Company: CSTL
Filing Date: 2025-03-28
Form Type: PRE 14A
Source: 0001447362-25-000050
Chunk: 32

Company: CASTLE BIOSCIENCES INC
Filing Date: 2025-03-28
Form: PRE 14A
Chunk 32
---
 mental health and ocular cancer organizations through fundraising efforts, educational sponsorship, community development efforts, charity drives, and partnerships targeted at patient groups who may benefit from our tests.

### Code of Business Conduct and Ethics
We have a written Ethics Code that applies to all officers, directors and employees, including our principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions. The Ethics Code is available on our website at www.CastleBiosciences.com. If we ever were to amend or waive any provision that applies to our principal executive officer, principal financial officer, principal accounting officer or any person performing similar functions, we intend to satisfy our disclosure obligations, if any, with respect to any such waiver or amendment by posting such information on our website, rather than by filing a Current Report on Form 8-K.

#### Strong Governance
Our board of directors and senior leadership actively support and promote strong governance and risk management across Castle. This culture of transparency and accountability affirms our unwavering commitment to our values. Our board members set the tone for Castle and, along with all employees, are required to comply with the standards in our Ethics Code, which we believe is based on best practices that meet or exceed current rules and regulations of the SEC and Nasdaq listing standards.

We are committed to conducting our business in a manner that is fair, ethical and responsible to earn and maintain the trust of our stakeholders. Castle is committed to working with vendors willing to support our initiatives. Recently, we published a Vendor Code of Conduct that addresses our expectations of all Castle vendors regarding responsible and ethical conduct. This includes compliance with anti-bribery and anti-corruption laws; prohibition of discrimination and harassment; and upholding product quality, fair labor practices, health and safety, and environmental laws.

#### 32Castle Biosciences 2025 Proxy Statement
| Information Regarding the Board of Directors and Corporate Governance |

Our Board, including through its Audit Committee, is responsible for overseeing our risk management processes and regularly discusses with management our risks and subsequent strategies. We have implemented risk management programs to foster compliance with applicable laws and regulations governing ethical business practices. Our employees are responsible for complying with our data security standards and complete mandatory annual training to understand the behaviors and technical requirements necessary to keep patient personally identifiable information secure. In 2024, 100% of Castle employees completed training on compliance, fraud, waste and abuse.

Our IT team works 24/7 and uses a combination of advanced tools and innovative technologies to help protect our stakeholders’