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Castle Biosciences Reports Inducement Grants Under Nasdaq Listing Rule 5635(c)(4) - December 19, 2025

Key Takeaway: Castle Biosciences announced the granting of restricted stock units (RSUs) to 83 employees as an inducement for their employment. The RSUs, totaling 139,494 shares, will vest over four years, aligning employee retention with company growth. This initiative is part of the company's 2022 Inducement Plan, adhering to Nasdaq Listing Rule 5635(c)(4).

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POSITIVE FACTORS

  • Castle Biosciences is expanding its workforce with new hires.
  • The RSUs granted are a strategic move to attract talent.
  • The company continues to focus on innovative health solutions.

Full Press Release Details

FRIENDSWOOD, Texas, Dec. 19, 2025 (GLOBE NEWSWIRE) -- Castle Biosciences, Inc. (Nasdaq: CSTL), a company improving health through innovative tests that guide patient care, today announced that on Dec. 15, 2025, the Compensation Committee of its Board of Directors granted restricted stock units (RSUs) to 83 employees covering an aggregate of 139,494 shares of common stock as an inducement material to their entering into employment with Castle Biosciences. The RSUs were granted pursuant to the Company’s 2022 Inducement Plan in accordance with Nasdaq Listing Rule 5635(c)(4).
The RSUs will vest over four years, with 25% of the shares vesting on the first anniversary of the applicable vesting commencement date, and the balance vesting annually thereafter in three equal installments, subject to the employee’s continued service through each applicable vesting date.
About Castle BiosciencesCastle Biosciences (Nasdaq: CSTL) is a leading diagnostics company improving health through innovative tests that guide patient care. With a primary focus in dermatologic and gastroenterological disease, we develop personalized, clinically actionable solutions that help improve disease management and patient outcomes.
We put people first—empowering patients and clinicians and informing care decisions through rigorous science and advanced molecular tests that support more confident treatment planning. To learn more, visitwww.CastleBiosciences.comand connect with us onLinkedIn,Instagram,FacebookandX.
DecisionDx-Melanoma, DecisionDx-CMSeq, i31-SLNB, i31-ROR, DecisionDx-SCC, MyPath Melanoma, AdvanceAD-Tx, TissueCypher, DecisionDx-UM, DecisionDx-PRAME and DecisionDx-UMSeqare trademarks of Castle Biosciences, Inc.

Investor Contact:Camilla Zuckeroczuckero@castlebiosciences.com

Source:Castle Biosciences Inc.

Frequently Asked Questions

What are the RSUs granted by Castle Biosciences?

Castle Biosciences granted restricted stock units (RSUs) to 83 employees.

How many shares are covered by the RSUs?

The RSUs cover an aggregate of 139,494 shares of common stock.

What is the vesting schedule for the RSUs?

The RSUs will vest over four years, with 25% vesting after the first year.

What is the purpose of the RSU grants?

The RSUs are an inducement for employees entering employment with Castle Biosciences.

Last updated: Dec 22, 2025