RingCentral, Inc.
MX ˙ BMV ˙ US76680R2067
SecurityMX:RNG / RingCentral, Inc.
InstitutionCalamos Advisors LLC
Latest Disclosed Ownership6,791 shares
Latest Disclosed Value $ 252,557
Calamos Advisors LLC ownership in RNG / RingCentral, Inc.

On May 4, 2026 - Calamos Advisors LLC filed a 13F-HR form disclosing ownership of 6,791 shares of RingCentral, Inc. (MX:RNG) valued at $252,557 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 1, 2022 disclosing 0 shares of RingCentral, 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)
2026-05-04 2026-03-31 13F RINGCENTRAL CL A 76680R206 6,791 6,791 253 0.0009
2022-02-01 2021-12-31 13F RINGCENTRAL CL A 76680R206 0 -11,042 -100.00 0 -100.00
2021-10-26 2021-09-30 13F RINGCENTRAL CL A 76680R206 11,042 199 1.84 2,402 -23.77 0.0105
2021-07-22 2021-06-30 13F RINGCENTRAL CL A 76680R206 10,843 -6,967 -39.12 3,151 -40.61 0.0144
2021-04-12 2021-03-31 13F RINGCENTRAL CL A 76680R206 17,810 -14,105 -44.20 5,306 -56.13 0.0289
2021-01-27 2020-12-31 13F RINGCENTRAL CL A 76680R206 31,915 1,172 3.81 12,095 43.27 0.0702
2020-10-26 2020-09-30 13F RINGCENTRAL CL A 76680R206 30,743 -10,073 -24.68 8,442 -27.44 0.0543
2020-07-27 2020-06-30 13F RINGCENTRAL CL A 76680R206 40,816 5,310 14.96 11,634 54.63 0.0822
2020-04-28 2020-03-31 13F RINGCENTRAL CL A 76680R206 35,506 -13,290 -27.24 7,524 -8.58 0.0590
2020-01-15 2019-12-31 13F RINGCENTRAL COMMON STOCK 76680R206 48,796 218 0.45 8,230 34.81 0.0407
2019-10-21 2019-09-30 13F RINGCENTRAL COMMON STOCK 76680R206 48,578 -1,838 -3.65 6,105 5.37 0.0333
2019-08-07 2019-06-30 13F RINGCENTRAL COMMON STOCK 76680R206 50,416 50,416 5,794 0.0322
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.