Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionMassmutual Trust Co Fsb/adv
Latest Disclosed Ownership2,297 shares
Latest Disclosed Value $ 187,711
Massmutual Trust Co Fsb/adv reports 26.35% increase in ownership of FTNT / Fortinet, Inc.

On April 13, 2026 - Massmutual Trust Co Fsb/adv filed a 13F-HR form disclosing ownership of 2,297 shares of Fortinet, Inc. (MX:FTNT) valued at $187,711 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 7, 2026 disclosing 1,818 shares of Fortinet, Inc.. This represents a change in shares of 26.35% 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)
2026-04-13 2026-03-31 13F Fortinet Common / Ordinary Stock 34959E109 2,297 479 26.35 188 29.86 0.0051
2026-01-07 2025-12-31 13F Fortinet Common / Ordinary Stock 34959E109 1,818 -750 -29.21 144 -33.02 0.0037
2025-10-22 2025-09-30 13F Fortinet Common / Ordinary Stock 34959E109 2,568 -15,320 -85.64 216 -88.63 0.0055
2025-07-09 2025-06-30 13F Fortinet Common / Ordinary Stock 34959E109 17,888 -2,520 -12.35 1,891 -3.72 0.0504
2025-04-01 2025-03-31 13F Fortinet Common / Ordinary Stock 34959E109 20,408 4,135 25.41 1,964 27.78 0.0568
2025-01-16 2024-12-31 13F Fortinet Common / Ordinary Stock 34959E109 16,273 15,122 1,313.81 1,537 1,626.97 0.0431
2024-10-02 2024-09-30 13F Fortinet Common / Ordinary Stock 34959E109 1,151 35 3.14 89 32.84 0.0025
2024-07-02 2024-06-30 13F Fortinet Common / Ordinary Stock 34959E109 1,116 132 13.41 67 0.00 0.0020
2024-04-09 2024-03-31 13F Fortinet Common / Ordinary Stock 34959E109 984 180 22.39 67 42.55 0.0021
2024-01-03 2023-12-31 13F Fortinet Common / Ordinary Stock 34959E109 804 4 0.50 47 2.17 0.0016
2023-10-04 2023-09-30 13F Fortinet Common / Ordinary Stock 34959E109 800 -384 -32.43 47 -48.31 0.0017
2023-08-02 2023-06-30 13F Fortinet Common / Ordinary Stock 34959E109 1,184 165 16.19 89 32.84 0.0032
2023-04-11 2023-03-31 13F Fortinet Common / Ordinary Stock 34959E109 1,019 422 70.69 68 0.0026
2023-01-06 2022-12-31 13F Fortinet Common / Ordinary Stock 34959E109 597 205 52.30 0 0.0012
2022-10-07 2022-09-30 13F Fortinet Common / Ordinary Stock 34959E109 392 -119 -23.29 0 0.0009
2022-07-07 2022-06-30 13F Fortinet Common / Ordinary Stock 34959E109 511 460 901.96 0 0.0013
2022-04-08 2022-03-31 13F Fortinet Common / Ordinary Stock 34959E109 51 1 2.00 0 0.0006
2022-02-09 2021-12-31 13F Fortinet Common / Ordinary Stock 34959E109 50 -19 -27.54 0 0.0007
2021-11-12 2021-09-30 13F Fortinet Common / Ordinary Stock 34959E109 69 3 4.55 0 0.0008
2021-08-16 2021-06-30 13F Fortinet Common / Ordinary Stock 34959E109 66 61 1,220.00 0 0.0007
2021-05-17 2021-03-31 13F Fortinet Common / Ordinary Stock 34959E109 5 5 0 0.0000
2020-11-13 2020-09-30 13F Fortinet Common / Ordinary Stock 34959E109 0 -21 -100.00 0 -100.00
2020-08-13 2020-06-30 13F Fortinet Common / Ordinary Stock 34959E109 21 -129 -86.00 3 -80.00 0.0002
2020-05-15 2020-03-31 13F Fortinet Common / Ordinary Stock 34959E109 150 0 0.00 15 -6.25 0.0012
2020-05-15 2019-12-31 13F Fortinet Common / Ordinary Stock 34959E109 150 0 0.00 16 33.33 0.0010
2019-11-14 2019-09-30 13F Fortinet Common / Ordinary Stock 34959E109 150 0 0.00 12 0.00 0.0008
2019-08-14 2019-06-30 13F Fortinet Common / Ordinary Stock 34959E109 150 0 0.00 12 0.00 0.0008
2019-05-15 2019-03-31 13F Fortinet Common / Ordinary Stock 34959E109 150 -150 -50.00 13 -42.86 0.0009
2019-02-26 2018-12-31 13F Fortinet Common / Ordinary Stock 34959E109 300 0 0.00 21 -22.22 0.0018
2018-11-09 2018-09-30 13F Fortinet Common / Ordinary Stock 34959E109 300 0 0.00 28 50.00 0.0021
2018-08-20 2018-06-30 13F Fortinet Common / Ordinary Stock 34959E109 300 0 0.00 19 12.50 0.0015
2018-05-21 2018-03-31 13F Fortinet Common / Ordinary Stock 34959E109 300 -200 -40.00 16 -23.81 0.0013
2018-03-01 2017-12-31 13F/A-1 Fortinet Common / Ordinary Stock 34959E109 500 0 0.00 22 23.53 0.0018
2018-02-21 2017-12-31 13F iShares Russell 1000 Value ETF Exchange Traded Fund 34959E109 13,666 13,166 1,699
2018-02-13 2017-09-30 13F Fortinet common 34959E109 500 500 18 0.0015
2017-08-14 2017-06-30 13F Fortinet common 34959E109 0 -30 -100.00 0 -100.00
2017-05-02 2017-03-31 13F Fortinet common 34959E109 30 30 1 0.0001
2017-02-13 2016-12-31 13F FORTINET common 34959E109 0 -15 -100.00 0 0.0000
2016-08-10 2016-06-30 13F FORTINET common 34959E109 15 15 0 0.0001
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.