F5 FFIV
F5 is the 354th largest S&P 500 company by market cap, worth $25.8 billion. 12 directors have filed with the SEC in the last 12 months (who counts), 1 of them an executive. 9 other officers are on file. At 30 Jun 2026, Vanguard was its largest institutional holder, with 12.6% of the company.
- CEO
- Francois Locoh-Donou
- Sector
- Information Technology
- Sub-industry
- Communications Equipment
- Headquarters
- Seattle, Washington
- Founded
- 1996
- More
- Wikipedia
- Market cap
- $25.8B
- 354th largest, 23 Oct 2026 close
- Price to sales
- 8.3
- Market cap over revenue
- Market cap per employee
- $3.9M
- Market cap over employees
- Connections
- 5
- S&P 500 companies sharing a director or officer
Largest institutional holders
Each fund group's share of F5. Where a company has several share classes, the share is of its total value.
13F filings for the quarter to 30 Jun 2026
Board and officers
5 people here also hold roles at other S&P 500 companies.
Roles filed up to 30 Sep 2026
| Name | Title |
|---|---|
| Directors (12) | |
| Francois Locoh-DonouPresident, CEO & DirectorAlso at Capital One | |
| Marianne BudnikDirectorLast filed 13 Mar 2026 | |
| Elizabeth BuseDirectorAlso at U.S. Bancorp | |
| Michel CombesDirectorAlso at Philip Morris InternationalLast filed 13 Mar 2026 | |
| Michael L. DreyerDirectorAlso at CoherentLast filed 13 Mar 2026 | |
| Tami A. ErwinDirectorAlso at Deere & CompanyLast filed 13 Mar 2026 | |
| Anand EswaranDirector | |
| Julie Marie GonzalezDirectorLast filed 13 Mar 2026 | |
| Alan HigginsonDirectorLast filed 13 Mar 2026 | |
| Maya McReynoldsDirectorLast filed 13 Mar 2026 | |
| Nikhil Ramesh MehtaDirector | |
| Gavin MunroeDirector | |
| Officers (9) | |
| Edward Cooper WernerChief Financial OfficerLast filed 4 Aug 2026 | |
| Kunal AnandChief Technology OfficerLast filed 4 Aug 2026 | |
| Thomas Dean FountainEVP Global Services & StrategyLast filed 6 Aug 2026 | |
| John Anthony MaddisonChief Product Mkting OfficerLast filed 15 Sep 2026 | |
| Michael F. MontoyaChief Technology Ops OfficerLast filed 15 Sep 2026 | |
| Angelique M. OkekeEVP, General CounselLast filed 2 Sep 2026 | |
| Catherine A. PetermanChief People OfficerLast filed 4 Aug 2026 | |
| Lyra Amber SchrammChief People OfficerLast filed 5 Feb 2026 | |
| Chad Michael WhalenEVP, Worldwide SalesLast filed 4 Aug 2026 | |
Companies that share people with F5
Each person's title here, then at the other company.
- Capital One COF
- Francois Locoh-Donou: President, CEO & Director here, Director there
- Coherent COHR
- Michael L. Dreyer: Director here, Director there
- Deere & Company DE
- Tami A. Erwin: Director here, Director there
- Philip Morris International PM
- Michel Combes: Director here, Director there
- U.S. Bancorp USB
- Elizabeth Buse: Director here, Director there
F5's market cap since December 2008
Weekly, up to 23 Oct 2026
| Week ending | Market cap |
|---|---|
| 23 Oct 2026 | $25.8B |
| 26 Dec 2025 | $15.3B |
| 27 Dec 2024 | $15.0B |
| 29 Dec 2023 | $10.7B |
| 30 Dec 2022 | $8.7B |
| 31 Dec 2021 | $15.0B |
| 25 Dec 2020 | $10.8B |
| 27 Dec 2019 | $8.5B |
| 28 Dec 2018 | $9.7B |
| 29 Dec 2017 | $8.2B |
| 30 Dec 2016 | $9.4B |
| 25 Dec 2015 | $6.9B |
| 26 Dec 2014 | $9.9B |
| 27 Dec 2013 | $6.9B |
| 28 Dec 2012 | $7.6B |
| 30 Dec 2011 | $8.4B |
| 31 Dec 2010 | $10.5B |
| 25 Dec 2009 | $4.1B |
| 26 Dec 2008 | $1.8B |
Download F5's data as JSON, with the weekly market caps in billions of dollars from 5 Dec 2008.
Workforce
Headcount at 30 Sep 2025
- Employees
- 6,578
As of September 30, 2025, we had 6,578 employees – over 99% of whom were full-time employees.
Insider trades
Open-market buys and sales by directors and officers. Grants, option exercises and shares withheld for tax are left out.
Trades from 30 Sep 2025 to 30 Sep 2026
Directors and officers sold $29.5 million of stock in 51 sales and made no open-market purchases in the 12 months to 30 Sep 2026.
| Date | Person | Value |
|---|---|---|
| 14 Sep 2026Sale | Michael F. MontoyaChief Technology Ops Officer | $1.8M |
| 14 Sep 2026Sale | John Anthony MaddisonChief Product Mkting Officer | $83K |
| 5 Aug 2026Sale | Francois Locoh-DonouPresident, CEO & Director | $1.6M |
| 5 Aug 2026Sale | Thomas Dean FountainEVP Global Services & Strategy | $501K |
| 3 Aug 2026Sale | John Anthony MaddisonChief Product Mkting Officer | $406K |
| 3 Aug 2026Sale | Chad Michael WhalenEVP, Worldwide Sales | $285K |
| 3 Aug 2026Sale | Edward Cooper WernerChief Financial Officer | $243K |
| 3 Aug 2026Sale | Angelique M. OkekeEVP, General Counsel | $208K |
| 3 Aug 2026Sale | Kunal AnandChief Technology Officer | $159K |
| 30 Jul 2026Sale | Nikhil Ramesh MehtaDirector | $1.6M |
Showing 10 of 51 trades
Trades by members of Congress and officials
Trades members of Congress and senior executive branch officials disclosed, including their families'. Amounts are filed as ranges.
Trades from 20 Oct 2023 to 20 Oct 2026
3 people disclosed 4 purchases and 3 sales of F5 stock since October 2023.
| Date | Member or official | Amount |
|---|---|---|
| 27 Apr 2026 | Donald J TrumpPresident · Sold | $15K to $50K |
| 27 Mar 2026 | Alan ArmstrongSenate, R-OK · Bought | $1K to $15K |
| 10 Feb 2026 | Donald J TrumpPresident · Bought | $500K to $1M |
| 6 Jan 2026 | Donald J TrumpPresident · Bought | $250K to $500K |
| 22 Oct 2025 | Julie JohnsonHouse, D-TX · Sold | $1K to $15K |
| 21 Oct 2025 | Julie JohnsonHouse, D-TX · Bought | $1K to $15K |
| 21 Oct 2025 | Julie JohnsonHouse, D-TX · Sold | $1K to $15K |
WARN layoff notices
Notices filed under F5's own name. Subsidiaries that file under their own names are not included.
Notices from 26 Oct 2023 to 26 Oct 2026
F5 filed 1 notice covering 106 workers since October 2023.
| Notice | Place | Workers |
|---|---|---|
| 12 Aug 2025 | Seattle, Liberty Lake, WA | 106 |