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5%+ stakes · Schedule 13D and 13G

Five9, Inc.: 5%+ holders

Who has reported owning 5% or more of Five9, Inc., from Schedule 13D and 13G filings: each holder's stake as filed, the timeline, and the purpose each 13D states, quoted.

At 5% or more5
Filings17
Latest filing2026-08-14

Five9, Inc. has 17 Schedule 13D or 13G filings on record since 2025-07-17. 5 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

Holders

HolderPercentSharesLatestEvent date
BlackRock, Inc.15.5%11,877,228SCHEDULE 13G/A, 2026-08-062026-07-31
Vanguard Portfolio Management10.31%7,900,169SCHEDULE 13G/A, 2026-08-062026-07-31
Voss Capital, LP6.4%4,885,826SCHEDULE 13G/A, 2026-07-142026-06-30
Ameriprise Financial, Inc.5.4%4,140,003SCHEDULE 13G, 2026-08-142026-06-30
Vanguard Capital Management5.11%3,915,873SCHEDULE 13G, 2026-04-292026-03-31
Pictet Asset Management Sa3.8%2,872,185SCHEDULE 13D/A, 2026-02-272026-02-26
Fmr LLC0.9%692,076SCHEDULE 13G/A, 2026-02-052025-12-31
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-262026-03-13

Purpose of Transaction (Item 4)

Pictet Asset Management Sa

The Reporting Person acquired shares of Five9 Inc. as part of its investment strategy, considering the clarity and robustness of the issuer's long-term strategy; the functioning and calibre of governance structures and effective leadership; the financial strength and performance of issuers and the fair valuation of underlying securities; and financially-material sustainability risks & opportunities. The Reporting Person is therefore actively engaging with the Issuer to discuss and promote initiatives that align with these business practices. This engagement is part of the Reporting Person's broader strategy to support companies in enhancing their approach, thereby potentially improving long-term shareholder value. As such, the Reporting Person may seek to influence the Issuer's policies and practices through discussions with the Boards and management of the companies in which we invest. The Reporting Person does not currently have any plans or proposals that would result in a change in control of the Issuer, nor does it intend to acquire additional shares for the purpose of gaining control. However, the Reporting Person reserves the right to change its intentions and take any actions that it deems appropriate in light of its ongoing engagement and evaluation of the Issuer's policies and practices.Item 4 of the SCHEDULE 13D/A filed 2026-02-27

Timeline

FiledHolderPercentFiling
2025-07-17BlackRock, Inc.7.8%SCHEDULE 13G/A
2025-08-07Pictet Asset Management SaSCHEDULE 13D/A
2025-08-11Pictet Asset Management Sa8.5%SCHEDULE 13D/A
2025-08-13Voss Capital, LP5.8%SCHEDULE 13G
2025-11-05Fmr LLC5.1%SCHEDULE 13G/A
2026-02-05Fmr LLC0.9%SCHEDULE 13G/A
2026-02-13Voss Capital, LP8%SCHEDULE 13G/A
2026-02-17Pictet Asset Management Sa7.4%SCHEDULE 13D/A
2026-02-17Pictet Asset Management Sa7.4%SCHEDULE 13D/A
2026-02-27Pictet Asset Management Sa3.8%SCHEDULE 13D/A
2026-03-26The Vanguard Group0%SCHEDULE 13G/A
2026-04-29Vanguard Capital Management5.11%SCHEDULE 13G
2026-04-29Vanguard Portfolio Management8.97%SCHEDULE 13G
2026-07-14Voss Capital, LP6.4%SCHEDULE 13G/A
2026-08-06BlackRock, Inc.15.5%SCHEDULE 13G/A
2026-08-06Vanguard Portfolio Management10.31%SCHEDULE 13G/A
2026-08-14Ameriprise Financial, Inc.5.4%SCHEDULE 13G

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

Cite this page

Permanent URL: https://mentionfox.com/stakes/five9
Last updated 2026-09-27
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3 · SEC filing 4
Five9, Inc. 5%+ holders: 5 at 5% or more, largest BlackRock, Inc. 15.5%. MentionFox, 2026-09-27. https://mentionfox.com/stakes/five9