AMERICAN TOWER CORP /MA/

As of December 31, 2025, we employed 4,866 full-time individuals, including 2,388 employees based in the United States and 2,478 employees based internationally. Our teams in our more than 20 countries around the world are our most important assets and fundamental to our success. Aligned with our business strategy, our human capital management strategy focuses on developing and delivering solutions to attract, develop, engage and retain top talent in each of the countries where we operate. Our Chief Human Resources Officer regularly reports to the Compensation and Human Capital Committee of our Board of Directors (our “Board”) on our initiatives related to human capital management.

A critical factor in our success is ensuring that an inclusive and collaborative workplace remains at the core of our business culture, infusing fresh ideas, helping us remain connected to our customers in a dynamic global market and ensuring mutual respect guides us in our interactions both internally and externally. Additionally, we have implemented several initiatives designed to support our inclusion efforts, including pledges from the American Tower Foundation. We also enable global employee resource groups to promote better employee engagement, which are open to all employees with the goal of enhancing professional development, connection and collaboration for everyone.

As a critical investment in our capacity to provide our customers with outstanding support and customer service, we offer a variety of development opportunities unique to each market to cultivate our talent throughout our global organization. For individual contributors, we provide resources in up to five languages that focus on job-specific training and general topics, such as productivity, collaboration and project management. We create and customize courses to meet regional needs and update these courses regularly to address changing marketplace dynamics and employee interests.

Developing our managers is critical to our success, and several resources and tools are provided to all levels of management. For example, our Management Essentials program provides continuous learning opportunities through training led by American Tower leaders globally. Managers learn tools and best practices that enable both management and team success, and that build and strengthen competencies to better respond to the needs of a growing and increasingly complex organization. Furthermore, our Gateway to Leadership program builds further on the skills and competencies we deliver through Management Essentials by providing additional leadership training for managers in Europe, Africa and Latin America. Our annual Accelerated Leadership Development program, in collaboration with the INSEAD executive education program, provides our next generation leaders in Latin America, Europe, the U.S. and Africa, with a seven-week intensive workshop to enhance management and leadership skills. For our employees with high potential, we offer several professional development opportunities designed to support these employees through a career path journey to become inclusive leaders. These are all supported by a comprehensive talent-management review process to develop future leaders and ensure effective succession planning. Additionally, our virtual corporate university, ATC YOU, provides our employees with a range of global learning resources for professional development and career growth.

Our recruiting efforts consistently include strategies to build qualified candidate pipelines with varied skills and backgrounds and promote a culture that supports a diverse team of global employees. We have developed education initiatives and increased access to professional development opportunities for employees, including an enhanced focus on mentoring opportunities.

Our Compensation and Human Capital Committee also approved a shared human capital management goal for the entire executive team for 2025, which focuses on developing talent.

We are committed to the safety of our employees and surrounding communities. Depending on the role, team members are required to pass and complete regular safety training courses and follow specific tower and site safety protocols with the support of operational manuals. A key component of our culture is a strong commitment to incident reporting and corrective actions, as well as a comprehensive program for ensuring vendor compliance with safety standards and certifications. Our strict adherence to the rigorous standards set forth by the relevant government agencies and other authorities, such as the Telecommunications Infrastructure Registered Apprenticeship Program and Telecommunications Industry Association, is critical to ensuring our towers are structurally safe for field personnel, vendors, customers and communities. We have several employee security protocols and standards in place to better protect our people and assets worldwide. These include global standards for the security of international travelers and personnel ground movements. We also operate a traveler assistance program that allows us to better monitor international travel and provide employees with relevant trip advice and 24/7 assistance services. A related journey risk management program provides support for trips in complex threat environments, and includes hostile environment awareness training, real-time tracking of personnel and 24/7 support. Furthermore, as part of our efforts to globalize our operations, we created a new global Health & Safety (“H&S”) function tasked with strengthening our H&S policies and culture, ensuring compliance with global and local regulations and fostering a proactive safety-first mindset across all organizational levels.

We offer medical and parental leave benefits to full-time employees across all markets, with some local variation. We conduct wellness check-ins and offer resources to support our employees’ mental health and well-being, including access to a free Employee Assistance Program, which offers confidential assistance on a wide range of issues. We also offer market competitive benefits in all locations and, in 2025, continued our behavioral health benefit in the United States to support employees’ mental well-being.