X0508 4 2026-02-13 0 0001037540 BXP, Inc. BXP 0001219153 RITCHEY RAYMOND A C/O BXP 2200 PENNSYLVANIA AVENUE, NW WASHINGTON DC 20037 0 1 0 0 Senior EVP 0 LTIP Units 2026-02-13 4 A 0 15163 0.25 A Common Stock, par value $.01 15163 93357 D Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, earned (i.e., for which the performance-based hurdles have been met) pursuant to the Issuer's 2023 Multi-Year Long-Term Incentive Program (the "Program"). Conditioned upon minimum allocations to the capital accounts of the LTIP Units for federal income tax purposes, each LTIP Unit may be converted, at the election of BPLP or the holder, into a common unit of limited partnership interest in BPLP ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be presented for redemption, at the election of the holder, for cash equal to the then fair market value of a share of the Issuer's common stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for one share of the Issuer's common stock. LTIP Units have no expiration date. The LTIP Units earned pursuant to the Program vested in full upon being earned. Each earned LTIP Unit and Common OP Unit acquired upon conversion of such LTIP Unit is subject to an additional post-vesting holding period pursuant to which such LTIP Unit and Common OP Unit generally may not be transferred, and the redemption right associated with the Common OP Unit may not be exercised, until one year after the vesting date. Reflects the forfeiture of 14,391 LTIP Units originally issued on February 7, 2023 pursuant to the Program that were previously reported as beneficially owned by the Reporting Person, but remained subject to certain performance-based vesting hurdles based on the Issuer's total shareholder return for the period from February 7, 2023 to February 6, 2026. /s/ Kelli A. DiLuglio, as Attorney-in-Fact 2026-02-17