BXP, Inc. — Director's Dealing 2011

May 11, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BOSTON PROPERTIES INC (BXP)
CIK: 0001037540
Period of Report: 2011-05-10

Reporting Person: RITCHEY RAYMOND A (Executive Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-10	Common Stock, par value $.01	M	65058	$32.62	Acquired	113645	Direct
2011-05-10	Common Stock, par value $.01	S	65058	$104.455	Disposed	48587	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-10	Employee Stock Option (right to buy)	$32.62	M	65058	Disposed	2012-01-17	Common Stock (65058)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, par value $.01	18317	Indirect

Footnotes

F1: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $104.16 to $104.72, 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.

F2: These shares are held by the Ritchey, LLC, of which the Reporting Person is the sole manager and which is owned by a grantor retained annuity trust of which the Reporting Person is the sole trustee and beneficiary.

F3: The option vested in three equal annual installments beginning on January 17, 2003.