Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionFirst Trust Advisors Lp
Latest Disclosed Ownership11,506,173 shares
Latest Disclosed Value $ 940,284,433
First Trust Advisors Lp reports 45.51% increase in ownership of FTNT / Fortinet, Inc.

On May 13, 2026 - First Trust Advisors Lp filed a 13F-HR form disclosing ownership of 11,506,173 shares of Fortinet, Inc. (MX:FTNT) valued at $940,284,433 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 7,907,686 shares of Fortinet, Inc.. This represents a change in shares of 45.51% 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)
2026-05-13 2026-03-31 13F FORTINET COM 34959E109 11,506,173 3,598,487 45.51 940,284 49.74 0.6701
2026-02-13 2025-12-31 13F FORTINET COM 34959E109 7,907,686 332,024 4.38 627,949 -1.41 0.4564
2025-11-12 2025-09-30 13F FORTINET COM 34959E109 7,575,662 1,790,033 30.94 636,962 4.14 0.4733
2025-08-13 2025-06-30 13F FORTINET COM 34959E109 5,785,629 708,508 13.95 611,657 25.15 0.4919
2025-05-14 2025-03-31 13F FORTINET COM 34959E109 5,077,121 -32,806 -0.64 488,724 1.23 0.4329
2025-02-13 2024-12-31 13F FORTINET COM 34959E109 5,109,927 -199,419 -3.76 482,786 17.26 0.4256
2024-11-13 2024-09-30 13F FORTINET COM 34959E109 5,309,346 -1,423,525 -21.14 411,740 1.47 0.3923
2024-08-13 2024-06-30 13F FORTINET COM 34959E109 6,732,871 1,563,826 30.25 405,790 14.92 0.4137
2024-05-13 2024-03-31 13F FORTINET COM 34959E109 5,169,045 -149,368 -2.81 353,097 13.43 0.3584
2024-02-13 2023-12-31 13F FORTINET COM 34959E109 5,318,413 -2,360,532 -30.74 311,287 -30.92 0.3397
2023-11-13 2023-09-30 13F FORTINET COM 34959E109 7,678,945 1,565,876 25.62 450,601 -2.49 0.5340
2023-08-14 2023-06-30 13F FORTINET COM 34959E109 6,113,069 -30,974 -0.50 462,087 13.16 0.5254
2023-05-15 2023-03-31 13F FORTINET COM 34959E109 6,144,043 -1,011,558 -14.14 408,333 16.66 0.4715
2023-02-09 2022-12-31 13F FORTINET COM 34959E109 7,155,601 2,205,127 44.54 350,010 43.91 0.4162
2022-11-14 2022-09-30 13F FORTINET COM 34959E109 4,950,474 650,645 15.13 243,216 -0.03 0.3153
2022-08-12 2022-06-30 13F FORTINET COM 34959E109 4,299,829 3,353,970 354.60 243,284 -24.74 0.3004
2022-05-13 2022-03-31 13F FORTINET COM 34959E109 945,859 -100,471 -9.60 323,238 -14.04 0.3306
2022-02-08 2021-12-31 13F FORTINET COM 34959E109 1,046,330 284,384 37.32 376,051 69.00 0.3658
2021-11-15 2021-09-30 13F FORTINET COM 34959E109 761,946 -33,012 -4.15 222,519 17.52 0.2393
2021-10-12 2021-06-30 13F/A-1 FORTINET COM 34959E109 794,958 41,924 5.57 189,351 36.35 0.2050
2021-08-16 2021-06-30 13F FORTINET COM 34959E109 794,958 41,924 189,351 0.1953
2021-05-14 2021-03-31 13F FORTINET COM 34959E109 753,034 51,435 7.33 138,875 33.27 0.1682
2021-02-02 2020-12-31 13F FORTINET COM 34959E109 701,599 -126,679 -15.29 104,208 6.79 0.1381
2020-11-05 2020-09-30 13F FORTINET COM 34959E109 828,278 46,807 5.99 97,579 -9.04 0.1563
2020-07-22 2020-06-30 13F FORTINET COM 34959E109 781,471 -74,098 -8.66 107,273 23.93 0.1859
2020-05-06 2020-03-31 13F FORTINET COM 34959E109 855,569 408,485 91.37 86,558 81.35 0.1961
2020-02-03 2019-12-31 13F FORTINET COM 34959E109 447,084 40,167 9.87 47,731 52.81 0.0815
2019-11-04 2019-09-30 13F FORTINET COM 34959E109 406,917 -245,231 -37.60 31,235 -37.66 0.0588
2019-07-30 2019-06-30 13F FORTINET COM 34959E109 652,148 -351,509 -35.02 50,105 -40.55 0.0945
2019-06-19 2019-03-31 13F/A-1 FORTINET COM 34959E109 1,003,657 -201,725 -16.74 84,277 -0.73 0.1676
2019-05-09 2019-03-31 13F FORTINET COM 34959E109 1,003,657 -201,725 84,277
2019-02-07 2018-12-31 13F FORTINET COM 34959E109 1,205,382 156,832 14.96 84,895 -12.25 0.2013
2018-10-25 2018-09-30 13F FORTINET COM 34959E109 1,048,550 1,000 0.10 96,750 47.94 0.1801
2018-08-02 2018-06-30 13F FORTINET COM 34959E109 1,047,550 27,705 2.72 65,399 19.68 0.1356
2018-04-23 2018-03-31 13F FORTINET COM 34959E109 1,019,845 748,550 275.92 54,643 361.01 0.1255
2018-02-08 2017-12-31 13F FORTINET COM 34959E109 271,295 -104,630 -27.83 11,853 -12.02 0.0282
2017-10-24 2017-09-30 13F FORTINET COM 34959E109 375,925 -121,983 -24.50 13,473 -27.73 0.0347
2017-08-02 2017-06-30 13F FORTINET COM 34959E109 497,908 230,091 85.91 18,642 81.50 0.0498
2017-05-02 2017-03-31 13F FORTINET COM 34959E109 267,817 -23,326 -8.01 10,271 17.13 0.0285
2017-02-06 2016-12-31 13F FORTINET COM 34959E109 291,143 96,370 49.48 8,769 21.91 0.0261
2016-11-01 2016-09-30 13F FORTINET COM 34959E109 194,773 109,860 129.38 7,193 168.20 0.0215
2016-08-04 2016-06-30 13F FORTINET COM 34959E109 84,913 -4,576 -5.11 2,682 -2.15 0.0084
2016-05-10 2016-03-31 13F FORTINET COM 34959E109 89,489 -486,456 -84.46 2,741 -84.73 0.0088
2016-05-04 2015-12-31 13F/A-1 FORTINET COM 34959E109 575,945 -18,987 -3.19 17,952 -28.97 0.0466
2016-02-03 2015-12-31 13F FORTINET COM 34959E109 575,945 17,952
2015-11-05 2015-09-30 13F FORTINET COM 34959E109 594,932 -33,312 -5.30 25,273 -2.67 0.0732
2015-08-04 2015-06-30 13F FORTINET COM 34959E109 628,244 -17,148 -2.66 25,965 15.11 0.0674
2015-05-04 2015-03-31 13F FORTINET COM 34959E109 645,392 -8,862 -1.35 22,556 12.45 0.0663
2015-02-13 2014-12-31 13F FORTINET COM 34959E109 654,254 -96,969 -12.91 20,059 5.68 0.0677
2014-11-12 2014-09-30 13F FORTINET COM 34959E109 751,223 573,144 321.85 18,980 324.13 0.0747
2014-08-11 2014-06-30 13F FORTINET COM 34959E109 178,079 178,079 202.68 4,475 334.47 0.0186
2013-11-12 2013-09-30 13F FORTINET COM 34959E109 0 -58,834 -100.00 0 -100.00
2013-08-12 2013-06-30 13F FORTINET COM 34959E109 58,834 58,834 1,030 0.0067
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.