BXP, Inc. — Director's Dealing 2010

May 5, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BOSTON PROPERTIES INC (BXP)
CIK: 0001037540
Period of Report: 2010-05-03

Reporting Person: SELSAM ROBERT E (Senior Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-05-03	Common Stock, par value $.01	M	15945	$35.26	Acquired	36937.3045	Direct
2010-05-03	Common Stock, par value $.01	S	15945	$80.6149	Disposed	20992.3045	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-05-03	Employee Stock Option (right to buy)	$35.26	M	15945	Disposed	2011-01-18	Common Stock (15945)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, par value $.01	800	Indirect

Footnotes

F1: Includes 32.7865 shares which the Reporting Person acquired in November 2009 and February 2010 pursuant to the Boston Properties, Inc. Dividend Reinvestment and Stock Purchase Plan.

F2: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $80.54 to $80.78, inclusive. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F3: The options vested in three equal annual installments beginning on January 18, 2002.