PRME 8-K: Secondary offering

Prime Medicine

Filed with the SEC on · accession 0001628280-26-073131

PRME filed a 8-K (current report) with the SEC on Nov 12, 2026. Prime Medicine entered into an underwriting agreement for an underwritten public offering of 35,714,286 shares of common stock at $3.50 per share, with an option for underwriters to purchase up to an additional 5,357,142 shares.

Summary of the filing

Prime Medicine entered into an underwriting agreement for an underwritten public offering of 35,714,286 shares of common stock at $3.50 per share, with an option for underwriters to purchase up to an additional 5,357,142 shares. The company expects net proceeds of approximately $134.7 million to fund its Wilson disease and alpha-1 antitrypsin deficiency programs and general corporate purposes.

Key details

Public offering price per share$4
Number of underwritten shares$35.7M
Option shares available to underwriters$5.4M
Estimated net proceeds from offering$134.7M
IssuerPrime Medicine, Inc.
UnderwriterJefferies LLC
UnderwriterTD Securities (USA) LLC
UnderwriterGoldman Sachs & Co. LLC
Legal counselGoodwin Procter LLP

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Frequently asked questions

What did PRME file with the SEC on Nov 12, 2026?

PRME filed a 8-K (Secondary offering). Prime Medicine entered into an underwriting agreement for an underwritten public offering of 35,714,286 shares of common stock at $3.50 per share, with an option for underwriters to purchase up to an additional 5,357,142 shares. The company expects net proceeds of approximately $134.7 million to fund its Wilson disease and alpha-1 antitrypsin deficiency programs and general corporate purposes.

What does a secondary offering mean for PRME stock?

New shares dilute existing holders and are often sold at a discount to the market price.

How do I read a 8-K?

A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The "Item" number tells you the topic (e.g. 2.02 results, 5.02 executive change, 1.01 new agreement, 1.03 bankruptcy). Exhibits (99.1 press release) usually hold the details.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 8-K (current report): A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more.

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