Fortinet, Inc. (FTNT)

As of 31 August 2026, short interest in FTNT is 13,556,993 shares, down 827,635 shares over the last month. Over the last 48 readings it ranged from 12,574,079 shares (31 October 2024) to 23,558,764 shares (15 December 2025). The latest reading sits at the bottom of that range. At the reported average volume of 4.4M shares a day that is 3.0 days to cover.

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As of 11 September 2026, the short share of FTNT volume is 64.6%, up 3.5 points over the last five sessions. Over the last 52 readings it ranged from 25.0% (30 June 2026) to 67.0% (8 September 2026). The latest reading sits at the top of that range. The latest reading is 9.6 points above the 30-session average of 55.1%, on 920K shares reported.

As of 4 August 2026, the fails-to-deliver balance in FTNT is 1,474 shares, down 965 shares over the last settlement date. Over the last 52 readings it ranged from 1 share (30 March 2026) to 145,325 shares (30 July 2026). The latest reading sits at the bottom of that range.

Insiders at FTNT reported 11 open-market sells worth $26.8M in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: Ohlgart Christiane (Chief Financial Officer) on 2026-08-04.

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are the rarer, stronger signal.

3 Form 144 notices on file for FTNT worth $26.7M at the prices reported; 3 in the last 90 days worth $26.7M. Latest: Margrit Christiane Ohlgart filed on 2026-08-04 to sell 387 shares ($63K) from 2026-08-04.

1 holder above 5% has filed on FTNT, all on Schedule 13G (passive). The largest reported stake is The Vanguard Group at 0.0% of the class (0 shares), filed 2026-03-26 for an event on 2026-03-13.

8 of the 30 tracked managers held FTNT at their latest 13F, $3.47B in total at quarter-end prices. AQR Capital Management is the largest at $1.33B (0.5% of its portfolio) as of 2026-06-30. Over the prior quarter 7 added shares and 1 cut.

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

In Q2 2026 (quarter ended 2026-06-30) Fortinet, Inc. reported revenue of $2.05B, up 25.6% from the same quarter a year earlier, and net income of $606.3M (0.82 diluted EPS). In FY 2025 it generated $2.59B of operating cash flow and spent $2.29B on buybacks. As of 2026-06-30, cash was $2.93B against $496.9M of debt.

Quarterly, last 8 quarters

Fiscal years, with buybacks and dividends

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are cash paid to repurchase common stock in the year (XBRL PaymentsForRepurchaseOfCommonStock), not authorizations. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-07-28 from the cover page.