Item 2. Properties
Item 2. Properties
Currently, we do not own any real estate. As of December 31, 2025, we had operating leases for office space in four multi-tenant facilities. The leases include office spaces in Waltham, Massachusetts, Clarkston, Michigan, Scottsdale, Arizona, and Zagreb, Croatia. Our principal executive offices are located at 260 Charles Street, Waltham, Massachusetts 02453.
The lease in Waltham, Massachusetts expires July 31, 2026, and has a monthly rent with escalating payments of $5.8 to $6.8. The lease in Clarkston, Michigan expires November 30, 2027, and has a monthly rent of $2.5. The lease in Scottsdale, Arizona expires July 31, 2028, and has a monthly rent with escalating payments of $7.9 to $8.5. The lease in Zagreb, Croatia expires on June 30, 2028, but grants the tenant the option to terminate the lease with 30-day notice before each lease anniversary, and has a monthly rent of approximately $3.3.
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