ILLUMINA, INC. (ILMN) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Low Risk
Limited dilution potential
Last updated: October 31, 2025

Risk Assessment Details

Potential Dilution: 0.0% of current shares
Recent Dilution: 0% (2 years)
Historical Dilution Factor: minimal recent dilution
Outstanding Shares
150M
Potential Supply
0
Additional shares possible
Splits
None
Past 2 years

Summary

ILMN currently has 153M outstanding shares. with minimal authorized share overhang for future dilution. The company has not diluted shareholders through share issuances in the past 2 years, which is positive for existing holders.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
Oct 31, 2025

10-Q filing | 153.0M shares outstanding

150M 0
Aug 01, 2025

10-Q filing | 157.0M shares outstanding

160M 0
May 09, 2025

10-Q filing | 159.0M shares outstanding

160M 0
Feb 12, 2025

10-K filing | 159.0M shares outstanding

160M 0
Nov 06, 2024

10-Q filing | 159.0M shares outstanding

160M 0
Aug 07, 2024

10-Q filing | 159.0M shares outstanding

160M 0
May 03, 2024

10-Q filing | 159.0M shares outstanding

160M 0
Feb 16, 2024

10-K filing | 158.0M shares outstanding

160M 0
Nov 13, 2023

10-Q filing | 158.0M shares outstanding

160M 0
Aug 10, 2023

10-Q filing | 158.0M shares outstanding

160M 0
May 05, 2023

10-Q filing | 158.0M shares outstanding

160M 0
Feb 17, 2023

10-K filing | 157.0M shares outstanding

160M 0
Nov 04, 2022

10-Q filing | 157.0M shares outstanding

160M 0
Aug 11, 2022

10-Q filing | 157.0M shares outstanding

160M 0
May 05, 2022

10-Q filing | 157.0M shares outstanding

160M 0
Feb 18, 2022

10-K filing | 151.0M shares outstanding

150M 0
Nov 05, 2021

10-Q filing | 153.0M shares outstanding

150M 0
Aug 18, 2021

8-K filing: Illumina completed the acquisition of GRAIL on August 18, 2021, issuing approximately 9.8 million shares of Illumina Common Stock and 388.6 million Contingent Value Rights (CVRs) to former holders of GRAIL Stock and Equity Awards, and paying approximately $3.5 billion in cash.

150M 0
Aug 06, 2021

10-Q filing | 147.0M shares outstanding

150M 0
Apr 28, 2021

10-Q filing | 146.0M shares outstanding

150M 0
Feb 17, 2021

10-K filing | 147.0M shares outstanding

150M 0
Oct 30, 2020

10-Q filing | 146.0M shares outstanding

150M 0
Sep 21, 2020

8-K filing: Illumina, Inc. entered into a Merger Agreement with GRAIL, Inc. on September 20, 2020, to acquire GRAIL through a merger of SDG Ops, Inc. and SDG Ops, LLC, both wholly owned subsidiaries of Illumina, with consideration including cash, Illumina common stock, and contingent value rights.

150M 0
Aug 07, 2020

10-Q filing | 147.0M shares outstanding

150M 0
May 01, 2020

10-Q filing | 147.0M shares outstanding

150M 0
Feb 11, 2020

10-K filing | 147.0M shares outstanding

150M 0
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