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Castle Biosciences Reports Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)

Key Takeaway: Castle Biosciences, Inc. has granted restricted stock units (RSUs) to 83 employees as part of its 2022 Inducement Plan, in accordance with Nasdaq Listing Rule 5635(c)(4). The RSUs, covering 139,494 shares, will vest over four years, incentivizing employee retention. This initiative underscores the company's commitment to enhancing its workforce while focusing on innovative diagnostic solutions.
Price reaction · baseline $39.6 (2025-12-18 close) · hit pre-market · 1 other CSTL headline(s) in the window, move may be shared
day 0 close · peak
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Market Sentiment Analysis

POSITIVE FACTORS

  • Castle Biosciences is expanding its workforce with new hires.
  • The RSUs granted are part of a strategic plan 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 covering 139,494 shares.

How long will the RSUs vest?

The RSUs will vest over four years, with 25% vesting on the first anniversary.

What is the purpose of granting RSUs?

The RSUs are part of an inducement plan to attract and retain talent.

Under which Nasdaq rule were the RSUs granted?

The RSUs were granted under Nasdaq Listing Rule 5635(c)(4).

Last updated: Dec 19, 2025