Scholar Rock Holding Corporation filed a Form 8-K on August 6, 2026, disclosing the filing of a new prospectus supplement that replaces its prior at-the-market offering prospectus supplement and sets an aggregate offering capacity of up to $200,000,000 in common stock through Jefferies LLC.

Key Highlights

  • New ATM capacity: The prospectus supplement covers the offer and sale of shares of Common Stock with an aggregate offering price of up to $200,000,000.
  • Prior supplement terminated: The new prospectus supplement replaces and supersedes the prior prospectus supplement dated November 14, 2025, in its entirety, and the offering under that prior supplement has been terminated.
  • Cumulative net proceeds to date: As of August 6, 2026, the company reported it has raised approximately $257.7 million in net proceeds from shares of Common Stock under the ATM Program.
  • Sales agent: Jefferies LLC continues to serve as sales agent under the Open Market Sale Agreement originally dated November 14, 2022.
  • Registration statement: The prospectus supplement was filed under the company's shelf registration statement on Form S-3ASR (File No. 333-282530), filed October 7, 2024, which became automatically effective upon filing.
  • Legal opinion: Goodwin Procter LLP issued a legal opinion relating to the shares, attached as Exhibit 5.1.

Scholar Rock Files Refreshed ATM Prospectus Supplement Under Existing Shelf Registration

According to the filing, Scholar Rock Holding Corporation (Nasdaq Global Select Market: SRRK) disclosed on August 6, 2026, that it filed a new prospectus supplement with the SEC in connection with its existing at-the-market offering program. The program operates under an Open Market Sale Agreement with Jefferies LLC, originally entered into on November 14, 2022. Under the refreshed supplement, the company may offer and sell, from time to time at its sole discretion, shares of its common stock, par value $0.001 per share, with an aggregate offering price of up to $200,000,000.

The filing states that the new prospectus supplement replaces and supersedes the prior prospectus supplement dated November 14, 2025, "in its entirety," and that the offering under that prior supplement has been terminated. The shares are being registered under the company's shelf registration statement on Form S-3ASR (File No. 333-282530), which the company filed on October 7, 2024, and which became automatically effective upon filing, according to the disclosure.

The company reported that, as of the date of the filing, it has raised approximately $257.7 million in net proceeds from shares of Common Stock sold under the ATM Program in total. The filing also notes that the 8-K "shall not constitute an offer to sell or a solicitation of an offer to buy" the shares described. The report was signed by Junlin Ho, General Counsel and Corporate Secretary, on behalf of Scholar Rock Holding Corporation.

What Was Disclosed

Scholar Rock filed an 8-K disclosing a new $200,000,000 at-the-market offering prospectus supplement that replaces its November 2025 supplement, while reporting approximately $257.7 million in cumulative net proceeds raised under its ATM Program to date.