Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionVestmark Advisory Solutions, Inc.
Latest Disclosed Ownership3,043 shares
Latest Disclosed Value $ 248,674
Vestmark Advisory Solutions, Inc. ownership in FTNT / Fortinet, Inc.

On May 15, 2026 - Vestmark Advisory Solutions, Inc. filed a 13F-HR form disclosing ownership of 3,043 shares of Fortinet, Inc. (MX:FTNT) valued at $248,674 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 10, 2025 disclosing 0 shares of Fortinet, Inc..

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 3,043 3,043 249 0.0017
2025-11-10 2025-09-30 13F FORTINET COM 34959E109 0 -2,492 -100.00 0 -100.00
2025-08-06 2025-06-30 13F FORTINET COM 34959E109 2,492 2,492 263 0.0038
2023-11-06 2023-09-30 13F FORTINET COM 34959E109 0 -6,559 -100.00 0 -100.00
2023-08-07 2023-06-30 13F FORTINET COM 34959E109 6,559 904 15.99 496 32.00 0.0189
2023-05-09 2023-03-31 13F FORTINET COM 34959E109 5,655 -100 -1.74 376 33.45 0.0163
2023-01-20 2022-12-31 13F FORTINET COM 34959E109 5,755 -700 -10.84 281 -11.36 0.0137
2022-11-03 2022-09-30 13F FORTINET COM 34959E109 6,455 -494 -7.11 317 -19.34 0.0177
2022-08-04 2022-06-30 13F FORTINET COM 34959E109 6,949 5,627 425.64 393 -13.05 0.0224
2022-04-27 2022-03-31 13F FORTINET COM 34959E109 1,322 -453 -25.52 452 -29.15 0.0256
2022-01-31 2021-12-31 13F FORTINET COM 34959E109 1,775 -109 -5.79 638 16.00 0.0360
2021-11-15 2021-09-30 13F FORTINET COM 34959E109 1,884 -365 -16.23 550 2.61 0.0372
2021-08-09 2021-06-30 13F FORTINET COM 34959E109 2,249 -114 -4.82 536 22.94 0.0381
2021-05-10 2021-03-31 13F FORTINET COM 34959E109 2,363 126 5.63 436 31.33 0.0387
2021-02-04 2020-12-31 13F FORTINET COM 34959E109 2,237 -333 -12.96 332 9.57 0.0373
2020-10-19 2020-09-30 13F FORTINET COM 34959E109 2,570 -212 -7.62 303 -20.68 0.0407
2020-08-13 2020-06-30 13F FORTINET COM 34959E109 2,782 -85 -2.96 382 31.72 0.0591
2020-05-06 2020-03-31 13F FORTINET COM 34959E109 2,867 2,867 290 0.0567
2020-02-14 2019-12-31 13F FORTINET COM 34959E109 0 -2,799 -100.00 0 -100.00
2019-11-05 2019-09-30 13F FORTINET COM 34959E109 2,799 91 3.36 215 3.37 0.0349
2019-08-20 2019-06-30 13F FORTINET COM 34959E109 2,708 2,708 208 0.0356
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.