Ribbon Communications Inc. (RBBN) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Medium Risk
Moderate dilution risk
Last updated: October 23, 2025

Risk Assessment Details

Potential Dilution: 82.84% of current shares
Recent Dilution: 2.02% (2 years)
Historical Dilution Factor: minimal recent dilution
Outstanding Shares
180M
Potential Supply
150M
Additional shares possible
Splits
None
Past 2 years

Summary

RBBN currently has 177M outstanding shares. with significant dilution risk as 146M authorized shares could dilute existing holders by 82.8%. The company has minimally diluted shareholders by 2.02% over the past 2 years.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
Oct 23, 2025

10-Q filing | 176.6M shares outstanding

180M 150M
Jul 24, 2025

10-Q filing | 176.7M shares outstanding

180M 150M
Apr 30, 2025

10-Q filing | 175.7M shares outstanding

180M 150M
Feb 27, 2025

10-K filing | 174.0M shares outstanding

170M 150M
Oct 24, 2024

10-Q filing | 174.6M shares outstanding

170M 150M
Jul 29, 2024

10-Q filing | 173.8M shares outstanding

170M 150M
May 15, 2024

10-Q filing | 172.4M shares outstanding

170M 150M
Feb 28, 2024

10-K filing | 170.4M shares outstanding

170M 150M
Oct 26, 2023

10-Q filing | 171.2M shares outstanding

170M 150M
Jul 27, 2023

10-Q filing | 170.1M shares outstanding

170M 150M
May 17, 2023

S-3/A filing: This is an S-3/A filing including a Form of Warrant Agreement, dated March 30, 2023, by and between the Company and American Stock Transfer & Trust Company as Warrant Agent.

170M 150M
Apr 28, 2023

10-Q filing | 168.5M shares outstanding

170M 150M
Apr 04, 2023

S-3 filing: Ribbon Communications Inc. files an S-3 registration statement for the potential offering of $250,000,000 in various securities, including common stock, preferred stock, debt securities, warrants, units, depositary shares and subscription rights. It also covers the offer and resale of 55,000 shares of Series A preferred stock, 4,858,090 warrants and 4,858,090 shares of common stock underlying the PIPE Warrants by selling securityholders.

160M 170M
Mar 31, 2023

10-K filing | 156.7M shares outstanding

160M 86M
Mar 30, 2023

8-K filing: Ribbon Communications Inc. completed a private placement of preferred stock and warrants, generating gross proceeds of approximately $53.4 million, and amended its credit agreement to accommodate the placement and use of proceeds to pay down term loans. ($106.8M proceeds)

160M 84M
Oct 28, 2022

10-Q filing | 158.9M shares outstanding

160M 84M
Sep 14, 2022

S-3 filing: This prospectus relates to the offering and resale by the selling stockholders of up to 92,807,928 shares of common stock of Ribbon Communications Inc.

150M 93M
Aug 16, 2022

8-K filing: Ribbon Communications Inc. completed a private placement on August 12, 2022, selling 17,071,311 shares of its common stock at $3.05 per share, raising approximately $52 million in gross proceeds. ($52.0M proceeds)

150M 0
Jul 28, 2022

10-Q filing | 150.2M shares outstanding

150M 0
May 10, 2022

10-Q filing | 149.2M shares outstanding

150M 0
Mar 11, 2022

10-K filing | 147.6M shares outstanding

150M 0
Oct 28, 2021

10-Q filing | 148.2M shares outstanding

150M 0
Jul 29, 2021

10-Q filing | 147.5M shares outstanding

150M 0
Apr 30, 2021

10-Q filing | 145.9M shares outstanding

150M 0
Feb 26, 2021

10-K filing | 144.7M shares outstanding

140M 0
Oct 30, 2020

10-Q filing | 144.9M shares outstanding

140M 0
Aug 06, 2020

10-Q filing | 144.5M shares outstanding

140M 0
May 08, 2020

10-Q filing | 144.8M shares outstanding

140M 0
Feb 28, 2020

10-K filing | 111.3M shares outstanding

110M 0
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