Intrusion Inc (INTZ) Institutional Ownership

Ownership Summary

Intrusion Inc (NASDAQ:INTZ) currently has 23 active institutional owners and shareholders as of today (September 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

• Intrusion saw its institutional ownership percentage rose to 4.5% in September 2025 from 3.3% in June 2025.
• On a quarter-over-quarter basis, institutional holdings shifted by 34.75%, with a year-over-year an increase of 35.29% in the count of filers.
• The latest 13F cycle for Intrusion reveals that of 23 total investors, 11 funds grew their exposure, whereas 6 reduced theirs and 6 made no changes.
• The aggregate institutional position in Intrusion now stands at 824.39K shares as of September 2025, after investors increased their holdings (up by 212.58K shares quarter on quarter which is up 624.33K shares year over year).
• With 256.14K shares, VANGUARD GROUP INC commands the largest institutional position in Intrusion as of September 30, 2025, equating to 1.41% of the company.
• Among the most significant buyers of Intrusion during September 2025 were VANGUARD GROUP INC (118.24K), GSA CAPITAL PARTNERS LLP (56.95K), STATE STREET CORP (42.10K), MILLENNIUM MANAGEMENT LLC (21.18K), GEODE CAPITAL MANAGEMENT, LLC (8.48K).
• Leading sellers of Intrusion stock in September 2025 included UBS Group AG (30.42K), TWO SIGMA INVESTMENTS, LP (13.32K), CITIGROUP INC (6.64K), SBI Securities Co., Ltd. (1.37K), Cambridge Investment Research Advisors, Inc. (1.00K).
• The top 10 institutional holders of Intrusion for the quarter ending September 2025 included VANGUARD GROUP INC (256.14K), GEODE CAPITAL MANAGEMENT, LLC (172.06K), STATE STREET CORP (92.06K), GSA CAPITAL PARTNERS LLP (56.95K), TWO SIGMA INVESTMENTS, LP (49.58K), TRITONPOINT WEALTH, LLC (35.15K), NORTHERN TRUST CORP (33.64K), PROMETHIUM ADVISORS,LLC (26.89K), MILLENNIUM MANAGEMENT LLC (21.18K), Cetera Investment Advisers (18.08K).