Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionAmeriprise Financial Inc
Latest Disclosed Ownership1,949,553 shares
Latest Disclosed Value $ 159,361,216
Ameriprise Financial Inc reports 57.50% decrease in ownership of FTNT / Fortinet, Inc.

On May 15, 2026 - Ameriprise Financial Inc filed a 13F-HR form disclosing ownership of 1,949,553 shares of Fortinet, Inc. (MX:FTNT) valued at $159,361,216 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 4,587,030 shares of Fortinet, Inc.. This represents a change in shares of -57.50% 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)
2026-05-15 2026-03-31 13F FORTINET COM 34959E109 1,949,553 -2,637,477 -57.50 159,361 -56.96 0.0068
2026-02-17 2025-12-31 13F FORTINET COM 34959E109 4,587,030 -573,318 -11.11 370,262 -13.91 0.0837
2025-11-14 2025-09-30 13F FORTINET COM 34959E109 5,160,348 969,899 23.15 430,082 -1.59 0.0988
2025-08-14 2025-06-30 13F FORTINET COM 34959E109 4,190,449 577,248 15.98 437,022 25.65 0.1077
2025-05-14 2025-03-31 13F FORTINET COM 34959E109 3,613,201 8,802 0.24 347,813 2.13 0.0939
2025-02-14 2024-12-31 13F FORTINET COM 34959E109 3,604,399 -35,015 -0.96 340,552 20.65 0.0874
2024-11-14 2024-09-30 13F FORTINET COM 34959E109 3,639,414 -81,363 -2.19 282,258 25.87 0.0724
2024-08-14 2024-06-30 13F FORTINET COM 34959E109 3,720,777 -1,453,921 -28.10 224,253 -36.56 0.0607
2024-05-15 2024-03-31 13F FORTINET COM 34959E109 5,174,698 72,188 1.41 353,464 18.36 0.0973
2024-02-14 2023-12-31 13F FORTINET COM 34959E109 5,102,510 -3,750,951 -42.37 298,638 -42.52 0.0894
2023-11-14 2023-09-30 13F FORTINET COM 34959E109 8,853,461 -1,166,396 -11.64 519,549 -31.40 0.1706
2023-08-14 2023-06-30 13F FORTINET COM 34959E109 10,019,857 -653,376 -6.12 757,406 6.78 0.2375
2023-05-22 2023-03-31 13F/A-1 FORTINET COM 34959E109 10,673,233 -653,152 -5.77 709,327 28.10 0.2326
2023-05-15 2023-03-31 13F FORTIS COM 34959E109 10,673,233 -653,152 709,327 0.0429
2023-02-14 2022-12-31 13F FORTINET COM 34959E109 11,326,385 -2,033,396 -15.22 553,735 -15.65 0.1898
2022-11-14 2022-09-30 13F FORTINET COM 34959E109 13,359,781 108,967 0.82 656,482 -12.37 0.2428
2022-08-15 2022-06-30 13F FORTINET COM 34959E109 13,250,814 10,803,260 441.39 749,144 -9.87 0.2613
2022-05-16 2022-03-31 13F FORTINET COM 34959E109 2,447,554 -4,586 -0.19 831,189 -4.96 0.2453
2022-02-14 2021-12-31 13F FORTINET COM 34959E109 2,452,140 19,634 0.81 874,544 23.11 0.2419
2021-11-15 2021-09-30 13F FORTINET COM 34959E109 2,432,506 -366,609 -13.10 710,377 6.55 0.2270
2021-08-16 2021-06-30 13F FORTINET COM 34959E109 2,799,115 -1,288,140 -31.52 666,725 -11.55 0.2062
2021-05-17 2021-03-31 13F FORTINET COM 34959E109 4,087,255 -761,317 -15.70 753,768 4.67 0.2505
2021-02-12 2020-12-31 13F FORTINET COM 34959E109 4,848,572 115,225 2.43 720,152 29.15 0.2554
2020-11-16 2020-09-30 13F FORTINET COM 34959E109 4,733,347 -28,123 -0.59 557,619 -14.69 0.2268
2020-08-14 2020-06-30 13F FORTINET COM 34959E109 4,761,470 -806,311 -14.48 653,607 16.04 0.2800
2020-05-15 2020-03-31 13F FORTINET COM 34959E109 5,567,781 47,802 0.87 563,245 -4.42 0.2957
2020-02-14 2019-12-31 13F FORTINET COM 34959E109 5,519,979 1,182,868 27.27 589,299 77.01 0.2450
2019-11-14 2019-09-30 13F FORTINET COM 34959E109 4,337,111 1,059,864 32.34 332,917 32.22 0.1492
2019-08-14 2019-06-30 13F FORTINET COM 34959E109 3,277,247 394,064 13.67 251,791 3.82 0.1128
2019-05-15 2019-03-31 13F FORTINET COM 34959E109 2,883,183 -81,021 -2.73 242,521 16.21 0.1115
2019-02-14 2018-12-31 13F FORTINET COM 34959E109 2,964,204 346,967 13.26 208,687 -13.58 0.1044
2018-11-14 2018-09-30 13F FORTINET COM 34959E109 2,617,237 -799,898 -23.41 241,489 13.19 0.0844
2018-08-14 2018-06-30 13F FORTINET COM 34959E109 3,417,135 -265,442 -7.21 213,339 8.12 0.0944
2018-05-14 2018-03-31 13F FORTINET COM 34959E109 3,682,577 372,170 11.24 197,313 36.42 0.0893
2018-02-12 2017-12-31 13F FORTINET COM 34959E109 3,310,407 -1,089,604 -24.76 144,632 -8.28 0.0660
2017-11-07 2017-09-30 13F FORTINET COM 34959E109 4,400,011 288,097 7.01 157,693 2.43 0.0751
2017-08-10 2017-06-30 13F FORTINET COM 34959E109 4,111,914 -198,018 -4.59 153,947 -6.86 0.0771
2017-05-05 2017-03-31 13F FORTINET COM 34959E109 4,309,932 252,158 6.21 165,282 35.23 0.0855
2017-02-03 2016-12-31 13F FORTINET COM 34959E109 4,057,774 -720,673 -15.08 122,220 -30.74 0.0667
2016-11-08 2016-09-30 13F FORTINET COM 34959E109 4,778,447 872,457 22.34 176,464 43.02 0.0989
2016-08-08 2016-06-30 13F FORTINET COM 34959E109 3,905,990 1,190,096 43.82 123,388 48.33 0.0723
2016-05-12 2016-03-31 13F FORTINET COM 34959E109 2,715,894 2,202,887 429.41 83,185 420.59 0.0496
2016-02-11 2015-12-31 13F FORTINET COM 34959E109 513,007 -34,319 -6.27 15,979 -31.19 0.0094
2015-11-12 2015-09-30 13F FORTINET COM 34959E109 547,326 -32,270 -5.57 23,222 -3.06 0.0144
2015-08-13 2015-06-30 13F FORTINET COM 34959E109 579,596 -574,211 -49.77 23,955 -40.60 0.0136
2015-05-14 2015-03-31 13F FORTINET COM 34959E109 1,153,807 -870,502 -43.00 40,327 -35.03 0.0231
2015-02-13 2014-12-31 13F FORTINET COM 34959E109 2,024,309 622,520 44.41 62,066 75.25 0.0362
2014-11-14 2014-09-30 13F FORTINET COM 34959E109 1,401,789 -108,603 -7.19 35,415 -6.67 0.0213
2014-08-13 2014-06-30 13F FORTINET COM 34959E109 1,510,392 -1,050,525 -41.02 37,944 -32.74 0.0224
2014-05-14 2014-03-31 13F FORTINET COM 34959E109 2,560,917 46,589 1.85 56,416 17.35 0.0339
2014-02-14 2013-12-31 13F FORTINET COM 34959E109 2,514,328 -1,219,434 -32.66 48,074 -36.47 0.0291
2013-11-14 2013-09-30 13F FORTINET COM 34959E109 3,733,762 2,411,623 182.40 75,670 227.05 0.0496
2013-08-14 2013-06-30 13F FORTINET COM 34959E109 1,322,139 1,322,139 23,137 0.0160
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.