Aurora Innovation, Inc. (AUR) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Medium Risk
Moderate dilution risk
Last updated: May 06, 2026

Risk Assessment Details

Potential Dilution: 19.05% of current shares
Recent Dilution: 33.12% (2 years)
Historical Dilution Factor: significant recent dilution
Outstanding Shares
1.7B
Potential Supply
320M
Additional shares possible
Splits
None
Past 2 years

Summary

AUR currently has 1.65B outstanding shares. with limited dilution risk as only 315M additional shares (19.1%) are authorized for issuance. The company has significantly diluted shareholders by 33.12% over the past 2 years, indicating aggressive capital raising.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
May 06, 2026

10-Q filing | 1653.9M shares outstanding

1.7B 320M
Oct 28, 2025

10-Q filing | 1596.6M shares outstanding

1.6B 320M
Jul 30, 2025

10-Q filing | 1506.0M shares outstanding

1.5B 320M
May 08, 2025

10-Q filing | 1418.7M shares outstanding

1.4B 320M
Feb 14, 2025

10-K filing | 1390.3M shares outstanding

1.4B 320M
Oct 31, 2024

10-Q filing | 1351.6M shares outstanding

1.4B 320M
Aug 01, 2024

8-K filing: Aurora Innovation, Inc. entered into an underwriting agreement for the issuance and sale of 116,666,667 shares of Class A common stock at $3.60 per share, with an option for the underwriters to purchase an additional 17,500,000 shares. ($420.0M proceeds)

1.2B 320M
Jul 31, 2024

10-Q filing | 1201.8M shares outstanding

1.2B 320M
May 09, 2024

10-Q filing | 1185.5M shares outstanding

1.2B 320M
Feb 15, 2024

10-K filing | 1168.4M shares outstanding

1.2B 320M
Dec 29, 2023

S-3 filing: The company may offer Class A common stock, preferred stock, depositary shares, debt securities, warrants, subscription rights, purchase contracts and units in one or more offerings up to an aggregate offering price of $850,000,000.

1.1B 320M
Nov 02, 2023

10-Q filing | 1144.1M shares outstanding

1.1B 320M
Aug 03, 2023

10-Q filing | 1179.0M shares outstanding

1.2B 320M
Jul 21, 2023

S-3 filing: Registration of 222,222,216 shares of Class A common stock for sale by selling stockholders.

220M 320M
May 04, 2023

10-Q filing | 771.4M shares outstanding

770M 93M
Apr 06, 2023

S-3 filing: Aurora Innovation, Inc. may offer and sell Class A common stock, preferred stock, depositary shares, debt securities, warrants, subscription rights, purchase contracts and units, with an aggregate offering price not to exceed $350,000,000.

760M 93M
Apr 06, 2023

POS AM filing: This is a POS AM filing for the issuance and resale of Class A Common Stock and Warrants.

770M 93M
Feb 21, 2023

POS AM filing: This POS AM filing registers 903,072,352 shares of Class A common stock and 8,900,000 warrants to purchase shares of Class A common stock, including shares issuable upon conversion of Class B common stock, exercise of options and warrants, and resale by selling securityholders.

740M 93M
Feb 21, 2023

10-K filing | 763.1M shares outstanding

760M 93M
Nov 03, 2022

10-Q filing | 740.4M shares outstanding

740M 93M
Aug 12, 2022

10-Q filing | 724.0M shares outstanding

720M 93M
May 12, 2022

10-Q filing | 705.0M shares outstanding

710M 93M
Mar 11, 2022

10-K filing | 620.8M shares outstanding

620M 93M
Mar 11, 2022

POS AM filing: The filing is a POS AM for registering the issuance of Class A Common Stock upon the exercise of Private Placement Warrants and Public Warrants, as well as securities for resale by Selling Securityholders.

640M 93M
Nov 15, 2021

10-Q filing | 642.9M shares outstanding

640M 110M
Nov 05, 2021

S-1 filing: The filing registers the issuance of Class A Common Stock upon exercise of private placement and public warrants, and also registers securities for resale by selling securityholders.

98M 110M
Aug 11, 2021

10-Q filing | 97.8M shares outstanding

98M 93M
May 17, 2021

10-Q filing | 97.8M shares outstanding

98M 93M
Mar 08, 2021

S-1/A filing: This S-1/A filing registers the offering of 85,000,000 units at $10.00 per unit, each unit consisting of one Class A ordinary share and one-eighth of one redeemable warrant, and 7,880,000 private placement warrants at a price of $2.50 per warrant. It also provides information on founder shares, transfer restrictions, and redemption rights.

24M 93M
Feb 12, 2021

S-1 filing: This S-1 filing details the offering of 85,000,000 units, each consisting of one Class A ordinary share and one-eighth of a redeemable warrant, at a price of $10.00 per unit, along with private placement warrants at $2.50 per warrant.

24M 93M
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