Form 4 Filing for BXP, Inc. - Executive Officer Transaction

Peter V. Otteni, Executive Vice President of BXP, Inc., acquired 42,373 LTIP Units on December 22, 2025. The acquisition price was $0.25 per unit. Following this transaction, Mr. Otteni holds 91,647 LTIP Units. These LTIP Units are part of the Issuer's 2025 Outperformance Plan and are subject to both performance-based and time-based vesting conditions. Performance is measured by the appreciation of BXP's common stock price over a four-year period ending December 22, 2029, with vesting tiers ranging from $90.00 to $118.00. Time-based vesting occurs over three years, starting with one-third on the second anniversary of the grant date. Each LTIP Unit may convert into a common unit of limited partnership interest in BPLP, which can then be redeemed for cash or exchanged for one share of BXP common stock.