FIVE9 INC FIVN
COM · Common Stock · CUSIP 338307101 · ISIN US3383071012
* 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 ($252.6k this quarter). Holder counts are more reliable. Shares outstanding: 76.5m as of 2026-02-13, 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 ≈ $20.08. Options: 21 managers hold calls ($144.0m notional), 18 hold puts ($104.6m).
Trends to Q4 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 336 |
| Q4 2022 | 327 |
| Q1 2023 | 342 |
| Q2 2023 | 336 |
| Q3 2023 | 328 |
| Q4 2023 | 350 |
| Q1 2024 | 310 |
| Q2 2024 | 297 |
| Q3 2024 | 272 |
| Q4 2024 | 297 |
| Q1 2025 | 309 |
| Q2 2025 | 297 |
| Q3 2025 | 310 |
| Q4 2025 | 289 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2024 | 177 | 172 |
| Q2 2024 | 162 | 162 |
| Q3 2024 | 142 | 167 |
| Q4 2024 | 161 | 142 |
| Q1 2025 | 188 | 126 |
| Q2 2025 | 150 | 172 |
| Q3 2025 | 172 | 122 |
| Q4 2025 | 154 | 157 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2025 | $114.0m | $52.0m | 0.46 |
| Q2 2025 | $158.8m | $117.4m | 0.74 |
| Q3 2025 | $163.4m | $83.9m | 0.51 |
| Q4 2025 | $144.0m | $104.6m | 0.73 |
Biggest buyers
| Voss Capital, LP | Added | +1.3m |
| Van Berkom & Associates Inc. | Added | +787.6k |
| VANGUARD GROUP INC | Added | +759.2k |
| TUDOR INVESTMENT CORP ET AL | New | +492.2k |
| GOLDMAN SACHS GROUP INC | Added | +374.4k |
| FIRST TRUST ADVISORS LP | Added | +357.3k |
| JANE STREET GROUP, LLC | Added | +333.6k |
| GAGNON SECURITIES LLC | Added | +326.3k |
| AQR CAPITAL MANAGEMENT LLC | Added | +322.1k |
| BlackRock, Inc. | Added | +320.9k |
Biggest sellers
| FMR LLC | Reduced | -3.2m |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | -2.1m |
| FULLER & THALER ASSET MANAGEMENT, INC. | Sold out | -1.8m |
| SYLEBRA CAPITAL LLC | Sold out | -905.2k |
| Atreides Management, LP | Sold out | -735.2k |
| TREMBLANT CAPITAL GROUP | Sold out | -646.9k |
| SEGALL BRYANT & HAMILL, LLC | Reduced | -413.9k |
| OBERWEIS ASSET MANAGEMENT INC/ | Sold out | -396.6k |
| Squarepoint Ops LLC | Reduced | -375.4k |
| Nuveen, LLC | Reduced | -366.6k |
Biggest calls
| UBS Group AG | Added | $57.1m2.8m shares |
| ARMISTICE CAPITAL, LLC | Added | $36.1m1.8m shares |
| GROUP ONE TRADING LLC | Reduced | $9.8m486.6k shares |
| JANE STREET GROUP, LLC | Added | $9.6m477.1k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $7.8m390.7k shares |
| IMC-Chicago, LLC | Added | $5.7m281.8k shares |
| Voss Capital, LP | New | $3.0m150.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $2.3m115.2k shares |
| Caption Management, LLC | Added | $2.0m101.0k shares |
| CITADEL ADVISORS LLC | Reduced | $1.9m97.1k shares |
Biggest puts
| JANE STREET GROUP, LLC | Added | $48.3m2.4m shares |
| CITADEL ADVISORS LLC | Added | $16.0m796.4k shares |
| IMC-Chicago, LLC | Added | $7.2m361.5k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $5.2m259.7k shares |
| JPMORGAN CHASE & CO | New | $5.0m250.0k shares |
| TUDOR INVESTMENT CORP ET AL | Added | $4.2m210.1k shares |
| Parallax Volatility Advisers, L.P. | New | $3.6m180.0k shares |
| GROUP ONE TRADING LLC | Added | $2.8m142.0k shares |
| D. E. Shaw & Co., Inc. | Added | $2.6m128.8k shares |
| Caption Management, LLC | New | $2.4m120.8k 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 |
|---|---|
| BlackRock, Inc. 13G · institution +7.7 pts · filed 2026-08-06 | 15.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution +1.3 pts · filed 2026-08-06 | 10.3% |
| AMERIPRISE FINANCIAL INC 13G · institution new · filed 2026-08-14 | 5.4% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.1% |
Fell to 5% or below in the last year: Voss Capital, LP (4.7%, 2026-10-16), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC), PICTET ASSET MANAGEMENT SA (3.8%, 2026-02-27), FMR LLC (0.9%, 2026-02-05)
Insider purchases and sales in Q4 2025
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 |
|---|---|---|---|---|---|
| Q1 2024 | 0 | — | 6 | $5.2m | $3.9m |
| Q2 2024 | 0 | — | 6 | $2.7m | $1.2m |
| Q3 2024 | 0 | — | 6 | $1.5m | $1.2m |
| Q4 2024 | 0 | — | 5 | $1.2m | $897.7k |
| Q1 2025 | 0 | — | 5 | $985.5k | $758.7k |
| Q2 2025 | 0 | — | 5 | $931.3k | $772.6k |
| Q3 2025 | 1 | $24.1k | 7 | $1.6m | $788.8k |
| Q4 2025 | 1 | $1.9k | 7 | $1.4m | $482.5k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-12-05 | Dignan Andy President | Sold plan | $14.4k700 shares |
| 2025-12-04 | Burkland Michael Chief Executive Officer | Sold | $366.1k18.0k shares |
| 2025-12-04 | Lee Bryan M Chief Financial Officer | Sold | $269.0k13.2k shares |
| 2025-12-04 | Kozanian Panos EVP, Product Engineering | Sold plan | $221.7k10.9k shares |
| 2025-12-04 | Dignan Andy President | Sold plan | $152.3k7.5k shares |
| 2025-12-04 | Meriweather Tiffany N. Chief Admin. & Legal Officer | Sold | $139.4k6.9k shares |
| 2025-12-04 | Tuckness Matthew E. Chief Revenue Officer | Sold | $106.9k5.3k shares |
| 2025-12-04 | Mansharamani Leena SVP, Chief Accounting Officer | Sold plan | $60.2k3.0k shares |
| 2025-11-19 | Ramakrishna Sudhakar Director | Bought | $1.9k106 shares |
| 2025-11-03 | Dignan Andy President | Sold plan | $17.0k700 shares |
| 2025-10-01 | Dignan Andy President | Sold plan | $16.8k700 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, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.00% of their portfolio | 10.0m $201.2m | Added +759.2k |
| BlackRock, Inc. 0.00% of their portfolio | 7.4m $147.7m | Added +320.9k |
| Pictet Asset Management Holding SA 0.12% of their portfolio | 6.0m $120.4m | Reduced -276 |
| Voss Capital, LP 6.29% of their portfolio | 5.9m $118.2m | Added +1.3m |
| Van Berkom & Associates Inc. 2.08% of their portfolio | 3.6m $72.1m | Added +787.6k |
| FIL Ltd 0.04% of their portfolio | 2.6m $52.5m | Reduced -4.7k |
| STATE STREET CORP 0.00% of their portfolio | 2.0m $40.1m | Added +35.0k |
| ARMISTICE CAPITAL, LLC 0.98% of their portfolio | 2.0m $40.1m | Unchanged |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 2.0m $40.0m | Added +37.3k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 1.7m $34.8m | Added +219.4k |
| FIRST TRUST ADVISORS LP 0.02% of their portfolio | 1.6m $31.5m | Added +357.3k |
| Anson Funds Management LP 4.15% of their portfolio | 1.5m $30.9m | Added +5.1k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 1.2m $24.6m | Added +374.4k |
| JANE STREET GROUP, LLC 0.02% of their portfolio | 1.0m $20.9m | Added +333.6k |
| FEDERATED HERMES, INC. 0.03% of their portfolio | 954.7k $19.1m | Added +110.9k |
| UBS Group AG 0.00% of their portfolio | 926.4k $18.6m | Reduced -142.4k |
| LOOMIS SAYLES & CO L P 0.02% of their portfolio | 914.9k $18.3m | Added +17.5k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 906.2k $18.2m | Reduced -142.4k |
| MORGAN STANLEY 0.00% of their portfolio | 900.3k $18.1m | Reduced -118.1k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 889.1k $17.8m | Reduced -19.9k |
| Artisan Partners Limited Partnership 0.02% of their portfolio | 786.0k $15.8m | Reduced -318.6k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 712.6k $14.3m | Reduced -26.6k |
| Assenagon Asset Management S.A. 0.02% of their portfolio | 712.0k $14.3m | Reduced -12.7k |
| COOPER CREEK PARTNERS MANAGEMENT LLC 0.67% of their portfolio | 709.3k $14.2m | Unchanged |
| Point72 Asset Management, L.P. 0.02% of their portfolio | 702.4k $14.1m | Added +99.3k |
| FMR LLC 0.00% of their portfolio | 680.9k $13.7m | Reduced -3.2m |
| BARCLAYS PLC 0.01% of their portfolio | 666.9k $13.4m | Reduced -117.8k |
| Qube Research & Technologies Ltd 0.02% of their portfolio | 658.2k $13.2m | Added +235.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 650.9k $13.1m | Reduced -56.9k |
| GAGNON SECURITIES LLC 2.55% of their portfolio | 625.7k $12.5m | Added +326.3k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.02% of their portfolio | 615.6k $12.3m | Added +199.4k |
| Legion Partners Asset Management, LLC 6.91% of their portfolio | 591.7k $11.9m | Unchanged |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 538.9k $10.8m | Added +272.0k |
| Clark Capital Management Group, Inc. 0.06% of their portfolio | 512.7k $10.3m | Added +48.2k |
| TUDOR INVESTMENT CORP ET AL 0.05% of their portfolio | 492.2k $9.9m | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 463.8k $9.3m | Added +48.7k |
| Bridgewater Associates, LP 0.03% of their portfolio | 457.8k $9.2m | Added +176.6k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 450.9k $9.0m | Reduced -227.0k |
| Nuveen, LLC 0.00% of their portfolio | 443.7k $8.9m | Reduced -366.6k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 433.7k $8.7m | Added +322.1k |
| S SQUARED TECHNOLOGY, LLC 3.34% of their portfolio | 430.2k $8.6m | Added +80.2k |
| GLENMEDE TRUST CO NA 0.04% of their portfolio | 425.7k $8.5m | First filing |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 400.6k $8.0m | Reduced -196.7k |
| First Eagle Investment Management, LLC 0.01% of their portfolio | 363.0k $7.3m | Added +67.5k |
| HERALD INVESTMENT MANAGEMENT Ltd 0.95% of their portfolio | 362.0k $7.3m | Added +80.0k |
| Gagnon Advisors, LLC 4.28% of their portfolio | 336.3k $6.7m | Added +168.9k |
| Balyasny Asset Management L.P. 0.01% of their portfolio | 298.5k $6.0m | Reduced -354.3k |
| ALGERT GLOBAL LLC 0.09% of their portfolio | 278.7k $5.6m | New |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 268.3k $5.4m | Added +147.7k |
| Invenomic Capital Management LP 0.26% of their portfolio | 266.3k $5.3m | New |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.00% of their portfolio | 254.2k $5.1m | Added +195.9k |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 248.1k $5.0m | Added +180.3k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 245.4k $4.9m | Added +79.9k |
| Pacer Advisors, Inc. 0.01% of their portfolio | 236.1k $4.7m | New |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 228.9k $4.6m | Reduced -54.9k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.01% of their portfolio | 223.2k $4.5m | Reduced -17.8k |
| Dana Investment Advisors, Inc. 0.13% of their portfolio | 222.5k $4.5m | Added +95.0k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.14% of their portfolio | 200.9k $4.0m | New |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 181.0k $3.6m | Reduced -2.1m |
| P.A.W. CAPITAL CORP 8.20% of their portfolio | 180.0k $3.6m | Added +20.0k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 179.9k $3.6m | Reduced -1.7k |
| Verition Fund Management LLC 0.02% of their portfolio | 179.7k $3.6m | Added +78.3k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 178.9k $3.6m | Reduced -92.7k |
| Summit Creek Advisors LLC 0.56% of their portfolio | 176.5k $3.5m | Reduced -16.2k |
| NORDEA INVESTMENT MANAGEMENT AB 0.00% of their portfolio | 168.2k $3.3m | Reduced -21.2k |
| Invesco Ltd. 0.00% of their portfolio | 167.9k $3.4m | Added +52.7k |
| ACADIAN ASSET MANAGEMENT LLC 0.01% of their portfolio | 164.1k $3.3m | Added +147.1k |
| PICTON MAHONEY ASSET MANAGEMENT 0.04% of their portfolio | 162.8k $3.3m | Added +142.2k |
| ODDO BHF ASSET MANAGEMENT SAS 0.12% of their portfolio | 160.0k $3.2m | Unchanged |
| Optimus Prime Fund Management Co., Ltd. 0.25% of their portfolio | 154.5k $3.1m | Unchanged |
| SG Americas Securities, LLC 0.00% of their portfolio | 152.4k $3.1m | Added +87.4k |
| ABS Direct Equity Fund LLC 3.58% of their portfolio | 150.0k $3.0m | Unchanged |
| CAPITAL FUND MANAGEMENT S.A. 0.03% of their portfolio | 147.2k $3.0m | Reduced -88.4k |
| Engineers Gate Manager LP 0.03% of their portfolio | 139.8k $2.8m | Added +57.6k |
| Quinn Opportunity Partners LLC 0.12% of their portfolio | 139.7k $2.8m | Added +93.7k |
| Swiss National Bank 0.00% of their portfolio | 137.2k $2.8m | Reduced -3.3k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 136.1k $2.7m | Reduced -27.4k |
| Atom Investors LP 0.21% of their portfolio | 134.7k $2.7m | Reduced -15.9k |
| Campbell & CO Investment Adviser LLC 0.12% of their portfolio | 128.0k $2.6m | Added +5.4k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 127.0k $2.5m | Added +7.5k |
| Villanova Investment Management Co LLC 1.77% of their portfolio | 125.3k $2.5m | Added +47.8k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 123.8k $2.5m | Added +115.2k |
| Holocene Advisors, LP 0.00% of their portfolio | 112.1k $2.2m | Added +23.4k |
| GROUP ONE TRADING LLC 0.07% of their portfolio | 110.5k $2.2m | Added +63.8k |
| Squarepoint Ops LLC 0.00% of their portfolio | 110.4k $2.2m | Reduced -375.4k |
| LPL Financial LLC 0.00% of their portfolio | 108.5k $2.2m | Added +25.8k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 106.9k $2.1m | Added +36.5k |
| Y-Intercept (Hong Kong) Ltd 0.05% of their portfolio | 103.5k $2.1m | Added +17.5k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 99.9k $2.0m | Reduced -12.9k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 99.0k $2.0m | Reduced -13.7k |
| Creative Planning 0.00% of their portfolio | 94.6k $1.9m | Added +72.8k |
| Prospect Capital Advisors, LLC 0.92% of their portfolio | 89.3k $1.8m | Reduced -9.7k |
| TWINBEECH CAPITAL LP 0.12% of their portfolio | 85.8k $1.7m | Added +66.8k |
| Radcliffe Capital Management, L.P. 0.09% of their portfolio | 85.0k $1.7m | Added +7.5k |
| SEGALL BRYANT & HAMILL, LLC 0.02% of their portfolio | 84.1k $1.7m | Reduced -413.9k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 81.4k $1.6m | Added +7.2k |
| Walleye Capital LLC 0.01% of their portfolio | 78.6k $1.6m | New |
| Legal & General Group Plc 0.00% of their portfolio | 78.3k $1.6m | Reduced -264 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 78.0k $1.6m | Reduced -17.8k |
| Generali Investments Towarzystwo Funduszy Inwestycyjnych 0.72% of their portfolio | 74.0k $1.5m | Unchanged |