Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionSage Mountain Advisors LLC
Latest Disclosed Ownership42,300 shares
Latest Disclosed Value $ 3,456,756
Sage Mountain Advisors LLC reports 38.13% decrease in ownership of FTNT / Fortinet, Inc.

On May 11, 2026 - Sage Mountain Advisors LLC filed a 13F-HR form disclosing ownership of 42,300 shares of Fortinet, Inc. (MX:FTNT) valued at $3,456,756 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 68,371 shares of Fortinet, Inc.. This represents a change in shares of -38.13% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F FORTINET COM 34959E109 42,300 -26,071 -38.13 3,457 -36.34 0.2419
2026-01-23 2025-12-31 13F FORTINET COM 34959E109 68,371 -254 -0.37 5,429 -5.91 0.2879
2025-10-29 2025-09-30 13F FORTINET COM 34959E109 68,625 -45 -0.07 5,770 -20.51 0.3306
2025-07-31 2025-06-30 13F FORTINET COM 34959E109 68,670 -276 -0.40 7,260 9.39 0.4725
2025-05-02 2025-03-31 13F FORTINET COM 34959E109 68,946 498 0.73 6,637 2.63 0.4893
2025-02-07 2024-12-31 13F FORTINET COM 34959E109 68,448 -286 -0.42 6,467 21.31 0.4725
2024-10-29 2024-09-30 13F FORTINET COM 34959E109 68,734 663 0.97 5,330 29.94 0.4544
2024-07-31 2024-06-30 13F FORTINET COM 34959E109 68,071 1,897 2.87 4,103 -9.25 0.3793
2024-04-23 2024-03-31 13F FORTINET COM 34959E109 66,174 -895 -1.33 4,520 15.16 0.4698
2024-02-01 2023-12-31 13F FORTINET COM 34959E109 67,069 975 1.48 3,926 1.21 0.4554
2023-10-25 2023-09-30 13F FORTINET COM 34959E109 66,094 -393 -0.59 3,878 -22.83 0.5334
2023-07-24 2023-06-30 13F FORTINET COM 34959E109 66,487 142 0.21 5,026 13.97 0.7163
2023-04-25 2023-03-31 13F FORTINET COM 34959E109 66,345 66,345 4,409 0.7110
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.