Form 144 - Report of proposed sale of securities

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144: Remarks and Signature

Remarks	The shares were acquired upon the redemption by the holder of common units in Boston Properties Limited Partnership (BPLP), of which the Issuer is the general partner. The common units were acquired upon conversion of LTIP units in BPLP issued as long-term incentive compensation pursuant to the Issuer's equity incentive programs.
Date of Notice	03/06/2024
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Raymond A Ritchey
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)