Amprius Technologies, Inc. (AMPX) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Medium Risk
Moderate dilution risk
Last updated: May 07, 2026

Risk Assessment Details

Potential Dilution: 14.6% of current shares
Recent Dilution: 22.21% (2 years)
Historical Dilution Factor: moderate recent dilution
Outstanding Shares
140M
Potential Supply
20M
Additional shares possible
Splits
None
Past 2 years

Summary

AMPX currently has 137M outstanding shares. with limited dilution risk as only 20M additional shares (14.6%) are authorized for issuance. The company has diluted shareholders by 22.21% over the past 2 years through share issuances.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
May 07, 2026

10-Q filing | 136.9M shares outstanding

140M 20M
Jan 12, 2026

8-K filing: Amprius Technologies, Inc. completed its at-the-market equity offering program, issuing 25.5 million shares of common stock and generating net proceeds of approximately $97.5 million. ($97.5M proceeds)

130M 20M
Nov 06, 2025

10-Q filing | 126.6M shares outstanding

130M 20M
Aug 07, 2025

10-Q filing | 121.8M shares outstanding

120M 20M
May 08, 2025

10-Q filing | 118.0M shares outstanding

120M 20M
Mar 20, 2025

10-K filing | 117.9M shares outstanding

120M 20M
Nov 07, 2024

10-Q filing | 110.4M shares outstanding

110M 20M
Aug 09, 2024

10-Q filing | 111.1M shares outstanding

110M 20M
May 09, 2024

10-Q filing | 90.0M shares outstanding

90M 20M
Mar 28, 2024

10-K filing | 86.2M shares outstanding

86M 20M
Nov 13, 2023

10-Q filing | 86.4M shares outstanding

86M 20M
Oct 27, 2023

RW filing: Request for Withdrawal of Registration Statement on Form S-4 (File No. 333-272466) due to termination of Merger Agreement.

86M 20M
Oct 27, 2023

POS AM filing: This Post-Effective Amendment No. 2 is filed to terminate the effectiveness of the Registration Statement and to remove from registration the 13,787,810 shares of the Registrant's common stock that were registered but not sold under the Registration Statement.

86M 20M
Oct 03, 2023

S-3 filing: Amprius Technologies, Inc. is filing an S-3 to offer common stock, preferred stock, debt securities, depositary shares, subscription rights, and purchase contracts for up to $400,000,000.

86M 20M
Oct 03, 2023

POS AM filing: This prospectus relates to the offer by Amprius Technologies, Inc. of up to 22,733,236 shares of common stock issuable upon the exercise of warrants at a price of $11.50 per share.

86M 20M
Oct 03, 2023

POS AM filing: This prospectus relates to the registration of the Common Stock, par value $0.0001 per share, of Amprius Technologies, Inc. and warrants to purchase shares of Common Stock.

86M 20M
Aug 11, 2023

10-Q filing | 85.2M shares outstanding

85M 43M
May 11, 2023

10-Q filing | 84.6M shares outstanding

85M 43M
Apr 05, 2023

POS AM filing: This prospectus relates to the registration of the Common Stock and warrants to purchase shares of Common Stock of Amprius Technologies, Inc. and the resale by the Selling Securityholders.

85M 43M
Apr 05, 2023

S-1 filing: The offering is for 22,733,336 shares of common stock issuable upon the exercise of warrants with an exercise price of $11.50 per share.

85M 43M
Apr 05, 2023

POS AM filing: This prospectus relates to the offer and resale of up to 16,409,222 shares of our common stock by B. Riley Principal Capital II, LLC.

85M 43M
Mar 30, 2023

10-K filing | 84.6M shares outstanding

85M 170M
Nov 16, 2022

S-1/A filing: This S-1/A filing registers the offer and resale of common stock and warrants by the company and selling securityholders.

84M 170M
Nov 16, 2022

S-1/A filing: This S-1/A filing relates to the offer and resale of up to 16,825,366 shares of common stock by B. Riley Principal Capital II, LLC pursuant to a common stock purchase agreement. The company may receive up to $200,000,000 in aggregate gross proceeds from sales of common stock to BRPC II.

84M 170M
Nov 14, 2022

10-Q filing | 84.5M shares outstanding

84M 62M
Oct 25, 2022

S-1/A filing: This S-1/A filing registers the offer and resale of common stock and warrants, including private warrants, public warrants, and warrants purchased as part of units, by the company and selling securityholders.

110M 62M
Oct 25, 2022

S-1/A filing: This prospectus relates to the offer and resale of up to 16,825,366 shares of our common stock by B. Riley Principal Capital II, LLC pursuant to a common stock purchase agreement, with the company potentially receiving up to $200,000,000 in aggregate gross proceeds.

84M 62M
Sep 30, 2022

S-1 filing: This S-1 filing registers shares of common stock and warrants of Amprius Technologies, Inc. for offer and resale by the company and selling securityholders.

84M 140M
Sep 30, 2022

S-1 filing: The filing relates to the offer and resale of up to 16,825,366 shares of common stock by B. Riley Principal Capital II, LLC pursuant to a common stock purchase agreement. The company may receive up to $200,000,000 in aggregate gross proceeds under the agreement.

84M 140M
Aug 12, 2022

10-Q filing | 23.0M shares outstanding

23M 20M
May 17, 2022

10-Q filing | 23.0M shares outstanding

23M 20M
Feb 23, 2022

S-1/A filing: This S-1/A filing registers the offering of 20,000,000 units at $10.00 per unit, each consisting of one Class A ordinary share, one Class 1 warrant, and one Class 2 warrant.

29M 20M
Feb 11, 2022

S-1/A filing: This S-1/A filing describes an offering of 20,000,000 units at $10.00 per unit, each unit consisting of one Class A ordinary share, one Class 1 redeemable warrant, and one Class 2 redeemable warrant. It also covers 14,800,000 private placement warrants at $0.50 per warrant exercisable for Class A ordinary shares.

9.9M 35M
Jan 20, 2022

S-1 filing: This S-1 filing details the offering of 20,000,000 units at $10.00 per unit, each consisting of one Class A ordinary share, one Class 1 redeemable warrant, and one Class 2 redeemable warrant, along with a simultaneous private placement of 14,800,000 warrants at $0.50 per warrant.

9.9M 0
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