BXP

SEC source: 0001246991-20-000049 · wf-form4_158076430456542.xml · derivative · entry 1

PESTER ROBERT E · CIK 0001217108 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,573

Underlying: Common Stock, par value $0.01 · 4,168 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 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 · derivative.exercise_price: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, 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 · derivative.exercise_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, 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_date: The 4,168 LTIP Units were fully vested upon issuance as a result of the Reporting Person's attainment of age 62 with 20 years of service.

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 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.

SEC source: 0001246991-20-000048 · wf-form4_158076428310900.xml · derivative · entry 1

LINDE DOUGLAS T · CIK 0001217102 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 228,274

Underlying: Common Stock, par value $0.01 · 19,724 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 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 · derivative.exercise_price: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, 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 · derivative.exercise_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, 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_date: The 19,724 LTIP Units vest in four equal annual installments beginning on January 15, 2021.

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 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.

SEC source: 0001246991-20-000041 · wf-form4_158076412362908.xml · derivative · entry 1

JOHNSTON PETER D · CIK 0001337218 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,255

Underlying: Common Stock, par value $0.01 · 3,470 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 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 · derivative.exercise_price: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, 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 · derivative.exercise_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, 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_date: The 3,470 LTIP Units vest in four equal annual installments beginning on January 15, 2021.

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 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.

SEC source: 0001246991-20-000046 · wf-form4_158076423533856.xml · derivative · entry 1

LABELLE MICHAEL E · CIK 0001419045 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,392

Underlying: Common Stock, par value $0.01 · 6,784 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 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 · derivative.exercise_price: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, 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 · derivative.exercise_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, 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_date: The 6,784 LTIP Units vest in four equal annual installments beginning on January 15, 2021.

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 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.

SEC source: 0001246991-20-000044 · wf-form4_158076419370209.xml · derivative · entry 1

KOOP BRYAN J · CIK 0001217098 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,417

Underlying: Common Stock, par value $0.01 · 4,778 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 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 · derivative.exercise_price: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, 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 · derivative.exercise_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, 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_date: The 4,778 LTIP Units vest in four equal annual installments beginning on January 15, 2021.

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 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.

SEC source: 0001246991-20-000039 · wf-form4_158076407687895.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,123

Underlying: Common Stock, par value $0.01 · 1,813 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 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 · derivative.exercise_price: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, 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 · derivative.exercise_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, 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_date: The 1,813 LTIP Units vest in four equal annual installments beginning on January 15, 2021.

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 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.

SEC source: 0001246991-20-000017 · wf-form4_157920744171404.xml · nonDerivative · entry 1

LABELLE MICHAEL E · CIK 0001419045 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,142

F1 · shares: Shares withheld to satisfy the Reporting Person's tax obligation in connection with the vesting of restricted common stock.

SEC source: 0001246991-20-000018 · wf-form4_157920746311234.xml · nonDerivative · entry 1

LINDE DOUGLAS T · CIK 0001217102 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 181,491.7471

F1 · shares: Shares withheld to satisfy the Reporting Person's tax obligation in connection with the vesting of restricted common stock.

SEC source: 0001246991-20-000014 · wf-form4_157807996564466.xml · derivative · entry 1

WALTON WILLIAM H III · CIK 0001058795 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 461.8

Underlying: Common Stock, par value $0.01 · 181.34 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 1.93 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: 0001246991-20-000009 · wf-form4_157807984630191.xml · derivative · entry 1

DUNCAN BRUCE W · CIK 0001105577 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,058.88

Underlying: Common Stock, par value $0.01 · 262.95 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 5.47 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: 0001246991-20-000013 · wf-form4_157807994219631.xml · derivative · entry 1

TWARDOCK DAVID A · CIK 0001229891 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,097.85

Underlying: Common Stock, par value $0.01 · 235.75 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 170.97 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: 0001246991-20-000012 · wf-form4_157807991748422.xml · derivative · entry 1

LUSTIG MATTHEW J · CIK 0001203367 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,124.43

Underlying: Common Stock, par value $0.01 · 217.61 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 47.50 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: 0001246991-20-000011 · wf-form4_157807989494883.xml · derivative · entry 1

KLEIN JOEL · CIK 0001166832 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,596.55

Underlying: Common Stock, par value $0.01 · 335.49 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 43.05 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: 0001246991-20-000010 · wf-form4_157807987151250.xml · derivative · entry 1

Einiger Carol B. · CIK 0001289668 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,076.53

Underlying: Common Stock, par value $0.01 · 172.28 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) 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 130.00 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: 0001246991-20-000008 · wf-form4_157807981768476.xml · derivative · entry 1

Ayotte Kelly · CIK 0001702559 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 798.59

Underlying: Common Stock, par value $0.01 · 190.41 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 4.18 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: 0001246991-19-000197 · wf-form4_157652833496373.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,889

F1 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $137.00 to $137.39, 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: 0001246991-19-000195 · wf-form4_157618551099907.xml · nonDerivative · entry 4

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,889

F4 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $139.00 to $139.67, 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: 0001246991-19-000195 · wf-form4_157618551099907.xml · nonDerivative · entry 3

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,089

F3 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $137.75 to $138.65, 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: 0001246991-19-000195 · wf-form4_157618551099907.xml · nonDerivative · entry 2

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,062

F2 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $136.74 to $137.715, 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: 0001246991-19-000195 · wf-form4_157618551099907.xml · derivative · entry 7

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,305

Underlying: Common Stock, par value $0.01 · 36,105 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 · 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: 36,105 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: 36,105 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 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.

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 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.

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 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: 0001246991-19-000195 · wf-form4_157618551099907.xml · derivative · entry 6

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,410

Underlying: Common Stock, par value $0.01 · 36,105 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 · 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: 36,105 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: 36,105 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 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.

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 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.

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 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: 0001246991-19-000195 · wf-form4_157618551099907.xml · derivative · entry 5

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 173,869

Underlying: Common Stock, par value $0.01 · 36,105 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 LTIP Units in BPLP, of which the Issuer is the 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 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.

F5 · derivative.exercise_price: Represents LTIP Units in BPLP, of which the Issuer is the 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 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: 36,105 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 LTIP Units in BPLP, of which the Issuer is the 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 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.

F5 · derivative.expiration_date: Represents LTIP Units in BPLP, of which the Issuer is the 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 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: 0001246991-19-000195 · wf-form4_157618551099907.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,105

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: 36,105 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: 36,105 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: 0001246991-19-000191 · wf-form4_157566459610908.xml · derivative · entry 10

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 39,943 shares

Expires 2023-02-01

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.

F5 · derivative.exercise_price: Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Ritchey's options increased by (1) 827 from 37,416 to 38,243 in January 2014, (2) 1,315 from 38,243 to 39,558 in January 2015 and (3) 385 from 39,558 to 39,943 in January 2016 and the per share exercise price was correspondingly decreased.

F9 · derivative.exercise_date: The option vested in four equal annual installments beginning on January 15, 2014.

SEC source: 0001246991-19-000191 · wf-form4_157566459610908.xml · derivative · entry 9

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 1,052 shares

Expires 2022-02-03

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.

F3 · derivative.exercise_price: Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Ritchey's options increased by (1) 665 from 30,088 to 30,753 in January 2014, (2) 1,058 from 30,753 to 31,811 in January 2015 and (3) 309 from 31,811 to 32,120 in January 2016 and the per share exercise price was correspondingly decreased.

F8 · derivative.exercise_date: The option vested in four equal annual installments beginning on January 15, 2013.

SEC source: 0001246991-19-000191 · wf-form4_157566459610908.xml · nonDerivative · entry 6

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F6 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $138 to $138.63, 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: 0001246991-19-000191 · wf-form4_157566459610908.xml · nonDerivative · entry 5

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,995

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.

F5 · price: Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Ritchey's options increased by (1) 827 from 37,416 to 38,243 in January 2014, (2) 1,315 from 38,243 to 39,558 in January 2015 and (3) 385 from 39,558 to 39,943 in January 2016 and the per share exercise price was correspondingly decreased.

SEC source: 0001246991-19-000191 · wf-form4_157566459610908.xml · nonDerivative · entry 4

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,052

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.

F3 · price: Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Ritchey's options increased by (1) 665 from 30,088 to 30,753 in January 2014, (2) 1,058 from 30,753 to 31,811 in January 2015 and (3) 309 from 31,811 to 32,120 in January 2016 and the per share exercise price was correspondingly decreased.

SEC source: 0001246991-19-000191 · wf-form4_157566459610908.xml · derivative · entry 8

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,052

Underlying: Common Stock, par value $0.01 · 31,068 shares

Expires 2022-02-03

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.

F3 · derivative.exercise_price: Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Ritchey's options increased by (1) 665 from 30,088 to 30,753 in January 2014, (2) 1,058 from 30,753 to 31,811 in January 2015 and (3) 309 from 31,811 to 32,120 in January 2016 and the per share exercise price was correspondingly decreased.

F8 · derivative.exercise_date: The option vested in four equal annual installments beginning on January 15, 2013.

SEC source: 0001246991-19-000191 · wf-form4_157566459610908.xml · derivative · entry 7

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 24,739 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. Ritchey's options increased by (1) 512 from 23,175 to 23,687 in January 2014, (2) 814 from 23,687 to 24,501 in January 2015 and (3) 238 from 24,501 to 24,739 in January 2016 and the per share exercise price was correspondingly decreased.

F7 · derivative.exercise_date: The option vested in four equal annual installments beginning on January 15, 2012.

SEC source: 0001246991-19-000191 · wf-form4_157566459610908.xml · nonDerivative · entry 3

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F4 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $138 to $138.75, 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: 0001246991-19-000191 · wf-form4_157566459610908.xml · nonDerivative · entry 2

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,807

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.

F3 · price: Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Ritchey's options increased by (1) 665 from 30,088 to 30,753 in January 2014, (2) 1,058 from 30,753 to 31,811 in January 2015 and (3) 309 from 31,811 to 32,120 in January 2016 and the per share exercise price was correspondingly decreased.

SEC source: 0001246991-19-000191 · wf-form4_157566459610908.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,739

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. Ritchey's options increased by (1) 512 from 23,175 to 23,687 in January 2014, (2) 814 from 23,687 to 24,501 in January 2015 and (3) 238 from 24,501 to 24,739 in January 2016 and the per share exercise price was correspondingly decreased.

SEC source: 0001246991-19-000189 · wf-form4_157469761744399.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 $137.885 to $138.255, 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: 0001246991-19-000187 · wf-form4_157428292089853.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 · 9,645 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: 9,645 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: 9,645 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: 0001246991-19-000187 · wf-form4_157428292089853.xml · derivative · entry 3

KOOP BRYAN J · CIK 0001217098 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,645

Underlying: Common Stock, par value $0.01 · 9,645 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: 9,645 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: 9,645 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: 0001246991-19-000187 · wf-form4_157428292089853.xml · derivative · entry 2

KOOP BRYAN J · CIK 0001217098 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,639

Underlying: Common Stock, par value $0.01 · 9,645 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 BPLP, of which the Issuer is the 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 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 BPLP, of which the Issuer is the 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 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: 9,645 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.

F2 · derivative.exercise_date: Represents units of limited partnership interest in BPLP, of which the Issuer is the 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 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: Represents units of limited partnership interest in BPLP, of which the Issuer is the 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 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: 0001246991-19-000187 · wf-form4_157428292089853.xml · nonDerivative · entry 1

KOOP BRYAN J · CIK 0001217098 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,229.7704

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: 9,645 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: 9,645 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: 0001246991-19-000183 · wf-form4_157365627945152.xml · derivative · entry 8

JOHNSTON PETER D · CIK 0001337218 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 9,448 shares

Expires 2023-02-01

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 aspecial 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 ofCommon 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.

F5 · derivative.exercise_price: Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Johnston's options increased by (1) 195 from 8,851 to 9,046 in January 2014, (2) 311 from 9,046 to 9,357 in January2015 and (3) 91 from 9,357 to 9,448 in January 2016 and the per share exercise price was correspondingly decreased.

F10 · derivative.exercise_date: The option vested in four equal annual installments beginning on January 15, 2014.

SEC source: 0001246991-19-000183 · wf-form4_157365627945152.xml · derivative · entry 7

JOHNSTON PETER D · CIK 0001337218 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 7,625 shares

Expires 2022-02-03

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 aspecial 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 ofCommon 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.

F4 · derivative.exercise_price: Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Johnston's options increased by (1) 157 from 7,144 to 7,301 in January 2014, (2) 251 from 7,301 to 7,552 in January2015 and (3) 73 from 7,552 to 7,625 in January 2016 and the per share exercise price was correspondingly decreased.

F9 · derivative.exercise_date: The option vested in four equal annual installments beginning on January 15, 2013.

SEC source: 0001246991-19-000183 · wf-form4_157365627945152.xml · derivative · entry 6

JOHNSTON PETER D · CIK 0001337218 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 1,509 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 aspecial 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 ofCommon 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. Johnston's options increased by (1) 49 from 1,446 to 1,495 in January 2015 and (2) 14 from 1,495 to 1,509 in January 2016 and the per share exercise price was correspondingly decreased.

F8 · derivative.exercise_date: The option vested in four equal annual installments beginning on January 15, 2012.

SEC source: 0001246991-19-000183 · wf-form4_157365627945152.xml · nonDerivative · entry 5

JOHNSTON PETER D · CIK 0001337218 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,105.8773

F7 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $138.15 to $138.35, 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: 0001246991-19-000183 · wf-form4_157365627945152.xml · nonDerivative · entry 4

JOHNSTON PETER D · CIK 0001337218 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,087.8773

F6 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $137.05 to $138.04, 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: 0001246991-19-000183 · wf-form4_157365627945152.xml · nonDerivative · entry 3

JOHNSTON PETER D · CIK 0001337218 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,687.8773

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 aspecial 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 ofCommon 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.

F5 · price: Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Johnston's options increased by (1) 195 from 8,851 to 9,046 in January 2014, (2) 311 from 9,046 to 9,357 in January2015 and (3) 91 from 9,357 to 9,448 in January 2016 and the per share exercise price was correspondingly decreased.

SEC source: 0001246991-19-000183 · wf-form4_157365627945152.xml · nonDerivative · entry 2

JOHNSTON PETER D · CIK 0001337218 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,239.8773

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 aspecial 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 ofCommon 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.

F4 · price: Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Johnston's options increased by (1) 157 from 7,144 to 7,301 in January 2014, (2) 251 from 7,301 to 7,552 in January2015 and (3) 73 from 7,552 to 7,625 in January 2016 and the per share exercise price was correspondingly decreased.

SEC source: 0001246991-19-000183 · wf-form4_157365627945152.xml · nonDerivative · entry 1

JOHNSTON PETER D · CIK 0001337218 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,614.8773

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 aspecial 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 ofCommon 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. Johnston's options increased by (1) 49 from 1,446 to 1,495 in January 2015 and (2) 14 from 1,495 to 1,509 in January 2016 and the per share exercise price was correspondingly decreased.

F3 · balance_after: Includes an aggregate of 235.65047 shares which the Reporting Person acquired in July 2017, January 2018, July 2018, January 2019 and July 2019 pursuant to the Boston Properties, Inc. 1999 Non-Qualified Employee Stock Purchase Plan.

SEC source: 0001246991-19-000175 · wf-form4_157003394598417.xml · derivative · entry 1

WALTON WILLIAM H III · CIK 0001058795 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 278.53

Underlying: Common Stock, par value $0.01 · 192.81 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 (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 .61 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: 0001246991-19-000176 · wf-form4_157003397073961.xml · derivative · entry 1

TWARDOCK DAVID A · CIK 0001229891 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,691.13

Underlying: Common Stock, par value $0.01 · 250.66 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 173.40 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: 0001246991-19-000181 · wf-form4_157003410735612.xml · derivative · entry 1

Ayotte Kelly · CIK 0001702559 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 604

Underlying: Common Stock, par value $0.01 · 202.45 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 2.85 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: 0001246991-19-000180 · wf-form4_157003408010762.xml · derivative · entry 1

DUNCAN BRUCE W · CIK 0001105577 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 790.46

Underlying: Common Stock, par value $0.01 · 279.58 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 3.62 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.