RingCentral 10% holder to sell 8,738 shares

RingCentral, Inc. (RNG) received a notice that 10% stockholder Vlad Vendrow intends to sell shares of the company’s common stock under Rule 144.

Rhea-AI Filing Summary

RingCentral, Inc. (RNG) received a notice that 10% stockholder Vlad Vendrow intends to sell shares of the company’s common stock under Rule 144. The planned sale covers 8,738 shares, with an indicated aggregate market value of $646,813.85 as of September 4, 2026.

The notice also identifies two underlying restricted stock positions from the issuer totaling 4,838 and 3,900 shares, dated August 20, 2026 and September 1, 2026 respectively. The filing lists prior sales over the past three months by Vlad Vendrow and a related trust.

Key Figures

Shares to be sold under Rule 144: 8,738 shares Aggregate market value of planned sale: $646,813.85 RingCentral shares outstanding: 73,736,624 shares +4 more

7 metrics

Shares to be sold under Rule 144 8,738 shares Planned sale of RingCentral common stock by 10% stockholder Vlad Vendrow

Aggregate market value of planned sale $646,813.85 Indicated value of 8,738 shares of RingCentral common stock as of September 4, 2026

RingCentral shares outstanding 73,736,624 shares Referenced in connection with the Form 144 notice dated September 4, 2026

Restricted stock position (August 20, 2026) 4,838 shares Restricted Stock from issuer referenced as securities to be sold

Restricted stock position (September 1, 2026) 3,900 shares Restricted Stock from issuer referenced as securities to be sold

Recent sale by Vlad Vendrow 18,791 shares for $1,240,241.70 Common stock sold on August 21, 2026

Recent sale by Vendrow children’s trust 10,000 shares for $600,308.00 Common stock sold on August 4, 2026

Key Terms

Rule 144, Restricted Stock, 10% Stockholder, Form 144

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock financial

"Common | 08/20/2026 | Restricted Stock | Issuer"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

10% Stockholder financial

"10% Stockholder 144: Securities Information"

Form 144 regulatory

"144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

FAQ

What does the Form 144 filing for RNG by Vlad Vendrow disclose?

It discloses that 10% stockholder Vlad Vendrow intends to sell 8,738 shares of RingCentral common stock under Rule 144, with an indicated aggregate market value of $646,813.85 as of September 4, 2026.

How many RingCentral (RNG) shares are covered by the planned Rule 144 sale?

The planned Rule 144 sale covers 8,738 shares of RingCentral common stock, with an indicated aggregate market value of $646,813.85 and reference to 73,736,624 shares outstanding as of September 4, 2026.

What prior RingCentral (RNG) share sales by Vlad Vendrow are disclosed?

The filing lists a sale by Vlad Vendrow on August 21, 2026 of 18,791 shares of common stock for proceeds of $1,240,241.70 during the past three months.

What sales by the Vendrow children’s trust involving RNG shares are disclosed?

The filing reports that the Regina Vendrow TR UA 10/30/2015 2015 Vendrow Children’s Trust FBO David G Vendrow sold 10,000 shares of RingCentral common stock on August 4, 2026 for $600,308.00.

What restricted RingCentral (RNG) stock positions are referenced in the Form 144?

Two restricted stock positions from the issuer are identified: 4,838 shares dated August 20, 2026 and 3,900 shares dated September 1, 2026, both classified as Restricted Stock and to be sold under Rule 144.

What is the stated total number of RingCentral (RNG) shares outstanding in this filing?

The filing references 73,736,624 shares of RingCentral common stock outstanding in connection with the Rule 144 notice listing the 8,738 shares proposed to be sold as of September 4, 2026.

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Available on EDGAR 09/04/2026 - 04:48 PM Accepted by SEC EDGAR 09/04/2026 - 04:47 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001599821
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	RINGCENTRAL, INC.
SEC File Number	001-36089
Address of Issuer	20 DAVIS DRIVE BELMONT CALIFORNIA 94002
Phone	650-472-4100
Name of Person for Whose Account the Securities are To Be Sold	VLAD VENDROW
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	10% Stockholder

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	8738	646813.85	73736624	09/04/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/20/2026	Restricted Stock	Issuer			4838	08/20/2026	Not Applicable
Common	09/01/2026	Restricted Stock	Issuer			3900	09/01/2026	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
VLAD VENDROW 20 Davis Drive Belmont CA 94002	Common	08/21/2026	18791	1240241.70
REGINA VENDROW TR UA 10/30/2015 2015 VENDROW CHILDREN'S TRUST FBO DAVID G VENDROW 20 Davis Drive Belmont CA 94002	Common	08/04/2026	10000	600308.00

144: Remarks and Signature

Remarks
Date of Notice	09/04/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Vlad Vendrow
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)