Stein A William

SEC source: 0001415889-21-002691 · form4-05272021_030544.xml · nonDerivative · entry 4

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $152.08 to $152.73. The reporting person undertakes to provide Digital Realty Trust, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote

SEC source: 0001415889-21-002691 · form4-05272021_030544.xml · nonDerivative · entry 3

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,995

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $151.07 to $152.07. The reporting person undertakes to provide Digital Realty Trust, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-21-002691 · form4-05272021_030544.xml · nonDerivative · entry 2

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 89,878

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $150.05 to $151.05 The reporting person undertakes to provide Digital Realty Trust, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-21-002691 · form4-05272021_030544.xml · nonDerivative · entry 1

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

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: The reporting person converted long-term incentive units into common limited partnership units ("Common Units") of Digital Realty Trust, L.P. (the "Operating Partnership"), of which the Issuer is the general partner, and subsequently redeemed the Common Units for shares of the common stock of the Issuer, all in accordance with the requirements of the Limited Partnership Agreement of the Operating Partnership.

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

SEC source: 0001070750-21-000064 · edgardoc.xml · derivative · entry 1

Stein A William · CIK 0001307117 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,892.7357

Underlying: Common Stock · 8,249.8527 shares

Expires not disclosed

F1 · derivative.exercise_price: Each deferred stock unit represents the right to receive one share of common stock of the Issuer.

F2 · shares: The deferred stock units were granted to the director in lieu of an annual stock award.

F3 · derivative.exercise_date: The deferred stock units are fully vested and will be settled in shares of the Issuer's common stock on a date selected by the reporting person pursuant to the Host Hotels & Resorts, Inc.'s Non-Employee Directors' Deferred Stock Compensation Plan.

F3 · derivative.expiration_date: The deferred stock units are fully vested and will be settled in shares of the Issuer's common stock on a date selected by the reporting person pursuant to the Host Hotels & Resorts, Inc.'s Non-Employee Directors' Deferred Stock Compensation Plan.

SEC source: 0001415889-21-001118 · form4-03012021_060303.xml · derivative · entry 2

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 653,349

Underlying: Common Units · 37,238 shares

Expires not disclosed

F1 · security: Long-Term Incentive Units are profits interest units in the Issuer, of which the Digital Realty Trust, Inc. is the general partner (the "General Partner"). Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F1 · derivative.exercise_price: Long-Term Incentive Units are profits interest units in the Issuer, of which the Digital Realty Trust, Inc. is the general partner (the "General Partner"). Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F3 · shares: The units will vest in two equal annual installments beginning on February 25, 2022. The vested profits interest units have no expiration date.

F3 · derivative.exercise_date: The units will vest in two equal annual installments beginning on February 25, 2022. The vested profits interest units have no expiration date.

F3 · derivative.expiration_date: The units will vest in two equal annual installments beginning on February 25, 2022. The vested profits interest units have no expiration date.

SEC source: 0001415889-21-001118 · form4-03012021_060303.xml · derivative · entry 1

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 616,111

Underlying: Common Units · 2,792 shares

Expires not disclosed

F1 · security: Long-Term Incentive Units are profits interest units in the Issuer, of which the Digital Realty Trust, Inc. is the general partner (the "General Partner"). Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F1 · derivative.exercise_price: Long-Term Incentive Units are profits interest units in the Issuer, of which the Digital Realty Trust, Inc. is the general partner (the "General Partner"). Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F2 · shares: The units will vest in four equal annual installments beginning on February 27, 2022. The vested profits interest units have no expiration date.

F2 · derivative.exercise_date: The units will vest in four equal annual installments beginning on February 27, 2022. The vested profits interest units have no expiration date.

F2 · derivative.expiration_date: The units will vest in four equal annual installments beginning on February 27, 2022. The vested profits interest units have no expiration date.

SEC source: 0001415889-21-001119 · form4-03012021_060338.xml · derivative · entry 2

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 653,349

Underlying: Common Stock · 37,238 shares

Expires not disclosed

F1 · security: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F1 · derivative.exercise_price: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F3 · shares: The units will vest in two equal annual installments beginning on February 25, 2022. The vested profits interest units have no expiration date.

F3 · derivative.exercise_date: The units will vest in two equal annual installments beginning on February 25, 2022. The vested profits interest units have no expiration date.

F3 · derivative.expiration_date: The units will vest in two equal annual installments beginning on February 25, 2022. The vested profits interest units have no expiration date.

SEC source: 0001415889-21-001119 · form4-03012021_060338.xml · derivative · entry 1

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 616,111

Underlying: Common Stock · 2,792 shares

Expires not disclosed

F1 · security: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F1 · derivative.exercise_price: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F2 · shares: The units will vest in four equal annual installments beginning on February 27, 2022. The vested profits interest units have no expiration date.

F2 · derivative.exercise_date: The units will vest in four equal annual installments beginning on February 27, 2022. The vested profits interest units have no expiration date.

F2 · derivative.expiration_date: The units will vest in four equal annual installments beginning on February 27, 2022. The vested profits interest units have no expiration date.

SEC source: 0001415889-21-000168 · form4-01052021_040143.xml · derivative · entry 3

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 613,319

Underlying: Common Stock · 9,420 shares

Expires not disclosed

F1 · security: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F1 · derivative.exercise_price: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F4 · shares: Reflects an award initially granted on March 9, 2018 that was subject to a performance-based vesting condition which was determined to be satisfied on January 3, 2021. The number of units reported herein includes 820 distribution equivalent units, which vested effective as of December 31, 2020. The remaining 8600 units are subject to an additional time-based vesting condition, pursuant to which 50% of the units will vest annually over two years, beginning on February 27, 2021. The vested profits interest units have no expiration date.

F4 · derivative.exercise_date: Reflects an award initially granted on March 9, 2018 that was subject to a performance-based vesting condition which was determined to be satisfied on January 3, 2021. The number of units reported herein includes 820 distribution equivalent units, which vested effective as of December 31, 2020. The remaining 8600 units are subject to an additional time-based vesting condition, pursuant to which 50% of the units will vest annually over two years, beginning on February 27, 2021. The vested profits interest units have no expiration date.

F4 · derivative.expiration_date: Reflects an award initially granted on March 9, 2018 that was subject to a performance-based vesting condition which was determined to be satisfied on January 3, 2021. The number of units reported herein includes 820 distribution equivalent units, which vested effective as of December 31, 2020. The remaining 8600 units are subject to an additional time-based vesting condition, pursuant to which 50% of the units will vest annually over two years, beginning on February 27, 2021. The vested profits interest units have no expiration date.

SEC source: 0001415889-21-000168 · form4-01052021_040143.xml · derivative · entry 2

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 603,899

Underlying: Common Stock · 95,696 shares

Expires not disclosed

F1 · security: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F1 · derivative.exercise_price: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F3 · shares: Reflects an award initially granted on January 1, 2018 that was subject to a performance-based vesting condition which was determined to be satisfied on January 3, 2021. The number of units reported herein includes 8330 distribution equivalent units, which vested effective as of December 31, 2020. The remaining 87366 units are subject to an additional time-based vesting condition, pursuant to which 50% of the units will vest annually over two years, beginning on February 27, 2021. The vested profits interest units have no expiration date.

F3 · derivative.exercise_date: Reflects an award initially granted on January 1, 2018 that was subject to a performance-based vesting condition which was determined to be satisfied on January 3, 2021. The number of units reported herein includes 8330 distribution equivalent units, which vested effective as of December 31, 2020. The remaining 87366 units are subject to an additional time-based vesting condition, pursuant to which 50% of the units will vest annually over two years, beginning on February 27, 2021. The vested profits interest units have no expiration date.

F3 · derivative.expiration_date: Reflects an award initially granted on January 1, 2018 that was subject to a performance-based vesting condition which was determined to be satisfied on January 3, 2021. The number of units reported herein includes 8330 distribution equivalent units, which vested effective as of December 31, 2020. The remaining 87366 units are subject to an additional time-based vesting condition, pursuant to which 50% of the units will vest annually over two years, beginning on February 27, 2021. The vested profits interest units have no expiration date.

SEC source: 0001415889-21-000167 · form4-01052021_040120.xml · derivative · entry 3

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 613,319

Underlying: Common Units · 9,420 shares

Expires not disclosed

F1 · security: Long-Term Incentive Units are profits interest units in the Issuer, of which the Digital Realty Trust, Inc. is the general partner (the "General Partner"). Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F1 · derivative.exercise_price: Long-Term Incentive Units are profits interest units in the Issuer, of which the Digital Realty Trust, Inc. is the general partner (the "General Partner"). Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F4 · shares: Reflects an award initially granted on March 9, 2018 that was subject to a performance-based vesting condition which was determined to be satisfied on January 3, 2021. The number of units reported herein includes 820 distribution equivalent units, which vested effective as of December 31, 2020. The remaining 8600 units are subject to an additional time-based vesting condition, pursuant to which 50% of the units will vest annually over two years, beginning on February 27, 2021. The vested profits interest units have no expiration date.

F4 · derivative.exercise_date: Reflects an award initially granted on March 9, 2018 that was subject to a performance-based vesting condition which was determined to be satisfied on January 3, 2021. The number of units reported herein includes 820 distribution equivalent units, which vested effective as of December 31, 2020. The remaining 8600 units are subject to an additional time-based vesting condition, pursuant to which 50% of the units will vest annually over two years, beginning on February 27, 2021. The vested profits interest units have no expiration date.

F4 · derivative.expiration_date: Reflects an award initially granted on March 9, 2018 that was subject to a performance-based vesting condition which was determined to be satisfied on January 3, 2021. The number of units reported herein includes 820 distribution equivalent units, which vested effective as of December 31, 2020. The remaining 8600 units are subject to an additional time-based vesting condition, pursuant to which 50% of the units will vest annually over two years, beginning on February 27, 2021. The vested profits interest units have no expiration date.

SEC source: 0001415889-21-000167 · form4-01052021_040120.xml · derivative · entry 2

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 603,899

Underlying: Common Units · 95,696 shares

Expires not disclosed

F1 · security: Long-Term Incentive Units are profits interest units in the Issuer, of which the Digital Realty Trust, Inc. is the general partner (the "General Partner"). Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F1 · derivative.exercise_price: Long-Term Incentive Units are profits interest units in the Issuer, of which the Digital Realty Trust, Inc. is the general partner (the "General Partner"). Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F3 · shares: Reflects an award initially granted on January 1, 2018 that was subject to a performance-based vesting condition which was determined to be satisfied on January 3, 2021. The number of units reported herein includes 8330 distribution equivalent units, which vested effective as of December 31, 2020. The remaining 87366 units are subject to an additional time-based vesting condition, pursuant to which 50% of the units will vest annually over two years, beginning on February 27, 2021. The vested profits interest units have no expiration date.

F3 · derivative.exercise_date: Reflects an award initially granted on January 1, 2018 that was subject to a performance-based vesting condition which was determined to be satisfied on January 3, 2021. The number of units reported herein includes 8330 distribution equivalent units, which vested effective as of December 31, 2020. The remaining 87366 units are subject to an additional time-based vesting condition, pursuant to which 50% of the units will vest annually over two years, beginning on February 27, 2021. The vested profits interest units have no expiration date.

F3 · derivative.expiration_date: Reflects an award initially granted on January 1, 2018 that was subject to a performance-based vesting condition which was determined to be satisfied on January 3, 2021. The number of units reported herein includes 8330 distribution equivalent units, which vested effective as of December 31, 2020. The remaining 87366 units are subject to an additional time-based vesting condition, pursuant to which 50% of the units will vest annually over two years, beginning on February 27, 2021. The vested profits interest units have no expiration date.

SEC source: 0001415889-21-000168 · form4-01052021_040143.xml · derivative · entry 1

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 508,203

Underlying: Common Stock · 14,335 shares

Expires not disclosed

F1 · security: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F1 · derivative.exercise_price: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F2 · shares: The units will vest in four equal annual installments beginning on February 27, 2022. The vested profits interest units have no expiration date.

F2 · derivative.exercise_date: The units will vest in four equal annual installments beginning on February 27, 2022. The vested profits interest units have no expiration date.

F2 · derivative.expiration_date: The units will vest in four equal annual installments beginning on February 27, 2022. The vested profits interest units have no expiration date.

SEC source: 0001415889-21-000167 · form4-01052021_040120.xml · derivative · entry 1

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 508,203

Underlying: Common Units · 14,335 shares

Expires not disclosed

F1 · security: Long-Term Incentive Units are profits interest units in the Issuer, of which the Digital Realty Trust, Inc. is the general partner (the "General Partner"). Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F1 · derivative.exercise_price: Long-Term Incentive Units are profits interest units in the Issuer, of which the Digital Realty Trust, Inc. is the general partner (the "General Partner"). Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F2 · shares: The units will vest in four equal annual installments beginning on February 27, 2022. The vested profits interest units have no expiration date.

F2 · derivative.exercise_date: The units will vest in four equal annual installments beginning on February 27, 2022. The vested profits interest units have no expiration date.

F2 · derivative.expiration_date: The units will vest in four equal annual installments beginning on February 27, 2022. The vested profits interest units have no expiration date.

SEC source: 0001415889-20-002022 · form4-08042020_050806.xml · derivative · entry 3

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 493,868

Underlying: Common Stock · 25,200 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: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F3 · derivative.exercise_price: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F2 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F3 · derivative.exercise_date: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F4 · derivative.expiration_date: N/A

SEC source: 0001415889-20-002022 · form4-08042020_050806.xml · nonDerivative · entry 2

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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

F2 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F3 · price: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

SEC source: 0001415889-20-002022 · form4-08042020_050806.xml · nonDerivative · entry 1

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,200

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: The reporting person converted long-term incentive units into common limited partnership units ("Common Units") of the Issuer and subsequently redeemed the Common Units for shares of the common stock of Digital Realty Trust, Inc., a Maryland corporation and the general partner of the Issuer (the "General Partner"), all in accordance with the requirements of the Limited Partnership Agreement of the Issuer.

F2 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F3 · price: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

SEC source: 0001415889-20-002020 · form4-08042020_050845.xml · derivative · entry 7

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 493,868

Underlying: Common Stock · 25,200 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: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F2 · derivative.exercise_price: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F8 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F2 · derivative.exercise_date: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F9 · derivative.expiration_date: N/A

SEC source: 0001415889-20-002020 · form4-08042020_050845.xml · nonDerivative · entry 6

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.73 to $165.11. The reporting person undertakes to provide Digital Realty Trust, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote

SEC source: 0001415889-20-002020 · form4-08042020_050845.xml · nonDerivative · entry 5

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 400

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.52 to $164.32. The reporting person undertakes to provide Digital Realty Trust, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote

SEC source: 0001415889-20-002020 · form4-08042020_050845.xml · nonDerivative · entry 4

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,799

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.44 to $163.39. The reporting person undertakes to provide Digital Realty Trust, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote

SEC source: 0001415889-20-002020 · form4-08042020_050845.xml · nonDerivative · entry 3

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,099

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $161.08 to $162.03. The reporting person undertakes to provide Digital Realty Trust, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-20-002020 · form4-08042020_050845.xml · nonDerivative · entry 2

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,899

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $160 to $161. The reporting person undertakes to provide Digital Realty Trust, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-20-002020 · form4-08042020_050845.xml · nonDerivative · entry 1

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,200

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: The reporting person converted long-term incentive units into common limited partnership units ("Common Units") of Digital Realty Trust, L.P. (the "Operating Partnership"), of which the Issuer is the general partner, and subsequently redeemed the Common Units for shares of the common stock of the Issuer, all in accordance with the requirements of the Limited Partnership Agreement of the Operating Partnership.

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

SEC source: 0001415889-20-001986 · form4-07312020_030713.xml · derivative · entry 3

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 519,068

Underlying: Common Stock · 25,000 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: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F3 · derivative.exercise_price: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F2 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F3 · derivative.exercise_date: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F4 · derivative.expiration_date: N/A

SEC source: 0001415889-20-001986 · form4-07312020_030713.xml · nonDerivative · entry 2

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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

F2 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F3 · price: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

SEC source: 0001415889-20-001986 · form4-07312020_030713.xml · nonDerivative · entry 1

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

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: The reporting person converted long-term incentive units into common limited partnership units ("Common Units") of the Issuer and subsequently redeemed the Common Units for shares of the common stock of Digital Realty Trust, Inc., a Maryland corporation and the general partner of the Issuer (the "General Partner"), all in accordance with the requirements of the Limited Partnership Agreement of the Issuer.

F2 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F3 · price: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

SEC source: 0001415889-20-001988 · form4-07312020_030725.xml · derivative · entry 4

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 519,068

Underlying: Common Stock · 25,000 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: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F2 · derivative.exercise_price: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F5 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F2 · derivative.exercise_date: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F6 · derivative.expiration_date: N/A

SEC source: 0001415889-20-001988 · form4-07312020_030725.xml · nonDerivative · entry 3

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $156.63 to $157.32. The reporting person undertakes to provide Digital Realty Trust, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-20-001988 · form4-07312020_030725.xml · nonDerivative · entry 2

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,960

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $155.61 to $156.60. The reporting person undertakes to provide Digital Realty Trust, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-20-001988 · form4-07312020_030725.xml · nonDerivative · entry 1

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

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: The reporting person converted long-term incentive units into common limited partnership units ("Common Units") of Digital Realty Trust, L.P. (the "Operating Partnership"), of which the Issuer is the general partner, and subsequently redeemed the Common Units for shares of the common stock of the Issuer, all in accordance with the requirements of the Limited Partnership Agreement of the Operating Partnership.

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

SEC source: 0001415889-20-001970 · form4-07292020_040745.xml · derivative · entry 3

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 544,068

Underlying: Common Stock · 25,000 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: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F3 · derivative.exercise_price: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F2 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F3 · derivative.exercise_date: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F4 · derivative.expiration_date: N/A

SEC source: 0001415889-20-001970 · form4-07292020_040745.xml · nonDerivative · entry 2

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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

F2 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F3 · price: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

SEC source: 0001415889-20-001970 · form4-07292020_040745.xml · nonDerivative · entry 1

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

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: The reporting person converted long-term incentive units into common limited partnership units ("Common Units") of the Issuer and subsequently redeemed the Common Units for shares of the common stock of Digital Realty Trust, Inc., a Maryland corporation and the general partner of the Issuer (the "General Partner"), all in accordance with the requirements of the Limited Partnership Agreement of the Issuer.

F2 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F3 · price: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

SEC source: 0001415889-20-001968 · form4-07292020_030721.xml · derivative · entry 4

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 544,068

Underlying: Common Stock · 25,000 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: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F2 · derivative.exercise_price: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F5 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F2 · derivative.exercise_date: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F6 · derivative.expiration_date: N/A

SEC source: 0001415889-20-001968 · form4-07292020_030721.xml · nonDerivative · entry 3

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $150.08 to $151.11. The reporting person undertakes to provide Digital Realty Trust, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-20-001968 · form4-07292020_030721.xml · nonDerivative · entry 2

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,111

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $150.07 to $151.07. The reporting person undertakes to provide Digital Realty Trust, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-20-001968 · form4-07292020_030721.xml · nonDerivative · entry 1

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

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: The reporting person converted long-term incentive units into common limited partnership units ("Common Units") of Digital Realty Trust, L.P. (the "Operating Partnership"), of which the Issuer is the general partner, and subsequently redeemed the Common Units for shares of the common stock of the Issuer, all in accordance with the requirements of the Limited Partnership Agreement of the Operating Partnership.

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

SEC source: 0001415889-20-001649 · form4-06192020_020638.xml · derivative · entry 3

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 569,068

Underlying: Common Stock · 25,000 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: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F3 · derivative.exercise_price: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F2 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F3 · derivative.exercise_date: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F4 · derivative.expiration_date: N/A

SEC source: 0001415889-20-001649 · form4-06192020_020638.xml · nonDerivative · entry 2

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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

F2 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F3 · price: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

SEC source: 0001415889-20-001649 · form4-06192020_020638.xml · nonDerivative · entry 1

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

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: The reporting person converted long-term incentive units into common limited partnership units ("Common Units") of the Issuer and subsequently redeemed the Common Units for shares of the common stock of Digital Realty Trust, Inc., a Maryland corporation and the general partner of the Issuer (the "General Partner"), all in accordance with the requirements of the Limited Partnership Agreement of the Issuer.

F2 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F3 · price: Long-term incentive units are profits interest units in the Issuer, of which Digital Realty Trust, Inc. ("General Partner") is the general partner. Vested profits interest units may be converted into an equal number of common limited partnership ("Common Units") in the Issuer subject to the terms of the Issuer's limited partnership agreement. Common Units are redeemable for cash based on the fair market value of an equivalent numbers of shares of the General Partner's common stock, or, at the election of the General Partner, for an equal number of shares of the General Partner's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

SEC source: 0001415889-20-001651 · form4-06192020_020653.xml · derivative · entry 3

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 569,068

Underlying: Common Stock · 25,000 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: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F2 · derivative.exercise_price: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F3 · shares: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan previously adopted by Mr. Stein.

F2 · derivative.exercise_date: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

F4 · derivative.expiration_date: N/A

SEC source: 0001415889-20-001651 · form4-06192020_020653.xml · nonDerivative · entry 2

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

SEC source: 0001415889-20-001651 · form4-06192020_020653.xml · nonDerivative · entry 1

Stein A William · CIK 0001307117 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

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: The reporting person converted long-term incentive units into common limited partnership units ("Common Units") of Digital Realty Trust, L.P. (the "Operating Partnership"), of which the Issuer is the general partner, and subsequently redeemed the Common Units for shares of the common stock of the Issuer, all in accordance with the requirements of the Limited Partnership Agreement of the Operating Partnership.

F2 · shares: Long-Term Incentive Units are profits interest units in Digital Realty Trust, L.P. ("Operating Partnership"), of which the Issuer is the general partner. Profits interest units may initially not have full parity with common limited partnership units of Operating Partnership ("Common Units") with respect to liquidating distributions; however upon the occurrence of specified events, profits interest units may achieve full parity with Common Units for all purposes. Vested profits interest units that have achieved full parity with Common Units may be converted into an equal number of Common Units on a 1-for-1 basis at any time. Common Units are redeemable for cash based on the FMV of an equivalent number of shares of common stock of the Issuer, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

SEC source: 0001070750-20-000095 · edgardoc.xml · derivative · entry 5

Stein A William · CIK 0001307117 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 79.9735 shares

Expires not disclosed

F5 · derivative.exercise_price: Each share of phantom stock is the economic equivalent of one share of common stock of the Issuer and will be settled in cash on a date selected by the reporting person.

F2 · shares: The deferred stock units were issued in exchange for previously granted phantom stock.

F5 · derivative.exercise_date: Each share of phantom stock is the economic equivalent of one share of common stock of the Issuer and will be settled in cash on a date selected by the reporting person.

F5 · derivative.expiration_date: Each share of phantom stock is the economic equivalent of one share of common stock of the Issuer and will be settled in cash on a date selected by the reporting person.

SEC source: 0001070750-20-000095 · edgardoc.xml · derivative · entry 4

Stein A William · CIK 0001307117 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79.9735

Underlying: Common Stock · 7,238.8831 shares

Expires not disclosed

F5 · derivative.exercise_price: Each share of phantom stock is the economic equivalent of one share of common stock of the Issuer and will be settled in cash on a date selected by the reporting person.

F2 · shares: The deferred stock units were issued in exchange for previously granted phantom stock.

F5 · derivative.exercise_date: Each share of phantom stock is the economic equivalent of one share of common stock of the Issuer and will be settled in cash on a date selected by the reporting person.

F5 · derivative.expiration_date: Each share of phantom stock is the economic equivalent of one share of common stock of the Issuer and will be settled in cash on a date selected by the reporting person.

SEC source: 0001070750-20-000095 · edgardoc.xml · derivative · entry 3

Stein A William · CIK 0001307117 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,916.1619

Underlying: Common Stock · 79.9735 shares

Expires not disclosed

F1 · derivative.exercise_price: Each deferred stock unit represents the right to receive one share of common stock of the Issuer.

F2 · shares: The deferred stock units were issued in exchange for previously granted phantom stock.

F3 · derivative.exercise_date: The deferred stock units are fully vested and will be settled in shares of the Issuer's common stock on a date selected by the reporting person pursuant to the Host Hotels & Resorts, Inc.'s Non-Employee Directors' Deferred Stock Compensation Plan.

F3 · derivative.expiration_date: The deferred stock units are fully vested and will be settled in shares of the Issuer's common stock on a date selected by the reporting person pursuant to the Host Hotels & Resorts, Inc.'s Non-Employee Directors' Deferred Stock Compensation Plan.

SEC source: 0001070750-20-000095 · edgardoc.xml · derivative · entry 2

Stein A William · CIK 0001307117 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,642.883

Underlying: Common Stock · 13,916.5009 shares

Expires not disclosed

F1 · derivative.exercise_price: Each deferred stock unit represents the right to receive one share of common stock of the Issuer.

F4 · shares: The deferred stock units were granted to the director in lieu of an annual stock award.

F3 · derivative.exercise_date: The deferred stock units are fully vested and will be settled in shares of the Issuer's common stock on a date selected by the reporting person pursuant to the Host Hotels & Resorts, Inc.'s Non-Employee Directors' Deferred Stock Compensation Plan.

F3 · derivative.expiration_date: The deferred stock units are fully vested and will be settled in shares of the Issuer's common stock on a date selected by the reporting person pursuant to the Host Hotels & Resorts, Inc.'s Non-Employee Directors' Deferred Stock Compensation Plan.

SEC source: 0001070750-20-000095 · edgardoc.xml · derivative · entry 1

Stein A William · CIK 0001307117 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,726.3821

Underlying: Common Stock · 7,238.8831 shares

Expires not disclosed

F1 · derivative.exercise_price: Each deferred stock unit represents the right to receive one share of common stock of the Issuer.

F2 · shares: The deferred stock units were issued in exchange for previously granted phantom stock.

F3 · derivative.exercise_date: The deferred stock units are fully vested and will be settled in shares of the Issuer's common stock on a date selected by the reporting person pursuant to the Host Hotels & Resorts, Inc.'s Non-Employee Directors' Deferred Stock Compensation Plan.

F3 · derivative.expiration_date: The deferred stock units are fully vested and will be settled in shares of the Issuer's common stock on a date selected by the reporting person pursuant to the Host Hotels & Resorts, Inc.'s Non-Employee Directors' Deferred Stock Compensation Plan.