FORTINET INC (FTNT) Stock Institutional Trading Activity


FORTINET INC (FTNT) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Fundsmith, Renaissance Technologies LLC, Eagle Capital Management, Fundsmith Investment Services, and Sequoia Financial Advisors. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q3 2020Renaissance Technologies LLCSell-1,331,0004,642,687$546,955
Q2 2020Renaissance Technologies LLCSell-90,7015,973,687$820,008
Q1 2020Renaissance Technologies LLCBuy313,5006,064,388$613,534
Q4 2019Renaissance Technologies LLCBuy1,506,4885,750,888$613,965
Q3 2019Renaissance Technologies LLCBuy699,4004,244,400$325,800
Q2 2019Renaissance Technologies LLCSell-193,7003,545,000$272,362
Q1 2019Renaissance Technologies LLCBuy1,061,6003,738,700$313,939
Q4 2018Renaissance Technologies LLCSell-683,7002,677,100$188,548
Q3 2018Renaissance Technologies LLCSell-1,440,1003,360,800$310,101
Q1 2018Renaissance Technologies LLCBuy382,4004,800,900$257,232
Q4 2017Renaissance Technologies LLCBuy22,7004,418,500$193,044
Q3 2017Renaissance Technologies LLCSell-125,9004,395,800$157,545
Q2 2017Renaissance Technologies LLCBuy726,3004,521,700$169,292
Q1 2017Renaissance Technologies LLCBuy1,177,3003,795,400$145,554
Q4 2016Renaissance Technologies LLCBuy1,356,6002,618,100$78,857
Q3 2016Renaissance Technologies LLCBuy557,1001,261,500$46,587
Q2 2016Renaissance Technologies LLCSell-867,100704,400$22,252
Q1 2016Renaissance Technologies LLCBuy830,4001,571,500$48,135
Q4 2015Renaissance Technologies LLCBuy678,300741,100$23,100
Q3 2015Renaissance Technologies LLCSell-266,40062,800$2,668
Q4 2014Renaissance Technologies LLCSell-182,900329,200$10,093
Q3 2014Renaissance Technologies LLCBuy135,400512,100$12,938
Q2 2014Renaissance Technologies LLCBuy57,474376,700$9,466
Q4 2013Renaissance Technologies LLCSell-400,774319,226$6,107
Q2 2013Renaissance Technologies LLCBuy720,000720,000$12,600

Frequently asked questions about FTNT activity

  • Which institutional owners are buying FTNT?

    Institutional owners buying FTNT include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in FTNT activity?

    "Buy" means an investor increased their reported position in FTNT compared to the prior reporting period. This reflects growing exposure to FORTINET INC (FTNT) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in FTNT increasing?

    Institutional interest in FTNT can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.