144: Issuer Information

Name of Issuer

BOSTON PROPERTIES INC

SEC File Number

001-13087

Address of Issuer

800 BOYLSTON STREET
SUITE 1900
BOSTON
MASSACHUSETTS
02199

Phone

6172363300

Name of Person for Whose Account the Securities are To Be Sold

Otteni Peter V

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

Officer

144: Securities Information

Title of the Class of Securities To Be Sold

Name and Address of the Broker

Number of Shares or Other Units To Be Sold

Aggregate Market Value

Number of Shares or Other Units Outstanding

Approximate Date of Sale

Name the Securities Exchange

Common Stock, par value $0.01

TD Ameritrade Institutional
7801 Mesquite Bend Dr.
Irving TX 75063

10463

544495.00

156835488

06/07/2023

NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class

Date you Acquired

Nature of Acquisition Transaction

Name of Person from Whom Acquired

Is this a Gift?

Date Donor Acquired

Amount of Securities Acquired

Date of Payment

Nature of Payment *

Common Stock, par value $0.01

06/02/2023

Redemption of common units in Boston Properties Limited Partnership (see Remarks)

Boston Properties, Inc.

10463

06/02/2023

Redemption of Partnership Interest

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks

The shares reported herein 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

06/07/2023

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

Kelli A. DiLuglio, as Attorney-in-Fact

144: Filer Information

Submission Contact Information