Curis, Inc. filed a Post-Effective Amendment No. 1 to fourteen previously effective Form S-8 registration statements on November 13, 2026, redirecting 173,744 shares of common stock from its legacy equity plans to the newly stockholder-approved 2026 Incentive Plan.

Key Highlights

  • 173,744 shares redirected: The maximum number of shares previously registered under fourteen registration statements and available under the 2010 Plan and Inducement Grants will now be issuable under the 2026 Incentive Plan, according to the filing.
  • No new securities registered: The filing states explicitly that "no additional securities are being registered by this Post-Effective Amendment."
  • 2026 Plan effective March 17, 2026: Stockholders approved the 2026 Incentive Plan on that date, at which point no new awards could be granted under the Fifth Amended and Restated 2010 Stock Incentive Plan.
  • 1-for-20 reverse stock split: Curis effected a 1-for-20 reverse stock split on July 2, 2026; the 173,744 share figure is adjusted to reflect that split.
  • Net loss reported: As adjusted for the reverse split, the company reported a net loss of $24,199 thousand for the three months ended March 31, 2026, with net loss per share (basic and diluted) of $24.99.
  • Smaller reporting company: Curis is classified as a smaller reporting company and non-accelerated filer, as indicated on the filing cover page.

Curis Realigns Registered Share Pool Under the 2026 Incentive Plan

Curis, Inc. (NASDAQ:CRIS), a Delaware-incorporated biopharmaceutical company headquartered at 128 Spring Street, Building C, Suite 500, Lexington, MA, filed this Post-Effective Amendment to fourteen previously filed Form S-8 registration statements covering file numbers 333-167675 through 333-291324. The company disclosed that the amendment is being filed pursuant to the undertaking in Item 512(a)(1)(iii) of Regulation S-K, to reflect a material change in the plan of distribution as originally disclosed in those registration statements. James E. Dentzer, President and Chief Executive Officer, is named as the agent for service of process.

According to the filing, on March 17, 2026, Curis stockholders approved the 2026 Incentive Plan. From that effective date onward, the 2010 Plan was closed to new award grants, though the terms and conditions of the 2010 Plan continue to govern any awards previously granted under it. Shares that remain available under the 2010 Plan, as well as shares tied to outstanding awards that expire, terminate, are surrendered, cancelled, forfeited, or repurchased at their original issuance price, become available for issuance under the 2026 Plan. The company stated that the 173,744 shares reflected in this amendment are adjusted to account for the 1-for-20 reverse stock split effected on July 2, 2026.

The filing also includes selected financial data, as adjusted for the reverse stock split, drawn from Curis's Annual Report on Form 10-K for the fiscal year ended December 31, 2025, and its Quarterly Report on Form 10-Q for the period ended March 31, 2026. On an as-adjusted basis, weighted-average shares outstanding (basic and diluted) for the three months ended March 31, 2026 were 968,276, compared with 424,781 for the same period in 2025. For the year ended December 31, 2024, the company reported a net loss of $43,389 thousand, while the year ended December 31, 2025 reflected a net loss of $7,582 thousand. The filing notes that "historical results are not indicative of the results that may be expected in the future."

What Was Disclosed

Curis filed a Post-Effective Amendment to fourteen Form S-8 registration statements on November 13, 2026, transferring 173,744 reverse-split-adjusted shares from the 2010 Stock Incentive Plan and Inducement Awards to the 2026 Incentive Plan, with no additional securities being registered.