Page 11 - Martin Marietta - 2022 Proxy Statement

PROXY /

Practices Contributing to Board Effectiveness
• Identification of diverse Board candidates

• Meaningful refreshment
• Rotation of Board committee assignments based on experience and expertise
• Robust onboarding
• Tenure and overboarding guidelines
• Our Board refreshment has resulted in a decrease of the Board’s average tenure, with a greater mix of Directors with
long-term knowledge of the Company, its strategy, opportunities and challenges, and those with new perspectives

Director Nominees

INDEPENDENCE GENDER CEO EXPERIENCE DIVERSITY

3
45%
45%
91%
PROXY HIGHLIGHTS BOARD MEMBERS ARE BOARD MEMBERS PUBLIC COMPANY CEO WOMEN OR MINORITIES

BOARD MEMBERS ARE
CURRENT OR FORMER
ARE WOMEN
INDEPENDENT

7.5 64.9
TENURE AGE

YEARS AVERAGE
AVERAGE YEARS OF
5 AGE
4
1 3
2 2 2 2
0 1 INDEPENDENT
2 2 - 6 7 - 10 11 - 14 15 50 - 60 61 - 65 66 - 70 >70

Board Attendance
In 2021, during their terms of service, all directors attended 100% of the Board meetings and all directors attended at
least 75% of the committee meetings to which they were assigned. All directors then in office participated by
telephone conference call in the May 2021 Annual Meeting.

6 2022 PROXY STATEMENT