Intrusion Inc (INTZ) Institutional Ownership

Ownership Summary

Recent 13F filings as of September 2025 show that 23 institutional investors hold a position in Intrusion Inc (NASDAQ:INTZ).

• These investors collectively held 4.1% of the company's total shares outstanding in September 2025, up from 3.4% in June 2025.
• Institutional share ownership changed by 34.73% QoQ, while the number of institutional owners saw an increase of 43.75% YoY.
• A review of institutional activity for Intrusion shows 11 of 23 filers increasing their positions, while 6 reduced their stake, and 6 remained unchanged.
• The total number of shares held by institutions in Intrusion increased to 824.39K as of September 2025, a net change of up by 212.53K shares quarter on quarter, and 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 1.29% 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).