RITCHEY RAYMOND A

SEC source: 0001246991-22-000212 · wf-form4_166066008589320.xml · nonDerivative · entry 2

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,805

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 BXP's common stock.

F2 · kind: 22,472 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 BXP's common stock, 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 BXP's common stock.

F2 · price: 22,472 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 BXP's common stock, in accordance with the terms of the Issuer's Partnership Agreement.

SEC source: 0001246991-22-000212 · wf-form4_166066008589320.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 111,277

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 BXP's common stock.

F2 · kind: 22,472 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 BXP's common stock, 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 BXP's common stock.

F2 · price: 22,472 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 BXP's common stock, in accordance with the terms of the Issuer's Partnership Agreement.

SEC source: 0001246991-22-000213 · wf-form4_166066018572182.xml · derivative · entry 5

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,805

Underlying: Common Stock, par value $0.01 · 22,472 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 · 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 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 the Issuer's Common Stock. Common OP Units have no expiration date.

F1 · kind: 22,472 of the reporting person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the 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: 22,472 of the reporting person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the 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.

F4 · 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 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 the Issuer's Common Stock. Common OP Units have no expiration date.

F4 · 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 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 the Issuer's Common Stock. Common OP Units have no expiration date.

F4 · 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 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 the Issuer's Common Stock. Common OP Units have no expiration date.

SEC source: 0001246991-22-000213 · wf-form4_166066018572182.xml · derivative · entry 4

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 111,277

Underlying: Common Stock, par value $0.01 · 22,472 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 · 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 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 the Issuer's Common Stock. Common OP Units have no expiration date.

F1 · kind: 22,472 of the reporting person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the 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: 22,472 of the reporting person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the 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.

F4 · 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 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 the Issuer's Common Stock. Common OP Units have no expiration date.

F4 · 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 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 the Issuer's Common Stock. Common OP Units have no expiration date.

F4 · 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 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 the Issuer's Common Stock. Common OP Units have no expiration date.

SEC source: 0001246991-22-000213 · wf-form4_166066018572182.xml · derivative · entry 3

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 170,094

Underlying: Common Stock, par value $0.01 · 22,472 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 BPLP 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 the Issuer's common stock. LTIP Units have no expiration date.

F3 · derivative.exercise_price: Represents LTIP Units in BPLP 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 the Issuer's common stock. LTIP Units have no expiration date.

F1 · kind: 22,472 of the reporting person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the reporting person and the Common OP Units were redeemed for an equal number of shares of the Issuer's common stock in accordance with BPLP's Partnership Agreement.

F3 · derivative.exercise_date: Represents LTIP Units in BPLP 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 the Issuer's common stock. LTIP Units have no expiration date.

F3 · derivative.expiration_date: Represents LTIP Units in BPLP 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 the Issuer's common stock. LTIP Units have no expiration date.

SEC source: 0001246991-22-000213 · wf-form4_166066018572182.xml · nonDerivative · entry 2

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $89.61 to $90.165, 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: 0001246991-22-000213 · wf-form4_166066018572182.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,472

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: 22,472 of the reporting person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the 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: 22,472 of the reporting person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the 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: 0001246991-22-000140 · wf-form4_164572158667907.xml · derivative · entry 5

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 192,566

Underlying: Common OP Units · 21,102 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: 21,102 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: 0001246991-22-000140 · wf-form4_164572158667907.xml · nonDerivative · entry 2

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,805

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: 21,102 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: 21,102 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: 0001246991-22-000140 · wf-form4_164572158667907.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 109,907

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: 21,102 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: 21,102 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: 0001246991-22-000139 · wf-form4_164572156994152.xml · derivative · entry 5

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,805

Underlying: Common Stock, par value $0.01 · 21,102 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 · 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 fair market value of a share of the Issuer's common stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F1 · kind: 21,102 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: 21,102 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.

F4 · 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 fair market value of a share of the Issuer's common stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F4 · 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 fair market value of a share of the Issuer's common stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F4 · 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 fair market value of a share of the Issuer's common stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

SEC source: 0001246991-22-000139 · wf-form4_164572156994152.xml · derivative · entry 4

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 109,907

Underlying: Common Stock, par value $0.01 · 21,102 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 · 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 fair market value of a share of the Issuer's common stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F1 · kind: 21,102 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: 21,102 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.

F4 · 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 fair market value of a share of the Issuer's common stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F4 · 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 fair market value of a share of the Issuer's common stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F4 · 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 fair market value of a share of the Issuer's common stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

SEC source: 0001246991-22-000139 · wf-form4_164572156994152.xml · derivative · entry 3

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 192,566

Underlying: Common Stock, par value $0.01 · 21,102 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 BPLP 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 unit of limited partnership interest ("Common OP Unit") in BPLP. Each Common OP Unit acquired upon conversion of an LTIP Unit may be presented for redemption, at the election of the holder, for cash equal to the then fair market value of a share of the Issuer's common stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for one share of common stock. LTIP Units have no expiration date.

F3 · derivative.exercise_price: Represents LTIP Units in BPLP 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 unit of limited partnership interest ("Common OP Unit") in BPLP. Each Common OP Unit acquired upon conversion of an LTIP Unit may be presented for redemption, at the election of the holder, for cash equal to the then fair market value of a share of the Issuer's common stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for one share of common stock. LTIP Units have no expiration date.

F1 · kind: 21,102 of the Reporting Person's units of limited partnership interest ("LTIP Units") in Boston Properties Limited Partnership ("BPLP"), of which the Issuer is the sole general partner, were converted into common units of limited partnership interest ("Common OP Units") in BPLP by the Reporting Person and the Common OP Units were redeemed for an equal number of shares of the Issuer's common stock in accordance with BPLP's Partnership Agreement.

F3 · derivative.exercise_date: Represents LTIP Units in BPLP 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 unit of limited partnership interest ("Common OP Unit") in BPLP. Each Common OP Unit acquired upon conversion of an LTIP Unit may be presented for redemption, at the election of the holder, for cash equal to the then fair market value of a share of the Issuer's common stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for one share of common stock. LTIP Units have no expiration date.

F3 · derivative.expiration_date: Represents LTIP Units in BPLP 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 unit of limited partnership interest ("Common OP Unit") in BPLP. Each Common OP Unit acquired upon conversion of an LTIP Unit may be presented for redemption, at the election of the holder, for cash equal to the then fair market value of a share of the Issuer's common stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for one share of common stock. LTIP Units have no expiration date.

SEC source: 0001246991-22-000139 · wf-form4_164572156994152.xml · nonDerivative · entry 2

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $120.2900 to $120.6000, 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: 0001246991-22-000139 · wf-form4_164572156994152.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,102

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: 21,102 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: 21,102 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: 0001246991-22-000134 · wf-form4_164513827789791.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 213,668

Underlying: Common OP Units · 11,852 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 ("BXP's"), the Issuer's sole general partner's, 2019 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 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 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 · 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 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 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_date: The 11,852 LTIP Units earned pursuant to the Program vested 50% upon being earned and 50% will vest on February 4, 2023.

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 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 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: 0001246991-22-000127 · wf-form4_164513812607562.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 213,668

Underlying: Common Stock, par value $0.01 · 11,852 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 2019 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 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: 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.

F3 · derivative.exercise_date: The 11,852 LTIP Units earned pursuant to the Program vested 50% upon being earned and 50% will vest on February 4, 2023.

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 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: 0001246991-22-000104 · wf-form4_164391362575202.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 201,816

Underlying: Common OP Units · 17,429 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 17,429 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: 0001246991-22-000103 · wf-form4_164391360724330.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 201,816

Underlying: Common Stock, par value $0.01 · 17,429 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 17,429 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: 0001246991-22-000057 · wf-form4_164374913063450.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 184,387

Underlying: Common OP Units · 19,461 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 19,461 LTIP Units were fully vested upon issuance as a result of the Reporting Person's attainment of age 65.

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: 0001246991-22-000056 · wf-form4_164374911317440.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 184,387

Underlying: Common Stock, par value $0.01 · 19,461 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 19,461 LTIP Units were fully vested upon issuance as a result of the Reporting Person's attainment of age 65.

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: 0001246991-21-000231 · wf-form4_163104950685198.xml · nonDerivative · entry 2

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $113.28 to $114.16, 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: 0001246991-21-000231 · wf-form4_163104950685198.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,410

F1 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $112.26 to $113.26, 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: 0001246991-21-000203 · wf-form4_162275006789169.xml · derivative · entry 5

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 164,926

Underlying: Common OP Units · 40,000 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: 40,000 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: 0001246991-21-000203 · wf-form4_162275006789169.xml · nonDerivative · entry 2

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,805

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: 40,000 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: 40,000 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: 0001246991-21-000203 · wf-form4_162275006789169.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,805

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: 40,000 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: 40,000 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: 0001246991-21-000202 · wf-form4_162275004772046.xml · derivative · entry 4

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,805

Underlying: Common Stock, par value $0.01 · 40,000 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 · 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 fair market value of a share of the Issuer's common stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F1 · kind: 40,000 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: 40,000 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 fair market value of a share of the Issuer's common stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

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

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

SEC source: 0001246991-21-000202 · wf-form4_162275004772046.xml · derivative · entry 3

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,805

Underlying: Common Stock, par value $0.01 · 40,000 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 · 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 fair market value of a share of the Issuer's common stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F1 · kind: 40,000 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: 40,000 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 fair market value of a share of the Issuer's common stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

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

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

SEC source: 0001246991-21-000202 · wf-form4_162275004772046.xml · derivative · entry 2

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 164,926

Underlying: Common Stock, par value $0.01 · 40,000 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 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 unit of limited partnership interest ("Common OP Unit") in BPLP. Each Common OP Unit acquired upon conversion of an LTIP Unit may be presented for redemption, at the election of the holder, for cash equal to the then fair market value of a share of the Issuer's common stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for one share of common stock. LTIP Units have no expiration date.

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

F1 · kind: 40,000 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 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 unit of limited partnership interest ("Common OP Unit") in BPLP. Each Common OP Unit acquired upon conversion of an LTIP Unit may be presented for redemption, at the election of the holder, for cash equal to the then fair market value of a share of the Issuer's common stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for one share of common stock. LTIP Units have no expiration date.

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

SEC source: 0001246991-21-000202 · wf-form4_162275004772046.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,000

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: 40,000 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: 40,000 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: 0001246991-21-000169 · wf-form4_162221534901563.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,000

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 23, 2021.

SEC source: 0001246991-21-000159 · wf-form4_162196842755231.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 23, 2021.

F2 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $115.00 to $115.1850, 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: 0001246991-21-000157 · wf-form4_161954844437999.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,000

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 23, 2021.

SEC source: 0001246991-21-000138 · wf-form4_161711034299565.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,000

F1 · shares: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 23, 2021.

SEC source: 0001246991-21-000136 · wf-form4_161549730087370.xml · derivative · entry 5

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 204,926

Underlying: Common OP Units · 60,000 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 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.

F4 · 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.

F4 · 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.

F4 · 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: 0001246991-21-000136 · wf-form4_161549730087370.xml · nonDerivative · entry 2

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,805

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: 60,000 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, pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on February 23, 2021.

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: 60,000 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, pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on February 23, 2021.

SEC source: 0001246991-21-000136 · wf-form4_161549730087370.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 148,805

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: 60,000 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, pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on February 23, 2021.

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: 60,000 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, pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on February 23, 2021.

F3 · balance_after: Reflects the transfer on June 12, 2020 of 10,500 Common OP Units previously owned directly by the Reporting Person to the Raymond A. Ritchey 2020 Grantor Retained Annuity Trust, of which the Reporting Person is the sole trustee and beneficiary.

SEC source: 0001246991-21-000135 · wf-form4_161549727683274.xml · derivative · entry 4

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,805

Underlying: Common Stock, par value $0.01 · 60,000 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 · 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 fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F1 · kind: 60,000 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 common stock of the Issuer ("Common Stock") pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on February 23, 2021.

F1 · price: 60,000 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 common stock of the Issuer ("Common Stock") pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on February 23, 2021.

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 fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

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

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

SEC source: 0001246991-21-000135 · wf-form4_161549727683274.xml · derivative · entry 3

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 148,805

Underlying: Common Stock, par value $0.01 · 60,000 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 · 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 fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

F1 · kind: 60,000 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 common stock of the Issuer ("Common Stock") pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on February 23, 2021.

F1 · price: 60,000 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 common stock of the Issuer ("Common Stock") pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on February 23, 2021.

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 fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at it's election, acquire each Common OP Unit so presented for redemption for one share of Common Stock. Common OP Units have no expiration date.

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

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

F4 · balance_after: Reflects the transfer on June 12, 2020 of 10,500 Common OP Units previously owned directly by the Reporting Person to the Raymond A. Ritchey 2020 Grantor Retained Annuity Trust, of which the reporting person is the sole trustee and beneficiary.

SEC source: 0001246991-21-000135 · wf-form4_161549727683274.xml · derivative · entry 2

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 204,926

Underlying: Common Stock, par value $0.01 · 60,000 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 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 unit of limited partnership interest ("Common OP Unit") in BPLP. Each Common OP Unit acquired upon conversion of an LTIP Unit may be presented for redemption, at the election of the holder, for cash equal to the then fair market value of a share of the Issuer's Common Stock, except that the Issuer may, at its election, acquire each Common OP Unit so presented for one share of Common Stock. LTIP Units have no expiration date.

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

F1 · kind: 60,000 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 common stock of the Issuer ("Common Stock") pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on February 23, 2021.

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

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

SEC source: 0001246991-21-000135 · wf-form4_161549727683274.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,000

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: 60,000 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 common stock of the Issuer ("Common Stock") pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on February 23, 2021.

F1 · price: 60,000 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 common stock of the Issuer ("Common Stock") pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on February 23, 2021.

SEC source: 0001246991-21-000130 · wf-form4_161359356388454.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 264,926

Underlying: Common OP Units · 8,131 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, 2018 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 8,131 LTIP Units earned pursuant to the Program vested 50% upon being earned and 50% will vest on February 5, 2022.

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: 0001246991-21-000121 · wf-form4_161359335996383.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 264,926

Underlying: Common Stock, par value $0.01 · 8,131 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 2018 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 8,131 LTIP Units earned pursuant to the Program vested 50% upon being earned and 50% will vest on February 5, 2022.

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: 0001246991-21-000084 · wf-form4_161247220883860.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 256,795

Underlying: Common OP Units · 24,481 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 24,481 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: 0001246991-21-000083 · wf-form4_161247218839082.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 256,795

Underlying: Common Stock, par value $0.01 · 24,481 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 24,481 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: 0001246991-21-000052 · wf-form4_161229132874765.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 232,314

Underlying: Common OP Units · 24,159 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 24,159 LTIP Units were fully vested upon issuance as a result of the Reporting Person's attainment of age 65.

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: 0001246991-21-000051 · wf-form4_161229131069145.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 232,314

Underlying: Common Stock, par value $0.01 · 24,159 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 24,159 LTIP Units were fully vested upon issuance as a result of the Reporting Person's attainment of age 65.

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: 0001246991-20-000120 · wf-form4_158222749520653.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP of GP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 208,155

Underlying: Common OP Units · 19,498 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 19,498 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: 0001246991-20-000111 · wf-form4_158222730063272.xml · derivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 208,155

Underlying: Common Stock, par value $0.01 · 19,498 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 19,498 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: 0001246991-20-000080 · wf-form4_158206099695140.xml · nonDerivative · entry 1

RITCHEY RAYMOND A · CIK 0001219153 · Senior EVP

10b5-1 filing: Not disclosed

Ownership: Indirect · By RAR/BP LLC

Disclosed balance after: 0

F1 · price: Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $145.695 to $146.00, 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.