Company: CSTL
Filing Date: 2025-04-09
Form Type: DEF 14A
Source: 0001447362-25-000054
Chunk: 31

Company: CASTLE BIOSCIENCES INC
Filing Date: 2025-04-09
Form: DEF 14A
Chunk 31
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 of his or her compensation by giving notice to us prior to the date cash may be paid or equity awards are to be granted, as the case may be.

In any calendar year, the total cash fees paid, together with equity awards granted, to any non-employee director for service on the Board will not exceed $350,000 in total value or, with respect to the calendar year in which a non-employee director is first appointed or elected to the Board, $550,000 and, in each case, calculating the value of equity awards based on the grant date value of such awards for financial reporting purposes.

### STOCK OWNERSHIP GUIDELINES
Based on stockholder feedback gathered in 2022, the board of directors adopted Stock Ownership Guidelines in 2023 that apply to our CEO and our Section 16 officers and our non-employee directors. The guideline multiple for directors is three times amount of annual cash retainer. See the section entitled: “Compensation Discussion and Analysis—Stock Ownership Guidelines” section in this Proxy Statement for more information.

### CORPORATE RESPONSIBILITY PROGRAM

#### Board Oversight
We believe that building a strong corporate responsibility program that is relevant to our core business and our stakeholders is essential for success. In April 2021, our Board amended our Audit Committee Charter to delegate the review and oversight of our corporate responsibility program to the Audit Committee, which was designed to ensure appropriate oversight of relevant business risks and opportunities in ways that optimize opportunities to make positive impacts while advancing long-term goals. We are committed to advancing our corporate responsibility strategy, assessing key metrics that support operational efficiency and long-term success.

Fostering a Workplace That Attracts and Retains Top Talent

We thrive on the contributions each person brings to Castle by valuing inclusion, developing talent, fostering teamwork and rewarding success. We understand the importance of maintaining a strong corporate culture with our employees at the center, based on the cornerstones we laid in 2008 at our inception: trust, excellence, collaboration, integrity, innovation and excitement. To foster these values and to attract and retain quality employees, we strive to hire, develop and promote a workforce that shares our mission and cultivates a culture of inclusion.

#### Employee Engagement
We value the unique perspective our employees bring to the organization and encourage open channels of communication. In June 2024, we conducted our fourth annual employee engagement survey to understand what was working well at Castle and what opportunities we had for improvement. We received feedback from over 95% of our employees and achieved an engagement score