Back to 
William Blair & Co.
William Blair & Co.
FTNT
Showing 8 of 31 quarters
Position history for William Blair & Co.'s holdings in Fortinet, Inc.
Yes. William Blair holds 153,799 shares of FTNT (Fortinet), worth $23.6M, as of its Q2 2026 13F filing. It reduced the position by 3,021 shares (-1.9%) from Q1 2026. William Blair has held FTNT in every 13F on record since Q4 2018, 31 quarterly filings. FTNT is 0.1% of William Blair's reported 13F portfolio.
Current Value
$23.6M
Current Shares
153,799
Total Value Change
+$6.3M
Total Shares Change
-70,235
Quarter-by-Quarter History
Other major holders of FTNT: BlackRock, Inc., Vanguard Group Inc.