BURT FRANK D

SEC source: 0001246991-22-000094 · wf-form4_164391344529145.xml · derivative · entry 1

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,095

Underlying: Common OP Units · 790 shares

Expires not disclosed

F1 · security: Represents LTIP Units granted pursuant to the Boston Properties, Inc.'s ("BXP"), the Issuer's general partner, 2022 Multi-Year Long-Term Incentive Program (the "2022 Program"). 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 Issuer or the holder, into a common unit of limited partnership interest in the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BXP except that BXP may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BXP. LTIP Units have no expiration date.

F1 · derivative.exercise_price: Represents LTIP Units granted pursuant to the Boston Properties, Inc.'s ("BXP"), the Issuer's general partner, 2022 Multi-Year Long-Term Incentive Program (the "2022 Program"). 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 Issuer or the holder, into a common unit of limited partnership interest in the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BXP except that BXP may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BXP. LTIP Units have no expiration date.

F1 · derivative.exercise_date: Represents LTIP Units granted pursuant to the Boston Properties, Inc.'s ("BXP"), the Issuer's general partner, 2022 Multi-Year Long-Term Incentive Program (the "2022 Program"). 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 Issuer or the holder, into a common unit of limited partnership interest in the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BXP except that BXP may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BXP. LTIP Units have no expiration date.

F2 · derivative.exercise_date: The 790 LTIP Units may be earned based on the achievement of certain performance criteria based on BXP's total shareholder return over a three-year performance period ending on January 31, 2025. Any LTIP Units earned pursuant to the 2022 Program will vest in full on January 31, 2025, with each earned LTIP Unit and Common OP Unit acquired upon conversion of such LTIP Unit subject to an additional post-vesting holding period pursuant to which such LTIP Unit and Common OP Unit generally may not be transferred, and the redemption right associated with the Common OP Unit may not be exercised, until one year after the vesting date.

F1 · derivative.expiration_date: Represents LTIP Units granted pursuant to the Boston Properties, Inc.'s ("BXP"), the Issuer's general partner, 2022 Multi-Year Long-Term Incentive Program (the "2022 Program"). 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 Issuer or the holder, into a common unit of limited partnership interest in the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BXP except that BXP may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BXP. LTIP Units have no expiration date.

SEC source: 0001246991-22-000093 · wf-form4_164391334578225.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,095

Underlying: Common Stock, par value $0.01 · 790 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, granted pursuant to the Issuer's 2022 Multi-Year Long-Term Incentive Program (the "2022 Program"). 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 BPLP or 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, granted pursuant to the Issuer's 2022 Multi-Year Long-Term Incentive Program (the "2022 Program"). 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 BPLP or 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, granted pursuant to the Issuer's 2022 Multi-Year Long-Term Incentive Program (the "2022 Program"). 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 BPLP or 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 790 LTIP Units may be earned based on the achievement of certain performance criteria based on the Issuer's total shareholder return over a three-year performance period ending on January 31, 2025. Any LTIP Units earned pursuant to the 2022 Program will vest in full on January 31, 2025, with each earned LTIP Unit and Common OP Unit acquired upon conversion of such LTIP Unit subject to an additional post-vesting holding period pursuant to which such LTIP Unit and Common OP Unit generally may not be transferred, and the redemption right associated with the Common OP Unit may not be exercised, until one year after the vesting date.

F1 · derivative.expiration_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, granted pursuant to the Issuer's 2022 Multi-Year Long-Term Incentive Program (the "2022 Program"). 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 BPLP or 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: 0001246991-22-000045 · wf-form4_164374885023395.xml · derivative · entry 1

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,305

Underlying: Common OP Units · 2,294 shares

Expires not disclosed

F1 · security: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 Issuer or the holder, into a common unit of limited partnership interest in the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

F1 · derivative.exercise_price: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 Issuer or the holder, into a common unit of limited partnership interest in the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

F1 · derivative.exercise_date: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 Issuer or the holder, into a common unit of limited partnership interest in the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

F2 · derivative.exercise_date: The 2,294 LTIP Units vest in four equal annual installments beginning on January 15, 2023.

F1 · derivative.expiration_date: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 Issuer or the holder, into a common unit of limited partnership interest in the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

SEC source: 0001246991-22-000044 · wf-form4_164374883038339.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,305

Underlying: Common Stock, par value $0.01 · 2,294 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 BPLP or 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 BPLP or 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 BPLP or 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 2,294 LTIP Units vest in four equal annual installments beginning on January 15, 2023.

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 BPLP or 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: 0001246991-21-000252 · wf-form4_163701319246936.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Burt Family Trust - 1993

Disclosed balance after: 0

SEC source: 0001246991-21-000252 · wf-form4_163701319246936.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Burt Family Trust - 1993

Disclosed balance after: 2,116

SEC source: 0001246991-21-000252 · wf-form4_163701319246936.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

SEC source: 0001246991-21-000253 · wf-form4_163701321929020.xml · derivative · entry 3

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,011

Underlying: Common OP Units · 2,116 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 · security: Represents LTIP Units in the Issuer issued as long term incentive compensation pursuant to BXP'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 Issuer or 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 common stock of BXP, except that BXP may, at its election, acquire each Common OP Unit so presented for one share of BXP's common stock. LTIP Units have no expiration date.

F3 · derivative.exercise_price: Represents LTIP Units in the Issuer issued as long term incentive compensation pursuant to BXP'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 Issuer or 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 common stock of BXP, except that BXP may, at its election, acquire each Common OP Unit so presented for one share of BXP's common stock. LTIP Units have no expiration date.

F2 · kind: 2,116 of the Reporting Person's units of limited partnership interest ("LTIP Units") in the Issuer were converted into Common OP Units in the Issuer by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of common stock of BXP, in accordance with the terms of the Issuer's Partnership Agreement.

F3 · derivative.exercise_date: Represents LTIP Units in the Issuer issued as long term incentive compensation pursuant to BXP'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 Issuer or 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 common stock of BXP, except that BXP may, at its election, acquire each Common OP Unit so presented for one share of BXP's common stock. LTIP Units have no expiration date.

F3 · derivative.expiration_date: Represents LTIP Units in the Issuer issued as long term incentive compensation pursuant to BXP'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 Issuer or 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 common stock of BXP, except that BXP may, at its election, acquire each Common OP Unit so presented for one share of BXP's common stock. LTIP Units have no expiration date.

SEC source: 0001246991-21-000253 · wf-form4_163701321929020.xml · nonDerivative · entry 2

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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 · security: Represents common units of limited partnership interest ("Common OP Units") in the Issuer. Each Common OP 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 common stock of Boston Properties, Inc. ("BXP"), the Issuer's sole general partner, except that BXP may at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BXP.

F2 · kind: 2,116 of the Reporting Person's units of limited partnership interest ("LTIP Units") in the Issuer were converted into Common OP Units in the Issuer by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of common stock of BXP, in accordance with the terms of the Issuer's Partnership Agreement.

F1 · price: Represents common units of limited partnership interest ("Common OP Units") in the Issuer. Each Common OP 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 common stock of Boston Properties, Inc. ("BXP"), the Issuer's sole general partner, except that BXP may at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BXP.

F2 · price: 2,116 of the Reporting Person's units of limited partnership interest ("LTIP Units") in the Issuer were converted into Common OP Units in the Issuer by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of common stock of BXP, in accordance with the terms of the Issuer's Partnership Agreement.

SEC source: 0001246991-21-000253 · wf-form4_163701321929020.xml · nonDerivative · entry 1

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,116

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 · security: Represents common units of limited partnership interest ("Common OP Units") in the Issuer. Each Common OP 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 common stock of Boston Properties, Inc. ("BXP"), the Issuer's sole general partner, except that BXP may at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BXP.

F2 · kind: 2,116 of the Reporting Person's units of limited partnership interest ("LTIP Units") in the Issuer were converted into Common OP Units in the Issuer by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of common stock of BXP, in accordance with the terms of the Issuer's Partnership Agreement.

F1 · price: Represents common units of limited partnership interest ("Common OP Units") in the Issuer. Each Common OP 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 common stock of Boston Properties, Inc. ("BXP"), the Issuer's sole general partner, except that BXP may at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BXP.

F2 · price: 2,116 of the Reporting Person's units of limited partnership interest ("LTIP Units") in the Issuer were converted into Common OP Units in the Issuer by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of common stock of BXP, in accordance with the terms of the Issuer's Partnership Agreement.

SEC source: 0001246991-21-000252 · wf-form4_163701319246936.xml · derivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 2,116 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 · security: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's common stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock. Common OP Units have no expiration date.

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 its election, acquire each Common OP Unit so presented for redemption for one share of common stock. Common OP Units have no expiration date.

F1 · kind: 2,116 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's common stock in accordance with BPLP's Partnership Agreement.

F1 · price: 2,116 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 its 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 its 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 its election, acquire each Common OP Unit so presented for redemption for one share of common stock. Common OP Units have no expiration date.

SEC source: 0001246991-21-000252 · wf-form4_163701319246936.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,116

Underlying: Common Stock, par value $0.01 · 2,116 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 · security: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's common stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock. Common OP Units have no expiration date.

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 its election, acquire each Common OP Unit so presented for redemption for one share of common stock. Common OP Units have no expiration date.

F1 · kind: 2,116 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's common stock in accordance with BPLP's Partnership Agreement.

F1 · price: 2,116 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 its 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 its 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 its election, acquire each Common OP Unit so presented for redemption for one share of common stock. Common OP Units have no expiration date.

SEC source: 0001246991-21-000252 · wf-form4_163701319246936.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,011

Underlying: Common Stock, par value $0.01 · 2,116 shares

Expires not disclosed

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

F2 · security: Represents units of limited partnership interest in Boston Properties Limited Partnership ("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 BPLP or the holder, into a common unit of limited partnership interest in BPLP ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be presented for redemption, at the election of the holder, for cash equal to the then fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for one share of Common Stock. LTIP Units have no expiration date.

F2 · derivative.exercise_price: Represents units of limited partnership interest in Boston Properties Limited Partnership ("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 BPLP or 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: 2,116 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 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 BPLP or 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 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 BPLP or 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: 0001246991-21-000252 · wf-form4_163701319246936.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,116

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: 2,116 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: 0001246991-21-000206 · wf-form4_162335447672200.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Burt Family Trust - 1993

Disclosed balance after: 0

SEC source: 0001246991-21-000207 · wf-form4_162335449777492.xml · derivative · entry 3

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,127

Underlying: Common OP Units · 2,000 shares

Expires not disclosed

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

F3 · security: Represents LTIP Units in the Issuer issued as long term incentive compensation pursuant to BXP'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 Issuer or 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 common stock of BXP, except that BXP may, at its election, acquire each Common OP Unit so presented for one share of BXP's common stock. LTIP Units have no expiration date.

F3 · derivative.exercise_price: Represents LTIP Units in the Issuer issued as long term incentive compensation pursuant to BXP'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 Issuer or 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 common stock of BXP, except that BXP may, at its election, acquire each Common OP Unit so presented for one share of BXP's common stock. LTIP Units have no expiration date.

F2 · kind: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in the Issuer were converted into Common OP Units in the Issuer by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of common stock of BXP, in accordance with the terms of the Issuer's Partnership Agreement.

F3 · derivative.exercise_date: Represents LTIP Units in the Issuer issued as long term incentive compensation pursuant to BXP'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 Issuer or 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 common stock of BXP, except that BXP may, at its election, acquire each Common OP Unit so presented for one share of BXP's common stock. LTIP Units have no expiration date.

F3 · derivative.expiration_date: Represents LTIP Units in the Issuer issued as long term incentive compensation pursuant to BXP'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 Issuer or 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 common stock of BXP, except that BXP may, at its election, acquire each Common OP Unit so presented for one share of BXP's common stock. LTIP Units have no expiration date.

SEC source: 0001246991-21-000207 · wf-form4_162335449777492.xml · nonDerivative · entry 2

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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 · security: Represents common units of limited partnership interest ("Common OP Units") in the Issuer. Each Common OP 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 common stock of Boston Properties, Inc. ("BXP"), the Issuer's sole general partner, except that BXP may at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BXP.

F2 · kind: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in the Issuer were converted into Common OP Units in the Issuer by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of common stock of BXP, in accordance with the terms of the Issuer's Partnership Agreement.

F1 · price: Represents common units of limited partnership interest ("Common OP Units") in the Issuer. Each Common OP 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 common stock of Boston Properties, Inc. ("BXP"), the Issuer's sole general partner, except that BXP may at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BXP.

F2 · price: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in the Issuer were converted into Common OP Units in the Issuer by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of common stock of BXP, in accordance with the terms of the Issuer's Partnership Agreement.

SEC source: 0001246991-21-000207 · wf-form4_162335449777492.xml · nonDerivative · entry 1

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,000

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

F1 · security: Represents common units of limited partnership interest ("Common OP Units") in the Issuer. Each Common OP 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 common stock of Boston Properties, Inc. ("BXP"), the Issuer's sole general partner, except that BXP may at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BXP.

F2 · kind: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in the Issuer were converted into Common OP Units in the Issuer by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of common stock of BXP, in accordance with the terms of the Issuer's Partnership Agreement.

F1 · price: Represents common units of limited partnership interest ("Common OP Units") in the Issuer. Each Common OP 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 common stock of Boston Properties, Inc. ("BXP"), the Issuer's sole general partner, except that BXP may at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BXP.

F2 · price: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in the Issuer were converted into Common OP Units in the Issuer by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of common stock of BXP, in accordance with the terms of the Issuer's Partnership Agreement.

SEC source: 0001246991-21-000206 · wf-form4_162335447672200.xml · derivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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

Expires not disclosed

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

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

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 its election, acquire each Common OP Unit so presented for redemption for one share of common stock. Common OP Units have no expiration date.

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

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

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 its 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 its 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 its election, acquire each Common OP Unit so presented for redemption for one share of common stock. Common OP Units have no expiration date.

SEC source: 0001246991-21-000206 · wf-form4_162335447672200.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,000

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

Expires not disclosed

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

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

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 its election, acquire each Common OP Unit so presented for redemption for one share of common stock. Common OP Units have no expiration date.

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

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

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 its 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 its 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 its election, acquire each Common OP Unit so presented for redemption for one share of common stock. Common OP Units have no expiration date.

SEC source: 0001246991-21-000206 · wf-form4_162335447672200.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,127

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

Expires not disclosed

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

F2 · 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 BPLP or 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.

F2 · 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 BPLP or 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: 2,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's common stock in accordance with BPLP's Partnership Agreement.

F2 · 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 BPLP or 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.

F2 · 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 BPLP or 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: 0001246991-21-000206 · wf-form4_162335447672200.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Burt Family Trust - 1993

Disclosed balance after: 2,000

SEC source: 0001246991-21-000206 · wf-form4_162335447672200.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

SEC source: 0001246991-21-000206 · wf-form4_162335447672200.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,000

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

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

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

SEC source: 0001246991-21-000094 · wf-form4_161247239341538.xml · derivative · entry 1

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,127

Underlying: Common OP Units · 1,110 shares

Expires not disclosed

F1 · security: Represents LTIP Units granted pursuant to the Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 2021 Multi-Year Long-Term Incentive Program (the "2021 Program"). 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 the Issuer ("Common OP Unit").Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

F1 · derivative.exercise_price: Represents LTIP Units granted pursuant to the Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 2021 Multi-Year Long-Term Incentive Program (the "2021 Program"). 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 the Issuer ("Common OP Unit").Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

F1 · derivative.exercise_date: Represents LTIP Units granted pursuant to the Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 2021 Multi-Year Long-Term Incentive Program (the "2021 Program"). 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 the Issuer ("Common OP Unit").Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

F2 · derivative.exercise_date: The 1,110 LTIP Units may be earned based on the achievement of certain performance criteria based on BPI's total shareholder return over a three-year performance period ending on February 1, 2024. Any LTIP Units earned pursuant to the 2021 Program will vest in full on February 1, 2024, with each earned LTIP Unit and Common OP Unit acquired upon conversion of such LTIP Unit subject to an additional post-vesting holding period pursuant to which such LTIP Unit and Common OP Unit generally may not be transferred, and the redemption right associated with the Common OP Unit may not be exercised, until one year after the vesting date.

F1 · derivative.expiration_date: Represents LTIP Units granted pursuant to the Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 2021 Multi-Year Long-Term Incentive Program (the "2021 Program"). 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 the Issuer ("Common OP Unit").Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

SEC source: 0001246991-21-000093 · wf-form4_161247237434087.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,127

Underlying: Common Stock, par value $0.01 · 1,110 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, granted pursuant to the Issuer's 2021 Multi-Year Long-Term Incentive Program (the "2021 Program"). 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, granted pursuant to the Issuer's 2021 Multi-Year Long-Term Incentive Program (the "2021 Program"). 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, granted pursuant to the Issuer's 2021 Multi-Year Long-Term Incentive Program (the "2021 Program"). 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 1,110 LTIP Units may be earned based on the achievement of certain performance criteria based on the Issuer's total shareholder return over a three-year performance period ending on February 1, 2024. Any LTIP Units earned pursuant to the 2021 Program will vest in full on February 1, 2024, with each earned LTIP Unit and Common OP Unit acquired upon conversion of such LTIP Unit subject to an additional post-vesting holding period pursuant to which such LTIP Unit and Common OP Unit generally may not be transferred, and the redemption right associated with the Common OP Unit may not be exercised, until one year after the vesting date.

F1 · derivative.expiration_date: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, granted pursuant to the Issuer's 2021 Multi-Year Long-Term Incentive Program (the "2021 Program"). 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: 0001246991-21-000040 · wf-form4_161229075736938.xml · derivative · entry 1

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,017

Underlying: Common OP Units · 2,848 shares

Expires not disclosed

F1 · security: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

F1 · derivative.exercise_price: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

F1 · derivative.exercise_date: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

F2 · derivative.exercise_date: The 2,848 LTIP Units vest in four equal annual installments beginning on January 15, 2022.

F1 · derivative.expiration_date: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

SEC source: 0001246991-21-000039 · wf-form4_161229074034717.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,017

Underlying: Common Stock, par value $0.01 · 2,848 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 2,848 LTIP Units vest in four equal annual installments beginning on January 15, 2022.

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: 0001246991-20-000134 · wf-form4_158342409504588.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Burt Family Trust - 1993

Disclosed balance after: 0

F1 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $135.16 to $135.30, 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: 0001246991-20-000132 · wf-form4_158274739433242.xml · derivative · entry 3

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,169

Underlying: Common OP Units · 3,000 shares

Expires not disclosed

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

F4 · security: Represents units of limited partnership ("LTIP Units") in the Issuer issued as long term incentive compensation pursuant to BPI's equity based 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 Common Stock of BPI, except that BPI may, at its election, acquire each Common OP Unit so presented for one share of BPI's Common Stock. LTIP Units have no expiration date.

F4 · derivative.exercise_price: Represents units of limited partnership ("LTIP Units") in the Issuer issued as long term incentive compensation pursuant to BPI's equity based 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 Common Stock of BPI, except that BPI may, at its election, acquire each Common OP Unit so presented for one share of BPI's Common Stock. LTIP Units have no expiration date.

F4 · derivative.exercise_date: Represents units of limited partnership ("LTIP Units") in the Issuer issued as long term incentive compensation pursuant to BPI's equity based 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 Common Stock of BPI, except that BPI may, at its election, acquire each Common OP Unit so presented for one share of BPI's Common Stock. LTIP Units have no expiration date.

F4 · derivative.expiration_date: Represents units of limited partnership ("LTIP Units") in the Issuer issued as long term incentive compensation pursuant to BPI's equity based 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 Common Stock of BPI, except that BPI may, at its election, acquire each Common OP Unit so presented for one share of BPI's Common Stock. LTIP Units have no expiration date.

SEC source: 0001246991-20-000132 · wf-form4_158274739433242.xml · nonDerivative · entry 2

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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 · security: Represents Common OP Units in the Issuer. Each Common OP 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 Common Stock of Boston Properties, Inc. ("BPI"), the Issuer's sole general partner, except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock of BPI. Common OP Units have no expiration date.

SEC source: 0001246991-20-000132 · wf-form4_158274739433242.xml · nonDerivative · entry 1

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,000

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

F1 · security: Represents common units of limited partnership interest ("Common OP Units") in the Issuer. Each Common OP 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 Common Stock of Boston Properties, Inc. ("BPI"), the Issuer's sole general partner, except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock of BPI.

F2 · kind: 3,000 of the Reporting Person's Common OP Units in the Issuer were redeemed for an equal number of shares of Common Stock of BPI, in accordance with the terms of the Issuer's Partnership Agreement.

F1 · price: Represents common units of limited partnership interest ("Common OP Units") in the Issuer. Each Common OP 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 Common Stock of Boston Properties, Inc. ("BPI"), the Issuer's sole general partner, except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock of BPI.

F2 · price: 3,000 of the Reporting Person's Common OP Units in the Issuer were redeemed for an equal number of shares of Common Stock of BPI, in accordance with the terms of the Issuer's Partnership Agreement.

SEC source: 0001246991-20-000131 · wf-form4_158274737313423.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 3,000 shares

Expires not disclosed

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

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

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 its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F1 · kind: 3,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F1 · price: 3,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

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 its 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 its 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 its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

SEC source: 0001246991-20-000131 · wf-form4_158274737313423.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,000

Underlying: Common Stock, par value $0.01 · 3,000 shares

Expires not disclosed

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

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

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 its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F1 · kind: 3,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F1 · price: 3,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

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 its 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 its 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 its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

SEC source: 0001246991-20-000131 · wf-form4_158274737313423.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,169

Underlying: Common Stock, par value $0.01 · 3,000 shares

Expires not disclosed

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

F2 · 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.

F2 · 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: 3,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F2 · 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.

F2 · 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: 0001246991-20-000131 · wf-form4_158274737313423.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Burt Family Trust - 1993

Disclosed balance after: 3,000

F1 · kind: 3,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

SEC source: 0001246991-20-000131 · wf-form4_158274737313423.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: 3,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

SEC source: 0001246991-20-000131 · wf-form4_158274737313423.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,000

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

F1 · kind: 3,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

F1 · price: 3,000 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's Common Stock in accordance with BPLP's Partnership Agreement.

SEC source: 0001246991-20-000114 · wf-form4_158222736442317.xml · derivative · entry 1

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,169

Underlying: Common OP Units · 355 shares

Expires not disclosed

F1 · security: Represents units of limited partnership interest in the Issuer earned (i.e., for which the performance-based hurdles have been met) pursuant to Boston Properties, Inc.'s ("BPI's"), the Issuer's sole general partner's, 2017 Multi-Year Long-Term Incentive Program (the "Program").

F2 · derivative.exercise_price: Conditioned upon minimum allocations to the capital accounts of the LTIP Units for federal income tax purposes, each LTIP Unit may be converted, at the election of the holder, into a common unit of limited partnership interest in the Issuer ("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 Common Stock of BPI, except that BPI may, at its election, acquire each Common OP Unit so presented for one share of BPI's Common Stock. LTIP Units have no expiration date.

F2 · derivative.exercise_date: Conditioned upon minimum allocations to the capital accounts of the LTIP Units for federal income tax purposes, each LTIP Unit may be converted, at the election of the holder, into a common unit of limited partnership interest in the Issuer ("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 Common Stock of BPI, except that BPI may, at its election, acquire each Common OP Unit so presented for one share of BPI's Common Stock. LTIP Units have no expiration date.

F3 · derivative.exercise_date: The 355 LTIP Units earned pursuant to the Program vested 50% upon being earned and 50% will vest on February 6, 2021.

F2 · derivative.expiration_date: Conditioned upon minimum allocations to the capital accounts of the LTIP Units for federal income tax purposes, each LTIP Unit may be converted, at the election of the holder, into a common unit of limited partnership interest in the Issuer ("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 Common Stock of BPI, except that BPI may, at its election, acquire each Common OP Unit so presented for one share of BPI's Common Stock. LTIP Units have no expiration date.

SEC source: 0001246991-20-000105 · wf-form4_158222716749364.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,169

Underlying: Common Stock, par value $0.01 · 355 shares

Expires not disclosed

F1 · security: Represents units of limited partnership interest in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, earned (i.e., for which the performance-based hurdles have been met) pursuant to the Issuer's 2017 Multi-Year Long-Term Incentive Program (the "Program").

F2 · derivative.exercise_price: Conditioned upon minimum allocations to the capital accounts of the LTIP Units for federal income tax purposes, each LTIP Unit may be converted, at the election of the holder, into a common unit of limited partnership interest in BPLP ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be presented for redemption, at the election of the holder, for cash equal to the then fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for one share of Common Stock. LTIP Units have no expiration date.

F2 · derivative.exercise_date: Conditioned upon minimum allocations to the capital accounts of the LTIP Units for federal income tax purposes, each LTIP Unit may be converted, at the election of the holder, into a common unit of limited partnership interest in BPLP ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be presented for redemption, at the election of the holder, for cash equal to the then fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for one share of Common Stock. LTIP Units have no expiration date.

F3 · derivative.exercise_date: The 355 LTIP Units earned pursuant to the Program vested 50% upon being earned and 50% will vest on February 6, 2021.

F2 · derivative.expiration_date: Conditioned upon minimum allocations to the capital accounts of the LTIP Units for federal income tax purposes, each LTIP Unit may be converted, at the election of the holder, into a common unit of limited partnership interest in BPLP ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be presented for redemption, at the election of the holder, for cash equal to the then fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for one share of Common Stock. LTIP Units have no expiration date.

SEC source: 0001246991-20-000063 · wf-form4_158092871993864.xml · derivative · entry 1

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,814

Underlying: Common OP Units · 691 shares

Expires not disclosed

F1 · security: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

F1 · derivative.exercise_price: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

F1 · derivative.exercise_date: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

F2 · derivative.exercise_date: The 691 LTIP Units vest 100% on January 15, 2024.

F1 · derivative.expiration_date: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

SEC source: 0001246991-20-000062 · wf-form4_158092869850540.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,814

Underlying: Common Stock, par value $0.01 · 691 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 691 LTIP Units vest 100% on January 15, 2024.

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: 0001246991-20-000040 · wf-form4_158076410220996.xml · derivative · entry 1

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,123

Underlying: Common OP Units · 1,813 shares

Expires not disclosed

F1 · security: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

F1 · derivative.exercise_price: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. LTIP Units have no expiration date.

F1 · derivative.exercise_date: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. 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: Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s ("BPI"), the Issuer's general partner, 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 the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be redeemed, at the election of the holder, for cash equal to the then fair market value of a share of common stock of BPI except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of common stock of BPI. 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: 0001246991-19-000090 · wf-form4_155078366523505.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Burt Family Trust - 1993

Disclosed balance after: 0

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

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Burt Family Trust - 1993

Disclosed balance after: 100

SEC source: 0001246991-19-000079 · wf-form4_155070026680518.xml · derivative · entry 4

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,310

Underlying: Common OP Units · 10,798 shares

Expires not disclosed

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

F6 · security: Represents units of limited partnership in the Issuer issued as long term incentive compensation pursuant to BPI'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 the Issuer ("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 Common Stock of BPI, except that BPI may, at its election, acquire each Common OP Unit so presented for one share of BPI's Common Stock. LTIP Units have no expiration date.

F6 · derivative.exercise_price: Represents units of limited partnership in the Issuer issued as long term incentive compensation pursuant to BPI'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 the Issuer ("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 Common Stock of BPI, except that BPI may, at its election, acquire each Common OP Unit so presented for one share of BPI's Common Stock. LTIP Units have no expiration date.

F6 · derivative.exercise_date: Represents units of limited partnership in the Issuer issued as long term incentive compensation pursuant to BPI'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 the Issuer ("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 Common Stock of BPI, except that BPI may, at its election, acquire each Common OP Unit so presented for one share of BPI's Common Stock. LTIP Units have no expiration date.

F6 · derivative.expiration_date: Represents units of limited partnership in the Issuer issued as long term incentive compensation pursuant to BPI'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 the Issuer ("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 Common Stock of BPI, except that BPI may, at its election, acquire each Common OP Unit so presented for one share of BPI's Common Stock. LTIP Units have no expiration date.

SEC source: 0001246991-19-000079 · wf-form4_155070026680518.xml · nonDerivative · entry 2

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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 · security: Represents common units of limited partnership interest ("Common OP Units") in the Issuer. Each Common OP 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 Common Stock of Boston Properties, Inc. ("BPI"), the Issuer's sole general partner, except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock of BPI. Common OP Units have no expiration date.

F2 · kind: 2,000 of the Reporting Person's Common OP Units in the Issuer were redeemed for an equal number of shares of Common Stock of BPI, in accordance with the terms of the Issuer's Partnership Agreement.

F1 · price: Represents common units of limited partnership interest ("Common OP Units") in the Issuer. Each Common OP 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 Common Stock of Boston Properties, Inc. ("BPI"), the Issuer's sole general partner, except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock of BPI. Common OP Units have no expiration date.

F2 · price: 2,000 of the Reporting Person's Common OP Units in the Issuer were redeemed for an equal number of shares of Common Stock of BPI, in accordance with the terms of the Issuer's Partnership Agreement.

SEC source: 0001246991-19-000079 · wf-form4_155070026680518.xml · nonDerivative · entry 1

BURT FRANK D · CIK 0001217093 · Senior Vice President of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,000

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

F1 · security: Represents common units of limited partnership interest ("Common OP Units") in the Issuer. Each Common OP 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 Common Stock of Boston Properties, Inc. ("BPI"), the Issuer's sole general partner, except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock of BPI. Common OP Units have no expiration date.

F2 · kind: 2,000 of the Reporting Person's Common OP Units in the Issuer were redeemed for an equal number of shares of Common Stock of BPI, in accordance with the terms of the Issuer's Partnership Agreement.

F1 · price: Represents common units of limited partnership interest ("Common OP Units") in the Issuer. Each Common OP 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 Common Stock of Boston Properties, Inc. ("BPI"), the Issuer's sole general partner, except that BPI may, at its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock of BPI. Common OP Units have no expiration date.

F2 · price: 2,000 of the Reporting Person's Common OP Units in the Issuer were redeemed for an equal number of shares of Common Stock of BPI, in accordance with the terms of the Issuer's Partnership Agreement.

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

BURT FRANK D · CIK 0001217093 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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

Expires not disclosed

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

F6 · security: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F6 · derivative.exercise_price: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

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

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

F6 · price: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F6 · derivative.exercise_date: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F6 · derivative.expiration_date: Represents Common OP Units in BPLP. Each Common OP Unit may be presented for redemption, at the election of the holder, for cash equal to the fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.