Fortinet, Inc.
US ˙ NasdaqGS ˙ US34959E1091

SecurityFTNT / Fortinet, Inc.
InstitutionCerity Partners LLC
Latest Disclosed Ownership430,179 shares
Latest Disclosed Value $ 35,154,268
Cerity Partners LLC reports 20.52% increase in ownership of FTNT / Fortinet, Inc.

On May 15, 2026 - Cerity Partners LLC filed a 13F-HR form disclosing ownership of 430,179 shares of Fortinet, Inc. (US:FTNT) valued at $35,154,228 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 356,949 shares of Fortinet, Inc.. This represents a change in shares of 20.52% during the quarter. The current value of the position is $63,012,620 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)
2026-05-15 2026-03-31 13F FORTINET COM 34959E109 430,179 73,230 20.52 35,154 24.02 0.0247
2026-02-11 2025-12-31 13F FORTINET COM 34959E109 356,949 88,962 33.20 28,345 25.80 0.0413
2025-10-22 2025-09-30 13F FORTINET COM 34959E109 267,987 -82,363 -23.51 22,532 -39.17 0.0365
2025-08-13 2025-06-30 13F FORTINET Stock 34959E109 350,350 1,950 0.56 37,039 10.44 0.0661
2025-04-30 2025-03-31 13F FORTINET Stock 34959E109 348,400 71,170 25.67 33,537 30.38 0.0679
2025-02-13 2024-12-31 13F FORTINET Stock 34959E109 277,230 3,072 1.12 25,723 20.99 0.0558
2024-11-12 2024-09-30 13F FORTINET Stock 34959E109 274,158 57,888 26.77 21,261 63.11 0.0471
2024-08-13 2024-06-30 13F FORTINET COM 34959E109 216,270 -10,171 -4.49 13,035 -15.74 0.0343
2024-05-14 2024-03-31 13F FORTINET COM 34959E109 226,441 -132,780 -36.96 15,468 -26.43 0.0409
2024-01-26 2023-12-31 13F FORTINET COM 34959E109 359,221 -317,938 -46.95 21,026 -47.09 0.0691
2023-11-14 2023-09-30 13F FORTINET Equities 34959E109 677,159 162,176 31.49 39,735 2.08 0.1932
2023-08-14 2023-06-30 13F FORTINET Equities 34959E109 514,983 84,217 19.55 38,928 29.84 0.1516
2023-05-11 2023-03-31 13F FORTINET COM 34959E109 430,766 430,766 29,981 0.0707
2022-11-10 2022-09-30 13F FORTINET COM 34959E109 0 -97,446 -100.00 0 -100.00
2022-08-10 2022-06-30 13F FORTINET COM 34959E109 97,446 97,446 5,514 0.0609
2022-02-14 2021-12-31 13F Fortinet Stock 34959E109 0 -1,342 -100.00 0 -100.00
2021-10-25 2021-09-30 13F Fortinet Stock 34959E109 1,342 -12 -0.89 392 21.36 0.0086
2021-08-11 2021-06-30 13F FORTINET Stock 34959E109 1,354 -18,218 -93.08 323 -91.05 0.0071
2021-08-11 2021-03-31 13F/A-1 FORTINET Stock 34959E109 19,572 -224 -1.13 3,609 22.76 0.0857
2021-05-12 2021-03-31 13F FORTINET Stock 34959E109 19,716 -80 3,636 0.1077
2021-02-11 2020-12-31 13F FORTINET Stock 34959E109 19,796 28 0.14 2,940 26.23 0.0943
2020-11-12 2020-09-30 13F FORTINET COM 34959E109 19,768 19,768 2,329 0.0958
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.