Five9, Inc.
MX ˙ BMV ˙ US3383071012
SecurityMX:FIVN / Five9, Inc.
InstitutionS Squared Technology, LLC
Latest Disclosed Ownership535,195 shares
Latest Disclosed Value $ 8,118,908
S Squared Technology, LLC reports 24.41% increase in ownership of FIVN / Five9, Inc.

On May 15, 2026 - S Squared Technology, LLC filed a 13F-HR/A form disclosing ownership of 535,195 shares of Five9, Inc. (MX:FIVN) valued at $8,118,908 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 430,195 shares of Five9, Inc.. This represents a change in shares of 24.41% 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.

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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/A-1 FIVE9 COM 338307101 535,195 105,000 24.41 8,119 -5.88 3.0729
2026-05-14 2026-03-31 13F FIVE9 COM 338307101 535,195 105,000 8,119 3.0729
2026-02-13 2025-12-31 13F FIVE9 COM 338307101 430,195 80,195 22.91 8,625 1.83 3.3400
2025-11-14 2025-09-30 13F FIVE9 COM 338307101 350,000 165,000 89.19 8,470 72.93 3.2200
2025-08-07 2025-06-30 13F FIVE9 COM 338307101 185,000 185,000 4,899 2.0642
2021-08-13 2021-06-30 13F FIVE9 COM 338307101 0 -12,942 -100.00 0 -100.00
2021-05-13 2021-03-31 13F FIVE9 COM 338307101 12,942 0 0.00 2,023 -10.37 0.9565
2021-02-12 2020-12-31 13F FIVE9 COM 338307101 12,942 -6,000 -31.68 2,257 -8.10 1.2944
2020-11-13 2020-09-30 13F FIVE9 COM 338307101 18,942 0 0.00 2,456 17.18 1.8258
2020-08-13 2020-06-30 13F FIVE9 COM 338307101 18,942 0 0.00 2,096 44.75 1.6466
2020-05-14 2020-03-31 13F FIVE9 COM 338307101 18,942 -15,000 -44.19 1,448 -34.95 1.4051
2020-02-14 2019-12-31 13F FIVE9 COM 338307101 33,942 0 0.00 2,226 22.04 1.8279
2019-11-14 2019-09-30 13F FIVE9 COM 338307101 33,942 0 0.00 1,824 4.77 1.6071
2019-08-12 2019-06-30 13F FIVE9 COM 338307101 33,942 0 0.00 1,741 -2.90 1.2990
2019-05-14 2019-03-31 13F FIVE9 COM 338307101 33,942 -10,000 -22.76 1,793 -6.66 1.3853
2019-02-13 2018-12-31 13F FIVE9 COM 338307101 43,942 0 0.00 1,921 0.05 1.6928
2018-11-13 2018-09-30 13F FIVE9 COM 338307101 43,942 -11,572 -20.85 1,920 0.05 1.5072
2018-08-14 2018-06-30 13F FIVE9 COM 338307101 55,514 20,000 56.32 1,919 81.38 1.5246
2018-05-14 2018-03-31 13F FIVE9 COM 338307101 35,514 -41,600 -53.95 1,058 -44.87 0.9058
2018-02-13 2017-12-31 13F FIVE9 COM 338307101 77,114 0 0.00 1,919 4.12 1.7492
2017-11-13 2017-09-30 13F FIVE9 COM 338307101 77,114 0 0.00 1,843 11.09 1.5571
2017-08-10 2017-06-30 13F FIVE9 COM 338307101 77,114 -25,000 -24.48 1,659 -1.31 1.4186
2017-05-11 2017-03-31 13F FIVE9 COM 338307101 102,114 -5,000 -4.67 1,681 10.59 1.5728
2017-02-08 2016-12-31 13F FIVE9 COM 338307101 107,114 -5,000 -4.46 1,520 -13.54 1.6509
2016-11-14 2016-09-30 13F FIVE9 COM 338307101 112,114 -30,000 -21.11 1,758 3.96 1.9549
2016-08-12 2016-06-30 13F FIVE9 COM 338307101 142,114 -96,468 -40.43 1,691 -20.27 1.7723
2016-05-16 2016-03-31 13F FIVE9 COM 338307101 238,582 0 0.00 2,121 2.17 2.3919
2016-02-11 2015-12-31 13F FIVE9 COM 338307101 238,582 134,293 128.77 2,076 437.82 2.2427
2015-11-16 2015-09-30 13F FIVE9 COM 338307101 104,289 104,289 386 0.4504
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.