Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionCarderock Capital Management Inc
Latest Disclosed Ownership91,109 shares
Latest Disclosed Value $ 7,445,427
Carderock Capital Management Inc reports 3.20% decrease in ownership of FTNT / Fortinet, Inc.

On April 10, 2026 - Carderock Capital Management Inc filed a 13F-HR form disclosing ownership of 91,109 shares of Fortinet, Inc. (MX:FTNT) valued at $7,445,427 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 94,124 shares of Fortinet, Inc.. This represents a change in shares of -3.20% 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)
2026-04-10 2026-03-31 13F FORTINET COM 34959E109 91,109 -3,015 -3.20 7,445 -0.39 1.8393
2026-01-09 2025-12-31 13F FORTINET COM 34959E109 94,124 5,603 6.33 7,474 0.43 1.8109
2025-10-17 2025-09-30 13F Fortinet COM 34959E109 88,521 -41 -0.05 7,443 -20.51 1.8096
2025-07-10 2025-06-30 13F Fortinet COM 34959E109 88,562 2,993 3.50 9,363 13.67 2.3985
2025-05-27 2025-03-31 13F Fortinet COM 34959E109 85,569 -4,214 -4.69 8,237 -2.90 2.1830
2025-01-15 2024-12-31 13F Fortinet COM 34959E109 89,783 -422 -0.47 8,483 21.26 2.1277
2024-10-16 2024-09-30 13F Fortinet COM 34959E109 90,205 -44,959 -33.26 6,995 -14.13 1.6516
2024-07-22 2024-06-30 13F Fortinet COM 34959E109 135,164 1,507 1.13 8,146 -10.78 2.1317
2024-04-23 2024-03-31 13F Fortinet COM 34959E109 133,657 -15,391 -10.33 9,130 4.67 2.5592
2024-01-23 2023-12-31 13F Fortinet COM 34959E109 149,048 10,508 7.58 8,724 7.31 2.4089
2023-10-23 2023-09-30 13F Fortinet COM 34959E109 138,540 23,988 20.94 8,130 101,512.50 2.7281
2023-07-25 2023-06-30 13F Fortinet COM 34959E109 114,552 4,052 3.67 9 -99.89 2.6849
2023-04-19 2023-03-31 13F Fortinet COM 34959E109 110,500 36,282 48.89 7,344 244,666.67 2.5594
2023-01-20 2022-12-31 13F Fortinet COM 34959E109 74,218 17,125 29.99 4 -99.89 1.5049
2022-11-04 2022-09-30 13F/A-1 Fortinet COM 34959E109 57,093 -31,972 -35.90 2,805 -44.33 1.4316
2022-10-21 2022-09-30 13F Fortinet COM 34959E109 89,065 0 5,039 2.1046
2022-07-21 2022-06-30 13F Fortinet COM 34959E109 89,065 69,845 363.40 5,039 -23.28 2.1046
2022-04-28 2022-03-31 13F Fortinet COM 34959E109 19,220 -1,188 -5.82 6,568 -10.46 2.1210
2022-01-31 2021-12-31 13F Fortinet COM 34959E109 20,408 3,867 23.38 7,335 51.83 1.7615
2021-10-29 2021-09-30 13F Fortinet COM 34959E109 16,541 34 0.21 4,831 22.86 1.3614
2021-07-30 2021-06-30 13F Fortinet COM 34959E109 16,507 302 1.86 3,932 31.55 1.0782
2021-05-07 2021-03-31 13F Fortinet COM 34959E109 16,205 363 2.29 2,989 27.03 0.8930
2021-02-05 2020-12-31 13F Fortinet COM 34959E109 15,842 15,842 2,353 0.7102
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.