F5 INC FFIV
COM · Common Stock · CUSIP 315616102 · ISIN US3156161024
Multi-cloud cybersecurity and application delivery company
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($26.0m this quarter). Holder counts are more reliable. Shares outstanding: 56.4m as of 2026-04-30, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $288.57. Options: 17 managers hold calls ($80.1m notional), 12 hold puts ($64.3m).
Trends to Q1 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 500 |
| Q4 2022 | 523 |
| Q1 2023 | 497 |
| Q2 2023 | 499 |
| Q3 2023 | 513 |
| Q4 2023 | 524 |
| Q1 2024 | 535 |
| Q2 2024 | 534 |
| Q3 2024 | 590 |
| Q4 2024 | 648 |
| Q1 2025 | 686 |
| Q2 2025 | 726 |
| Q3 2025 | 762 |
| Q4 2025 | 678 |
| Q1 2026 | 726 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 266 | 248 |
| Q3 2024 | 284 | 251 |
| Q4 2024 | 292 | 266 |
| Q1 2025 | 352 | 291 |
| Q2 2025 | 379 | 289 |
| Q3 2025 | 387 | 296 |
| Q4 2025 | 241 | 481 |
| Q1 2026 | 370 | 302 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $129.9m | $35.5m | 0.27 |
| Q3 2025 | $87.7m | $61.5m | 0.70 |
| Q4 2025 | $123.8m | $73.6m | 0.59 |
| Q1 2026 | $80.1m | $64.3m | 0.80 |
Biggest buyers
| ALLIANCEBERNSTEIN L.P. | Added | +621.7k |
| AMERIPRISE FINANCIAL INC | Added | +586.9k |
| VICTORY CAPITAL MANAGEMENT INC | Added | +548.6k |
| Jericho Capital Asset Management L.P. | Added | +372.0k |
| JPMORGAN CHASE & CO | Added | +319.8k |
| Freestone Grove Partners LP | New | +283.5k |
| BNP PARIBAS FINANCIAL MARKETS | Added | +279.0k |
| Pacer Advisors, Inc. | Added | +184.8k |
| Squarepoint Ops LLC | Added | +146.3k |
| Quantinno Capital Management LP | Added | +136.0k |
Biggest sellers
| FIRST TRUST ADVISORS LP | Reduced | -1.3m |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | Reduced | -894.1k |
| HSBC HOLDINGS PLC | Reduced | -584.0k |
| DEUTSCHE BANK AG\ | Reduced | -553.4k |
| NOMURA HOLDINGS INC | Reduced | -495.0k |
| UBS Group AG | Reduced | -450.8k |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | -328.1k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Sold out | -271.8k |
| Amundi | Reduced | -224.2k |
| NORTHERN TRUST CORP | Reduced | -212.0k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $37.9m131.1k shares |
| MILLENNIUM MANAGEMENT LLC | Added | $11.1m38.5k shares |
| JANE STREET GROUP, LLC | Reduced | $9.3m32.3k shares |
| CITADEL ADVISORS LLC | Added | $7.1m24.7k shares |
| IMC-Chicago, LLC | Reduced | $5.6m19.2k shares |
| Squarepoint Ops LLC | Reduced | $2.0m7.0k shares |
| Walleye Trading LLC | Added | $1.9m6.6k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.6m5.7k shares |
| Walleye Capital LLC | Added | $1.0m3.5k shares |
| TUDOR INVESTMENT CORP ET AL | Reduced | $665.5k2.3k shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $25.8m89.3k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $17.8m61.5k shares |
| JANE STREET GROUP, LLC | Added | $5.9m20.3k shares |
| MILLENNIUM MANAGEMENT LLC | Added | $4.3m15.0k shares |
| IMC-Chicago, LLC | Added | $4.1m14.1k shares |
| LOGAN CAPITAL MANAGEMENT INC | New | $1.9m6.5k shares |
| SIMPLEX TRADING, LLC | Added | $1.7m5.9k shares |
| Squarepoint Ops LLC | New | $1.1m3.7k shares |
| PEAK6 LLC | Reduced | $607.6k2.1k shares |
| TUDOR INVESTMENT CORP ET AL | Reduced | $578.7k2.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 7.5% |
Fell to 5% or below in the last year: HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC (3.6%, 2026-08-12), VANGUARD PORTFOLIO MANAGEMENT LLC (5.0%, 2026-07-31; now reported by VANGUARD CAPITAL MANAGEMENT LLC), FIRST TRUST PORTFOLIOS LP (2.9%, 2026-04-30), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales in Q1 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2024 | 0 | — | 5 | $2.1m | $1.2m |
| Q3 2024 | 0 | — | 6 | $3.1m | $2.9m |
| Q4 2024 | 0 | — | 6 | $4.3m | $4.1m |
| Q1 2025 | 0 | — | 6 | $5.7m | $4.9m |
| Q2 2025 | 0 | — | 6 | $3.2m | $1.8m |
| Q3 2025 | 0 | — | 4 | $4.2m | $4.2m |
| Q4 2025 | 0 | — | 5 | $8.0m | $7.4m |
| Q1 2026 | 0 | — | 10 | $6.8m | $5.5m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-03-25 | Locoh-Donou Francois President, CEO & Director, director | Sold plan | $1.0m3.3k shares |
| 2026-03-25 | Werner Edward Cooper Chief Financial Officer | Sold plan | $300.0k1.0k shares |
| 2026-03-06 | WHALEN CHAD MICHAEL EVP, Worldwide Sales | Sold plan | $190.6k688 shares |
| 2026-03-04 | Locoh-Donou Francois President, CEO & Director, director | Sold plan | $1.1m3.8k shares |
| 2026-03-04 | Werner Edward Cooper Chief Financial Officer | Sold plan | $273.5k969 shares |
| 2026-02-20 | Dreyer Michael L Director | Sold | $866.2k3.1k shares |
| 2026-02-19 | HIGGINSON ALAN Director | Sold | $487.2k1.8k shares |
| 2026-02-10 | FOUNTAIN THOMAS DEAN EVP Global Services & Strategy | Sold plan | $361.0k1.3k shares |
| 2026-02-10 | Maddison John Anthony Chief Product Mkting Officer | Sold plan | $280.7k1.0k shares |
| 2026-02-10 | OKEKE ANGELIQUE M EVP, General Counsel | Sold plan | $107.4k386 shares |
| 2026-02-10 | ANAND KUNAL Chief Technology Officer | Sold plan | $104.9k377 shares |
| 2026-02-03 | SCHRAMM LYRA AMBER Chief People Officer | Sold plan | $56.0k199 shares |
| 2026-01-26 | FOUNTAIN THOMAS DEAN EVP Global Services & Strategy | Sold plan | $875.4k3.3k shares |
| 2026-01-20 | FOUNTAIN THOMAS DEAN EVP Global Services & Strategy | Sold plan | $291.6k1.1k shares |
| 2026-01-12 | FOUNTAIN THOMAS DEAN EVP Global Services & Strategy | Sold plan | $294.1k1.1k shares |
| 2026-01-05 | FOUNTAIN THOMAS DEAN EVP Global Services & Strategy | Sold plan | $292.8k1.1k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.03% of their portfolio | 6.2m $1.8bn | Reduced -46.6k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 4.09% of their portfolio | 4.6m $1.3bn | Reduced -894.1k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 3.7m $1.1bn | First filing |
| STATE STREET CORP 0.03% of their portfolio | 3.0m $861.9m | Reduced -123.4k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.04% of their portfolio | 3.0m $860.9m | First filing |
| Jericho Capital Asset Management L.P. 11.30% of their portfolio | 2.6m $764.7m | Added +372.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.03% of their portfolio | 1.7m $504.3m | Added +27.9k |
| FIRST TRUST ADVISORS LP 0.31% of their portfolio | 1.5m $427.3m | Reduced -1.3m |
| Invesco Ltd. 0.04% of their portfolio | 1.4m $418.0m | Reduced -92.9k |
| VICTORY CAPITAL MANAGEMENT INC 0.19% of their portfolio | 1.0m $295.6m | Added +548.6k |
| LYRICAL ASSET MANAGEMENT LP 4.18% of their portfolio | 947.4k $274.1m | Reduced -39.4k |
| MORGAN STANLEY 0.01% of their portfolio | 855.9k $247.6m | Added +14.9k |
| ALLIANCEBERNSTEIN L.P. 0.07% of their portfolio | 828.3k $211.4m | Added +621.7k |
| WELLINGTON MANAGEMENT GROUP LLP 0.04% of their portfolio | 817.7k $236.6m | Reduced -21.3k |
| AMERICAN CENTURY COMPANIES INC 0.12% of their portfolio | 784.8k $227.1m | Added +100.6k |
| AMERIPRISE FINANCIAL INC 0.05% of their portfolio | 781.5k $226.1m | Added +586.9k |
| NORTHERN TRUST CORP 0.03% of their portfolio | 735.8k $212.9m | Reduced -212.0k |
| AQR CAPITAL MANAGEMENT LLC 0.09% of their portfolio | 682.4k $193.3m | Added +53.0k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.62% of their portfolio | 649.9k $188.0m | Added +99.7k |
| DIMENSIONAL FUND ADVISORS LP 0.04% of their portfolio | 603.1k $174.5m | Added +4.3k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.04% of their portfolio | 582.3k $168.5m | Reduced -54.0k |
| HSBC HOLDINGS PLC 0.10% of their portfolio | 579.7k $167.7m | Reduced -584.0k |
| UBS Group AG 0.03% of their portfolio | 573.1k $165.8m | Reduced -450.8k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 571.7k $159.9m | Added +319.8k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio | 509.1k $147.3m | Added +5.8k |
| Legal & General Group Plc 0.03% of their portfolio | 490.5k $141.9m | Added +9.4k |
| Point72 Asset Management, L.P. 0.24% of their portfolio | 482.3k $139.5m | Added +123.0k |
| VOYA INVESTMENT MANAGEMENT LLC 0.13% of their portfolio | 423.3k $122.5m | Reduced -21.3k |
| BNP PARIBAS FINANCIAL MARKETS 0.08% of their portfolio | 406.6k $117.6m | Added +279.0k |
| DEUTSCHE BANK AG\ 0.04% of their portfolio | 405.6k $117.3m | Reduced -553.4k |
| Bank of New York Mellon Corp 0.02% of their portfolio | 385.9k $111.7m | Reduced -27.9k |
| Junto Capital Management LP 2.18% of their portfolio | 354.2k $102.5m | Added +88.1k |
| Robeco Institutional Asset Management B.V. 0.14% of their portfolio | 331.7k $96.0m | Added +56.0k |
| Penserra Capital Management LLC 1.10% of their portfolio | 324.9k $94.0m | Reduced -72.3k |
| VANGUARD FIDUCIARY TRUST CO 0.02% of their portfolio | 318.1k $92.0m | First filing |
| Alyeska Investment Group, L.P. 0.25% of their portfolio | 310.5k $89.8m | Reduced -81.4k |
| CITADEL ADVISORS LLC 0.06% of their portfolio | 307.0k $88.8m | Reduced -129.6k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.36% of their portfolio | 298.5k $86.4m | Added +17.2k |
| Amundi 0.02% of their portfolio | 283.5k $82.0m | Reduced -224.2k |
| Freestone Grove Partners LP 0.59% of their portfolio | 283.5k $82.0m | New |
| SEI INVESTMENTS CO 0.07% of their portfolio | 256.4k $74.2m | Added +60.2k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 254.5k $73.6m | Reduced -69.7k |
| Pacer Advisors, Inc. 0.21% of their portfolio | 249.5k $72.2m | Added +184.8k |
| Quantinno Capital Management LP 0.12% of their portfolio | 242.9k $70.3m | Added +136.0k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 240.2k $69.5m | Reduced -35.2k |
| Caisse de depot et placement du Quebec 0.11% of their portfolio | 235.8k $68.2m | Reduced -17.4k |
| Swedbank AB 0.07% of their portfolio | 214.0k $61.9m | Added +6.8k |
| CITIGROUP INC 0.03% of their portfolio | 188.8k $54.6m | Added +109.5k |
| Allianz Asset Management GmbH 0.06% of their portfolio | 182.4k $52.8m | Reduced -182.0k |
| FMR LLC 0.00% of their portfolio | 179.7k $52.0m | Added +19.6k |
| Boston Trust Walden Corp 0.42% of their portfolio | 177.3k $51.3m | Reduced -4.8k |
| BANK OF MONTREAL /CAN/ 0.02% of their portfolio | 174.1k $50.4m | Reduced -128.9k |
| Swiss National Bank 0.03% of their portfolio | 170.5k $49.3m | Added +13.0k |
| PANAGORA ASSET MANAGEMENT INC 0.18% of their portfolio | 165.5k $47.9m | Added +14.9k |
| Gotham Asset Management, LLC 0.14% of their portfolio | 162.2k $46.9m | Added +13.7k |
| Nuveen, LLC 0.01% of their portfolio | 159.2k $46.1m | Reduced -5.8k |
| ACADIAN ASSET MANAGEMENT LLC 0.06% of their portfolio | 156.5k $45.3m | Reduced -328.1k |
| California Public Employees Retirement System 0.03% of their portfolio | 148.3k $42.9m | Reduced -13.2k |
| Squarepoint Ops LLC 0.09% of their portfolio | 147.8k $42.8m | Added +146.3k |
| Russell Investments Group, Ltd. 0.04% of their portfolio | 142.8k $40.6m | Reduced -11.5k |
| RHUMBLINE ADVISERS 0.04% of their portfolio | 141.8k $41.0m | Reduced -3.0k |
| Sumitomo Mitsui Trust Group, Inc. 0.03% of their portfolio | 136.0k $39.4m | Reduced -8.2k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.03% of their portfolio | 133.2k $38.6m | Added +9.3k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 131.1k $37.9m | Reduced -34.0k |
| Meridiem Capital Partners LP 2.48% of their portfolio | 130.1k $37.7m | New |
| BARCLAYS PLC 0.01% of their portfolio | 129.7k $37.5m | Reduced -24.6k |
| Man Group plc 0.08% of their portfolio | 128.4k $37.2m | Added +97.9k |
| Vanguard Global Advisers, LLC 0.02% of their portfolio | 124.0k $35.9m | First filing |
| PFA Pension, Forsikringsaktieselskab 0.11% of their portfolio | 121.5k $35.2m | Reduced -1 |
| Talos Eurisko Asset Management LP 5.93% of their portfolio | 120.0k $34.7m | Added +48.6k |
| SG Americas Securities, LLC 0.04% of their portfolio | 118.1k $34.2m | Added +82.6k |
| MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio | 109.2k $31.6m | Reduced -50.6k |
| Treasurer of the State of North Carolina 0.10% of their portfolio | 107.3k $31.0m | Added +8.1k |
| FEDERATED HERMES, INC. 0.05% of their portfolio | 107.2k $31.0m | Reduced -7.8k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.03% of their portfolio | 101.8k $29.4m | Reduced -834 |
| VANGUARD ASSET MANAGEMENT, Ltd 0.02% of their portfolio | 100.3k $29.0m | First filing |
| KLP KAPITALFORVALTNING AS 0.11% of their portfolio | 100.1k $29.0m | Reduced -19.7k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.03% of their portfolio | 96.9k $28.0m | Reduced -2.0k |
| STOREBRAND ASSET MANAGEMENT AS 0.08% of their portfolio | 92.6k $26.8m | Reduced -30.6k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.04% of their portfolio | 89.8k $25.3m | Reduced -4.3k |
| FJARDE AP-FONDEN /FOURTH SWEDISH NATIONAL PENSION FUND 0.14% of their portfolio | 87.4k $25.3m | Added +37.0k |
| CANADA LIFE ASSURANCE Co 0.05% of their portfolio | 86.8k $25.1m | Reduced -2.1k |
| Lansforsakringar Fondforvaltning AB (publ) 0.12% of their portfolio | 81.1k $23.5m | Added +991 |
| Fisher Asset Management, LLC 0.01% of their portfolio | 79.7k $23.1m | Reduced -288 |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 79.2k $22.9m | Reduced -4.1k |
| Eurizon Capital SGR S.p.A. 0.07% of their portfolio | 78.7k $22.8m | Reduced -12.4k |
| APG Asset Management N.V. 0.06% of their portfolio | 78.4k $19.7m | Reduced -6.0k |
| Addenda Capital Inc. 0.59% of their portfolio | 73.0k $21.1m | Reduced -3.0k |
| GLENMEDE TRUST CO NA 0.10% of their portfolio | 69.6k $20.1m | Reduced -9.0k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 67.1k $19.4m | Reduced -1.1k |
| DekaBank Deutsche Girozentrale 0.03% of their portfolio | 65.8k $19.4m | Unchanged |
| DANSKE BANK A/S 0.05% of their portfolio | 65.0k $18.8m | Added +5.0k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 63.6k $18.4m | Added +3.4k |
| Mitsubishi UFJ Trust & Banking Corp 0.04% of their portfolio | 59.3k $17.2m | Added +1.8k |
| SORA INVESTORS LLC 1.57% of their portfolio | 58.8k $17.0m | New |
| AVIVA PLC 0.03% of their portfolio | 57.6k $16.7m | Reduced -2.5k |
| Swiss Life Asset Management Ltd 0.09% of their portfolio | 57.0k $19.0m | Added +35.6k |
| SG Capital Management LLC 1.36% of their portfolio | 56.9k $16.5m | Reduced -28.0k |
| NISSAY ASSET MANAGEMENT CORP /JAPAN 0.08% of their portfolio | 54.1k $15.7m | Added +26.8k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 53.7k $15.5m | Added +18.9k |