Fortinet, Inc.
US ˙ NasdaqGS ˙ US34959E1091

SecurityFTNT / Fortinet, Inc.
InstitutionQuantbot Technologies LP
Latest Disclosed Ownership57,936 shares
Latest Disclosed Value $ 4,734,530
Quantbot Technologies LP reports 14.01% decrease in ownership of FTNT / Fortinet, Inc.

On May 13, 2026 - Quantbot Technologies LP filed a 13F-HR form disclosing ownership of 57,936 shares of Fortinet, Inc. (US:FTNT) valued at $4,734,530 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 67,374 shares of Fortinet, Inc.. This represents a change in shares of -14.01% during the quarter. The current value of the position is $8,486,465 USD.

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 57,936 -9,438 -14.01 4,735 -11.51 0.1937
2026-02-10 2025-12-31 13F FORTINET COM 34959E109 67,374 -11,329 -14.39 5,350 -19.15 0.1780
2025-11-12 2025-09-30 13F FORTINET COM 34959E109 78,703 66,245 531.75 6,617 402.43 0.1801
2025-08-13 2025-06-30 13F FORTINET COM 34959E109 12,458 -116,497 -90.34 1,317 -89.39 0.0338
2025-05-13 2025-03-31 13F FORTINET COM 34959E109 128,955 -33,772 -20.75 12,413 -19.26 0.3952
2025-02-11 2024-12-31 13F FORTINET COM 34959E109 162,727 14,202 9.56 15,374 33.48 0.5618
2024-11-13 2024-09-30 13F FORTINET COM 34959E109 148,525 27,685 22.91 11,518 58.15 0.4544
2024-08-09 2024-06-30 13F FORTINET COM 34959E109 120,840 120,840 7,283 0.3525
2024-05-06 2024-03-31 13F FORTINET COM 34959E109 0 -60,344 -100.00 0 -100.00
2024-02-14 2023-12-31 13F FORTINET COM 34959E109 60,344 60,344 3,532 0.2051
2023-11-07 2023-09-30 13F FORTINET COM 34959E109 0 -12,698 -100.00 0 -100.00
2023-08-08 2023-06-30 13F FORTINET COM 34959E109 12,698 -3,545 -21.82 960 -11.12 0.0628
2023-05-12 2023-03-31 13F FORTINET COM 34959E109 16,243 5,002 44.50 1,080 96.54 0.0764
2023-02-13 2022-12-31 13F FORTINET COM 34959E109 11,241 -22,020 -66.20 550 -66.40 0.0394
2022-11-07 2022-09-30 13F FORTINET COM 34959E109 33,261 3,556 11.97 1,634 -2.74 0.1234
2022-08-09 2022-06-30 13F FORTINET COM 34959E109 29,705 24,953 525.11 1,680 3.51 0.1544
2022-05-16 2022-03-31 13F FORTINET COM 34959E109 4,752 4,752 1,623 0.1415
2022-02-11 2021-12-31 13F FORTINET COM 34959E109 0 -19,140 -100.00 0 -100.00
2021-11-09 2021-09-30 13F FORTINET COM 34959E109 19,140 19,140 5,589 0.4087
2021-02-12 2020-12-31 13F FORTINET COM 34959E109 0 -36,209 -100.00 0 -100.00
2020-11-16 2020-09-30 13F FORTINET COM 34959E109 36,209 14,436 66.30 4,265 42.74 0.4892
2020-08-13 2020-06-30 13F FORTINET COM 34959E109 21,773 17,225 378.74 2,988 549.57 0.3948
2020-05-13 2020-03-31 13F FORTINET COM 34959E109 4,548 -13,515 -74.82 460 -76.14 0.2998
2020-02-10 2019-12-31 13F FORTINET COM 34959E109 18,063 -32,654 -64.38 1,928 -50.48 0.1913
2019-11-12 2019-09-30 13F FORTINET COM 34959E109 50,717 50,717 3,893 0.3838
2019-05-13 2019-03-31 13F FORTINET COM 34959E109 0 -10,544 -100.00 0 -100.00
2019-02-13 2018-12-31 13F FORTINET COM 34959E109 10,544 10,544 742 0.0726
2018-11-13 2018-09-30 13F FORTINET COM 34959E109 0 -23,122 -100.00 0 -100.00
2018-08-13 2018-06-30 13F FORTINET COM 34959E109 23,122 23,122 1,443 0.0982
2018-05-11 2018-03-31 13F FORTINET COM 34959E109 0 -8,215 -100.00 0 -100.00
2018-02-12 2017-12-31 13F FORTINET COM 34959E109 8,215 -43,204 -84.02 358 -80.56 0.0332
2017-11-07 2017-09-30 13F FORTINET COM 34959E109 51,419 39,126 318.28 1,842 300.43 0.1766
2017-08-11 2017-06-30 13F FORTINET COM 34959E109 12,293 -2,221 -15.30 460 -17.27 0.0433
2017-05-10 2017-03-31 13F FORTINET COM 34959E109 14,514 14,514 556 0.0583
2017-02-09 2016-12-31 13F FORTINET COM 34959E109 0 -23,983 -100.00 0 -100.00
2016-10-31 2016-09-30 13F FORTINET COM 34959E109 23,983 -7,485 -23.79 885 -10.97 0.0983
2016-08-02 2016-06-30 13F FORTINET COM 34959E109 31,468 6,078 23.94 994 27.93 0.1058
2016-04-28 2016-03-31 13F FORTINET COM 34959E109 25,390 -2,482 -8.90 777 -10.48 0.1244
2016-01-22 2015-12-31 13F FORTINET COM 34959E109 27,872 27,872 0.00 868 0.1489
2015-01-27 2014-12-31 13F FORTINET COM 34959E109 0 -54,658 -100.00 0 -100.00
2014-10-15 2014-09-30 13F FORTINET COM 34959E109 54,658 46,181 544.78 1,380 832.43 0.1898
2013-08-02 2013-06-30 13F FORTINET COM 34959E109 8,477 8,477 148 0.0775
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.