What does CUSIP 46121E304 represent in this 13F holders report?

CUSIP 46121E304 is the security identifier for INTZ - INTRUSION INC - Common Stock, par value $0.01 per share used to aggregate holder disclosures.

How many institutions held INTZ - INTRUSION INC - Common Stock, par value $0.01 per share in Q1 2026?

28 institutional investors reported INTZ - INTRUSION INC - Common Stock, par value $0.01 per share for Q1 2026. Use the holders table for investor-level position and value details.

INTRUSION INC - Common Stock, par value $0.01 per share (INTZ)

CUSIP: 46121E304

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class: Equity / Common Stock, par value $0.01 per share
Total 13F shares: 1,585,617
Total 13F value: $1,301,755
Share change: -30,145
SEC-reported price per share: $0.82
Number of holders: 28
Value change: -$57,633
Number of buys: 10
Number of sells: 12
Shares outstanding: 22,818,596

Security key

46121E304

Report period

Q1 2026

Institutions

Top holders

INTZ full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 Previous quarter: Q4 2025 INTRUSION INC SEC filings INTRUSION INC company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 46121E304

Newer quarter: Q2 2026 Previous quarter: Q4 2025

Recent filing periods:

Q3 2026 Q2 2026 Q1 2026 Q4 2025 Q3 2025

Ownership snapshot

Top reported holders of INTZ - INTRUSION INC - Common Stock, par value $0.01 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Streeterville Capital LLC

Disclosed value leader

Streeterville Capital LLC

Comparable rows

1/15

Latest evidence

31 Dec 2025

13D/G 3/4/5 13F Lead comparable stake: 9.8% 14 rows are not safely comparable across share classes. 13D/G row: Streeterville Capital LLC Showing 1-6 of 15 holder rows.

Quick read

Streeterville Capital LLC leads the comparable SEC ownership view at 9.8%.

1 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Streeterville Capital LLC's linked filing trail.

Comparable ownership Top 1

Streeterville Capital LLC 9.8%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Streeterville Capital LLC	13D/G Streeterville Management LLC 13D/G	9.8% Reported 13D/G · 27 Dec 2024	$10,625,000 8,500,000 shares	$0	27 Dec 2024
Raymond T. Hyer	3/4/5 10%+ Owner 3/4/5	— mixed-class rows	$874,697 4,248,619 shares mixed-class rows	—	08 Nov 2023
Potomac Capital Management, Inc.	13F Company 13F	— denominator unverified	$544,008 473,050 shares	—	31 Dec 2025
VANGUARD GROUP INC	13F Company 13F	— denominator unverified	$294,563 256,142 shares	—	31 Dec 2025
Benjamin Franklin Byrd	3/4/5 Chief Financial Officer 3/4/5	— mixed-class rows	$260,514 95,974 shares mixed-class rows	—	06 Nov 2021
James F. Gero	3/4/5 Director 3/4/5	— mixed-class rows	$224,585 823,219 shares mixed-class rows	—	12 Sep 2024

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

1,585,617

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders

Q1 2026 holders

Holder diff

Investor	Q4 2025 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q4 2025 value	Q1 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend