Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionBoothbay Fund Management, Llc
Latest Disclosed Ownership10,735 shares
Latest Disclosed Value $ 877,264
Boothbay Fund Management, Llc ownership in FTNT / Fortinet, Inc.

On May 15, 2026 - Boothbay Fund Management, Llc filed a 13F-HR form disclosing ownership of 10,735 shares of Fortinet, Inc. (MX:FTNT) valued at $877,264 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 7,365 shares of Fortinet, Inc.. This represents a change in shares of 45.76% during the quarter.

Boothbay Fund 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 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.

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 10,735 3,370 45.76 877 50.17 0.0114
2026-02-17 2025-12-31 13F FORTINET COM 34959E109 7,365 3,883 111.52 585 100.00 0.0087
2025-11-14 2025-09-30 13F FORTINET COM 34959E109 3,482 3,482 293 0.0043
2025-02-14 2024-12-31 13F FORTINET COM 34959E109 0 -42,119 -100.00 0 -100.00
2024-11-14 2024-09-30 13F FORTINET COM 34959E109 42,119 42,119 3,266 0.0743
2024-08-14 2024-06-30 13F FORTINET COM 34959E109 0 -6,405 -100.00 0 -100.00
2024-05-15 2024-03-31 13F FORTINET COM 34959E109 6,405 6,405 438 0.0084
2023-08-14 2023-06-30 13F FORTINET COM 34959E109 0 -13,089 -100.00 0 -100.00
2023-05-15 2023-03-31 13F FORTINET COM 34959E109 13,089 5,659 76.16 870 139.39 0.0178
2023-02-14 2022-12-31 13F FORTINET COM 34959E109 7,430 7,430 363 0.0084
2022-08-15 2022-06-30 13F FORTINET COM 34959E109 0 -611 -100.00 0 -100.00
2022-05-16 2022-03-31 13F FORTINET COM 34959E109 611 611 209 0.0049
2017-08-14 2017-06-30 13F Fortinet COM 34959E109 0 -6,186 -100.00 0 -100.00
2017-05-15 2017-03-31 13F Fortinet COM 34959E109 6,186 6,186 237 0.0442
2017-02-16 2016-12-31 13F/A-1 Fortinet EQUITIES 34959E109 0 -6,538 -100.00 0 -100.00 0.0000
2017-02-15 2016-12-31 13F Fortinet EQUITIES 34959E109 0 0
2016-11-14 2016-09-30 13F Fortinet EQUITIES 34959E109 6,538 6,538 0 0.0749
2017-07-18 2016-06-30 13F/A-2 FORTINET COM 34959E109 0 -11,200 -100.00 0 -100.00
2017-07-18 2016-06-30 13F/A-1 FORTINET COM 34959E109 0 -11,200 0
2016-08-15 2016-06-30 13F FORTINET COM 34959E109 0 0
2017-07-18 2016-03-31 13F/A-3 FORTINET COM 34959E109 11,200 11,200 343 0.2700
2016-05-16 2016-03-31 13F FORTINET COM 34959E109 11,200 343
2017-07-18 2015-09-30 13F/A-3 FORTINET COM 34959E109 0 -13,741 -100.00 0 -100.00
2016-06-09 2015-09-30 13F/A-2 FORTINET COM 34959E109 0 0 0
2016-06-09 2015-09-30 13F/A-1 FORTINET COM 34959E109 0 -13,741 0
2015-11-16 2015-09-30 13F FORTINET COM 34959E109 0 0
2016-06-09 2015-06-30 13F/A-2 FORTINET COM 34959E109 13,741 3,241 30.87 568 54.77 0.5553
2015-08-17 2015-06-30 13F/A-1 FORTINET COM 34959E109 13,741 13,741 568
2015-08-14 2015-06-30 13F FORTINET COM 34959E109 13,741 568
2016-06-09 2015-03-31 13F/A-2 FORTINET COM 34959E109 10,500 10,500 367 0.5227
2015-06-10 2015-03-31 13F/A-1 FORTINET COM 34959E109 9,498 -1,002 330
2015-05-15 2015-03-31 13F FORTINET COM 34959E109 9,498 330
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
(%)
2025-11-14 2025-09-30 13F FORTINET COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F FORTINET COM Call 52,300 200.57 5,529 230.29 n/a n/a n/a
2025-05-15 2025-03-31 13F FORTINET COM Call 17,400 -62.42 1,675 -61.73 n/a n/a n/a
2025-02-14 2024-12-31 13F FORTINET COM Call 46,300 4,374 n/a n/a n/a
2023-11-14 2023-09-30 13F FORTINET COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-14 2023-06-30 13F FORTINET COM Call 38,300 2,895 n/a n/a n/a
2017-07-18 2016-12-31 13F/A FORTINET COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-07-18 2016-09-30 13F/A FORTINET COM Call 11,400 421 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
(%)
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 37,800 2,931 n/a n/a n/a
2016-06-09 2015-09-30 13F/A FORTINET COM Put 0 0 n/a n/a n/a
2016-06-09 2015-09-30 13F/A FORTINET COM Put 0 0 n/a n/a n/a
2017-07-18 2015-09-30 13F/A FORTINET COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-11-16 2015-09-30 13F FORTINET COM Put 0 0 n/a n/a n/a
2015-08-17 2015-06-30 13F/A FORTINET COM Put 13,500 558 n/a n/a n/a
2017-07-18 2015-06-30 13F/A FORTINET COM Put 13,500 28.57 558 52.04 n/a n/a n/a
2015-08-14 2015-06-30 13F FORTINET COM Put 13,500 558 n/a n/a n/a
2017-07-18 2015-03-31 13F/A FORTINET COM Put 10,500 367 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.