Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionBalyasny Asset Management Llc
Latest Disclosed Ownership27,061 shares
Latest Disclosed Value $ 2,211,425
Balyasny Asset Management Llc ownership in FTNT / Fortinet, Inc.

On May 15, 2026 - Balyasny Asset Management Llc filed a 13F-HR form disclosing ownership of 27,061 shares of Fortinet, Inc. (MX:FTNT) valued at $2,211,425 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 28,571 shares of Fortinet, Inc.. This represents a change in shares of -5.29% during the quarter.

Balyasny Asset Management 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 and put options representing 4,700 of underlying shares valued at $384,084 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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.

MX: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)
2026-05-15 2026-03-31 13F FORTINET COM 34959E109 27,061 -1,510 -5.29 2,211 -2.51 0.0029
2026-02-17 2025-12-31 13F FORTINET COM 34959E109 28,571 11,102 63.55 2,269 54.50 0.0029
2025-11-14 2025-09-30 13F FORTINET COM 34959E109 17,469 3,867 28.43 1,469 2.09 0.0019
2025-08-14 2025-06-30 13F FORTINET COM 34959E109 13,602 -1,971 -12.66 1,438 -4.07 0.0022
2025-05-15 2025-03-31 13F FORTINET COM 34959E109 15,573 -9,226 -37.20 1,499 -36.02 0.0025
2025-02-14 2024-12-31 13F FORTINET COM 34959E109 24,799 1,037 4.36 2,343 27.20 0.0035
2024-11-14 2024-09-30 13F FORTINET COM 34959E109 23,762 -37,682 -61.33 1,843 -50.26 0.0030
2024-08-14 2024-06-30 13F FORTINET COM 34959E109 61,444 55,553 943.01 3,703 821.14 0.0065
2024-05-13 2024-03-31 13F FORTINET COM 34959E109 5,891 -42,471 -87.82 402 -85.80 0.0007
2024-02-14 2023-12-31 13F FORTINET COM 34959E109 48,362 -204,610 -80.88 2,831 -80.94 0.0053
2023-11-14 2023-09-30 13F FORTINET COM 34959E109 252,972 85,272 50.85 14,844 17.10 0.0303
2023-08-14 2023-06-30 13F FORTINET COM 34959E109 167,700 -761,740 -81.96 12,676 -79.48 0.0279
2023-05-15 2023-03-31 13F FORTINET COM 34959E109 929,440 926,292 29,424.78 61,771 40,272.55 0.1548
2023-02-14 2022-12-31 13F FORTINET COM 34959E109 3,148 -972,185 -99.68 154 -99.68 0.0004
2022-11-15 2022-09-30 13F FORTINET COM 34959E109 975,333 184,917 23.39 47,918 7.15 0.1470
2022-08-15 2022-06-30 13F FORTINET COM 34959E109 790,416 651,287 468.12 44,722 -5.94 0.1456
2022-05-16 2022-03-31 13F FORTINET COM 34959E109 139,129 118,241 566.07 47,546 533.36 0.1500
2022-02-14 2021-12-31 13F FORTINET COM 34959E109 20,888 6,781 48.07 7,507 82.21 0.0257
2021-12-01 2021-09-30 13F/A-1 FORTINET COM 34959E109 14,107 14,107 4,120 0.0172
2021-11-15 2021-09-30 13F FORTINET COM 34959E109 14,107 14,107 4,120 0.0169
2021-02-16 2020-12-31 13F FORTINET COM 34959E109 0 -56,686 -100.00 0 -100.00
2020-11-16 2020-09-30 13F FORTINET COM 34959E109 56,686 56,686 6,678 0.0490
2020-02-14 2019-12-31 13F FORTINET COM 34959E109 0 -47,980 -100.00 0 -100.00
2019-11-14 2019-09-30 13F FORTINET COM 34959E109 47,980 -78,413 -62.04 3,683 -62.07 0.0253
2019-08-14 2019-06-30 13F FORTINET COM 34959E109 126,393 112,350 800.04 9,711 723.66 0.0621
2019-05-15 2019-03-31 13F FORTINET COM 34959E109 14,043 -1,530 -9.82 1,179 7.47 0.0078
2019-02-14 2018-12-31 13F FORTINET COM 34959E109 15,573 7,566 94.49 1,097 48.44 0.0079
2018-11-14 2018-09-30 13F FORTINET COM 34959E109 8,007 -3,223 -28.70 739 5.42 0.0034
2018-08-14 2018-06-30 13F FORTINET COM 34959E109 11,230 -44,545 -79.87 701 -76.54 0.0032
2018-05-15 2018-03-31 13F FORTINET COM 34959E109 55,775 44,659 401.75 2,988 514.81 0.0125
2018-02-14 2017-12-31 13F Fortinet Common Stock 34959E109 11,116 -25,430 -69.58 486 -62.90 0.0015
2017-11-14 2017-09-30 13F Fortinet Common Stock 34959E109 36,546 439 1.22 1,310 -3.11 0.0051
2017-08-14 2017-06-30 13F Fortinet Common Stock 34959E109 36,107 36,107 1,352 0.0056
2017-05-15 2017-03-31 13F Fortinet Common Stock 34959E109 0 -35,800 -100.00 0 -100.00
2017-02-14 2016-12-31 13F Fortinet Common Stock 34959E109 35,800 13,628 61.46 1,078 54.00 0.0058
2016-08-15 2016-06-30 13F Fortinet Common Stock 34959E109 22,172 22,172 0.00 700 0.0045
2016-02-16 2015-12-31 13F Fortinet Common Stock 34959E109 0 -125,500 -100.00 0 -100.00
2015-11-16 2015-09-30 13F Fortinet Common Stock 34959E109 125,500 125,500 0.00 5,331 0.0394
2015-02-17 2014-12-31 13F Fortinet Common Stock 34959E109 0 -297,706 -100.00 0 -100.00
2014-11-14 2014-09-30 13F Fortinet Common Stock 34959E109 297,706 -407,726 -57.80 7,522 -57.57 0.0582
2014-08-15 2014-06-30 13F/A-1 Fortinet Common Stock 34959E109 705,432 651,835 17,728 0.2010
2014-08-25 2014-06-30 13F/A-2 Fortinet Common Stock 34959E109 705,432 0 17,728 0.2010
2014-09-19 2014-06-30 13F/A-3 Fortinet Common Stock 34959E109 705,432 651,835 1,216.18 17,728 1,629.56 0.2005
2014-08-14 2014-06-30 13F Fortinet Common Stock 34959E109 705,432 17,728
2014-02-14 2013-12-31 13F Fortinet Common Stock 34959E109 53,597 53,597 1,025 0.0134
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
(%)
2026-05-15 2026-03-31 13F FORTINET COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F FORTINET COM Call 8,300 2.47 659 -3.23 n/a n/a n/a
2025-11-14 2025-09-30 13F FORTINET COM Call 8,100 189.29 681 130.07 n/a n/a n/a
2025-08-14 2025-06-30 13F FORTINET COM Call 2,800 296 n/a n/a n/a
2025-02-14 2024-12-31 13F FORTINET COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F FORTINET COM Call 55,900 4,335 n/a n/a n/a
2024-02-14 2023-12-31 13F FORTINET COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-14 2023-09-30 13F FORTINET COM Call 260,000 147.62 15,257 92.24 n/a n/a n/a
2023-08-14 2023-06-30 13F FORTINET COM Call 105,000 7,937 n/a n/a n/a
2019-11-14 2019-09-30 13F FORTINET COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-08-14 2019-06-30 13F FORTINET COM Call 40,000 3,045 n/a n/a n/a
2019-05-15 2019-03-31 13F FORTINET COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-02-14 2018-12-31 13F FORTINET COM Call 187,500 275.00 13,206 207.69 n/a n/a n/a
2018-11-14 2018-09-30 13F FORTINET COM Call 50,000 -66.67 4,292 -54.17 n/a n/a n/a
2018-08-14 2018-06-30 13F FORTINET COM Call 150,000 9,365 n/a n/a n/a
2017-11-14 2017-09-30 13F Fortinet Common Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-08-14 2017-06-30 13F Fortinet Common Stock Call 300,000 500.00 11,232 485.61 n/a n/a n/a
2017-05-15 2017-03-31 13F Fortinet Common Stock Call 50,000 1,918 n/a n/a n/a
2016-05-16 2016-03-31 13F Fortinet Common Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-02-16 2015-12-31 13F Fortinet Common Stock Call 50,000 1,559 n/a n/a n/a
2014-11-14 2014-09-30 13F Fortinet Common Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2014-08-25 2014-06-30 13F/A Fortinet Common Stock Call 50,000 1,256 n/a n/a n/a
2014-08-15 2014-06-30 13F/A Fortinet Common Stock Call 50,000 1,257 n/a n/a n/a
2014-09-19 2014-06-30 13F/A Fortinet Common Stock Call 50,000 1,257 n/a n/a n/a
2014-08-14 2014-06-30 13F Fortinet Call Call 50,000 1,257 n/a n/a n/a
Disclosed Put 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
(%)
2026-05-15 2026-03-31 13F FORTINET COM Put 4,700 -82.59 384 -82.09 n/a n/a n/a
2026-02-17 2025-12-31 13F FORTINET COM Put 27,000 2,144 n/a n/a n/a
2025-11-14 2025-09-30 13F FORTINET COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F FORTINET COM Put 82,500 -57.14 8,722 -52.94 n/a n/a n/a
2025-05-15 2025-03-31 13F FORTINET COM Put 192,500 18,530 n/a n/a n/a
2025-02-14 2024-12-31 13F FORTINET COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F FORTINET COM Put 271,400 101.04 21,047 158.69 n/a n/a n/a
2024-08-14 2024-06-30 13F FORTINET COM Put 135,000 50.00 8,136 32.36 n/a n/a n/a
2024-05-13 2024-03-31 13F FORTINET COM Put 90,000 6,148 n/a n/a n/a
2024-02-14 2023-12-31 13F FORTINET COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-14 2023-09-30 13F FORTINET COM Put 360,000 242.86 21,125 166.18 n/a n/a n/a
2023-08-14 2023-06-30 13F FORTINET COM Put 105,000 7,937 n/a n/a n/a
2021-05-17 2021-03-31 13F FORTINET COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-16 2020-12-31 13F FORTINET COM Put 27,500 4,085 n/a n/a n/a
2018-11-14 2018-09-30 13F FORTINET COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-14 2018-06-30 13F FORTINET COM Put 36,000 2,247 n/a n/a n/a
2017-05-15 2017-03-31 13F Fortinet Common Stock Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-14 2016-12-31 13F Fortinet Common Stock Put 139,200 -7.20 4,193 -11.52 n/a n/a n/a
2016-08-15 2016-06-30 13F Fortinet Common Stock Put 150,000 100.00 4,739 106.31 n/a n/a n/a
2016-05-16 2016-03-31 13F Fortinet Common Stock Put 75,000 0.00 2,297 -1.75 n/a n/a n/a
2016-02-16 2015-12-31 13F Fortinet Common Stock Put 75,000 2,338 n/a n/a n/a
2015-02-17 2014-12-31 13F Fortinet Common Stock Put 0 -100.00 0 -100.00 n/a n/a n/a
2014-11-14 2014-09-30 13F Fortinet Common Stock Put 50,000 -50.00 1,263 -49.74 n/a n/a n/a
2014-09-19 2014-06-30 13F/A Fortinet Common Stock Put 100,000 2,513 n/a n/a n/a
2014-08-15 2014-06-30 13F/A Fortinet Common Stock Put 100,000 2,513 n/a n/a n/a
2014-08-25 2014-06-30 13F/A Fortinet Common Stock Put 100,000 2,513 n/a n/a n/a
2014-08-14 2014-06-30 13F Fortinet Put Put 100,000 2,513 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.