Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

INTRUSION INC

CIK 0000736012INTZ· quarter ending 2026-06-30
Shares outstanding
24,506,953
Held by 13F filers
1,372,684
5.6% of shares outstanding
Holders
24
-4 vs 2026-03-31 · 3 new, 7 exited
Value
$1.3M
shares -13.4% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-11, as of 2026-08-11)

ClassListedShares outstandingHeld by 13F filers% of classHoldersCUSIP
Common stockINTZ · NASDAQ24,506,9531,372,6845.6%2446121E304

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine
CountCUSIPClass (as filers write it)HoldersShares heldClass shares% of classValueOptionsMapped via
46121E304COM241,372,68424,506,9535.6%$1.3M—13DGholders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings. 1 further CUSIPs map to this company (mostly bonds) but no 13F filer held them this quarter.

Top holders (24 of 24 · 46121E304)

change vs 2026-03-31
#FilerShares% of classValueChange
1Potomac Capital Management, Inc.518,4292.12%$481K+53,014 (+11.4%)
2GEODE CAPITAL MANAGEMENT, LLC190,2770.78%$177K-152,332 (-44.5%)
3VANGUARD CAPITAL MANAGEMENT LLC177,1710.72%$165K+10,800 (+6.5%)
4STATE STREET CORP106,4690.43%$99K—
5VANGUARD FIDUCIARY TRUST CO89,5280.37%$83K—
6UBS Group AG60,4260.25%$56K+7,823 (+14.9%)
7NORTHERN TRUST CORP35,8230.15%$33K+1,521 (+4.4%)
8TRITONPOINT WEALTH, LLC35,1500.14%$33K-123,740 (-77.9%)
9TritonPoint Partners, LLC35,1500.14%$33KNEW
10PROMETHIUM ADVISORS,LLC27,9920.11%$26K—
11XTX Topco Ltd22,1110.09%$21K-12,834 (-36.7%)
12Jump Financial, LLC20,7080.08%$19KNEW
13Cetera Investment Advisers18,0820.07%$17K-5 (-0.0%)
14IHT Wealth Management, LLC15,0650.06%$14K+5,000 (+49.7%)
15BlackRock, Inc.8,1290.03%$8K-1,847 (-18.5%)
16Private Wealth Asset Management, LLC4,4820.02%$4K—
17Tower Research Capital LLC (TRC)4,3780.02%$4K-309 (-6.6%)
18OSAIC HOLDINGS, INC.2,1520.01%$2K+102 (+5.0%)
19SBI Securities Co., Ltd.1,0160.00%$944-170 (-14.3%)
20BARCLAYS PLC1210.00%$112NEW
21VISION FINANCIAL MARKETS LLC130.00%$11—
22BNP PARIBAS FINANCIAL MARKETS90.00%$8—
23MORGAN STANLEY20.00%$2-7,962 (-100.0%)
24Caitong International Asset Management Co., Ltd10.00%$1—
Exited since 2026-03-31 (7 filers; largest 7 shown)
TWO SIGMA INVESTMENTS, LP−13,483
CITADEL ADVISORS LLC−12,125
TWO SIGMA SECURITIES, LLC−11,683
GSA CAPITAL PARTNERS LLP−10,436
Vanguard Global Advisers, LLC−243
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO−2
CITIGROUP INC−1

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting personFormFiledEventShares% of class
Tego Cyber, Inc.SCHEDULE 13G2026-07-082026-06-292,373,13410.4%
John M FifeSCHEDULE 13G2024-12-272024-12-27850,0009.8%
Streeterville Capital LLCSCHEDULE 13G2024-12-272024-12-27850,0009.8%
Streeterville Management LLCSCHEDULE 13G2024-12-272024-12-278,500,0009.8%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.