Prime Medicine, Inc. (PRME) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

High Risk
Significant dilution risk
Last updated: May 07, 2026

Risk Assessment Details

Potential Dilution: 31.88% of current shares
Recent Dilution: 47.93% (2 years)
Historical Dilution Factor: significant recent dilution
Outstanding Shares
180M
Potential Supply
56M
Additional shares possible
Splits
None
Past 2 years

Summary

PRME currently has 177M outstanding shares. with moderate dilution risk from 56.5M authorized shares representing 31.9% potential dilution. The company has significantly diluted shareholders by 47.93% over the past 2 years, indicating aggressive capital raising.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
May 07, 2026

10-Q filing | 177.1M shares outstanding

180M 56M
Aug 07, 2025

10-Q filing | 129.2M shares outstanding

130M 56M
May 08, 2025

10-Q filing | 130.9M shares outstanding

130M 56M
Feb 28, 2025

10-K filing | 118.6M shares outstanding

120M 56M
Dec 13, 2024

S-3 filing: The filing is an S-3 form for a shelf registration statement, allowing the selling stockholder to offer and sell shares of the company's common stock.

120M 56M
Nov 12, 2024

10-Q filing | 119.8M shares outstanding

120M 56M
Sep 30, 2024

8-K filing: Prime Medicine, Inc. entered into a Securities Purchase Agreement with Juno Therapeutics, Inc., a wholly-owned subsidiary of Bristol-Myers Squibb Company, to sell and issue 11,006,163 shares of its common stock for $55.0 million, with the closing expected on September 30, 2024. ($55.0M proceeds)

120M 56M
Aug 08, 2024

10-Q filing | 119.2M shares outstanding

120M 56M
May 10, 2024

10-Q filing | 120.0M shares outstanding

120M 56M
Mar 01, 2024

10-K filing | 119.9M shares outstanding

120M 56M
Nov 03, 2023

10-Q filing | 91.8M shares outstanding

92M 56M
Nov 03, 2023

S-3 filing: This S-3 filing relates to an at-the-market offering of common stock with an aggregate offering price of up to $300,000,000.

97M 56M
Aug 07, 2023

10-Q filing | 90.5M shares outstanding

90M 10M
May 11, 2023

10-Q filing | 89.1M shares outstanding

89M 10M
Mar 09, 2023

10-K filing | 97.2M shares outstanding

97M 10M
Nov 14, 2022

10-Q filing | 97.2M shares outstanding

97M 10M
Oct 17, 2022

S-1/A filing: This S-1/A filing registers an offering of 8,900,000 shares of common stock. The company estimates net proceeds of $136.2 million from the sale of these shares, assuming an initial public offering price of $17.00 per share. The underwriters also have an option to purchase up to 1,335,000 additional shares.

94M 10M
Oct 13, 2022

S-1/A filing: This S-1/A filing registers an offering of common stock, with 8,900,000 shares offered by the company and an additional 1,335,000 shares available through the underwriters' option to purchase. The company intends to use the net proceeds for research and development, clinical studies, manufacturing processes, and general corporate purposes.

85M 10M
Sep 23, 2022

S-1 filing: This is an S-1 filing for an IPO of common stock. The number of shares outstanding after the offering is based on 265,603,788 shares as of June 30, 2022, after giving effect to the conversion of preferred stock.

270M 0
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