Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionYorktown Management & Research Co Inc
Latest Disclosed Ownership4,950 shares
Latest Disclosed Value $ 404,514
Yorktown Management & Research Co Inc ownership in FTNT / Fortinet, Inc.

On April 20, 2026 - Yorktown Management & Research Co Inc filed a 13F-HR form disclosing ownership of 4,950 shares of Fortinet, Inc. (MX:FTNT) valued at $404,514 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 4,950 shares of Fortinet, Inc.. This represents a change in shares of 0.00% 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)
2026-04-20 2026-03-31 13F Fortinet COM 34959E109 4,950 0 0.00 405 2.80 0.3384
2026-01-23 2025-12-31 13F Fortinet COM 34959E109 4,950 0 0.00 393 -5.53 0.3142
2025-10-29 2025-09-30 13F Fortinet COM 34959E109 4,950 0 0.00 416 -20.46 0.3318
2025-08-04 2025-06-30 13F Fortinet COM 34959E109 4,950 0 0.00 523 9.87 0.4995
2025-04-23 2025-03-31 13F Fortinet COM 34959E109 4,950 0 0.00 476 1.93 0.5178
2025-01-27 2024-12-31 13F Fortinet COM 34959E109 4,950 0 0.00 468 21.93 0.4496
2024-10-25 2024-09-30 13F Fortinet COM 34959E109 4,950 0 0.00 384 28.52 0.3933
2024-07-30 2024-06-30 13F Fortinet COM 34959E109 4,950 0 0.00 298 -11.83 0.3206
2024-04-26 2024-03-31 13F Fortinet COM 34959E109 4,950 0 0.00 338 16.96 0.3218
2024-01-26 2023-12-31 13F Fortinet COM 34959E109 4,950 -4,950 -50.00 290 -50.17 0.3025
2023-10-26 2023-09-30 13F Fortinet COM 34959E109 9,900 0 0.00 581 -22.46 0.6535
2023-07-28 2023-06-30 13F Fortinet COM 34959E109 9,900 0 0.00 748 13.85 0.8047
2023-04-21 2023-03-31 13F Fortinet COM 34959E109 9,900 -1,600 -13.91 658 16.90 0.7099
2023-01-26 2022-12-31 13F Fortinet COM 34959E109 11,500 0 0.00 562 -0.53 0.6874
2022-11-04 2022-09-30 13F Fortinet COM 34959E109 11,500 0 0.00 565 -13.21 0.7323
2022-07-29 2022-06-30 13F Fortinet COM 34959E109 11,500 9,200 400.00 651 -17.18 0.8396
2022-04-29 2022-03-31 13F Fortinet COM 34959E109 2,300 0 0.00 786 -4.96 0.6668
2022-02-09 2021-12-31 13F Fortinet SPONSORED ADS 34959E109 2,300 0 0.00 827 23.07 0.5585
2021-11-04 2021-09-30 13F Fortinet COM 34959E109 2,300 0 0.00 672 22.63 0.5053
2021-08-03 2021-06-30 13F Fortinet COM 34959E109 2,300 0 0.00 548 29.25 0.4297
2021-05-11 2021-03-31 13F Fortinet COM 34959E109 2,300 0 0.00 424 23.98 0.3521
2021-02-11 2020-12-31 13F Fortinet COM 34959E109 2,300 0 0.00 342 26.20 0.3077
2020-11-06 2020-09-30 13F Fortinet COM 34959E109 2,300 0 0.00 271 -14.24 0.2532
2020-08-11 2020-06-30 13F Fortinet COM 34959E109 2,300 0 0.00 316 35.62 0.2831
2020-04-29 2020-03-31 13F Fortinet COM 34959E109 2,300 -900 -28.12 233 -31.87 0.2356
2020-01-27 2019-12-31 13F Fortinet COM 34959E109 3,200 0 0.00 342 39.02 0.1837
2019-11-01 2019-09-30 13F Fortinet COM 34959E109 3,200 3,200 246 0.1325
2016-05-05 2016-03-31 13F FORTINET COM 34959E109 0 0 0 0.0000
2016-01-27 2015-12-31 13F FORTINET COM 34959E109 0 -7,700 -100.00 0 -100.00
2015-11-05 2015-09-30 13F FORTINET COM 34959E109 7,700 0 0.00 327 2.83 0.0541
2015-07-22 2015-06-30 13F FORTINET COM 34959E109 7,700 0 0.00 318 18.22 0.0557
2015-04-23 2015-03-31 13F FORTINET COM 34959E109 7,700 -3,300 -30.00 269 -20.18 0.0486
2015-02-05 2014-12-31 13F FORTINET COM 34959E109 11,000 0 0.00 337 21.22 0.0704
2014-10-31 2014-09-30 13F FORTINET COM 34959E109 11,000 0 0.00 278 0.72 0.0533
2014-07-23 2014-06-30 13F FORTINET COM 34959E109 11,000 0 0.00 276 14.05 0.0513
2014-05-06 2014-03-31 13F FORTINET COM 34959E109 11,000 11,000 242 0.0461
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.