Five9, Inc.
MX ˙ BMV ˙ US3383071012
SecurityMX:FIVN / Five9, Inc.
InstitutionQuantbot Technologies LP
Latest Disclosed Ownership22,819 shares
Latest Disclosed Value $ 346,164
Quantbot Technologies LP reports 66.09% increase in ownership of FIVN / Five9, Inc.

On May 13, 2026 - Quantbot Technologies LP filed a 13F-HR form disclosing ownership of 22,819 shares of Five9, Inc. (MX:FIVN) valued at $346,164 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 13,739 shares of Five9, Inc.. This represents a change in shares of 66.09% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F FIVE9 COM 338307101 22,819 9,080 66.09 346 25.82 0.0142
2026-02-10 2025-12-31 13F FIVE9 COM 338307101 13,739 13,739 275 0.0092
2025-02-11 2024-12-31 13F FIVE9 COM 338307101 0 -182,502 -100.00 0 -100.00
2024-11-13 2024-09-30 13F FIVE9 COM 338307101 182,502 182,502 5,243 0.2068
2023-08-08 2023-06-30 13F FIVE9 COM 338307101 0 -10,877 -100.00 0 -100.00
2023-05-12 2023-03-31 13F FIVE9 COM 338307101 10,877 10,877 786 0.0556
2023-02-13 2022-12-31 13F FIVE9 COM 338307101 0 -1,673 -100.00 0 -100.00
2022-11-07 2022-09-30 13F FIVE9 COM 338307101 1,673 1,673 125 0.0094
2022-05-16 2022-03-31 13F FIVE9 COM 338307101 0 -4,053 -100.00 0 -100.00
2022-02-11 2021-12-31 13F FIVE9 COM 338307101 4,053 -6,764 -62.53 556 -67.81 0.0451
2021-11-09 2021-09-30 13F FIVE9 COM 338307101 10,817 8,540 375.05 1,727 314.15 0.1263
2021-08-12 2021-06-30 13F FIVE9 COM 338307101 2,277 -4,772 -67.70 417 -62.13 0.0328
2021-05-14 2021-03-31 13F FIVE9 COM 338307101 7,049 7,049 1,101 0.1048
2020-05-13 2020-03-31 13F FIVE9 COM 338307101 0 -11,344 -100.00 0 -100.00
2020-02-10 2019-12-31 13F FIVE9 COM 338307101 11,344 -2,106 -15.66 743 2.91 0.0737
2019-11-12 2019-09-30 13F FIVE9 COM 338307101 13,450 -4,603 -25.50 722 -21.95 0.0712
2019-08-13 2019-06-30 13F FIVE9 COM 338307101 18,053 6,388 54.76 925 50.16 0.0925
2019-05-13 2019-03-31 13F FIVE9 COM 338307101 11,665 11,665 616 0.0586
2019-02-13 2018-12-31 13F FIVE9 COM 338307101 0 -37,620 -100.00 0 -100.00
2018-11-13 2018-09-30 13F FIVE9 COM 338307101 37,620 36,202 2,553.03 1,643 3,253.06 0.1150
2018-08-13 2018-06-30 13F FIVE9 COM 338307101 1,418 -15,190 -91.46 49 -90.08 0.0033
2018-05-11 2018-03-31 13F FIVE9 COM 338307101 16,608 8,009 93.14 494 131.92 0.0425
2018-02-12 2017-12-31 13F FIVE9 COM 338307101 8,599 8,599 213 0.0197
2017-11-07 2017-09-30 13F FIVE9 COM 338307101 0 -19,884 -100.00 0 -100.00
2017-08-11 2017-06-30 13F FIVE9 COM 338307101 19,884 17,445 715.25 427 967.50 0.0402
2017-05-10 2017-03-31 13F FIVE9 COM 338307101 2,439 2,439 40 0.0042
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.