F5 (FFIV)
F5 on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as computer communications equipment.
1.1M
Short interest
settlement 2026-10-15
2.1
Days to cover
unchanged vs prior
58.1%
Short share of volume
2026-10-28
1
Fails to deliver
settlement 2026-08-25
Tue 26 Jan
Next earnings
estimated date
-$5.3M
Insider flow, 90 days
0 buys, 22 sells
As of 2026-10-28.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in FFIV is 1,073,301 shares, down 277,079 shares over the last month. Over the last 48 readings it ranged from 1,073,301 shares (15 October 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 513K shares a day that is 2.1 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/ffiv" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 1,073,301 | -14.9% | 512,921 | 2.09 |
| 2026-09-30 | 1,260,728 | -6.6% | 592,300 | 2.13 |
| 2026-09-15 | 1,350,380 | -13.8% | 457,235 | 2.95 |
| 2026-08-31 | 1,567,256 | +26.4% | 462,996 | 3.39 |
| 2026-08-14 | 1,240,342 | -12.0% | 670,339 | 1.85 |
| 2026-07-31 | 1,409,686 | +8.8% | 753,346 | 1.87 |
| 2026-07-15 | 1,295,676 | -17.2% | 494,064 | 2.62 |
| 2026-06-30 | 1,564,617 | +13.0% | 749,625 | 2.09 |
| 2026-06-15 | 1,384,552 | -10.6% | 508,025 | 2.73 |
| 2026-05-29 | 1,549,023 | +6.4% | 839,858 | 1.84 |
| 2026-05-15 | 1,455,561 | -7.6% | 657,869 | 2.21 |
| 2026-04-30 | 1,576,004 | -9.3% | 913,361 | 1.73 |
| 2026-04-15 | 1,738,191 | -10.2% | 619,693 | 2.80 |
| 2026-03-31 | 1,936,331 | +3.2% | 876,764 | 2.21 |
| 2026-03-13 | 1,876,519 | +2.5% | 536,912 | 3.50 |
| 2026-02-27 | 1,830,697 | -12.5% | 715,430 | 2.56 |
| 2026-02-13 | 2,093,014 | -9.5% | 686,857 | 3.05 |
| 2026-01-30 | 2,312,144 | -23.9% | 1,438,938 | 1.61 |
| 2026-01-15 | 3,037,580 | -6.8% | 873,658 | 3.48 |
| 2025-12-31 | 3,259,087 | -8.7% | 1,298,853 | 2.51 |
| 2025-12-15 | 3,569,034 | +9.5% | 1,265,777 | 2.82 |
| 2025-11-28 | 3,260,584 | +24.9% | 1,360,631 | 2.40 |
| 2025-11-14 | 2,611,637 | +0.4% | 1,105,269 | 2.36 |
| 2025-10-31 | 2,600,788 | +0.9% | 1,370,035 | 1.90 |
| 2025-10-15 | 2,577,457 | +39.3% | 613,678 | 4.20 |
| 2025-09-30 | 1,850,952 | +4.0% | 431,301 | 4.29 |
| 2025-09-15 | 1,780,357 | -7.6% | 412,083 | 4.32 |
| 2025-08-29 | 1,926,995 | -2.6% | 388,441 | 4.96 |
| 2025-08-15 | 1,979,339 | +13.9% | 551,164 | 3.59 |
| 2025-07-31 | 1,738,075 | +3.5% | 556,737 | 3.12 |
| 2025-07-15 | 1,679,199 | -9.1% | 427,813 | 3.93 |
| 2025-06-30 | 1,846,816 | -1.6% | 548,702 | 3.37 |
| 2025-06-13 | 1,876,815 | +3.9% | 316,511 | 5.93 |
| 2025-05-30 | 1,807,080 | +9.9% | 433,171 | 4.17 |
| 2025-05-15 | 1,643,830 | -2.8% | 455,290 | 3.61 |
| 2025-04-30 | 1,691,064 | -0.1% | 661,796 | 2.56 |
| 2025-04-15 | 1,692,093 | +29.9% | 610,561 | 2.77 |
| 2025-03-31 | 1,302,472 | -12.9% | 554,703 | 2.35 |
| 2025-03-14 | 1,494,699 | -2.1% | 628,848 | 2.38 |
| 2025-02-28 | 1,526,661 | +1.4% | 519,166 | 2.94 |
| 2025-02-14 | 1,505,655 | -18.0% | 584,005 | 2.58 |
| 2025-01-31 | 1,836,343 | +12.9% | 785,933 | 2.34 |
| 2025-01-15 | 1,627,027 | +4.5% | 481,782 | 3.38 |
| 2024-12-31 | 1,556,901 | +5.0% | 410,111 | 3.80 |
| 2024-12-13 | 1,482,490 | -31.1% | 552,192 | 2.68 |
| 2024-11-29 | 2,153,104 | +2.9% | 461,461 | 4.67 |
| 2024-11-15 | 2,092,666 | -9.7% | 534,785 | 3.91 |
| 2024-10-31 | 2,317,604 | +9.2% | 861,016 | 2.69 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 28 October 2026, the short share of FFIV volume is 58.1%, up 31.0 points over the last five sessions. Over the last 30 readings it ranged from 27.2% (21 October 2026) to 69.9% (21 September 2026). The latest reading is 9.9 points above the 30-session average of 48.2%, on 1.7M shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-28 | 997K | 1.7M | 58.1% | 72,224 |
| 2026-10-27 | 337K | 492K | 68.5% | 0 |
| 2026-10-26 | 130K | 223K | 58.2% | 393 |
| 2026-10-23 | 117K | 269K | 43.4% | 10 |
| 2026-10-22 | 73K | 187K | 39.0% | 90 |
| 2026-10-21 | 96K | 353K | 27.2% | 948 |
| 2026-10-20 | 96K | 189K | 50.6% | 2 |
| 2026-10-19 | 135K | 222K | 60.8% | 0 |
| 2026-10-16 | 74K | 188K | 39.5% | 405 |
| 2026-10-15 | 72K | 215K | 33.2% | 4,463 |
| 2026-10-14 | 98K | 200K | 49.1% | 1,900 |
| 2026-10-13 | 133K | 256K | 51.9% | 64 |
| 2026-10-12 | 87K | 159K | 54.9% | 2 |
| 2026-10-09 | 61K | 216K | 28.3% | 1,083 |
| 2026-10-08 | 83K | 216K | 38.2% | 1,189 |
| 2026-10-07 | 77K | 130K | 58.9% | 210 |
| 2026-10-06 | 88K | 191K | 46.2% | 33 |
| 2026-10-05 | 61K | 140K | 43.5% | 9 |
| 2026-10-02 | 79K | 193K | 40.7% | 23 |
| 2026-10-01 | 152K | 246K | 62.0% | 0 |
| 2026-09-30 | 69K | 125K | 54.9% | 8 |
| 2026-09-29 | 109K | 317K | 34.3% | 493 |
| 2026-09-28 | 66K | 185K | 35.4% | 4 |
| 2026-09-25 | 58K | 176K | 32.9% | 150 |
| 2026-09-24 | 92K | 206K | 44.7% | 20 |
| 2026-09-23 | 112K | 217K | 51.3% | 245 |
| 2026-09-22 | 114K | 177K | 64.6% | 45 |
| 2026-09-21 | 186K | 266K | 69.9% | 185 |
| 2026-09-18 | 88K | 170K | 51.6% | 341 |
| 2026-09-17 | 107K | 198K | 53.9% | 326 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 25 August 2026, the fails-to-deliver balance in FFIV is 1 share, down 1 share over the last settlement date. Over the last 30 readings it ranged from 1 share (25 August 2026) to 68,256 shares (4 February 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-08-25 | 1 | $379.04 | $379 |
| 2026-08-21 | 2 | $377.79 | $756 |
| 2026-08-11 | 105 | $409.99 | $43K |
| 2026-07-30 | 69 | $386.95 | $27K |
| 2026-07-09 | 5,414 | $419.14 | $2.3M |
| 2026-05-26 | 497 | $393.63 | $196K |
| 2026-05-21 | 16,352 | $382.42 | $6.3M |
| 2026-05-14 | 404 | $357.40 | $144K |
| 2026-05-04 | 545 | $323.20 | $176K |
| 2026-04-30 | 84 | $328.15 | $28K |
| 2026-04-23 | 273 | $311.18 | $85K |
| 2026-04-20 | 117 | $310.87 | $36K |
| 2026-04-15 | 151 | $295.19 | $45K |
| 2026-04-14 | 149 | $298.07 | $44K |
| 2026-04-13 | 139 | $289.81 | $40K |
| 2026-04-10 | 324 | $294.59 | $95K |
| 2026-04-09 | 381 | $304.76 | $116K |
| 2026-03-26 | 100 | $297.86 | $30K |
| 2026-03-25 | 7,816 | $289.04 | $2.3M |
| 2026-03-24 | 40,310 | $289.75 | $11.7M |
| 2026-03-23 | 40,317 | $284.28 | $11.5M |
| 2026-03-17 | 20 | $283.73 | $6K |
| 2026-03-12 | 4,071 | $289.52 | $1.2M |
| 2026-03-05 | 7,117 | $286.12 | $2.0M |
| 2026-03-04 | 20 | $281.54 | $6K |
| 2026-02-23 | 117 | $278.39 | $33K |
| 2026-02-18 | 8,274 | $270.58 | $2.2M |
| 2026-02-12 | 75 | $282.67 | $21K |
| 2026-02-09 | 275 | $276.57 | $76K |
| 2026-02-04 | 68,256 | $274.63 | $18.7M |
Insider trades
SEC Form 4, newest first. JSONInsiders at FFIV reported 22 open-market sells worth $5.3M in the last 90 days and no open-market buys. Latest filing: Maddison John Anthony (Chief Product Mkting Officer) on 2026-09-14.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-14 | Maddison John Anthony | Chief Product Mkting Officer | Sell | 204 | $406.24 | $83K | 1K |
| 2026-09-14 | MONTOYA MICHAEL F | Chief Technology Ops Officer | Sell | 80 | $414.18 | $33K | 1K |
| 2026-09-14 | MONTOYA MICHAEL F | Chief Technology Ops Officer | Sell | 440 | $413.31 | $182K | 1K |
| 2026-09-14 | MONTOYA MICHAEL F | Chief Technology Ops Officer | Sell | 920 | $412.38 | $379K | 2K |
| 2026-09-14 | MONTOYA MICHAEL F | Chief Technology Ops Officer | Sell | 1K | $411.50 | $483K | 3K |
| 2026-09-14 | MONTOYA MICHAEL F | Chief Technology Ops Officer | Sell | 277 | $410.37 | $114K | 4K |
| 2026-09-14 | MONTOYA MICHAEL F | Chief Technology Ops Officer | Sell | 240 | $408.96 | $98K | 4K |
| 2026-09-14 | MONTOYA MICHAEL F | Chief Technology Ops Officer | Sell | 1K | $406.24 | $526K | 4K |
| 2026-08-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 200 | $415.97 | $83K | 147K |
| 2026-08-05 | FOUNTAIN THOMAS DEAN | EVP Global Services & Strategy | Sell | 1K | $414.63 | $501K | 8K |
| 2026-08-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 40 | $416.83 | $17K | 147K |
| 2026-08-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 284 | $415.03 | $118K | 147K |
| 2026-08-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 320 | $414.10 | $133K | 148K |
| 2026-08-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 996 | $412.90 | $411K | 148K |
| 2026-08-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 642 | $411.82 | $264K | 149K |
| 2026-08-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 1K | $410.94 | $452K | 149K |
| 2026-08-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 200 | $409.68 | $82K | 151K |
| 2026-08-03 | OKEKE ANGELIQUE M | EVP, General Counsel | Sell | 515 | $404.49 | $208K | 2K |
| 2026-08-03 | Maddison John Anthony | Chief Product Mkting Officer | Sell | 1K | $405.85 | $406K | 1K |
| 2026-08-03 | Werner Edward Cooper | Chief Financial Officer | Sell | 599 | $405.92 | $243K | 406 |
| 2026-08-03 | WHALEN CHAD MICHAEL | EVP, Worldwide Sales | Sell | 703 | $404.86 | $285K | 22K |
| 2026-08-03 | ANAND KUNAL | Chief Technology Officer | Sell | 392 | $404.63 | $159K | 13K |
| 2026-08-01 | OKEKE ANGELIQUE M | EVP, General Counsel | Tax withholding | 415 | $402.57 | $167K | 3K |
| 2026-08-01 | OKEKE ANGELIQUE M | EVP, General Counsel | Exercise or conversion | 1K | $0.00 | $0 | 3K |
| 2026-08-01 | Maddison John Anthony | Chief Product Mkting Officer | Tax withholding | 250 | $402.57 | $101K | 2K |
| 2026-08-01 | Maddison John Anthony | Chief Product Mkting Officer | Exercise or conversion | 454 | $0.00 | $0 | 3K |
| 2026-08-01 | Werner Edward Cooper | Chief Financial Officer | Tax withholding | 388 | $402.57 | $156K | 1K |
| 2026-08-01 | Werner Edward Cooper | Chief Financial Officer | Exercise or conversion | 987 | $0.00 | $0 | 1K |
| 2026-08-01 | MONTOYA MICHAEL F | Chief Technology Ops Officer | Tax withholding | 840 | $402.57 | $338K | 6K |
| 2026-08-01 | MONTOYA MICHAEL F | Chief Technology Ops Officer | Exercise or conversion | 2K | $0.00 | $0 | 7K |
| 2026-08-01 | WHALEN CHAD MICHAEL | EVP, Worldwide Sales | Tax withholding | 911 | $402.57 | $367K | 22K |
| 2026-08-01 | WHALEN CHAD MICHAEL | EVP, Worldwide Sales | Exercise or conversion | 2K | $0.00 | $0 | 23K |
| 2026-08-01 | FOUNTAIN THOMAS DEAN | EVP Global Services & Strategy | Tax withholding | 1K | $402.57 | $601K | 9K |
| 2026-08-01 | FOUNTAIN THOMAS DEAN | EVP Global Services & Strategy | Exercise or conversion | 3K | $0.00 | $0 | 11K |
| 2026-08-01 | Locoh-Donou Francois | President, CEO & Director | Tax withholding | 2K | $402.57 | $987K | 151K |
| 2026-08-01 | Locoh-Donou Francois | President, CEO & Director | Exercise or conversion | 6K | $0.00 | $0 | 153K |
| 2026-08-01 | ANAND KUNAL | Chief Technology Officer | Tax withholding | 506 | $402.57 | $204K | 13K |
| 2026-08-01 | ANAND KUNAL | Chief Technology Officer | Exercise or conversion | 1K | $0.00 | $0 | 13K |
| 2026-07-30 | MEHTA NIKHIL RAMESH | Director | Sell | 198 | $391.72 | $78K | 7K |
| 2026-07-30 | MEHTA NIKHIL RAMESH | Director | Sell | 458 | $390.93 | $179K | 7K |
| 2026-07-30 | MEHTA NIKHIL RAMESH | Director | Sell | 992 | $390.07 | $387K | 8K |
| 2026-07-30 | MEHTA NIKHIL RAMESH | Director | Sell | 692 | $388.68 | $269K | 9K |
| 2026-07-30 | MEHTA NIKHIL RAMESH | Director | Sell | 717 | $388.10 | $278K | 9K |
| 2026-07-30 | MEHTA NIKHIL RAMESH | Director | Sell | 943 | $387.07 | $365K | 10K |
| 2026-06-10 | Buse Elizabeth | Director | Sell | 40 | $401.05 | $16K | 5K |
| 2026-06-10 | Buse Elizabeth | Director | Sell | 120 | $400.58 | $48K | 5K |
| 2026-06-10 | Buse Elizabeth | Director | Sell | 626 | $399.29 | $250K | 5K |
| 2026-06-10 | Buse Elizabeth | Director | Sell | 214 | $398.53 | $85K | 6K |
| 2026-06-02 | Werner Edward Cooper | Chief Financial Officer | Sell | 3K | $400.00 | $1.0M | 406 |
| 2026-05-08 | Werner Edward Cooper | Chief Financial Officer | Sell | 2K | $350.00 | $525K | 3K |
| 2026-05-08 | WHALEN CHAD MICHAEL | EVP, Worldwide Sales | Sell | 6K | $350.19 | $2.2M | 21K |
| 2026-05-05 | FOUNTAIN THOMAS DEAN | EVP Global Services & Strategy | Sell | 1K | $330.58 | $439K | 8K |
| 2026-05-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 383 | $339.88 | $130K | 147K |
| 2026-05-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 480 | $338.60 | $163K | 147K |
| 2026-05-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 1K | $337.78 | $428K | 148K |
| 2026-05-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 1K | $336.92 | $449K | 149K |
| 2026-05-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 80 | $335.27 | $27K | 150K |
| 2026-05-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 200 | $332.52 | $67K | 151K |
| 2026-05-05 | Locoh-Donou Francois | President, CEO & Director | Sell | 40 | $331.05 | $13K | 151K |
| 2026-05-04 | OKEKE ANGELIQUE M | EVP, General Counsel | Sell | 842 | $322.33 | $271K | 2K |
| 2026-05-04 | Maddison John Anthony | Chief Product Mkting Officer | Sell | 1K | $322.33 | $322K | 2K |
| 2026-05-04 | Werner Edward Cooper | Chief Financial Officer | Sell | 599 | $322.33 | $193K | 4K |
| 2026-05-04 | WHALEN CHAD MICHAEL | EVP, Worldwide Sales | Sell | 704 | $330.30 | $233K | 27K |
| 2026-05-04 | ANAND KUNAL | Chief Technology Officer | Sell | 3K | $322.33 | $1.0M | 12K |
| 2026-05-01 | OKEKE ANGELIQUE M | EVP, General Counsel | Tax withholding | 697 | $323.20 | $225K | 3K |
| 2026-05-01 | OKEKE ANGELIQUE M | EVP, General Counsel | Exercise or conversion | 2K | $0.00 | $0 | 4K |
| 2026-05-01 | Maddison John Anthony | Chief Product Mkting Officer | Tax withholding | 230 | $323.20 | $74K | 3K |
| 2026-05-01 | Maddison John Anthony | Chief Product Mkting Officer | Exercise or conversion | 454 | $0.00 | $0 | 3K |
| 2026-05-01 | Werner Edward Cooper | Chief Financial Officer | Tax withholding | 388 | $323.20 | $125K | 5K |
| 2026-05-01 | Werner Edward Cooper | Chief Financial Officer | Exercise or conversion | 987 | $0.00 | $0 | 5K |
| 2026-05-01 | MONTOYA MICHAEL F | Chief Technology Ops Officer | Tax withholding | 840 | $323.20 | $271K | 4K |
| 2026-05-01 | MONTOYA MICHAEL F | Chief Technology Ops Officer | Exercise or conversion | 2K | $0.00 | $0 | 5K |
| 2026-05-01 | WHALEN CHAD MICHAEL | EVP, Worldwide Sales | Tax withholding | 910 | $323.20 | $294K | 28K |
| 2026-05-01 | WHALEN CHAD MICHAEL | EVP, Worldwide Sales | Exercise or conversion | 2K | $0.00 | $0 | 29K |
| 2026-05-01 | FOUNTAIN THOMAS DEAN | EVP Global Services & Strategy | Tax withholding | 1K | $323.20 | $444K | 9K |
| 2026-05-01 | FOUNTAIN THOMAS DEAN | EVP Global Services & Strategy | Exercise or conversion | 3K | $0.00 | $0 | 11K |
| 2026-05-01 | Locoh-Donou Francois | President, CEO & Director | Tax withholding | 2K | $323.20 | $792K | 151K |
| 2026-05-01 | Locoh-Donou Francois | President, CEO & Director | Exercise or conversion | 6K | $0.00 | $0 | 153K |
| 2026-05-01 | ANAND KUNAL | Chief Technology Officer | Tax withholding | 4K | $323.20 | $1.3M | 15K |
| 2026-05-01 | ANAND KUNAL | Chief Technology Officer | Exercise or conversion | 10K | $0.00 | $0 | 19K |
| 2026-03-25 | Werner Edward Cooper | Chief Financial Officer | Sell | 1K | $300.00 | $300K | 4K |
| 2026-03-25 | Locoh-Donou Francois | President, CEO & Director | Sell | 3K | $300.00 | $1.0M | 147K |
| 2026-03-11 | Gonzalez Julie Marie | Director | Exercise or conversion | 934 | $0.00 | $0 | 1K |
| 2026-03-11 | MONTOYA MICHAEL F | Chief Technology Ops Officer | Tax withholding | 367 | $289.52 | $106K | 3K |
| 2026-03-11 | MONTOYA MICHAEL F | Chief Technology Ops Officer | Exercise or conversion | 934 | $0.00 | $0 | 4K |
| 2026-03-11 | MEHTA NIKHIL RAMESH | Director | Exercise or conversion | 934 | $0.00 | $0 | 11K |
| 2026-03-11 | McReynolds Maya | Director | Exercise or conversion | 934 | $0.00 | $0 | 1K |
| 2026-03-11 | HIGGINSON ALAN | Director | Exercise or conversion | 934 | $0.00 | $0 | 8K |
| 2026-03-11 | Erwin Tami A. | Director | Exercise or conversion | 934 | $0.00 | $0 | 3K |
| 2026-03-11 | Dreyer Michael L | Director | Exercise or conversion | 934 | $0.00 | $0 | 2K |
| 2026-03-11 | Combes Michel | Director | Exercise or conversion | 934 | $0.00 | $0 | 6K |
| 2026-03-11 | Buse Elizabeth | Director | Exercise or conversion | 934 | $0.00 | $0 | 6K |
| 2026-03-11 | Budnik Marianne | Director | Exercise or conversion | 934 | $0.00 | $0 | 2K |
| 2026-03-06 | WHALEN CHAD MICHAEL | EVP, Worldwide Sales | Sell | 688 | $277.05 | $191K | 26K |
| 2026-03-04 | Werner Edward Cooper | Chief Financial Officer | Sell | 80 | $284.74 | $23K | 6K |
| 2026-03-04 | Locoh-Donou Francois | President, CEO & Director | Sell | 120 | $286.67 | $34K | 150K |
| 2026-03-04 | Werner Edward Cooper | Chief Financial Officer | Sell | 209 | $286.39 | $60K | 5K |
| 2026-03-04 | Werner Edward Cooper | Chief Financial Officer | Sell | 80 | $282.23 | $23K | 6K |
| 2026-03-04 | Werner Edward Cooper | Chief Financial Officer | Sell | 560 | $280.56 | $157K | 6K |
| 2026-03-04 | Werner Edward Cooper | Chief Financial Officer | Sell | 40 | $278.21 | $11K | 6K |
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 rarer.
Planned sales (Form 144)
Newest first. JSON50 Form 144 notices on file for FFIV worth $27.4M at the prices reported; 9 in the last 90 days worth $5.1M. Latest: JOHN MADDISON filed on 2026-09-14 to sell 204 shares ($84K) from 2026-09-14.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-09-14 | JOHN MADDISONOfficer | 204 | $84K | 0.000% | 2026-09-14 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-14 | MICHAEL MONTOYAOfficer | 4K | $1.8M | 0.008% | 2026-09-14 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-05 | FRANCOIS LOCOH-DONOUDirector, Officer | 4K | $1.6M | 0.007% | 2026-08-05 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-05 | THOMAS FOUNTAINOfficer | 1K | $498K | 0.002% | 2026-08-05 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-03 | ANGELIQUE OKEKEOfficer | 515 | $34K | 0.001% | 2026-08-03 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-03 | EDWARD WERNEROfficer | 599 | $241K | 0.001% | 2026-08-03 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-03 | CHAD WHALENOfficer | 703 | $283K | 0.001% | 2026-08-03 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-03 | JOHN MADDISONOfficer | 1K | $403K | 0.002% | 2026-08-03 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-03 | KUNAL ANANDOfficer | 392 | $158K | 0.001% | 2026-08-03 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-02 | EDWARD WERNEROfficer | 3K | $989K | 0.004% | 2026-06-02 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-28 | Dreyer Michael LDirector | 1K | $496K | 0.002% | 2026-05-28 | Charles Schwab Corp |
| 2026-05-27 | ALAN J HIGGINSONDirector | 934 | $362K | 0.002% | 2026-05-27 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-08 | EDWARD WERNEROfficer | 2K | $518K | 0.003% | 2026-05-08 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-08 | CHAD WHALENOfficer | 6K | $2.1M | 0.011% | 2026-05-08 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-05 | FRANCOIS LOCOH-DONOUDirector, Officer | 4K | $1.2M | 0.007% | 2026-05-05 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-05 | THOMAS FOUNTAINOfficer | 1K | $438K | 0.002% | 2026-05-05 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-04 | JOHN MADDISONOfficer | 1K | $323K | 0.002% | 2026-05-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-04 | ANGELIQUE OKEKEOfficer | 842 | $272K | 0.001% | 2026-05-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-04 | EDWARD C WERNEROfficer | 599 | $194K | 0.001% | 2026-05-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-04 | CHAD WHALENOfficer | 704 | $228K | 0.001% | 2026-05-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-04 | KUNAL ANANDOfficer | 3K | $1.0M | 0.006% | 2026-05-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-25 | EDWARD C WERNEROfficer | 1K | $289K | 0.002% | 2026-03-25 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-25 | FRANCOIS LOCOH-DONOUDirector, Officer | 3K | $964K | 0.006% | 2026-03-25 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-06 | CHAD WHALENOfficer | 688 | $195K | 0.001% | 2026-03-06 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-04 | FRANCOIS LOCOH-DONOUDirector, Officer | 4K | $1.1M | 0.007% | 2026-03-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-04 | EDWARD C WERNEROfficer | 969 | $273K | 0.002% | 2026-03-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-02 | LYRA SCHRAMMOfficer | 177 | $49K | 0.000% | 2026-03-02 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-20 | Dreyer Michael LDirector | 3K | $865K | 0.005% | 2026-02-20 | Charles Schwab Corp. |
| 2026-02-19 | ALAN J HIGGINSONDirector | 2K | $487K | 0.003% | 2026-02-19 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-10 | THOMAS FOUNTAINOfficer | 1K | $362K | 0.002% | 2026-02-10 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-10 | ANGELIQUE OKEKEOfficer | 386 | $108K | 0.001% | 2026-02-10 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-10 | JOHN MADDISONOfficer | 1K | $279K | 0.002% | 2026-02-10 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-10 | KUNAL ANANDOfficer | 377 | $105K | 0.001% | 2026-02-10 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-03 | LYRA SCHRAMMOfficer | 199 | $56K | 0.000% | 2026-02-03 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-01-26 | THOMAS D FOUNTAINOfficer | 3K | $875K | 0.006% | 2026-01-26 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-01-20 | THOMAS D FOUNTAINOfficer | 1K | $292K | 0.002% | 2026-01-20 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-01-12 | THOMAS D FOUNTAINOfficer | 1K | $294K | 0.002% | 2026-01-12 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-01-05 | THOMAS D FOUNTAINOfficer | 1K | $293K | 0.002% | 2026-01-05 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-12-29 | THOMAS D FOUNTAINOfficer | 1K | $289K | 0.002% | 2025-12-29 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-12-22 | THOMAS D FOUNTAINOfficer | 1K | $286K | 0.002% | 2025-12-22 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-12-15 | THOMAS D FOUNTAINOfficer | 1K | $294K | 0.002% | 2025-12-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-12-08 | THOMAS D FOUNTAINOfficer | 1K | $276K | 0.002% | 2025-12-08 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-12-01 | FRANCOIS LOCOH-DONOUOfficer, Director | 1K | $308K | 0.002% | 2025-12-01 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-12-01 | THOMAS D FOUNTAINOfficer | 1K | $263K | 0.002% | 2025-12-01 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-24 | THOMAS D FOUNTAINOfficer | 1K | $261K | 0.002% | 2025-11-24 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-18 | THOMAS D FOUNTAINOfficer | 1K | $252K | 0.002% | 2025-11-18 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-04 | LYRA SCHRAMMOfficer | 1K | $262K | 0.002% | 2025-11-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-03 | THOMAS D FOUNTAINOfficer | 8K | $2.1M | 0.014% | 2025-11-03 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-03 | CHAD WHALENOfficer | 9K | $2.4M | 0.016% | 2025-11-03 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-03 | FRANCOIS LOCOH-DONOUOfficer, Director | 1K | $329K | 0.002% | 2025-11-03 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON1 holder reports 5% or more of FFIV in its latest filing, on Schedule 13G (passive). The holder is Vanguard Capital Management at 7.5% of the class (4,234,436 shares), filed 2026-04-29 for an event on 2026-03-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-12 | 13G/Ano. 7 | Hotchkis and Wiley Capital Management, LLCinvestment adviser | 2.1M | 3.6% | 2026-06-30 |
| 2026-07-31 | 13G/Ano. 1 | Vanguard Portfolio Managementinvestment adviser | 2.8M | 5.0% | 2026-06-30 |
| 2026-04-30 | 13G/Ano. 1 | The Charger Corporationparent holding company | 1.7M | 2.9% | 2026-03-31 |
| 2026-04-30 | 13G/Ano. 1 | First Trust Advisors L.P.investment adviser | 1.7M | 2.9% | 2026-03-31 |
| 2026-04-30 | 13G/Ano. 1 | First Trust Portfolios L.P.broker-dealer | 1.7M | 2.9% | 2026-03-31 |
| 2026-04-29 | 13G | Vanguard Capital Managementinvestment adviser | 4.2M | 7.5% | 2026-03-31 |
| 2026-03-26 | 13G/Ano. 15 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
13F holders
Tracked managers holding FFIV at their latest 13F. JSON9 of the 30 tracked managers held FFIV at their latest 13F, $798.7M 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 6 added shares and 3 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| AQR Capital Management | 2026-06-30 | 926K | $385.0M | 0.13% | +243K |
| Millennium Management | 2026-06-30 | 371K | $154.2M | 0.06% | +261K |
| Point72 Asset Management | 2026-06-30 | 242K | $100.7M | 0.11% | -240K |
| Two Sigma Investments | 2026-06-30 | 138K | $57.2M | 0.04% | +122K |
| Citadel Advisors | 2026-06-30 | 106K | $44.0M | 0.01% | -201K |
| Fisher Asset Management | 2026-06-30 | 78K | $32.6M | 0.01% | -1K |
| Renaissance Technologies | 2026-06-30 | 30K | $12.6M | 0.02% | new |
| Duquesne Family Office | 2026-06-30 | 22K | $9.2M | 0.18% | new |
| D. E. Shaw & Co. | 2026-06-30 | 8K | $3.2M | 0.00% | +6K |
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.
Financials
SEC XBRL, as filed. JSONIn Q3 FY 2026 (quarter ended 2026-06-30) F5 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.
- Cash
- $1.61B
- Total assets
- $6.83B
- Shares outstanding
- 56,627,182
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q3 FY 2026 | 2026-06-30 | $865.1M | $208.2M | 24.1% | 3.62 |
| Q2 FY 2026 | 2026-03-31 | $811.7M | $147.8M | 18.2% | 2.58 |
| Q1 FY 2026 | 2025-12-31 | $822.5M | $180.1M | 21.9% | 3.10 |
| Q4 FY 2025derived | 2025-09-30 | $810.1M | $190.5M | 23.5% | n/a |
| Q3 FY 2025 | 2025-06-30 | $780.4M | $189.9M | 24.3% | 3.25 |
| Q2 FY 2025 | 2025-03-31 | $731.1M | $145.5M | 19.9% | 2.48 |
| Q1 FY 2025 | 2024-12-31 | $766.5M | $166.4M | 21.7% | 2.82 |
| Q4 FY 2024derived | 2024-09-30 | $746.7M | $165.3M | 22.1% | n/a |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-09-30 | $3.09B | $692.4M | $949.7M | $43.3M | $502.1M | n/a |
| FY 2024 | 2024-09-30 | $2.82B | $566.8M | $792.4M | $30.4M | $500.6M | n/a |
| FY 2023 | 2023-09-30 | $2.81B | $394.9M | $653.4M | $54.2M | $350.0M | n/a |
| FY 2022 | 2022-09-30 | $2.70B | $322.2M | $442.6M | $33.6M | $500.0M | n/a |
| FY 2021 | 2021-09-30 | $2.60B | $331.2M | $645.2M | $30.7M | $500.0M | n/a |
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 the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-08-03 from the cover page.
What this page is
F5 in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows F5 (FFIV), SEC CIK 1048695, listed on Nasdaq, classified by the SEC as computer communications equipment. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-28.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-08-25.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-09-14.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-12.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-10-27.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-14.JSON and CSV
- Company record
- EDGAR filing index for CIK 1048695Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
Other companies the SEC classifies as computer communications equipment
Other company pages
Datasets
Frequently Asked Questions
How much of FFIV is sold short?
1,073,301 shares were held short at the 2026-10-15 settlement, 2.1 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is FFIV's daily short volume?
On 2026-10-28, 997,211 of the 1,716,140 FFIV shares reported to FINRA were sold short, 58.1% of the day's reported volume. Short volume is a flow for one day, not a position.
Does FFIV have fails to deliver?
The SEC's latest file shows 1 FFIV shares failed to deliver at settlement 2026-08-25. Fails are reported per settlement date and published twice a month with a lag.
Are FFIV insiders buying or selling?
Insiders at FFIV reported 22 open-market sells worth $5.3M in the last 90 days and no open-market buys. Latest filing: Maddison John Anthony (Chief Product Mkting Officer) on 2026-09-14.
Have FFIV insiders filed to sell?
50 Form 144 notices on file for FFIV worth $27.4M at the prices reported; 9 in the last 90 days worth $5.1M. Latest: JOHN MADDISON filed on 2026-09-14 to sell 204 shares ($84K) from 2026-09-14.
Who owns 5% or more of FFIV?
1 holder reports 5% or more of FFIV in its latest filing, on Schedule 13G (passive). The holder is Vanguard Capital Management at 7.5% of the class (4,234,436 shares), filed 2026-04-29 for an event on 2026-03-31.
What did FFIV report last quarter?
In Q3 FY 2026 (quarter ended 2026-06-30) F5 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.
Which tracked 13F managers own FFIV?
9 of the 30 tracked 13F managers held FFIV shares at their latest filing, $798.7M in all. The largest: Cliff Asness's AQR Capital Management (926K shares, $385.0M), Izzy Englander's Millennium Management (371K shares, $154.2M), Steve Cohen's Point72 Asset Management (242K shares, $100.7M), Two Sigma Investments (138K shares, $57.2M), Ken Griffin's Citadel Advisors (106K shares, $44.0M), Ken Fisher's Fisher Asset Management (78K shares, $32.6M). The table above lists all 9.
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.