Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionPinnacle Associates Ltd
Latest Disclosed Ownership5,147 shares
Latest Disclosed Value $ 420,613
Pinnacle Associates Ltd reports 13.35% decrease in ownership of FTNT / Fortinet, Inc.

On April 21, 2026 - Pinnacle Associates Ltd filed a 13F-HR form disclosing ownership of 5,147 shares of Fortinet, Inc. (MX:FTNT) valued at $420,613 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 5,940 shares of Fortinet, Inc.. This represents a change in shares of -13.35% 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)
2026-04-21 2026-03-31 13F FORTINET COM 34959E109 5,147 -793 -13.35 421 -10.83 0.0054
2026-02-05 2025-12-31 13F FORTINET COM 34959E109 5,940 5,940 472 0.0061
2025-11-13 2025-09-30 13F FORTINET COM 34959E109 0 -12,942 -100.00 0 -100.00
2025-08-04 2025-06-30 13F FORTINET COM 34959E109 12,942 9,536 279.98 1,368 318.35 0.0198
2025-05-06 2025-03-31 13F FORTINET COM 34959E109 3,406 1 0.03 328 1.87 0.0048
2025-02-14 2024-12-31 13F FORTINET COM 34959E109 3,405 -36 -1.05 322 59.70 0.0044
2024-10-25 2024-09-30 13F FORTINET COM 34959E109 3,441 43 1.27 201 -1.47 0.0034
2024-07-30 2024-06-30 13F FORTINET COM 34959E109 3,398 -66 -1.91 205 -13.56 0.0032
2024-04-26 2024-03-31 13F FORTINET COM 34959E109 3,464 23 0.67 237 17.41 0.0037
2024-01-19 2023-12-31 13F FORTINET COM 34959E109 3,441 -2,276 -39.81 201 -40.00 0.0034
2023-10-24 2023-09-30 13F FORTINET COM 34959E109 5,717 1,201 26.59 335 -1.76 0.0062
2023-07-27 2023-06-30 13F FORTINET COM 34959E109 4,516 -1,101 -19.60 341 -8.58 0.0059
2023-05-05 2023-03-31 13F FORTINET COM 34959E109 5,617 -902 -13.84 373 17.30 0.0076
2023-02-01 2022-12-31 13F/A-1 FORTINET COM 34959E109 6,519 81 1.26 319 0.63 0.0069
2023-01-25 2022-12-31 13F FORTINET COM 34959E109 5,719 -719 303 0.0000
2022-11-01 2022-09-30 13F FORTINET COM 34959E109 6,438 1,748 37.27 316 19.25 0.0073
2022-08-02 2022-06-30 13F FORTINET COM 34959E109 4,690 4,000 579.71 265 12.29 0.0058
2022-05-05 2022-03-31 13F FORTINET COM 34959E109 690 -92 -11.76 236 -16.01 0.0042
2022-02-02 2021-12-31 13F FORTINET COM 34959E109 782 0 0.00 281 23.25 0.0048
2021-10-19 2021-09-30 13F FORTINET COM 34959E109 782 782 228 0.0042
2020-02-03 2019-12-31 13F FORTINET COM 34959E109 0 -10,066 -100.00 0 -100.00
2019-11-08 2019-09-30 13F FORTINET COM 34959E109 10,066 -463 -4.40 773 -4.45 0.0182
2019-08-05 2019-06-30 13F FORTINET COM 34959E109 10,529 -656 -5.86 809 -13.84 0.0189
2019-05-10 2019-03-31 13F FORTINET COM 34959E109 11,185 -975 -8.02 939 9.70 0.0212
2019-02-05 2018-12-31 13F FORTINET COM 34959E109 12,160 -1,210 -9.05 856 -30.63 0.0221
2018-11-09 2018-09-30 13F FORTINET COM 34959E109 13,370 -8,655 -39.30 1,234 -10.25 0.0256
2018-08-08 2018-06-30 13F FORTINET COM 34959E109 22,025 -665 -2.93 1,375 13.08 0.0283
2018-05-11 2018-03-31 13F FORTINET COM 34959E109 22,690 17,890 372.71 1,216 479.05 0.0238
2018-02-12 2017-12-31 13F FORTINET COM 34959E109 4,800 -3,525 -42.34 210 -29.53 0.0040
2017-11-13 2017-09-30 13F FORTINET COM 34959E109 8,325 570 7.35 298 2.76 0.0055
2017-08-09 2017-06-30 13F FORTINET COM 34959E109 7,755 460 6.31 290 3.57 0.0056
2017-05-09 2017-03-31 13F FORTINET COM 34959E109 7,295 410 5.95 280 35.27 0.0053
2017-02-10 2016-12-31 13F FORTINET COM 34959E109 6,885 6,885 207 0.0042
2015-11-10 2015-09-30 13F FORTINET COM 34959E109 0 -4,997 -100.00 0 -100.00
2015-08-12 2015-06-30 13F FORTINET COM 34959E109 4,997 4,997 207 0.0038
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.