FFIV F5, INC.: institutional ownership and insider trading
904 funds reported holding $25.2B of F5, INC. in their latest 13F filings; in Q2 2026 funds net sold $755M, with 161 new positions and 63 funds selling out; over the last 12 months insiders bought $0 and sold $29.1M on the open market.
Famous investors holding FFIV
- Stanley Druckenmiller (Duquesne Family Office): $9.15M, 0.2% of the portfolio
- Izzy Englander (Millennium Management): $193M, 0.1% of the portfolio
- Two Sigma (Two Sigma Investments): $57.6M, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $12.6M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $110M, 0.0% of the portfolio
- Lee Ainslie (Maverick Capital): $653K, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $3.19M, 0.0% of the portfolio
Largest institutional holders of FFIV
- BlackRock, Inc. (BLK) — $2.61B
- VANGUARD GROUP INC — $1.88B
- VANGUARD CAPITAL MANAGEMENT LLC — $1.53B
- STATE STREET CORP (STT, STT-PG) — $1.29B
- VANGUARD PORTFOLIO MANAGEMENT LLC — $1.17B
- Jericho Capital Asset Management L.P. — $881M
- HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC — $858M
- GEODE CAPITAL MANAGEMENT, LLC — $741M
- FIRST TRUST ADVISORS LP — $641M
- Invesco Ltd. (IVZ) — $576M
Recent FFIV insider trades
- Sep 14, 2026: Montoya Michael F sold 4,426 shares ($1.82M)
- Sep 14, 2026: Maddison John Anthony sold 204 shares ($82.9K)
- Aug 5, 2026: Locoh-Donou Francois sold 3,782 shares ($1.56M)
- Aug 5, 2026: Fountain Thomas Dean sold 1,208 shares ($501K)
Members of Congress trading FFIV
- Oct 22, 2025: Julie Johnson sold $1.00K–$15.0K
- Oct 21, 2025: Julie Johnson sold $1.00K–$15.0K
- Oct 21, 2025: Julie Johnson bought $1.00K–$15.0K
5%+ owners
- Vanguard Capital Management: 7.5% (Schedule 13G, filed Apr 29, 2026)