Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionConestoga Capital Advisors, LLC
Latest Disclosed Ownership3,273 shares
Latest Disclosed Value $ 267,470
Conestoga Capital Advisors, LLC reports 34.77% decrease in ownership of FTNT / Fortinet, Inc.

On April 24, 2026 - Conestoga Capital Advisors, LLC filed a 13F-HR form disclosing ownership of 3,273 shares of Fortinet, Inc. (MX:FTNT) valued at $267,470 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 5,018 shares of Fortinet, Inc.. This represents a change in shares of -34.77% 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)
2026-04-24 2026-03-31 13F FORTINET COM 34959E109 3,273 -1,745 -34.77 267 -32.91 0.0053
2026-02-02 2025-12-31 13F FORTINET COM 34959E109 5,018 -2,195 -30.43 398 -34.32 0.0067
2025-10-24 2025-09-30 13F FORTINET COM 34959E109 7,213 40 0.56 606 -20.05 0.0097
2025-07-30 2025-06-30 13F FORTINET COM 34959E109 7,173 -3,086 -30.08 758 -23.20 0.0112
2025-04-17 2025-03-31 13F FORTINET COM 34959E109 10,259 0 0.00 988 1.86 0.0149
2025-01-24 2024-12-31 13F FORTINET COM 34959E109 10,259 145 1.43 969 23.60 0.0128
2024-10-28 2024-09-30 13F FORTINET COM 34959E109 10,114 -3,720 -26.89 784 -5.88 0.0106
2024-07-26 2024-06-30 13F FORTINET COM 34959E109 13,834 -1,605 -10.40 834 -20.97 0.0125
2024-04-26 2024-03-31 13F FORTINET COM 34959E109 15,439 -280 -1.78 1,055 14.57 0.0152
2024-01-26 2023-12-31 13F FORTINET COM 34959E109 15,719 -1,750 -10.02 920 -10.24 0.0138
2023-10-30 2023-09-30 13F FORTINET COM 34959E109 17,469 3,088 21.47 1,025 -5.70 0.0176
2023-07-28 2023-06-30 13F FORTINET COM 34959E109 14,381 -1,659 -10.34 1,087 1.97 0.0173
2023-04-24 2023-03-31 13F FORTINET COM 34959E109 16,040 -1,435 -8.21 1,066 24.82 0.0179
2023-02-01 2022-12-31 13F FORTINET COM 34959E109 17,475 -190 -1.08 854 -1.61 0.0160
2022-10-24 2022-09-30 13F FORTINET COM 34959E109 17,665 569 3.33 868 -10.24 0.0170
2022-07-22 2022-06-30 13F FORTINET COM 34959E109 17,096 13,642 394.96 967 -18.05 0.0176
2022-04-25 2022-03-31 13F FORTINET COM 34959E109 3,454 -757 -17.98 1,180 -22.01 0.0178
2022-01-21 2021-12-31 13F FORTINET COM 34959E109 4,211 -735 -14.86 1,513 4.78 0.0197
2021-10-22 2021-09-30 13F FORTINET COM 34959E109 4,946 50 1.02 1,444 23.84 0.0200
2021-07-27 2021-06-30 13F FORTINET COM 34959E109 4,896 -237 -4.62 1,166 23.13 0.0168
2021-04-23 2021-03-31 13F FORTINET COM 34959E109 5,133 -825 -13.85 947 7.01 0.0143
2021-01-26 2020-12-31 13F FORTINET COM 34959E109 5,958 -155 -2.54 885 22.92 0.0141
2020-10-23 2020-09-30 13F FORTINET COM 34959E109 6,113 0 0.00 720 -14.18 0.0145
2020-08-03 2020-06-30 13F FORTINET COM 34959E109 6,113 380 6.63 839 44.66 0.0183
2020-04-17 2020-03-31 13F FORTINET COM 34959E109 5,733 -380 -6.22 580 -11.18 0.0170
2020-01-24 2019-12-31 13F FORTINET COM 34959E109 6,113 0 0.00 653 39.23 0.0157
2019-10-25 2019-09-30 13F FORTINET COM 34959E109 6,113 0 0.00 469 -0.21 0.0120
2019-08-02 2019-06-30 13F FORTINET COM 34959E109 6,113 0 0.00 470 -8.38 0.0117
2019-04-18 2019-03-31 13F FORTINET COM 34959E109 6,113 0 0.00 513 19.03 0.0143
2019-01-25 2018-12-31 13F FORTINET COM 34959E109 6,113 -1,800 -22.75 431 -40.96 0.0137
2018-10-25 2018-09-30 13F FORTINET COM 34959E109 7,913 0 0.00 730 47.77 0.0186
2018-07-20 2018-06-30 13F FORTINET COM 34959E109 7,913 0 0.00 494 16.51 0.0159
2018-04-23 2018-03-31 13F FORTINET COM 34959E109 7,913 0 0.00 424 22.54 0.0162
2018-01-22 2017-12-31 13F FORTINET COM 34959E109 7,913 0 0.00 346 21.83 0.0133
2017-10-20 2017-09-30 13F FORTINET COM 34959E109 7,913 0 0.00 284 -4.05 0.0126
2017-07-21 2017-06-30 13F FORTINET COM 34959E109 7,913 0 0.00 296 -2.31 0.0154
2017-04-19 2017-03-31 13F FORTINET COM 34959E109 7,913 0 0.00 303 27.31 0.0183
2017-01-11 2016-12-31 13F FORTINET COM 34959E109 7,913 180 2.33 238 -16.78 0.0158
2016-10-11 2016-09-30 13F FORTINET COM 34959E109 7,733 0 0.00 286 17.21 0.0196
2016-07-22 2016-06-30 13F FORTINET COM 34959E109 7,733 -200 -2.52 244 0.41 0.0180
2016-04-08 2016-03-31 13F FORTINET COM 34959E109 7,933 0 0.00 243 -1.62 0.0164
2016-01-14 2015-12-31 13F FORTINET COM 34959E109 7,933 -2,667 -25.16 247 -45.11 0.0200
2015-10-16 2015-09-30 13F FORTINET COM 34959E109 10,600 0 0.00 450 2.74 0.0361
2015-07-09 2015-06-30 13F FORTINET COM 34959E109 10,600 -1,663 -13.56 438 2.10 0.0304
2015-04-28 2015-03-31 13F FORTINET COM 34959E109 12,263 -207 -1.66 429 12.30 0.0294
2015-01-12 2014-12-31 13F FORTINET COM 34959E109 12,470 0 0.00 382 21.27 0.0266
2014-11-07 2014-09-30 13F FORTINET COM 34959E109 12,470 0 0.00 315 0.64 0.0230
2014-11-07 2014-06-30 13F/A-1 FORTINET COM 34959E109 12,470 1,520 13.88 313 29.88 0.0210
2014-07-08 2014-06-30 13F FORTINET COM 34959E109 12,470 313
2014-11-07 2014-03-31 13F/A-1 FORTINET COM 34959E109 10,950 -3,710 -25.31 241 -13.93 0.0152
2014-04-23 2014-03-31 13F FORTINET COM 34959E109 10,950 241
2014-11-07 2013-12-31 13F/A-1 FORTINET COM 34959E109 14,660 -700 -4.56 280 -9.97 0.0188
2014-01-22 2013-12-31 13F FORTINET COM 34959E109 14,660 280
2014-11-07 2013-09-30 13F/A-1 FORTINET COM 34959E109 15,360 3,530 29.84 311 50.24 0.0266
2013-10-23 2013-09-30 13F FORTINET COM 34959E109 15,360 311
2014-11-07 2013-06-30 13F/A-1 FORTINET COM 34959E109 11,830 2,640 28.73 207 -5.05 0.0214
2013-07-29 2013-06-30 13F FORTINET COM 34959E109 11,830 207
2014-11-07 2013-03-31 13F/A-1 FORTINET COM 34959E109 9,190 9,190 218 0.0231
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.