Fortinet, Inc.
US ˙ NasdaqGS ˙ US34959E1091

SecurityFTNT / Fortinet, Inc.
InstitutionAvestar Capital, LLC
Latest Disclosed Ownership6,751 shares
Latest Disclosed Value $ 551,692
Avestar Capital, LLC ownership in FTNT / Fortinet, Inc.

On May 13, 2026 - Avestar Capital, LLC filed a 13F-HR form disclosing ownership of 6,751 shares of Fortinet, Inc. (US:FTNT) valued at $551,692 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 4,899 shares of Fortinet, Inc.. This represents a change in shares of 37.80% during the quarter. The current value of the position is $988,886 USD.

Avestar Capital, LLC has a history of taking positions in derivatives of the underlying security (FTNT) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

FTNT / Fortinet, Inc. Historical Put/Call Ratio
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 6,751 1,852 37.80 552 41.65 0.0354
2026-02-10 2025-12-31 13F FORTINET COM 34959E109 4,899 -2,716 -35.67 389 -39.22 0.0252
2025-11-07 2025-09-30 13F FORTINET COM 34959E109 7,615 -511 -6.29 640 -25.49 0.0419
2025-08-13 2025-06-30 13F FORTINET COM 34959E109 8,126 2,876 54.78 859 70.10 0.0587
2025-05-14 2025-03-31 13F FORTINET COM 34959E109 5,250 -198 -3.63 505 -1.75 0.0439
2025-01-29 2024-12-31 13F FORTINET COM 34959E109 5,448 -977 -15.21 515 3.21 0.0437
2024-11-13 2024-09-30 13F FORTINET COM 34959E109 6,425 283 4.61 498 34.59 0.0513
2024-08-08 2024-06-30 13F FORTINET COM 34959E109 6,142 836 15.76 370 2.21 0.0380
2024-05-10 2024-03-31 13F FORTINET COM 34959E109 5,306 -1,389 -20.75 362 -7.42 0.0380
2024-02-12 2023-12-31 13F FORTINET COM 34959E109 6,695 1,105 19.77 392 19.21 0.0444
2023-10-20 2023-09-30 13F FORTINET COM 34959E109 5,590 -992 -15.07 328 -34.00 0.0467
2023-08-02 2023-06-30 13F FORTINET COM 34959E109 6,582 6,582 498 0.0797
2022-02-01 2021-12-31 13F FORTINET COM 34959E109 0 -1,370 -100.00 0 -100.00
2021-11-09 2021-09-30 13F FORTINET COM 34959E109 1,370 0 0.00 400 22.70 0.0511
2021-08-03 2021-06-30 13F FORTINET COM 34959E109 1,370 0 0.00 326 20.30 0.0437
2021-05-03 2021-03-31 13F FORTINET COM 34959E109 1,370 0 0.00 271 33.50 0.0605
2021-02-01 2020-12-31 13F FORTINET COM 34959E109 1,370 1,370 203 0.0564
2019-11-15 2019-09-30 13F/A-1 FORTINET INC COM USD0.001 COM 34959E109 0 -1,359 -100.00 0 -100.00
2019-08-06 2019-06-30 13F FORTINET INC COM USD0.001 COM 34959E109 1,359 0 0.00 103 -8.04 0.0653
2019-05-09 2019-03-31 13F FORTINET INC COM USD0.001 COM 34959E109 1,359 -119 -8.05 112 9.80 0.0736
2019-01-25 2018-12-31 13F FORTINET INC COM USD0.001 COM 34959E109 1,478 0 0.00 102 -23.88 0.0697
2018-10-23 2018-09-30 13F FORTINET INC COM USD0.001 COM 34959E109 1,478 5 0.34 134 48.89 0.0775
2018-08-10 2018-06-30 13F FORTINET INC COM USD0.001 COM 34959E109 1,473 5 0.34 90 15.38 0.0569
2018-05-10 2018-03-31 13F FORTINET INC COM USD0.001 COM 34959E109 1,468 0 0.00 78 23.81 0.0507
2018-02-14 2017-12-31 13F FORTINET INC COM USD0.001 COM 34959E109 1,468 1,468 63 0.0471
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2024-05-10 2024-03-31 13F FORTINET COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-12 2023-12-31 13F FORTINET COM Call 200 12 n/a n/a n/a
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.