Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionAssenagon Asset Management S.A.
Latest Disclosed Ownership25,769 shares
Latest Disclosed Value $ 2,105,843
Assenagon Asset Management S.A. reports 4.45% decrease in ownership of FTNT / Fortinet, Inc.

On April 20, 2026 - Assenagon Asset Management S.A. filed a 13F-HR form disclosing ownership of 25,769 shares of Fortinet, Inc. (MX:FTNT) valued at $2,105,843 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 26,970 shares of Fortinet, Inc.. This represents a change in shares of -4.45% 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 25,769 -1,201 -4.45 2,106 -1.68 0.0032
2026-01-09 2025-12-31 13F FORTINET COM 34959E109 26,970 9,807 57.14 2,142 48.37 0.0029
2025-10-07 2025-09-30 13F FORTINET COM 34959E109 17,163 -678 -3.80 1,443 -23.49 0.0020
2025-07-11 2025-06-30 13F FORTINET COM 34959E109 17,841 102 0.58 1,886 10.49 0.0028
2025-04-15 2025-03-31 13F FORTINET COM 34959E109 17,739 677 3.97 1,708 5.89 0.0028
2025-01-14 2024-12-31 13F FORTINET COM 34959E109 17,062 1,085 6.79 1,612 30.10 0.0026
2024-10-23 2024-09-30 13F FORTINET COM 34959E109 15,977 2,775 21.02 1,239 55.85 0.0023
2024-07-18 2024-06-30 13F FORTINET COM 34959E109 13,202 -1,032 -7.25 796 -18.21 0.0018
2024-04-24 2024-03-31 13F FORTINET COM 34959E109 14,234 469 3.41 972 20.75 0.0023
2024-01-17 2023-12-31 13F FORTINET COM 34959E109 13,765 -711 -4.91 806 -5.18 0.0021
2023-11-06 2023-09-30 13F FORTINET COM 34959E109 14,476 -567 -3.77 849 -25.33 0.0026
2023-07-25 2023-06-30 13F FORTINET COM 34959E109 15,043 -42,273 -73.75 1,137 -70.15 0.0039
2023-04-18 2023-03-31 13F FORTINET COM 34959E109 57,316 -134,886 -70.18 3,809 42,222.22 0.0135
2023-01-12 2022-12-31 13F FORTINET COM 34959E109 192,202 177,766 1,231.41 9 -98.73 0.0339
2022-10-27 2022-09-30 13F FORTINET COM 34959E109 14,436 9,271 179.50 709 142.81 0.0027
2022-07-27 2022-06-30 13F FORTINET COM 34959E109 5,165 -43,053 -89.29 292 -98.23 0.0011
2022-04-25 2022-03-31 13F FORTINET COM 34959E109 48,218 -178,407 -78.72 16,478 -79.77 0.0458
2022-02-01 2021-12-31 13F FORTINET COM 34959E109 226,625 -196,600 -46.45 81,449 -34.10 0.2360
2021-10-19 2021-09-30 13F FORTINET COM 34959E109 423,225 423,225 123,599 0.3953
2021-07-15 2021-06-30 13F FORTINET COM 34959E109 0 -150,841 -100.00 0 -100.00
2021-04-26 2021-03-31 13F FORTINET COM 34959E109 150,841 120,923 404.18 27,818 525.97 0.1129
2021-02-01 2020-12-31 13F FORTINET COM 34959E109 29,918 -383,351 -92.76 4,444 -90.87 0.0194
2020-10-07 2020-09-30 13F FORTINET COM 34959E109 413,269 64,532 18.50 48,687 1.70 0.2731
2020-07-21 2020-06-30 13F FORTINET COM 34959E109 348,737 -290,229 -45.42 47,871 -25.95 0.3070
2020-04-17 2020-03-31 13F FORTINET COM 34959E109 638,966 563,973 752.03 64,644 707.44 0.5173
2020-01-17 2019-12-31 13F FORTINET COM 34959E109 74,993 -67,387 -47.33 8,006 -26.75 0.0504
2019-10-16 2019-09-30 13F FORTINET COM 34959E109 142,380 8,569 6.40 10,929 6.30 0.0732
2019-08-12 2019-06-30 13F FORTINET COM 34959E109 133,811 47,213 54.52 10,281 41.38 0.0772
2019-04-26 2019-03-31 13F FORTINET COM 34959E109 86,598 -74,678 -46.30 7,272 -35.98 0.0682
2019-01-23 2018-12-31 13F FORTINET COM 34959E109 161,276 161,276 11,359 0.1287
2018-10-29 2018-09-30 13F FORTINET COM 34959E109 0 -167,989 -100.00 0 -100.00
2018-07-17 2018-06-30 13F FORTINET COM 34959E109 167,989 -30,785 -15.49 10,488 -1.52 0.1211
2018-04-30 2018-03-31 13F FORTINET COM 34959E109 198,774 198,774 10,650 0.1387
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.