Stock

Intrusion Inc

INTZ · held by 26 managers

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025

Reported value

$1.7M

Holders

+0 new · −0 exited

Holders’ est. mark

−$282

Price effect on 2 books still in the name

Largest holder

$544K

Potomac Capital Management, Inc.

Notable conviction

Share of each notable manager’s 13F book.

Citadel0.0% · $59.1K
State Street0.0% · $118.2K
Vanguard0.0% · $294.6K

Holder count by quarter

Q3 2024 Q4 2024 Q3 2025 Q4 2025 Q1 2026

Who holds it

Notable only

Investor	Shares	Value	Est. mark	Change
Potomac Capital Management, Inc.	473.1K	$544K	—	Held
Vanguard	256.1K	$294.6K	—	Held
GEODE CAPITAL MANAGEMENT, LLC	187.4K	$215.6K	—	Held
TRITONPOINT WEALTH, LLC	158.9K	$182.7K	—	Held
State Street	102.8K	$118.2K	—	Held
Citadel	51.4K	$59.1K	—	Held
TWO SIGMA INVESTMENTS, LP	47.9K	$55.1K	—	Held
JANE STREET GROUP, LLC	44.6K	$51.3K	—	Held
NORTHERN TRUST CORP	34.3K	$39.4K	—	Held
XTX Topco Ltd	30.4K	$34.9K	—	Held
PROMETHIUM ADVISORS,LLC	27.6K	$31.8K	—	Held
Cetera Investment Advisers	18.1K	$20.8K	—	Held
BlackRock, Inc.	11.7K	$13.4K	—	Held
UBS Group AG	10.4K	$11.9K	—	Held
IHT Wealth Management, LLC	10.1K	$11.6K	—	Held
Private Wealth Asset Management, LLC	4.48K	$5.15K	—	Held
CITIGROUP INC	3.64K	$4.19K	—	Held
OSAIC HOLDINGS, INC.	2.15K	$2.48K	—	Held
SBI Securities Co., Ltd.	1.79K	$2.05K	—	Held
BANK OF AMERICA CORP /DE/	618	$711	−$275	Cut−$267
GSA CAPITAL PARTNERS LLP	95.5K	$110	—	Held
Virtu Financial LLC	27.3K	$31	—	Held
Cambridge Investment Research Advisors, Inc.	15.6K	$18	—	Held
MORGAN STANLEY	15	$17	−$7	Cut−$8.37K
VISION FINANCIAL MARKETS LLC	13	$15	—	Held
BNP PARIBAS FINANCIAL MARKETS	9	$10	—	Held

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.