Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionNomura Asset Management Co Ltd
Latest Disclosed Ownership256,053 shares
Latest Disclosed Value $ 20,924,651
Nomura Asset Management Co Ltd reports 4.74% decrease in ownership of FTNT / Fortinet, Inc.

On May 11, 2026 - Nomura Asset Management Co Ltd filed a 13F-HR form disclosing ownership of 256,053 shares of Fortinet, Inc. (MX:FTNT) valued at $20,924,651 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 268,802 shares of Fortinet, Inc.. This represents a change in shares of -4.74% 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)
2026-05-11 2026-03-31 13F FORTINET COM 34959E109 256,053 -12,749 -4.74 20,925 -1.97 0.0338
2026-02-10 2025-12-31 13F FORTINET COM 34959E109 268,802 6,673 2.55 21,346 -3.15 0.0540
2025-11-12 2025-09-30 13F FORTINET COM 34959E109 262,129 -221,748 -45.83 22,040 -56.92 0.0575
2025-08-11 2025-06-30 13F FORTINET COM 34959E109 483,877 -108,420 -18.31 51,155 -10.28 0.1403
2025-05-12 2025-03-31 13F FORTINET COM 34959E109 592,297 36,725 6.61 57,015 8.62 0.1745
2025-02-12 2024-12-31 13F FORTINET COM 34959E109 555,572 272,582 96.32 52,490 139.19 0.1579
2024-11-15 2024-09-30 13F FORTINET COM 34959E109 282,990 17,073 6.42 21,946 36.93 0.0677
2024-08-14 2024-06-30 13F FORTINET COM 34959E109 265,917 17,223 6.93 16,027 -5.66 0.0546
2024-05-13 2024-03-31 13F FORTINET COM 34959E109 248,694 -1,704 -0.68 16,988 15.92 0.0617
2024-02-09 2023-12-31 13F FORTINET COM 34959E109 250,398 9,203 3.82 14,656 3.55 0.0606
2023-11-03 2023-09-30 13F FORTINET COM 34959E109 241,195 -757,932 -75.86 14,153 -81.26 0.0663
2023-08-14 2023-06-30 13F FORTINET COM 34959E109 999,127 10,536 1.07 75,524 14.95 0.3479
2025-01-10 2023-03-31 13F/A-1 FORTINET COM 34959E109 988,591 261,157 35.90 65,702 84.74 0.3452
2023-05-11 2023-03-31 13F FORTINET COM 34959E109 988,591 261,157 65,702 0.3452
2025-01-10 2022-12-31 13F/A-1 FORTINET COM 34959E109 727,434 1,132 0.16 35,564 -0.33 0.2066
2023-02-14 2022-12-31 13F FORTINET COM 34959E109 727,434 1,132 35,564 0.2066
2025-01-10 2022-09-30 13F/A-3 FORTINET COM 34959E109 726,302 3,762 0.52 35,683 -12.71 0.2272
2022-11-14 2022-09-30 13F/A-2 FORTINET COM 34959E109 726,302 3,762 35,683 0.2272
2022-11-10 2022-09-30 13F/A-1 FORTINET COM 34959E109 726,302 3,762 35,683 0.2272
2022-11-10 2022-09-30 13F FORTINET COM 34959E109 726,302 3,762 35,683 0.1436
2025-01-10 2022-06-30 13F/A-1 FORTINET COM 34959E109 722,540 580,302 407.98 40,881 -15.90 0.2553
2022-08-12 2022-06-30 13F FORTINET COM 34959E109 722,540 580,302 40,881 0.2522
2025-01-10 2022-03-31 13F/A-1 FORTINET COM 34959E109 142,238 -78,994 -35.71 48,608 -38.87 0.2645
2022-05-13 2022-03-31 13F FORTINET COM 34959E109 142,238 -78,994 48,608 0.2645
2025-01-10 2021-12-31 13F/A-2 FORTINET COM 34959E109 221,232 60,517 37.65 79,511 69.40 0.4016
2022-02-01 2021-12-31 13F FORTINET COM 34959E109 221,232 60,517 79,510 0.4017
2025-01-10 2021-09-30 13F/A-2 FORTINET COM 34959E109 160,715 -37,651 -18.98 46,935 -0.66 0.2649
2021-11-12 2021-09-30 13F FORTINET COM 34959E109 160,715 -37,651 46,935 0.2649
2025-01-10 2021-06-30 13F/A-2 FORTINET COM 34959E109 198,366 16,948 9.34 47,249 41.22 0.2736
2021-08-06 2021-06-30 13F FORTINET COM 34959E109 198,366 16,948 47,249 0.2736
2025-01-10 2021-03-31 13F/A-2 FORTINET COM 34959E109 181,418 74 0.04 33,457 24.21 0.2132
2021-05-14 2021-03-31 13F FORTINET COM 34959E109 181,418 74 33,457 0.2132
2025-01-10 2020-12-31 13F/A-2 FORTINET COM 34959E109 181,344 -57,140 -23.96 26,935 -4.13 0.1812
2021-02-12 2020-12-31 13F FORTINET COM 34959E109 181,344 -57,140 26,935 0.1812
2020-11-12 2020-09-30 13F FORTINET COM 34959E109 238,484 -345,545 -59.17 28,095 -64.96 0.2157
2020-08-13 2020-06-30 13F FORTINET COM 34959E109 584,029 3,496 0.60 80,170 36.50 0.6784
2020-05-14 2020-03-31 13F FORTINET COM 34959E109 580,533 23,230 4.17 58,732 -1.29 0.6069
2020-02-13 2019-12-31 13F FORTINET COM 34959E109 557,303 -3,397 -0.61 59,498 38.24 0.5331
2019-11-13 2019-09-30 13F FORTINET COM 34959E109 560,700 -134,787 -19.38 43,039 -19.45 0.4110
2019-08-13 2019-06-30 13F FORTINET COM 34959E109 695,487 1,160 0.17 53,434 -8.35 0.5279
2019-05-10 2019-03-31 13F/A-1 FORTINET COM 34959E109 694,327 587 0.08 58,303 19.33 0.5730
2019-05-10 2019-03-31 13F FORTINET COM 34959E109 694,327 587 58,303
2019-02-12 2018-12-31 13F FORTINET COM 34959E109 693,740 441,740 175.29 48,860 110.13 0.5461
2018-11-07 2018-09-30 13F FORTINET COM 34959E109 252,000 215,300 586.65 23,252 914.93 0.2256
2018-08-03 2018-06-30 13F FORTINET COM 34959E109 36,700 0 0.00 2,291 16.53 0.0238
2018-05-14 2018-03-31 13F FORTINET COM 34959E109 36,700 0 0.00 1,966 22.65 0.0215
2018-02-14 2017-12-31 13F FORTINET COM 34959E109 36,700 0 0.00 1,603 21.90 0.0186
2017-11-13 2017-09-30 13F FORTINET COM 34959E109 36,700 36,700 1,315 0.0170
2017-08-14 2017-06-30 13F FORTINET COM 34959E109 0 -689,000 -100.00 0 -100.00
2017-06-28 2017-03-31 13F/A-1 FORTINET COM 34959E109 689,000 673,600 4,374.03 26,423 5,594.61 0.3721
2017-05-12 2017-03-31 13F FORTINET COM 34959E109 689,000 26,423
2017-02-14 2016-12-31 13F FORTINET COM 34959E109 15,400 0 0.00 464 -18.45 0.0084
2016-11-10 2016-09-30 13F FORTINET COM 34959E109 15,400 0 0.00 569 17.08 0.0102
2016-08-12 2016-06-30 13F FORTINET COM 34959E109 15,400 0 0.00 486 2.97 0.0091
2016-05-13 2016-03-31 13F FORTINET COM 34959E109 15,400 -30,700 -66.59 472 -67.15 0.0090
2016-02-12 2015-12-31 13F FORTINET COM 34959E109 46,100 14,300 44.97 1,437 6.37 0.0278
2015-11-13 2015-09-30 13F FORTINET COM 34959E109 31,800 1,800 6.00 1,351 8.95 0.0271
2015-08-14 2015-06-30 13F FORTINET COM 34959E109 30,000 0 0.00 1,240 18.21 0.0229
2015-05-13 2015-03-31 13F FORTINET COM 34959E109 30,000 5,000 20.00 1,049 35.35 0.0187
2015-02-13 2014-12-31 13F FORTINET COM 34959E109 25,000 0 0.00 775 22.63 0.0135
2014-11-14 2014-09-30 13F FORTINET COM 34959E109 25,000 -5,000 -16.67 632 -4.39 0.0112
2014-05-14 2014-03-31 13F FORTINET COM 34959E109 30,000 30,000 50.00 661 63.21 0.0121
2014-02-14 2013-12-31 13F FORTINET COM 34959E109 0 -20,000 -100.00 0 -100.00
2013-11-13 2013-09-30 13F FORTINET COM 34959E109 20,000 20,000 405 0.0077
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.