주식회사 파이브나인
MX ˙ BMV ˙ US3383071012
SecurityMX:FIVN / Five9, Inc.
InstitutionMillennium Management Llc
ManagerIsrael Englander
Latest Disclosed Ownership499,687 shares
Latest Disclosed Value $ 7,580,252
Millennium Management Llc ownership in FIVN / Five9, Inc.

On May 15, 2026 - Millennium Management Llc filed a 13F-HR form disclosing ownership of 499,687 shares of Five9, Inc. (MX:FIVN) valued at $7,580,252 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 268,338 shares of Five9, Inc.. This represents a change in shares of 86.22% during the quarter.

Millennium Management Llc has a history of taking positions in derivatives of the underlying security (FIVN) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:FIVN / Five9, Inc. Historical Put/Call Ratio
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 499,687 231,349 86.22 7,580 40.89 0.0032
2026-02-17 2025-12-31 13F FIVE9 COM 338307101 268,338 147,713 122.46 5,380 84.31 0.0023
2025-11-14 2025-09-30 13F FIVE9 COM 338307101 120,625 -161,992 -57.32 2,919 -60.99 0.0012
2025-08-14 2025-06-30 13F FIVE9 COM 338307101 282,617 -500,287 -63.90 7,484 -64.79 0.0036
2025-05-15 2025-03-31 13F FIVE9 COM 338307101 782,904 765,254 4,335.72 21,256 2,864.44 0.0113
2025-02-14 2024-12-31 13F FIVE9 COM 338307101 17,650 -893,145 -98.06 717 -97.26 0.0004
2024-11-14 2024-09-30 13F FIVE9 COM 338307101 910,795 578,161 173.81 26,167 78.38 0.0124
2024-08-14 2024-06-30 13F FIVE9 COM 338307101 332,634 219,568 194.19 14,669 108.90 0.0068
2024-05-15 2024-03-31 13F FIVE9 COM 338307101 113,066 -851,995 -88.28 7,023 -90.75 0.0030
2024-02-14 2023-12-31 13F FIVE9 COM 338307101 965,061 911,775 1,711.10 75,941 2,116.58 0.0329
2023-11-14 2023-09-30 13F FIVE9 COM 338307101 53,286 -235,304 -81.54 3,426 -85.60 0.0017
2023-08-14 2023-06-30 13F FIVE9 COM 338307101 288,590 62,059 27.40 23,794 45.30 0.0117
2023-05-15 2023-03-31 13F FIVE9 COM 338307101 226,531 219,153 2,970.36 16,376 3,168.66 0.0094
2023-02-14 2022-12-31 13F FIVE9 COM 338307101 7,378 -36,888 -83.33 501 -84.91 0.0003
2022-11-14 2022-09-30 13F FIVE9 COM 338307101 44,266 -267,437 -85.80 3,319 -88.32 0.0020
2022-08-15 2022-06-30 13F FIVE9 COM 338307101 311,703 204,501 190.76 28,409 140.04 0.0176
2022-05-16 2022-03-31 13F FIVE9 COM 338307101 107,202 -27,709 -20.54 11,835 -36.12 0.0063
2022-02-14 2021-12-31 13F FIVE9 COM 338307101 134,911 -542,198 -80.08 18,526 -82.87 0.0094
2021-11-15 2021-09-30 13F FIVE9 COM 338307101 677,109 329,780 94.95 108,161 69.81 0.0649
2021-08-16 2021-06-30 13F FIVE9 COM 338307101 347,329 208,156 149.57 63,697 192.77 0.0391
2021-05-17 2021-03-31 13F FIVE9 COM 338307101 139,173 -34,488 -19.86 21,757 -28.16 0.0156
2021-02-16 2020-12-31 13F FIVE9 COM 338307101 173,661 -42,022 -19.48 30,286 8.28 0.0219
2020-11-16 2020-09-30 13F FIVE9 COM 338307101 215,683 -319,530 -59.70 27,970 -52.78 0.0344
2020-08-14 2020-06-30 13F FIVE9 COM 338307101 535,213 535,213 59,232 0.0812
2020-05-14 2020-03-31 13F FIVE9 COM 338307101 0 -158,686 -100.00 0 -100.00
2020-02-14 2019-12-31 13F FIVE9 COM 338307101 158,686 -109,755 -40.89 10,407 -27.86 0.0130
2019-11-14 2019-09-30 13F FIVE9 COM 338307101 268,441 -214,925 -44.46 14,426 -41.81 0.0228
2019-08-15 2019-06-30 13F/A-1 FIVE9 COM 338307101 483,366 247,467 104.90 24,792 98.92 0.0373
2019-05-14 2019-03-31 13F FIVE9 COM 338307101 235,899 57,811 32.46 12,463 60.07 0.0187
2019-02-15 2018-12-31 13F/A-1 FIVE9 COM 338307101 178,088 -346,593 -66.06 7,786 -66.03 0.0121
2019-02-14 2018-12-31 13F FIVE9 COM 338307101 178,088 7,786
2018-11-14 2018-09-30 13F FIVE9 COM 338307101 524,681 285,921 119.75 22,923 177.72 0.0281
2018-08-14 2018-06-30 13F FIVE9 COM 338307101 238,760 -245,633 -50.71 8,254 -42.80 0.0108
2018-05-15 2018-03-31 13F FIVE9 COM 338307101 484,393 -161,446 -25.00 14,430 -10.19 0.0193
2018-02-14 2017-12-31 13F FIVE9 COM 338307101 645,839 207,556 47.36 16,068 53.39 0.0222
2017-11-14 2017-09-30 13F FIVE9 COM 338307101 438,283 -569,220 -56.50 10,475 -51.69 0.0160
2017-08-14 2017-06-30 13F FIVE9 COM 338307101 1,007,503 509,222 102.20 21,681 164.34 0.0387
2017-05-15 2017-03-31 13F FIVE9 COM 338307101 498,281 235,078 89.31 8,202 119.60 0.0150
2017-02-14 2016-12-31 13F FIVE9 COM 338307101 263,203 58,658 28.68 3,735 16.46 0.0078
2016-11-14 2016-09-30 13F FIVE9 COM 338307101 204,545 77,030 60.41 3,207 111.40 0.0054
2016-08-15 2016-06-30 13F FIVE9 COM 338307101 127,515 27,269 27.20 1,517 70.26 0.0035
2016-05-16 2016-03-31 13F FIVE9 COM 338307101 100,246 -291,761 -74.43 891 -73.87 0.0022
2016-02-16 2015-12-31 13F FIVE9 COM 338307101 392,007 75,489 23.85 3,410 191.20 0.0072
2015-11-16 2015-09-30 13F FIVE9 COM 338307101 316,518 20,669 6.99 1,171 -24.31 0.0023
2015-08-14 2015-06-30 13F FIVE9 COM 338307101 295,849 282,966 2,196.43 1,547 2,048.61 0.0029
2015-05-15 2015-03-31 13F FIVE9 COM 338307101 12,883 12,883 0.00 72 0.0001
2014-11-14 2014-09-30 13F FIVE9 COM 338307101 0 -24,961 -100.00 0 -100.00
2014-08-14 2014-06-30 13F FIVE9 COM 338307101 24,961 24,961 180 0.0005
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-02-17 2025-12-31 13F FIVE9 COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F FIVE9 COM Call 100,000 -50.00 2,420 -54.31 n/a n/a n/a
2025-08-14 2025-06-30 13F FIVE9 COM Call 200,000 5,296 n/a n/a n/a
2025-05-15 2025-03-31 13F FIVE9 COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-14 2024-12-31 13F FIVE9 COM Call 40,000 1,626 n/a n/a n/a
2024-11-14 2024-09-30 13F FIVE9 COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F FIVE9 COM Call 7,500 -87.84 331 -91.39 n/a n/a n/a
2024-05-15 2024-03-31 13F FIVE9 COM Call 61,700 2,273.08 3,832 1,778.43 n/a n/a n/a
2024-02-14 2023-12-31 13F FIVE9 COM Call 2,600 -99.04 205 -98.83 n/a n/a n/a
2023-11-14 2023-09-30 13F FIVE9 COM Call 270,300 17,380 n/a n/a n/a
2022-02-14 2021-12-31 13F FIVE9 COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-15 2021-09-30 13F FIVE9 COM Call 63,400 10,128 n/a n/a n/a
2021-08-16 2021-06-30 13F FIVE9 COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-17 2021-03-31 13F FIVE9 COM Call 62,100 9,708 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2024-11-14 2024-09-30 13F FIVE9 COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F FIVE9 COM Put 8,100 -49.69 357 -64.26 n/a n/a n/a
2024-05-15 2024-03-31 13F FIVE9 COM Put 16,100 -67.99 1,000 -74.76 n/a n/a n/a
2024-02-14 2023-12-31 13F FIVE9 COM Put 50,300 3,958 n/a n/a n/a
2021-08-16 2021-06-30 13F FIVE9 COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-17 2021-03-31 13F FIVE9 COM Put 17,100 -98.32 2,673 -82.29 n/a n/a n/a
2019-08-14 2019-06-30 13F VANECK VECTORS ETF TR OIL SVCS ETF Put 1,018,700 15,097 n/a n/a n/a
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.