BXP

SEC source: 0001246991-19-000179 · wf-form4_157003405325886.xml · derivative · entry 1

Einiger Carol B. · CIK 0001289668 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,774.25

Underlying: Common Stock, par value $0.01 · 183.17 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F3 · balance_after: Includes 131.90 Phantom Stock Units received pursuant to dividend equivalent rights which were credited to the Reporting Person when and as dividends were paid on the Issuer's Common Stock.

SEC source: 0001246991-19-000178 · wf-form4_157003402523997.xml · derivative · entry 1

KLEIN JOEL · CIK 0001166832 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,218.01

Underlying: Common Stock, par value $0.01 · 356.7 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F3 · balance_after: Includes 41.59 Phantom Stock Units received pursuant to dividend equivalent rights which were credited to the Reporting Person when and as dividends were paid on the Issuer's Common Stock.

SEC source: 0001246991-19-000177 · wf-form4_157003399726355.xml · derivative · entry 1

LUSTIG MATTHEW J · CIK 0001203367 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,859.32

Underlying: Common Stock, par value $0.01 · 231.37 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F3 · balance_after: Includes 47.02 Phantom Stock Units received pursuant to dividend equivalent rights which were credited to the Reporting Person when and as dividends were paid on the Issuer's Common Stock.

SEC source: 0001246991-19-000160 · wf-form4_156209228645373.xml · derivative · entry 1

WALTON WILLIAM H III · CIK 0001058795 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85.11

Underlying: Common Stock, par value $0.01 · 85.11 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

SEC source: 0001246991-19-000166 · wf-form4_156209240397089.xml · derivative · entry 1

Ayotte Kelly · CIK 0001702559 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 398.7

Underlying: Common Stock, par value $0.01 · 181.53 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F3 · balance_after: Includes 1.49 Phantom Stock Units received pursuant to dividend equivalent rights which were credited to the Reporting Person when and as dividends were paid on the Issuer's Common Stock.

SEC source: 0001246991-19-000164 · wf-form4_156209237007299.xml · derivative · entry 1

Einiger Carol B. · CIK 0001289668 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,459.18

Underlying: Common Stock, par value $0.01 · 182.21 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F3 · balance_after: Includes 125.30 Phantom Stock Units received pursuant to dividend equivalent rights which were credited to the Reporting Person when and as dividends were paid on the Issuer's Common Stock.

SEC source: 0001246991-19-000165 · wf-form4_156209238714298.xml · derivative · entry 1

DUNCAN BRUCE W · CIK 0001105577 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 507.26

Underlying: Common Stock, par value $0.01 · 278.81 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F3 · balance_after: Includes 1.57 Phantom Stock Units received pursuant to dividend equivalent rights which were credited to the Reporting Person when and as dividends were paid on the Issuer's Common Stock.

SEC source: 0001246991-19-000163 · wf-form4_156209235003867.xml · derivative · entry 1

KLEIN JOEL · CIK 0001166832 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,819.72

Underlying: Common Stock, par value $0.01 · 470.08 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F3 · balance_after: Includes 36.68 Phantom Stock Units received pursuant to dividend equivalent rights which were credited to the Reporting Person when and as dividends were paid on the Issuer's Common Stock.

SEC source: 0001246991-19-000162 · wf-form4_156209233111059.xml · derivative · entry 1

LUSTIG MATTHEW J · CIK 0001203367 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,580.93

Underlying: Common Stock, par value $0.01 · 255.74 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F3 · balance_after: Includes 43.36 Phantom Stock Units received pursuant to dividend equivalent rights which were credited to the Reporting Person when and as dividends were paid on the Issuer's Common Stock.

SEC source: 0001246991-19-000161 · wf-form4_156209230919570.xml · derivative · entry 1

TWARDOCK DAVID A · CIK 0001229891 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,267.07

Underlying: Common Stock, par value $0.01 · 250.9 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) in a lump sum or in ten annual installments, at the Reporting Person's election, following the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors. In addition, non-employee directors who elect a deferred payout following their retirement may elect to convert not less than 100% of their notional investment from Common Stock to a deemed investment in one or more measurement funds. This election may only be made after the director's service on the Board of Directors ends. A director's account that has been converted to measurement funds will be settled in cash instead of Common Stock.

F3 · balance_after: Includes 164.65 Phantom Stock Units received pursuant to dividend equivalent rights which were credited to the Reporting Person when and as dividends were paid on the Issuer's Common Stock.

SEC source: 0001246991-19-000152 · wf-form4_155991695087565.xml · nonDerivative · entry 1

KOOP BRYAN J · CIK 0001217098 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 584.7704

F1 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $134.32 to $134.50, 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.

SEC source: 0001246991-19-000137 · wf-form4_155923396273382.xml · nonDerivative · entry 1

Hoskins Diane J · CIK 0001522588 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,140

SEC source: 0001246991-19-000150 · wf-form4_155923439793646.xml · derivative · entry 1

WALTON WILLIAM H III · CIK 0001058795 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,140

Underlying: Common Stock, par value $0.01 · 1,140 shares

Expires not disclosed

F1 · security: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F1 · derivative.exercise_price: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F1 · derivative.exercise_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F2 · derivative.exercise_date: The 1,140 LTIP Units will vest on the earlier of (i) May 29, 2020 and (ii) the date of the Issuer's 2020 annual meeting of stockholders.

F1 · derivative.expiration_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

SEC source: 0001246991-19-000145 · wf-form4_155923424263766.xml · derivative · entry 1

Ayotte Kelly · CIK 0001702559 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,187

Underlying: Common Stock, par value $0.01 · 1,140 shares

Expires not disclosed

F1 · security: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F1 · derivative.exercise_price: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F1 · derivative.exercise_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F2 · derivative.exercise_date: The 1,140 LTIP Units will vest on the earlier of (i) May 29, 2020 and (ii) the date of the Issuer's 2020 annual meeting of stockholders.

F1 · derivative.expiration_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

SEC source: 0001246991-19-000149 · wf-form4_155923436748333.xml · derivative · entry 1

LUSTIG MATTHEW J · CIK 0001203367 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,208

Underlying: Common Stock, par value $0.01 · 1,140 shares

Expires not disclosed

F1 · security: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F1 · derivative.exercise_price: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F1 · derivative.exercise_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F2 · derivative.exercise_date: The 1,140 LTIP Units will vest on the earlier of (i) May 29, 2020 and (ii) the date of the Issuer's 2020 annual meeting of stockholders.

F1 · derivative.expiration_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

SEC source: 0001246991-19-000148 · wf-form4_155923433781588.xml · derivative · entry 1

KLEIN JOEL · CIK 0001166832 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,350

Underlying: Common Stock, par value $0.01 · 1,140 shares

Expires not disclosed

F1 · security: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F1 · derivative.exercise_price: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F1 · derivative.exercise_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F2 · derivative.exercise_date: The 1,140 LTIP Units will vest on the earlier of (i) May 29, 2020 and (ii) the date of the Issuer's 2020 annual meeting of stockholders.

F1 · derivative.expiration_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

SEC source: 0001246991-19-000147 · wf-form4_155923430356317.xml · derivative · entry 1

Einiger Carol B. · CIK 0001289668 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,260

Underlying: Common Stock, par value $0.01 · 1,140 shares

Expires not disclosed

F1 · security: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F1 · derivative.exercise_price: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F1 · derivative.exercise_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F2 · derivative.exercise_date: The 1,140 LTIP Units will vest on the earlier of (i) May 29, 2020 and (ii) the date of the Issuer's 2020 annual meeting of stockholders.

F1 · derivative.expiration_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

SEC source: 0001246991-19-000146 · wf-form4_155923427315108.xml · derivative · entry 1

DUNCAN BRUCE W · CIK 0001105577 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,250

Underlying: Common Stock, par value $0.01 · 1,140 shares

Expires not disclosed

F1 · security: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F1 · derivative.exercise_price: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F1 · derivative.exercise_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

F2 · derivative.exercise_date: The 1,140 LTIP Units will vest on the earlier of (i) May 29, 2020 and (ii) the date of the Issuer's 2020 annual meeting of stockholders.

F1 · derivative.expiration_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, issued pursuant to the Issuer's equity based incentive programs. 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 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.

SEC source: 0001246991-19-000138 · wf-form4_155923399259870.xml · nonDerivative · entry 1

TWARDOCK DAVID A · CIK 0001229891 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,974

SEC source: 0001246991-19-000136 · wf-form4_155923393152289.xml · nonDerivative · entry 1

DYKSTRA KAREN E · CIK 0001198848 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,225

SEC source: 0001246991-19-000120 · wf-form4_155907250275749.xml · derivative · entry 4

KOOP BRYAN J · CIK 0001217098 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 4,121 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F1 · kind: 4,121 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F1 · price: 4,121 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F3 · price: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F3 · derivative.exercise_date: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F3 · derivative.expiration_date: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

SEC source: 0001246991-19-000120 · wf-form4_155907250275749.xml · derivative · entry 3

KOOP BRYAN J · CIK 0001217098 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,121

Underlying: Common Stock, par value $0.01 · 4,121 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F1 · kind: 4,121 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F1 · price: 4,121 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F3 · price: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F3 · derivative.exercise_date: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F3 · derivative.expiration_date: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

SEC source: 0001246991-19-000120 · wf-form4_155907250275749.xml · derivative · entry 2

KOOP BRYAN J · CIK 0001217098 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,284

Underlying: Common Stock, par value $0.01 · 4,121 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · security: Represents units of limited partnership interest in Boston Properties Limited Partnership, of which the Issuer is the general partner, ("BPLP") issued as long term incentive compensation ("LTIP Units") pursuant to the Issuer's equity based incentive programs. 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 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 Common Stock. LTIP Units have no expiration date.

F2 · derivative.exercise_price: Represents units of limited partnership interest in Boston Properties Limited Partnership, of which the Issuer is the general partner, ("BPLP") issued as long term incentive compensation ("LTIP Units") pursuant to the Issuer's equity based incentive programs. 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 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 Common Stock. LTIP Units have no expiration date.

F1 · kind: 4,121 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F3 · derivative.exercise_date: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F3 · derivative.expiration_date: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

SEC source: 0001246991-19-000120 · wf-form4_155907250275749.xml · nonDerivative · entry 1

KOOP BRYAN J · CIK 0001217098 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,705.7704

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 4,121 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F1 · price: 4,121 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

SEC source: 0001246991-19-000108 · wf-form4_155812211467136.xml · nonDerivative · entry 1

KOOP BRYAN J · CIK 0001217098 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 584.7704

F1 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $134.76 to $134.92, 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.

SEC source: 0001246991-19-000106 · wf-form4_155803560715442.xml · derivative · entry 3

KOOP BRYAN J · CIK 0001217098 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 5,616 shares

Expires 2021-01-28

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: In (1) January 2014, the Issuer paid a special dividend of $2.25 per share of Common Stock to all stockholders of record as of the close of business on December 31, 2013, (2) January 2015, the Issuer paid a special dividend of $4.50 per share of Common Stock to all stockholders of record as of the close of business on December 31, 2014 and (3) January 2016, the Issuer paid a special dividend of $1.25 per share of Common Stock to all stockholders of record as of the close of business on December 31, 2015. In connection with these special dividends, the Issuer's Board of Directors adjusted all options that were awarded, but not exercised, prior to the ex-dividend date for each special dividend to account for the effect of each special dividend. The number of shares subject to each such option was increased and the exercise price correspondingly decreased such that each option had the same fair value to the holder before and after giving effect to the payment of each special dividend.

F2 · derivative.exercise_price: Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Koop's options increased by (1) 116 from 5,261 to 5,377 in January 2014, (2) 185 from 5,377 to 5,562 in January 2015 and (3) 54 from 5,562 to 5,616 in January 2016 and the per share exercise price was correspondingly decreased.

F4 · derivative.exercise_date: The option vested in four equal annual installments beginning on January 15, 2012.

SEC source: 0001246991-19-000106 · wf-form4_155803560715442.xml · nonDerivative · entry 2

KOOP BRYAN J · CIK 0001217098 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,558.7704

F3 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $133.9439 to $133.9730, 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.

SEC source: 0001246991-19-000106 · wf-form4_155803560715442.xml · nonDerivative · entry 1

KOOP BRYAN J · CIK 0001217098 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,174.7704

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: In (1) January 2014, the Issuer paid a special dividend of $2.25 per share of Common Stock to all stockholders of record as of the close of business on December 31, 2013, (2) January 2015, the Issuer paid a special dividend of $4.50 per share of Common Stock to all stockholders of record as of the close of business on December 31, 2014 and (3) January 2016, the Issuer paid a special dividend of $1.25 per share of Common Stock to all stockholders of record as of the close of business on December 31, 2015. In connection with these special dividends, the Issuer's Board of Directors adjusted all options that were awarded, but not exercised, prior to the ex-dividend date for each special dividend to account for the effect of each special dividend. The number of shares subject to each such option was increased and the exercise price correspondingly decreased such that each option had the same fair value to the holder before and after giving effect to the payment of each special dividend.

F2 · price: Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Koop's options increased by (1) 116 from 5,261 to 5,377 in January 2014, (2) 185 from 5,377 to 5,562 in January 2015 and (3) 54 from 5,562 to 5,616 in January 2016 and the per share exercise price was correspondingly decreased.

SEC source: 0001246991-19-000101 · wf-form4_155423402786951.xml · derivative · entry 1

KLEIN JOEL · CIK 0001166832 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,312.96

Underlying: Common Stock, par value $0.01 · 232.48 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) upon the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) upon the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors.

F3 · balance_after: Includes 36.73 Phantom Stock Units acquired as quarterly dividend equivalent rights on January 30, 2019. The rights were granted as a component of the Phantom Stock Units that were awarded under the Second Amendment and Restatement of the Boston Properties, Inc. 1997 Stock Option and Incentive Plan or, following May 15, 2012, under the 2012 Plan.

SEC source: 0001246991-19-000104 · wf-form4_155423414711354.xml · derivative · entry 1

Ayotte Kelly · CIK 0001702559 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 215.68

Underlying: Common Stock, par value $0.01 · 215.68 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) upon the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) upon the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors.

SEC source: 0001246991-19-000103 · wf-form4_155423410732467.xml · derivative · entry 1

DUNCAN BRUCE W · CIK 0001105577 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 226.88

Underlying: Common Stock, par value $0.01 · 226.88 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) upon the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) upon the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors.

SEC source: 0001246991-19-000102 · wf-form4_155423406785076.xml · derivative · entry 1

Einiger Carol B. · CIK 0001289668 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,151.67

Underlying: Common Stock, par value $0.01 · 221.28 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) upon the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) upon the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors.

F3 · balance_after: Includes 129.62 Phantom Stock Units acquired as quarterly dividend equivalent rights on January 30, 2019. The rights were granted as a component of the Phantom Stock Units that were awarded under the Second Amendment and Restatement of the Boston Properties, Inc. 1997 Stock Option and Incentive Plan or, following May 15, 2012, under the 2012 Plan.

SEC source: 0001246991-19-000100 · wf-form4_155423398774196.xml · derivative · entry 1

LUSTIG MATTHEW J · CIK 0001203367 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,281.83

Underlying: Common Stock, par value $0.01 · 223.77 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) upon the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) upon the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors.

F3 · balance_after: Includes 43.98 Phantom Stock Units acquired as quarterly dividend equivalent rights on January 30, 2019. The rights were granted as a component of the Phantom Stock Units that were awarded under the Second Amendment and Restatement of the Boston Properties, Inc. 1997 Stock Option and Incentive Plan or, following May 15, 2012, under the 2012 Plan.

SEC source: 0001246991-19-000099 · wf-form4_155423394656823.xml · derivative · entry 1

TURCHIN MARTIN · CIK 0001217112 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,554.55

Underlying: Common Stock, par value $0.01 · 170.86 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) upon the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) upon the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors.

F3 · balance_after: Includes 1,275.88 Phantom Stock Units acquired as quarterly dividend equivalent rights between January 1, 2017 and January 30, 2019. The rights were granted as a component of the Phantom Stock Units that were awarded under the Second Amendment and Restatement of the Boston Properties, Inc. 1997 Stock Option and Incentive Plan or, following May 15, 2012, under the 2012 Plan.

SEC source: 0001246991-19-000098 · wf-form4_155423390767290.xml · derivative · entry 1

TWARDOCK DAVID A · CIK 0001229891 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,851.52

Underlying: Common Stock, par value $0.01 · 243.69 shares

Expires not disclosed

F1 · derivative.exercise_price: The Phantom Stock Units convert to Common Stock on a 1-for-1 basis.

F2 · derivative.exercise_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) upon the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors.

F2 · derivative.expiration_date: The Phantom Stock Units are awarded under the Boston Properties, Inc. 2012 Stock Option and Incentive Plan (the "2012 Plan") to non-employee directors who elected to receive Phantom Stock Units in lieu of director cash compensation fees. The Phantom Stock Units are to be settled in shares of Common Stock (except that fractional units, if any, will be settled in cash) upon the Reporting Person's retirement from the Boston Properties, Inc. Board of Directors.

F3 · balance_after: Includes 170.67 Phantom Stock Units acquired as quarterly dividend equivalent rights on January 30, 2019. The rights were granted as a component of the Phantom Stock Units that were awarded under the Second Amendment and Restatement of the Boston Properties, Inc. 1997 Stock Option and Incentive Plan or, following May 15, 2012, under the 2012 Plan.

SEC source: 0001246991-19-000090 · wf-form4_155078366523505.xml · nonDerivative · entry 2

BURT FRANK D · CIK 0001217093 · SVP, CLO and Secretary

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Burt Family Trust - 1993

Disclosed balance after: 0

SEC source: 0001246991-19-000090 · wf-form4_155078366523505.xml · nonDerivative · entry 1

BURT FRANK D · CIK 0001217093 · SVP, CLO and Secretary

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Burt Family Trust - 1993

Disclosed balance after: 100

SEC source: 0001246991-19-000088 · wf-form4_155070060204216.xml · derivative · entry 7

BURT FRANK D · CIK 0001217093 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 2,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the 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 redemption for one share of Common Stock. Common OP Units have no expiration date.

F6 · derivative.exercise_price: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the 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 redemption for one share of Common Stock. Common OP Units have no expiration date.

F1 · kind: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F1 · price: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F6 · price: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the 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 redemption for one share of Common Stock. Common OP Units have no expiration date.

F6 · derivative.exercise_date: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the 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 redemption for one share of Common Stock. Common OP Units have no expiration date.

F6 · derivative.expiration_date: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the 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 redemption for one share of Common Stock. Common OP Units have no expiration date.

SEC source: 0001246991-19-000088 · wf-form4_155070060204216.xml · derivative · entry 6

BURT FRANK D · CIK 0001217093 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,000

Underlying: Common Stock, par value $0.01 · 2,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the 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 redemption for one share of Common Stock. Common OP Units have no expiration date.

F6 · derivative.exercise_price: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the 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 redemption for one share of Common Stock. Common OP Units have no expiration date.

F1 · kind: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F1 · price: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F6 · price: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the 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 redemption for one share of Common Stock. Common OP Units have no expiration date.

F6 · derivative.exercise_date: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the 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 redemption for one share of Common Stock. Common OP Units have no expiration date.

F6 · derivative.expiration_date: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the 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 redemption for one share of Common Stock. Common OP Units have no expiration date.

SEC source: 0001246991-19-000088 · wf-form4_155070060204216.xml · derivative · entry 5

BURT FRANK D · CIK 0001217093 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,310

Underlying: Common Stock, par value $0.01 · 2,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · security: Represents units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, issued as long term incentive compensation pursuant to the Issuer's equity based incentive programs. 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 the holder, into a common unit of limited partnership interest ("Common OP Unit") in BPLP. 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 Common Stock. LTIP Units have no expiration date.

F5 · derivative.exercise_price: Represents units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, issued as long term incentive compensation pursuant to the Issuer's equity based incentive programs. 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 the holder, into a common unit of limited partnership interest ("Common OP Unit") in BPLP. 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 Common Stock. LTIP Units have no expiration date.

F1 · kind: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F5 · derivative.exercise_date: Represents units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, issued as long term incentive compensation pursuant to the Issuer's equity based incentive programs. 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 the holder, into a common unit of limited partnership interest ("Common OP Unit") in BPLP. 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 Common Stock. LTIP Units have no expiration date.

F5 · derivative.expiration_date: Represents units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, issued as long term incentive compensation pursuant to the Issuer's equity based incentive programs. 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 the holder, into a common unit of limited partnership interest ("Common OP Unit") in BPLP. 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 Common Stock. LTIP Units have no expiration date.

SEC source: 0001246991-19-000088 · wf-form4_155070060204216.xml · nonDerivative · entry 3

BURT FRANK D · CIK 0001217093 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Burt Family Trust - 1993

Disclosed balance after: 2,000

F1 · kind: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

SEC source: 0001246991-19-000088 · wf-form4_155070060204216.xml · nonDerivative · entry 2

BURT FRANK D · CIK 0001217093 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

SEC source: 0001246991-19-000088 · wf-form4_155070060204216.xml · nonDerivative · entry 1

BURT FRANK D · CIK 0001217093 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F1 · price: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

SEC source: 0001246991-19-000080 · wf-form4_155070030456289.xml · derivative · entry 1

THOMAS OWEN D · CIK 0001339081 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 212,247

Underlying: Common Stock, par value $0.01 · 30,964 shares

Expires not disclosed

F1 · security: 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 2016 Multi-Year Long-Term Incentive Program (the "Program").

F2 · derivative.exercise_price: 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 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 Common Stock. LTIP Units have no expiration date.

F2 · derivative.exercise_date: 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 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 Common Stock. LTIP Units have no expiration date.

F2 · derivative.expiration_date: 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 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 Common Stock. LTIP Units have no expiration date.

F3 · derivative.expiration_date: The 30,964 LTIP Units earned pursuant to the Program vested 50% upon being earned and 50% will vest on February 9, 2020.

SEC source: 0001246991-19-000081 · wf-form4_155070034193918.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 209,974

Underlying: Common Stock, par value $0.01 · 16,484 shares

Expires not disclosed

F1 · security: 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 2016 Multi-Year Long-Term Incentive Program (the "Program").

F2 · derivative.exercise_price: 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 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 Common Stock. LTIP Units have no expiration date.

F2 · derivative.exercise_date: 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 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 Common Stock. LTIP Units have no expiration date.

F3 · derivative.exercise_date: The 16,484 LTIP Units earned pursuant to the Program vesting 50% upon being earned and 50% will vest on February 9, 2020.

F2 · derivative.expiration_date: 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 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 Common Stock. LTIP Units have no expiration date.

SEC source: 0001246991-19-000088 · wf-form4_155070060204216.xml · derivative · entry 4

BURT FRANK D · CIK 0001217093 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,310

Underlying: Common Stock, par value $0.01 · 464 shares

Expires not disclosed

F2 · security: 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 2016 Multi-Year Long-Term Incentive Program (the "Program").

F3 · derivative.exercise_price: 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 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 Common Stock. LTIP Units have no expiration date.

F3 · derivative.exercise_date: 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 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 Common Stock. LTIP Units have no expiration date.

F4 · derivative.exercise_date: The 464 LTIP Units earned pursuant to the Program vested 50% upon being earned and 50% will vest on February 9, 2020.

F3 · derivative.expiration_date: 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 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 Common Stock. LTIP Units have no expiration date.

SEC source: 0001246991-19-000087 · wf-form4_155070056494929.xml · derivative · entry 1

JOHNSTON PETER D · CIK 0001337218 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,785

Underlying: Common Stock, par value $0.01 · 3,414 shares

Expires not disclosed

F1 · security: 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 2016 Multi-Year Long-Term Incentive Program (the "Program").

F2 · derivative.exercise_price: 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 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 Common Stock. LTIP Units have no expiration date.

F2 · derivative.exercise_date: 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 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 Common Stock. LTIP Units have no expiration date.

F3 · derivative.exercise_date: The 3,414 LTIP Units earned pursuant to the Program vested 50% upon being earned and 50% will vest on February 9, 2020.

F2 · derivative.expiration_date: 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 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 Common Stock. LTIP Units have no expiration date.

SEC source: 0001246991-19-000086 · wf-form4_155070052795252.xml · derivative · entry 1

KOOP BRYAN J · CIK 0001217098 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,405

Underlying: Common Stock, par value $0.01 · 4,145 shares

Expires not disclosed

F1 · security: 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 2016 Multi-Year Long-Term Incentive Program (the "Program").

F2 · derivative.exercise_price: 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 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 Common Stock. LTIP Units have no expiration date.

F2 · derivative.exercise_date: 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 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 Common Stock. LTIP Units have no expiration date.

F3 · derivative.exercise_date: The 4,145 LTIP Units earned pursuant to the Program vested 50% upon being earned and 50% will vest on February 9, 2020.

F2 · derivative.expiration_date: 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 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 Common Stock. LTIP Units have no expiration date.

SEC source: 0001246991-19-000085 · wf-form4_155070049093361.xml · derivative · entry 1

LABELLE MICHAEL E · CIK 0001419045 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 92,608

Underlying: Common Stock, par value $0.01 · 7,357 shares

Expires not disclosed

F1 · security: 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 2016 Multi-Year Long-Term Incentive Program (the "Program").

F2 · derivative.exercise_price: 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 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 Common Stock. LTIP Units have no expiration date.

F2 · derivative.exercise_date: 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 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 Common Stock. LTIP Units have no expiration date.

F3 · derivative.exercise_date: The 7,357 LTIP Units earned pursuant to the Program vested 50% upon being earned and 50% will vest on February 9, 2020.

F2 · derivative.expiration_date: 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 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 Common Stock. LTIP Units have no expiration date.

SEC source: 0001246991-19-000084 · wf-form4_155070045394920.xml · derivative · entry 1

LINDE DOUGLAS T · CIK 0001217102 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 208,550

Underlying: Common Stock, par value $0.01 · 21,737 shares

Expires not disclosed

F1 · security: 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 2016 Multi-Year Long-Term Incentive Program (the "Program").

F2 · derivative.exercise_price: 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 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 Common Stock. LTIP Units have no expiration date.

F2 · derivative.exercise_date: 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 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 Common Stock. LTIP Units have no expiration date.

F3 · derivative.exercise_date: The 21,737 LTIP Units earned pursuant to the Program vested 50% upon being earned and 50% will vest on February 9, 2020

F2 · derivative.expiration_date: 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 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 Common Stock. LTIP Units have no expiration date.