13F Pro

SEC Form 4 reporting owner

Makagon Kira

Makagon Kira has filed 31 Form 4 transactions reported between November 20, 2025 and September 14, 2026, as President and COO of RingCentral, Inc. and Director of CALIX, INC.

Name as filed: Makagon Kira

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$8.4M
14 lines
Companies
2
with Form 4 filings
Latest transaction
Sep 14, 2026
transaction date

Roles and reported holdings

  • RNGRingCentral, Inc.
    Nov 20, 2025 – Sep 14, 2026

    President and COO

    Held directly245,385 sh as of Sep 14, 2026 · Form 4

    24 months: $8.4M sold

  • CALXCALIX, INC
    May 14, 2026

    Director

    No common-stock holding reported on a purchase, sale, gift or withholding line.

Transaction history

All 31 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Sep 14, 2026RNGPresident and COOOpen-market saleCode S · direct36,185$2.5M@ $70.11Form 4
Sep 1, 2026RNGPresident and COOShares withheld for tax or exercise priceCode F · direct13,260$938K@ $70.77Form 4
Aug 20, 2026RNGPresident and COOShares withheld for tax or exercise priceCode F · direct9,222$605K@ $65.58Form 4
Aug 17, 2026RNGPresident and COOShares withheld for tax or exercise priceCode F · direct1,749$112K@ $64.07Form 4
Aug 17, 2026RNGPresident and COOGrant or awardCode A · direct3,437—Form 4
Jun 1, 2026RNGPresident and COOShares withheld for tax or exercise priceCode F · direct13,260$651K@ $49.10Form 4
May 29, 2026RNGPresident and COOGrant or awardCode A · direct102,900—Form 4
May 27, 2026RNGPresident and COOOpen-market saleCode S · direct5,610$241K@ $42.99Form 4
May 27, 2026RNGPresident and COOOpen-market saleCode S · direct11,378$481K@ $42.32Form 4
May 20, 2026RNGPresident and COOShares withheld for tax or exercise priceCode F · direct9,223$401K@ $43.51Form 4
May 15, 2026RNGPresident and COOShares withheld for tax or exercise priceCode F · direct2,300$94K@ $41.05Form 4
May 15, 2026RNGPresident and COOGrant or awardCode A · direct4,520—Form 4
May 14, 2026CALXDirectorGrant or awardCode A · direct4,967—Form 4
Apr 27, 2026RNGPresident and COOOpen-market saleCode S · direct1,400$57K@ $40.67Form 4
Apr 27, 2026RNGPresident and COOOpen-market saleCode S · direct4,470$179K@ $40.14Form 4
Mar 27, 2026RNGPresident and COOOpen-market saleCode S · direct5,782$211K@ $36.54Form 4
Mar 27, 2026RNGPresident and COOOpen-market saleCode S · direct39,058$1.4M@ $35.68Form 4
Mar 26, 2026RNGPresident and COOOpen-market saleCode S · direct2,070$75K@ $36.28Form 4
Mar 26, 2026RNGPresident and COOOpen-market saleCode S · direct3,800$135K@ $35.65Form 4
Mar 1, 2026RNGPresident and COOShares withheld for tax or exercise priceCode F · direct46,250$1.7M@ $36.45Form 4
Feb 27, 2026RNGPresident and COOOpen-market saleCode S · direct183$7K@ $36.00Form 4
Feb 27, 2026RNGPresident and COOOpen-market saleCode S · direct22,013$774K@ $35.15Form 4
Feb 20, 2026RNGPresident and COOShares withheld for tax or exercise priceCode F · direct7,783$307K@ $39.50Form 4
Feb 20, 2026RNGPresident and COOOpen-market saleCode S · direct46,960$1.7M@ $35.49Form 4
Feb 17, 2026RNGPresident and COOShares withheld for tax or exercise priceCode F · direct1,702$49K@ $29.00Form 4
Feb 17, 2026RNGPresident and COOGrant or awardCode A · direct4,131—Form 4
Feb 10, 2026RNGPresident and COOGrant or awardCode A · direct77,893—Form 4
Dec 26, 2025RNGPresident and COOOpen-market saleCode S · direct6,495$190K@ $29.22Form 4
Dec 1, 2025RNGPresident and COOShares withheld for tax or exercise priceCode F · direct6,701$193K@ $28.83Form 4
Nov 26, 2025RNGPresident and COOOpen-market saleCode S · direct14,798$416K@ $28.11Form 4
Nov 20, 2025RNGPresident and COOShares withheld for tax or exercise priceCode F · direct12,845$336K@ $26.12Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.