F5, INC. (FFIV)

As of 14 August 2026, short interest in FFIV is 1,240,342 shares, down 55,334 shares over the last month. Over the last 48 readings it ranged from 1,240,342 shares (14 August 2026) to 3,569,034 shares (15 December 2025). The latest reading sits at the bottom of that range. At the reported average volume of 670K shares a day that is 1.9 days to cover.

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As of 11 September 2026, the short share of FFIV volume is 44.4%, up 6.0 points over the last five sessions. Over the last 52 readings it ranged from 28.3% (4 August 2026) to 71.7% (9 September 2026). The latest reading is 5.8 points below the 30-session average of 50.3%, on 179K shares reported.

As of 11 August 2026, the fails-to-deliver balance in FFIV is 105 shares, up 36 shares over the last settlement date. Over the last 52 readings it ranged from 1 share (1 October 2025) to 68,256 shares (4 February 2026). The latest reading sits at the bottom of that range.

Insiders at FFIV reported 19 open-market sells worth $4.8M 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: FOUNTAIN THOMAS DEAN (EVP Global Services & Strategy) on 2026-08-05.

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.

7 Form 144 notices on file for FFIV worth $3.2M at the prices reported; 7 in the last 90 days worth $3.2M. Latest: FRANCOIS LOCOH-DONOU filed on 2026-08-05 to sell 3,782 shares ($1.6M) from 2026-08-05.

2 holders above 5% have filed on FFIV, all on Schedule 13G (passive). The largest reported stake is Vanguard Portfolio Management at 5.0% of the class (2,814,640 shares), filed 2026-07-31 for an event on 2026-06-30.

9 of the 30 tracked managers held FFIV at their latest 13F, $905.8M in total at quarter-end prices. AQR Capital Management is the largest at $385.0M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 3 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) F5, INC. reported revenue of $865.1M, up 10.9% from the same quarter a year earlier, and net income of $208.2M (3.62 diluted EPS). In FY 2025 it generated $949.7M of operating cash flow and spent $502.1M on buybacks.

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 2026-08-03 from the cover page.