DOSSIER · 13F Holders · Q1 2026
INTZ

INTRUSION INC

26 institutions still hold INTRUSION INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 46121E304·26 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$1M
visible holders
Holders
26
filers reporting
Concentration
32.25%
Potomac Capital Management, Inc. #1
top holder share
AI Holders Summary · Q1 2026

26 institutions reported INTZ in Q1 2026. Potomac Capital Management, Inc. leads at 32.2% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Potomac Capital Management, Inc.
CIK 0001418746
$382K465K0.33%Q1 2026
02
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$177K190K0.00%Q2 2026
03
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$165K177K0.00%Q2 2026
04
STATE STREET CORP
CIK 0000093751
$99K106K0.00%Q2 2026
05
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$83K90K0.00%Q2 2026
06
UBS Group AG
CIK 0001610520
$56K60K0.00%Q2 2026
07
NORTHERN TRUST CORP
CIK 0000073124· Index
$33K36K0.00%Q2 2026
08
TRITONPOINT WEALTH, LLC
CIK 0002008171
$33K35K0.00%Q2 2026
09
TritonPoint Partners, LLC
CIK 0002111167
$33K35K0.00%Q2 2026
10
PROMETHIUM ADVISORS,LLC
CIK 0002034073
$26K28K0.01%Q2 2026
11
XTX Topco Ltd
CIK 0001828301
$21K22K0.00%Q2 2026
12
Jump Financial, LLC
CIK 0001831577
$19K21K0.00%Q2 2026
13
Cetera Investment Advisers
CIK 0001666741
$17K18K0.00%Q2 2026
14
IHT Wealth Management, LLC
CIK 0001697490
$14K15K0.00%Q2 2026
15
GSA CAPITAL PARTNERS LLP
CIK 0001362033
$9K10K0.00%Q1 2026
16
BlackRock, Inc.
CIK 0002012383
$8K8K0.00%Q2 2026
17
Private Wealth Asset Management, LLC
CIK 0001883006
$4K4K0.00%Q2 2026
18
Tower Research Capital LLC (TRC)
CIK 0001533421
$4K4K0.00%Q2 2026
19
OSAIC HOLDINGS, INC.
CIK 0001677044
$2K2K0.00%Q2 2026
20
SBI Securities Co., Ltd.
CIK 0001851815
$9441K0.00%Q2 2026
Page 1 of 2
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Insiders at INTRUSION INC
Hinchcliffe Dion →Wilson Gregory K. →Mccallum Katrinka →Levecchio Anthony J →Pinson Kimberly →Scott Anthony →Head T Joe →