900
0.6200 0.6500 0.5900 0.6000 329,600
0.6500 0.6600 0.6200 0.6200 182,000
Weekend
Weekend
0.6300 0.6500 0.6300 0.6400 186,400
0.6600 0.6600 0.6300 0.6400 123,200
0.6300 0.6700 0.6200 0.6300 74,400
16 · 8-K After-hours · 16:05 ET CURRENT REPORT ↗
0.6400 0.6700 0.6300 0.6300 134,400
0.6700 0.6800 0.6400 0.6500 198,000
Weekend
Weekend
0.6600 0.6800 0.6600 0.6700 147,100
0.6600 0.6800 0.6600 0.6700 310,000
0.7000 0.7100 0.6500 0.6600 443,700
15 · 10-Q After-hours · 17:00 ET FORM 10-Q FOR JUN 2026 ↗ 14 · 8-K After-hours · 16:05 ET CURRENT REPORT ↗
0.7200 0.8200 0.7200 0.8200 305,900
0.7500 0.7600 0.7100 0.7600 194,900
Weekend
Weekend
0.7500 0.7700 0.7500 0.7600 201,700
0.7600 0.7900 0.7500 0.7600 93,600
0.7700 0.8000 0.7600 0.7700 89,800
0.7600 0.7800 0.7600 0.7700 202,100
0.7600 0.8000 0.7500 0.7700 167,500
13 · DEFA14A Pre-market · 09:00 ET DEFINITIVE ADDITIONAL MATERIALS ↗
Weekend
Weekend
0.7800 0.7900 0.7500 0.7700 252,600
0.7300 0.7900 0.7300 0.7900 288,100
0.7800 0.7800 0.7300 0.7600 160,500
0.7400 0.7800 0.7200 0.7800 270,200
0.7500 0.7700 0.7400 0.7500 364,900
Weekend
Weekend
0.7700 0.7700 0.7400 0.7500 225,900
0.8200 0.8200 0.7400 0.7500 165,700
0.8600 0.8800 0.8000 0.8100 317,100
12 · 8-K Next filing day · accepted 21 Jul, 18:20 ET CURRENT REPORT ↗
0.8700 0.9000 0.8500 0.8600 147,900
0.9100 0.9200 0.8500 0.9200 151,200
11 · DEF 14A Pre-market · 09:15 ET FORM DEF 14A ↗
Weekend
Weekend
0.9100 0.9200 0.9100 0.9200 291,900
0.9100 0.9200 0.8800 0.9100 130,800
0.9100 0.9800 0.8700 0.9100 382,100
0.9800 1.0300 0.9100 0.9300 458,400
0.9400 1.0700 0.8600 1.0200 1,314,800
Weekend
Weekend
0.8700 0.9400 0.8500 0.9400 586,300
0.9000 0.9100 0.8400 0.8700 621,300
10 · PRE 14A After-hours · 16:56 ET PRE 14A ↗
0.8700 0.9300 0.8500 0.9000 736,600
0.8000 0.9300 0.8000 0.8700 1,054,800
0.7700 0.8500 0.7600 0.8100 565,500
Weekend
Weekend
No trading
0.7600 0.8500 0.7300 0.8000 1,445,500
0.9000 0.9000 0.7000 0.8200 4,117,700
9 · 8-K After-hours · 16:05 ET CURRENT REPORT ↗
0.9200 1.0800 0.8500 0.9300 106,060,600
0.6800 0.7000 0.6700 0.6800 37,200
Weekend
Weekend
0.6800 0.7100 0.6600 0.6600 74,400
0.6900 0.7300 0.6800 0.6900 161,600
0.7100 0.7200 0.6800 0.6800 153,100
0.7100 0.7300 0.7000 0.7100 66,600
0.7200 0.7400 0.7100 0.7100 91,800
Weekend
Weekend
No trading
0.8200 0.8200 0.7000 0.7000 287,900
0.7700 0.8300 0.7700 0.8100 70,200
0.8200 0.8200 0.7600 0.7600 152,600
0.8000 0.8700 0.8000 0.8400 209,400
Weekend
Weekend
0.7100 0.8100 0.7100 0.7500 158,600
0.7300 0.7500 0.7100 0.7300 50,500
0.6900 0.7500 0.6800 0.7300 136,400
0.7300 0.7700 0.6900 0.6900 153,300
0.7700 0.7800 0.7200 0.7300 84,100
Weekend
Weekend
0.7800 0.7800 0.7200 0.7700 242,500
0.7700 0.8100 0.7600 0.7900 100,200
0.8400 0.8500 0.7600 0.7900 163,200
0.7900 0.9000 0.7800 0.8400 460,900
0.8100 0.8300 0.7600 0.7800 154,700
Weekend
Weekend
0.8000 0.8300 0.7900 0.8300 117,700
0.7900 0.8300 0.7800 0.8100 81,100
0.8400 0.8500 0.7900 0.7900 76,300
0.8200 0.8600 0.8100 0.8500 55,100
No trading
Weekend
Weekend
0.7900 0.8200 0.7500 0.8100 97,800
0.7400 0.8000 0.7300 0.7900 240,000
0.7200 0.7600 0.7200 0.7400 45,300
0.7000 0.7500 0.6900 0.7300 109,400
0.7400 0.7400 0.7200 0.7200 112,000
Weekend
Weekend
0.7200 0.7400 0.7100 0.7400 127,200
8 · 10-Q After-hours · 17:00 ET FORM 10-Q FOR MAR 2026 ↗ 7 · 8-K After-hours · 16:06 ET FORM 8 -K ↗
0.7500 0.8000 0.7400 0.7800 293,400
0.7300 0.7800 0.7300 0.7600 310,800
6 · 8-K Pre-market · 07:27 ET FORM 8-K ↗
0.7500 0.7700 0.7400 0.7400 43,500
0.7700 0.8000 0.7400 0.7500 101,200
Weekend
Weekend
0.8100 0.8100 0.7700 0.7700 68,600
0.7900 0.8300 0.7800 0.8000 104,000
0.7700 0.8000 0.7400 0.7900 123,600
0.7600 0.7900 0.7300 0.7400 135,200
0.7900 0.8100 0.7300 0.7700 152,200
Weekend
Weekend
0.8100 0.8200 0.7900 0.7900 43,400
0.7700 0.8300 0.7700 0.8000 112,900
0.7900 0.8000 0.7600 0.7700 126,000
0.8100 0.8400 0.7800 0.7800 102,000
0.8200 0.8500 0.8100 0.8100 97,400
Weekend
Weekend
0.8400 0.8600 0.8200 0.8400 87,600
0.8700 0.8900 0.8000 0.8000 128,000
0.8800 0.9000 0.8600 0.8600 80,400
0.9100 0.9100 0.8200 0.8400 105,500
0.9100 0.9200 0.8800 0.8900 63,500
Weekend
Weekend
0.9400 0.9700 0.9000 0.9100 68,000
0.9900 1.0000 0.9000 0.9100 101,800
0.9000 0.9600 0.8900 0.9400 72,400
0.8400 0.9000 0.8000 0.9000 205,600
0.8200 0.8200 0.7900 0.8000 67,000
Weekend
Weekend
0.8200 0.8700 0.8000 0.8000 187,100
5 · 8-K After-hours · 16:05 ET FORM 8-K ↗
0.8100 0.8600 0.8000 0.8300 193,100
0.8800 0.8800 0.8100 0.8300 79,400
0.8800 0.8800 0.7900 0.8100 154,900
0.9000 0.9200 0.8700 0.8700 60,700
Weekend
Weekend
No trading
0.8200 0.9200 0.8200 0.8700 112,700
0.8300 0.8400 0.8100 0.8300 68,200
0.8200 0.8700 0.8200 0.8200 90,400
0.8600 0.8800 0.7600 0.8300 247,400
Weekend
Weekend
0.8500 0.8900 0.8300 0.8800 104,700
0.9700 1.0000 0.8200 0.8300 244,000
4 · 10-K After market open · 12:56 ET FORM 10-K FOR DEC 2025 ↗
0.9100 1.0600 0.8600 0.9800 297,300
3 · 8-K After-hours · 16:05 ET FORM 8-K ↗
1.1400 1.1400 1.0400 1.0400 223,200
1.1900 1.1900 1.1200 1.1300 80,800
Weekend
Weekend
1.2000 1.2100 1.1000 1.1700 335,100
1.0500 1.3200 1.0300 1.2200 420,100
1.0800 1.1400 1.0600 1.0600 61,300
1.2000 1.2000 1.0700 1.0800 114,400
1.0800 1.2000 1.0600 1.1900 182,400
Weekend
Weekend
1.0700 1.1300 1.0300 1.0600 122,700
1.1800 1.1800 1.0600 1.0700 149,300
1.1900 1.2100 1.1100 1.1600 130,100
1.0700 1.1900 1.0600 1.1800 176,100
1.0500 1.0900 1.0400 1.0900 74,700
Weekend
Weekend
1.0200 1.0900 1.0200 1.0600 114,400
1.0800 1.0800 1.0200 1.0500 105,800
1.0400 1.0600 1.0100 1.0600 81,700
1.0700 1.0700 0.9900 1.0200 144,800
1.0400 1.1200 1.0400 1.0700 108,000
Weekend
Weekend
1.1400 1.1900 1.0100 1.0900 262,300
0.9000 1.1300 0.9000 1.1200 350,700
0.9200 0.9200 0.8700 0.9000 91,100
0.8000 0.9100 0.8000 0.9000 130,000
0.8500 0.8500 0.7500 0.7800 160,600
Weekend
Weekend
0.9100 0.9100 0.8200 0.8400 108,600
0.8900 0.9300 0.8700 0.9000 69,200
0.8900 0.9900 0.8500 0.8900 135,100
0.9400 0.9500 0.9000 0.9000 79,400
No trading
Weekend
Weekend
0.9600 1.0200 0.9100 0.9400 113,800
1.0000 1.0000 0.9000 0.9600 168,700
1.0400 1.0400 0.9500 0.9900 95,800
1.0500 1.1200 1.0000 1.0000 196,200
1.0000 1.0700 0.9200 1.0400 224,800
Weekend
Weekend
0.9000 0.9500 0.8700 0.9200 140,400
0.8800 0.9200 0.8600 0.8800 282,900
1.0100 1.0200 0.9400 0.9700 121,600
1.0400 1.0500 0.9000 1.0000 194,800
1.0600 1.0600 1.0200 1.0400 46,200
Weekend
Weekend
1.0800 1.1000 1.0300 1.0400 95,500
1.1500 1.1500 1.0400 1.0800 187,000
1.1900 1.1900 1.1100 1.1400 139,700
1.2100 1.2300 1.1500 1.1800 142,600
1.2900 1.2900 1.2000 1.2200 165,800
Weekend
Weekend
1.3000 1.3500 1.2700 1.3000 51,800
1.2500 1.3200 1.2200 1.3000 134,100
1.3000 1.3200 1.2100 1.2400 160,100
1.3200 1.3300 1.2500 1.3000 124,600
No trading
Weekend
Weekend
1.4800 1.4800 1.2800 1.3400 238,000
1.4300 1.4800 1.4000 1.4700 92,600
1.5000 1.5000 1.3500 1.4300 117,900
1.3400 1.5200 1.3400 1.5000 301,100
1.2300 1.3300 1.2000 1.3100 117,800
Weekend
Weekend
1.2300 1.2600 1.2100 1.2400 93,900
1.2100 1.2700 1.2100 1.2400 93,200
1.2300 1.2600 1.2000 1.2200 95,000
1.2500 1.2700 1.1900 1.2100 71,200
1.2000 1.2700 1.2000 1.2600 86,600
Weekend
Weekend
1.1600 1.2100 1.1600 1.2100 68,400
No trading
1.1600 1.2000 1.1400 1.1500 128,500
1.1800 1.1900 1.1500 1.1600 109,600
1.1400 1.2000 1.1300 1.2000 252,000
Weekend
Weekend
1.2400 1.2400 1.1700 1.1900 154,700
No trading
1.2800 1.2800 1.2400 1.2600 108,000
1.2900 1.3200 1.2700 1.2900 83,100
1.2700 1.3600 1.2500 1.3300 133,400
Weekend
Weekend
1.2500 1.2800 1.2400 1.2800 73,100
1.2100 1.2800 1.2100 1.2700 90,800
1.3300 1.3400 1.1900 1.2200 176,800
1.2900 1.3300 1.2700 1.3300 66,900
1.4500 1.4500 1.2700 1.2900 166,700
Weekend
Weekend
1.4600 1.4800 1.4400 1.4600 35,500
1.4400 1.4800 1.4000 1.4400 52,600
1.4600 1.5500 1.4300 1.4700 127,100
1.4700 1.5300 1.4500 1.4500 86,800
1.4900 1.5500 1.4900 1.5000 62,600
Weekend
Weekend
1.5000 1.5600 1.4700 1.4900 69,000
1.3700 1.5400 1.3600 1.5400 139,400
1.3500 1.4400 1.3200 1.4100 94,100
1.3500 1.4000 1.3300 1.3400 53,800
1.4000 1.4000 1.3200 1.3500 58,500
Weekend
Weekend
1.3900 1.4700 1.3900 1.4200 31,800
No trading
1.3700 1.4500 1.3700 1.3800 47,300
1.3900 1.3900 1.3500 1.3800 44,100
1.2700 1.4100 1.2700 1.4000 88,000
Weekend
Weekend
1.2900 1.3200 1.2000 1.2800 217,400
1.4000 1.4500 1.2800 1.2900 124,700
1.4500 1.4500 1.3400 1.3700 67,100
1.3600 1.4500 1.3200 1.4500 90,400
1.4100 1.4400 1.3300 1.3600 167,800
Weekend
Weekend
1.3300 1.4600 1.3000 1.4400 152,200
1.6000 1.6200 1.4000 1.4000 324,900
1.6800 1.7100 1.6100 1.6100 246,300
2 · 10-Q Pre-market · 06:30 ET FORM 10-Q FOR SEPT 2025 ↗ 1 · 8-K Pre-market · 06:05 ET FORM 8-K ↗
1.7800 1.7800 1.7000 1.7500 109,900
1.7200 1.8000 1.7000 1.7900 178,800
Weekend
Weekend
1.6600 1.7200 1.6000 1.6700 269,200
1.7500 1.7800 1.6800 1.7200 278,900
1.7500 1.8300 1.7500 1.7700 96,200
1.8000 1.8500 1.7300 1.7800 285,900
1.8600 1.9100 1.8000 1.8500 119,300
Weekend
Weekend
1.7700 1.8900 1.7700 1.8700 157,000
1.8100 1.8200 1.7500 1.7700 163,800
1.9100 1.9300 1.8200 1.8200 100,500
1.9000 2.0000 1.9000 1.9100 211,200
1.9400 1.9400 1.8100 1.9000 250,500
Weekend
Weekend
1.8500 1.9400 1.8400 1.8900 178,300

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

19 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 08:14 ET Summarise
18 8-K CURRENT REPORT (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
17 8-K CURRENT REPORT (opens SEC filing in a new tab) After market open · 10:01 ET Summarise
16 8-K CURRENT REPORT (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
15 10-Q FORM 10-Q FOR JUN 2026 (opens SEC filing in a new tab) After-hours · 17:00 ET Summarise
14 8-K CURRENT REPORT (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
13 DEFA14A DEFINITIVE ADDITIONAL MATERIALS (opens SEC filing in a new tab) Pre-market · 09:00 ET Summarise
12 8-K CURRENT REPORT (opens SEC filing in a new tab) Next filing day · accepted 21 Jul, 18:20 ET Summarise
11 DEF 14A FORM DEF 14A (opens SEC filing in a new tab) Pre-market · 09:15 ET Summarise
10 PRE 14A PRE 14A (opens SEC filing in a new tab) After-hours · 16:56 ET Summarise
9 8-K CURRENT REPORT (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
8 10-Q FORM 10-Q FOR MAR 2026 (opens SEC filing in a new tab) After-hours · 17:00 ET Summarise
7 8-K FORM 8 -K (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
6 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 07:27 ET Summarise
5 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
4 10-K FORM 10-K FOR DEC 2025 (opens SEC filing in a new tab) After market open · 12:56 ET Summarise
3 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
2 10-Q FORM 10-Q FOR SEPT 2025 (opens SEC filing in a new tab) Pre-market · 06:30 ET Summarise
1 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 06:05 ET Summarise