Five9, Inc.
MX ˙ BMV ˙ US3383071012
SecurityMX:FIVN / Five9, Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership209,889 shares
Latest Disclosed Value $ 3,184,016
Trexquant Investment LP ownership in FIVN / Five9, Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 209,889 shares of Five9, Inc. (MX:FIVN) valued at $3,184,016 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 14, 2025 disclosing 0 shares of Five9, Inc..

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.

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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)
2026-05-15 2026-03-31 13F FIVE9 COM 338307101 209,889 209,889 3,184 0.0229
2025-11-14 2025-09-30 13F FIVE9 COM 338307101 0 -117,503 -100.00 0 -100.00
2025-08-12 2025-06-30 13F FIVE9 COM 338307101 117,503 -91,744 -43.84 3,111 -45.24 0.0351
2025-05-14 2025-03-31 13F FIVE9 COM 338307101 209,247 52,878 33.82 5,681 -10.59 0.0661
2025-02-12 2024-12-31 13F FIVE9 COM 338307101 156,369 -49,518 -24.05 6,355 7.42 0.0741
2024-11-12 2024-09-30 13F FIVE9 COM 338307101 205,887 163,783 389.00 5,915 218.70 0.0749
2024-08-13 2024-06-30 13F FIVE9 COM 338307101 42,104 -111,389 -72.57 1,857 -80.53 0.0283
2024-05-14 2024-03-31 13F FIVE9 COM 338307101 153,493 136,165 785.81 9,533 599.41 0.1901
2024-02-09 2023-12-31 13F FIVE9 COM 338307101 17,328 17,328 1,364 0.0307
2023-11-13 2023-09-30 13F FIVE9 COM 338307101 0 -15,900 -100.00 0 -100.00
2023-08-11 2023-06-30 13F FIVE9 COM 338307101 15,900 -78,451 -83.15 1,311 -80.79 0.0344
2023-05-15 2023-03-31 13F FIVE9 COM 338307101 94,351 60,324 177.28 6,821 195.37 0.1873
2023-02-13 2022-12-31 13F FIVE9 COM 338307101 34,027 9,117 36.60 2,309 23.61 0.0655
2022-11-14 2022-09-30 13F FIVE9 COM 338307101 24,910 -1,430 -5.43 1,868 -22.20 0.0657
2022-08-11 2022-06-30 13F FIVE9 COM 338307101 26,340 6,124 30.29 2,401 7.57 0.1076
2022-05-13 2022-03-31 13F FIVE9 COM 338307101 20,216 2,373 13.30 2,232 -8.90 0.1048
2022-02-14 2021-12-31 13F FIVE9 COM 338307101 17,843 17,843 2,450 0.1514
2021-11-12 2021-09-30 13F FIVE9 COM 338307101 0 -9,213 -100.00 0 -100.00
2021-08-12 2021-06-30 13F FIVE9 COM 338307101 9,213 2,246 32.24 1,690 55.19 0.1426
2021-05-13 2021-03-31 13F FIVE9 COM 338307101 6,967 4,093 142.41 1,089 117.37 0.0999
2021-02-11 2020-12-31 13F FIVE9 COM 338307101 2,874 -8,336 -74.36 501 -65.54 0.0531
2020-11-06 2020-09-30 13F FIVE9 COM 338307101 11,210 -9,043 -44.65 1,454 -35.12 0.0936
2020-08-07 2020-06-30 13F FIVE9 COM 338307101 20,253 -14 -0.07 2,241 44.58 0.1556
2020-05-08 2020-03-31 13F FIVE9 COM 338307101 20,267 8,789 76.57 1,550 105.84 0.1125
2020-02-12 2019-12-31 13F FIVE9 COM 338307101 11,478 6,892 150.28 753 206.10 0.0445
2020-02-18 2019-09-30 13F/A-1 FIVE9 COM 338307101 4,586 -10,404 -69.41 246 -68.01 0.0212
2019-11-08 2019-09-30 13F FIVE9 COM 338307101 4,586 -10,404 246 21,246.3855
2019-08-09 2019-06-30 13F FIVE9 COM 338307101 14,990 10,221 214.32 769 205.16 0.0692
2019-05-13 2019-03-31 13F FIVE9 COM 338307101 4,769 4,769 252 0.0179
2019-02-13 2018-12-31 13F FIVE9 COM 338307101 0 -7,743 -100.00 0 -100.00
2018-11-09 2018-09-30 13F FIVE9 COM 338307101 7,743 -3,628 -31.91 338 -13.99 0.0254
2018-08-07 2018-06-30 13F FIVE9 COM 338307101 11,371 -3,870 -25.39 393 -13.44 0.0272
2018-05-03 2018-03-31 13F FIVE9 COM 338307101 15,241 15,241 454 0.0316
2017-08-01 2017-06-30 13F FIVE9 COM 338307101 0 -49,564 -100.00 0 -100.00
2017-05-08 2017-03-31 13F FIVE9 COM 338307101 49,564 23,877 92.95 816 124.18 0.1047
2017-02-10 2016-12-31 13F FIVE9 COM 338307101 25,687 25,687 364 0.0576
2016-11-10 2016-09-30 13F FIVE9 COM 338307101 0 -11,665 -100.00 0 -100.00
2016-08-10 2016-06-30 13F FIVE9 COM 338307101 11,665 -37,510 -76.28 139 -68.19 0.0183
2016-05-11 2016-03-31 13F FIVE9 COM 338307101 49,175 49,175 437 0.0512
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.