Melko Charles

SEC source: 0001561894-26-000035 · wk-form4_1772672812.xml · derivative · entry 2

Melko Charles · CIK 0001700743 · CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Indirect · By HASI Management HoldCo LLC

Disclosed balance after: 121,664

Underlying: Common stock, par value $0.01 per share · 34,500 shares

Expires not disclosed

F1 · derivative.exercise_price: 121,664 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 121,664 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended, and the Issuer's 2022 Equity Incentive Plan.

F2 · derivative.exercise_price: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of HA Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F1 · derivative.exercise_date: 121,664 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 121,664 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended, and the Issuer's 2022 Equity Incentive Plan.

F2 · derivative.exercise_date: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of HA Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F3 · derivative.expiration_date: N/A

F4 · balance_after: Previously included in this total were 4,517 LTIP Units which did not vest, as certain performance targets for the performance period ended December 31, 2025 were not met.

F5 · ownership.nature: These LTIP Units are held by HASI Management HoldCo LLC ("HoldCo LLC"). The Reporting Person is a member of HoldCo LLC. The LTIP Units reported represent only the number of LTIP Units in which the Reporting Person has a pecuniary interest in accordance with his proportionate interest in HoldCo LLC. The Reporting Person is voluntarily reporting his proportionate interest in HoldCo LLC's ownership of LTIP Units. The Reporting Person disclaims beneficial ownership other than to the extent of his pecuniary interest.

SEC source: 0001561894-25-000023 · wk-form4_1741049728.xml · derivative · entry 2

Melko Charles · CIK 0001700743 · CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Indirect · By HASI Management HoldCo LLC

Disclosed balance after: 91,681

Underlying: Common stock, par value $0.01 per share · 33,000 shares

Expires not disclosed

F1 · derivative.exercise_price: 91,681 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 91,681 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended, and the Issuer's 2022 Equity Incentive Plan.

F2 · derivative.exercise_price: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F1 · derivative.exercise_date: 91,681 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 91,681 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended, and the Issuer's 2022 Equity Incentive Plan.

F2 · derivative.exercise_date: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F3 · derivative.expiration_date: N/A

F4 · balance_after: Previously included in this total were 3,664 LTIP Units which did not vest, as certain performance targets for the performance period ended December 31, 2024 were not met.

F5 · ownership.nature: These LTIP Units are held by HASI Management HoldCo LLC ("HoldCo LLC"). The Reporting Person is a member of HoldCo LLC. The LTIP Units reported represent only the number of LTIP Units in which the Reporting Person has a pecuniary interest in accordance with his proportionate interest in HoldCo LLC. The Reporting Person is voluntarily reporting his proportionate interest in HoldCo LLC's ownership of LTIP Units. The Reporting Person disclaims beneficial ownership other than to the extent of his pecuniary interest.

SEC source: 0001561894-24-000022 · wk-form4_1709586742.xml · derivative · entry 2

Melko Charles · CIK 0001700743 · CAO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Indirect · By HASI Management HoldCo LLC

Disclosed balance after: 62,345

Underlying: Common stock, par value $0.01 per share · 21,038 shares

Expires not disclosed

F1 · derivative.exercise_price: 62,345 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 62,345 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended, and the Issuer's 2022 Equity Incentive Plan.

F2 · derivative.exercise_price: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F1 · derivative.exercise_date: 62,345 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 62,345 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended, and the Issuer's 2022 Equity Incentive Plan.

F2 · derivative.exercise_date: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F3 · derivative.expiration_date: N/A

F4 · balance_after: Previously included in this total were 2,388 LTIP Units which did not vest, as certain performance targets for the performance period ended December 31, 2023 were not met.

F5 · ownership.nature: These LTIP Units are held by HASI Management HoldCo LLC ("HoldCo LLC"). The Reporting Person is a member of HoldCo LLC. The LTIP Units reported represent only the number of LTIP Units in which the Reporting Person has a pecuniary interest in accordance with his proportionate interest in HoldCo LLC. The Reporting Person is voluntarily reporting his proportionate interest in HoldCo LLC's ownership of LTIP Units. The Reporting Person disclaims beneficial ownership other than to the extent of his pecuniary interest.

SEC source: 0001561894-23-000098 · wf-form4_169264885704652.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · CAO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,563

SEC source: 0001561894-23-000035 · wf-form4_167813818319723.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · CAO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,563

F1 · shares: Consists of shares of Common Stock withheld by the issuer, with approval of the issuer's Board of Directors, in order to satisfy the tax withholding obligation of the reporting person in connection with thevesting of 13,000 shares of Common Stock.

F2 · price: Represents the closing price of the Common Stock on March 3, 2023, the first trading day on or prior to the vesting date.

SEC source: 0001561894-23-000030 · wf-form4_167787983006365.xml · derivative · entry 2

Melko Charles · CIK 0001700743 · CAO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Indirect · By HASI Management HoldCo LLC

Disclosed balance after: 43,695

Underlying: Common stock, par value $0.01 per share · 17,833 shares

Expires not disclosed

F1 · derivative.exercise_price: 43,695 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 43,695 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended, and the Issuer's 2022 Equity Incentive Plan.

F2 · derivative.exercise_price: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F1 · derivative.exercise_date: 43,695 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 43,695 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended, and the Issuer's 2022 Equity Incentive Plan.

F2 · derivative.exercise_date: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F3 · derivative.expiration_date: N/A

F4 · balance_after: Previously included in this total were 1,817 LTIP Units which did not vest, as certain performance targets for the performance period ended December 31, 2022 were not met.

F5 · ownership.nature: These LTIP Units are held by HASI Management HoldCo LLC ("HoldCo LLC"). The Reporting Person is a member of HoldCo LLC. The LTIP Units reported represent only the number of LTIP Units in which the Reporting Person has a pecuniary interest in accordance with his proportionate interest in HoldCo LLC. The Reporting Person is voluntarily reporting his proportionate interest in HoldCo LLC's ownership of LTIP Units. The Reporting Person disclaims beneficial ownership other than to the extent of his pecuniary interest.

SEC source: 0001561894-22-000080 · wf-form4_166691329317005.xml · derivative · entry 2

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By HASI Management HoldCo LLC

Disclosed balance after: 27,679

Underlying: Common stock, par value $0.01 per share · 10,000 shares

Expires not disclosed

F1 · derivative.exercise_price: 27,679 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 17,679 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended.

F2 · derivative.exercise_price: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F1 · derivative.exercise_date: 27,679 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 17,679 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended.

F2 · derivative.exercise_date: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F3 · derivative.expiration_date: N/A

F4 · ownership.nature: These LTIP Units are held by HASI Management HoldCo LLC ("HoldCo LLC"). The Reporting Person is a member of HoldCo LLC. The LTIP Units reported represent only the number of LTIP Units in which the Reporting Person has a pecuniary interest in accordance with his proportionate interest in HoldCo LLC. The Reporting Person is voluntarily reporting his proportionate interest in HoldCo LLC's ownership of LTIP Units. The Reporting Person disclaims beneficial ownership other than to the extent of his pecuniary interest.

SEC source: 0001561894-22-000019 · wf-form4_164849827939227.xml · derivative · entry 2

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By HASI Management HoldCo LLC

Disclosed balance after: 17,679

Underlying: Common stock, par value $0.01 per share · 5,495 shares

Expires not disclosed

F1 · derivative.exercise_price: 17,679 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 17,679 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended.

F2 · derivative.exercise_price: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F1 · derivative.exercise_date: 17,679 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 17,679 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended.

F2 · derivative.exercise_date: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F3 · derivative.expiration_date: N/A

F4 · ownership.nature: These LTIP Units are held by HASI Management HoldCo LLC ("HoldCo LLC"). The Reporting Person is a member of HoldCo LLC. The LTIP Units reported represent only the number of LTIP Units in which the Reporting Person has a pecuniary interest in accordance with his proportionate interest in HoldCo LLC. The Reporting Person is voluntarily reporting his proportionate interest in HoldCo LLC's ownership of LTIP Units. The Reporting Person disclaims beneficial ownership other than to the extent of his pecuniary interest.

SEC source: 0001561894-22-000012 · wf-form4_164686741886148.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,893

F1 · shares: Consists of shares of Common Stock withheld by the issuer, with approval of the issuer's Board of Directors, in order to satisfy the tax withholding obligation of the reporting person in connection with the vesting of 4,886 shares of Common Stock.

F2 · price: Represents the closing price of the Common Stock on March 4, 2022, the first trading day on or prior to the vesting date.

SEC source: 0001561894-21-000095 · wf-form4_162136983153222.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,255

F1 · shares: Consists of shares of Common Stock withheld by the issuer, with approval of the issuer's Board of Directors, in order to satisfy the tax withholding obligation of the reporting person in connection with the vesting of 4,288 shares of Common Stock.

F2 · price: Represents the closing price of the Common Stock on May 14, 2021, the first trading day on or prior to the vesting date.

SEC source: 0001561894-21-000060 · wf-form4_161765823526775.xml · derivative · entry 2

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By HASI Management HoldCo LLC

Disclosed balance after: 12,184

Underlying: Common stock, par value $0.01 per share · 7,404 shares

Expires not disclosed

F1 · derivative.exercise_price: 12,184 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 12,184 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended.

F2 · derivative.exercise_price: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F1 · derivative.exercise_date: 12,184 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 12,184 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended.

F2 · derivative.exercise_date: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F3 · derivative.expiration_date: N/A

F4 · ownership.nature: These LTIP Units are held by HASI Management HoldCo LLC ("HoldCo LLC"). The Reporting Person is a member of HoldCo LLC. The LTIP Units reported represent only the number of LTIP Units in which the Reporting Person has a pecuniary interest in accordance with his proportionate interest in HoldCo LLC. The Reporting Person is voluntarily reporting his proportionate interest in HoldCo LLC's ownership of LTIP Units. The Reporting Person disclaims beneficial ownership other than to the extent of his pecuniary interest.

SEC source: 0001561894-21-000028 · wf-form4_161532661676618.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,327

F1 · shares: Consists of shares of Common Stock withheld by the issuer, with approval of the issuer's Board of Directors, in order to satisfy the tax withholding obligation of the reporting person in connection with the vesting of 3,273 shares of Common Stock.

F2 · price: Represents the closing price of the Common Stock on March 5, 2021.

SEC source: 0001561894-20-000104 · wf-form4_158992703427241.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,049

F1 · shares: Consists of shares of Common Stock withheld by the issuer, with approval of the issuer's Board of Directors, in order to satisfy the tax withholding obligation of the reporting person in connection with the vesting of 4,009 shares of Common Stock.

F2 · price: Represents the closing price of the Common Stock on May 15, 2020

SEC source: 0001561894-20-000084 · wf-form4_158595139072364.xml · derivative · entry 2

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By HASI Management HoldCo LLC

Disclosed balance after: 4,780

Underlying: Common stock, par value $0.01 per share · 4,780 shares

Expires not disclosed

F1 · derivative.exercise_price: 4,780 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 4,780 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended. Of these 4,780 LTIP Units, 1,592 are scheduled to vest in equal annual installments of one-third of the full amount on May 15, 2021, March 5, 2022, and March 5, 2023, subject to continued employment by the Reporting Person and 3,188 represent the maximum amount of LTIP Units that can vest on March 5, 2023 contingent upon the achievement of certain performance criteria ("Vested LTIP Units").

F2 · derivative.exercise_price: Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.

F1 · derivative.exercise_date: 4,780 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 4,780 long-term incentive plan units ("LTIP Units") in the Partnership. The LTIP Units were granted to the Reporting Person under the Issuer's 2013 Equity Incentive Plan, as amended. Of these 4,780 LTIP Units, 1,592 are scheduled to vest in equal annual installments of one-third of the full amount on May 15, 2021, March 5, 2022, and March 5, 2023, subject to continued employment by the Reporting Person and 3,188 represent the maximum amount of LTIP Units that can vest on March 5, 2023 contingent upon the achievement of certain performance criteria ("Vested LTIP Units").

F3 · derivative.expiration_date: N/A

F4 · ownership.nature: These LTIP Units are held by HASI Management HoldCo LLC ("HoldCo LLC"). The Reporting Person is a member of HoldCo LLC. The LTIP Units reported represent only the number of LTIP Units in which the Reporting Person has a pecuniary interest in accordance with his proportionate interest in HoldCo LLC. The Reporting Person is voluntarily reporting his proportionate interest in HoldCo LLC's ownership of LTIP Units. The Reporting Person disclaims beneficial ownership other than to the extent of his pecuniary interest.

SEC source: 0001561894-20-000042 · wf-form4_158414166598844.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,192

F1 · price: On March 11, 2020, the reporting person was granted shares of restricted Common Stock that were issued pursuant to the 2013 Hannon Armstrong Sustainable Infrastructure Capital Inc. Equity Incentive Plan, as amended (the "Plan"). The shares vest on May 15, 2021.

SEC source: 0001561894-20-000032 · wf-form4_158379276078045.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,904

F1 · shares: Consists of shares of Common Stock withheld by the issuer, with approval of the issuer's Board of Directors, in order to satisfy the tax withholding obligation of the reporting person in connection with the vesting of 368 shares of Common Stock.

F2 · price: Represents the closing price of the Common Stock on March 5, 2020.

SEC source: 0001561894-19-000125 · wf-form4_157420371096406.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,061

F1 · kind: Consists of shares of Common Stock withheld by the issuer, with approval of the issuer's Board of Directors, in order to satisfy the tax withholding obligation of the reporting person in connection with the vesting of 5,000 shares of Common Stock.

F2 · price: Represents the closing price of the Common Stock on November 15, 2019.

SEC source: 0001561894-19-000099 · wf-form4_156512814625325.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,727

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $27.11 to $27.12, inclusive on August 6, 2019. The reporting person undertakes to provide Hannon Armstrong Sustainable Infrastructure Capital, 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 purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001561894-19-000071 · wf-form4_155804263117389.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,679

F1 · shares: Consists of shares of Common Stock withheld by the issuer, with approval of the issuer's Board of Directors, in order to satisfy the tax withholding obligation of the reporting person in connection with the vesting of 2,758 shares of Common Stock.

F2 · price: Represents the closing price of the Common Stock on May 15, 2019.

SEC source: 0001561894-19-000050 · wf-form4_155432675286381.xml · nonDerivative · entry 2

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,707

F2 · shares: On April 1, 2019, the reporting person was awarded up to a maximum of 4,188 Restricted Stock Units ("RSUs") under the Plan, which represent the right to receive one share of Common Stock of the issuer for each RSU at vesting. The RSUs vest on March 5, 2022 if certain absolute and relative stockholder return targets are achieved on or prior to such date. The number of RSUs to be awarded to the reporting person range from zero to 4,188 based on the Company's performance relative to the return targets. The RSUs reported on this Form 4 assume the reporting person receives the maximum possible grant. Dividend equivalents will accrue on the RSUs from the grant date, but the reporting person is not entitled to receive the dividend equivalents until the RSUs vest. The grant is being reported here for informational purposes only.

SEC source: 0001561894-19-000050 · wf-form4_155432675286381.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,519

F1 · price: On April 1, 2019, the reporting person was granted 2,092 shares of restricted Common Stock that were issued pursuant to the Plan. The shares will vest in equal installments of one-third of the full amount on May 15, 2020, March 5, 2021 and March 5, 2022.

SEC source: 0001561894-19-000033 · wf-form4_155268428041390.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,427

F1 · price: On March 13, 2019, the reporting person was granted 3,312 shares of restricted Common Stock that were issued pursuant to the 2013 Hannon Armstrong Sustainable Infrastructure Capital Inc. Equity Incentive Plan, as amended. The shares vest on May 15, 2020.

SEC source: 0001561894-19-000026 · wf-form4_155199592366444.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,115

F1 · shares: Consists of shares of Common Stock withheld by the issuer, with approval of the issuer's Board of Directors, in order to satisfy the tax withholding obligation of the reporting person in connection with the vesting of 2,302 shares of Common Stock.

F2 · price: Represents the closing price of the Common Stock on March 5, 2019.

SEC source: 0001561894-18-000107 · wf-form4_154473595400716.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,004

F1 · price: On December 11, 2018, the reporting person was granted 13,000 shares of restricted Common Stock that were issued pursuant to the 2013 Hannon Armstrong Sustainable Infrastructure Capital Inc. Equity Incentive Plan, as amended. The shares vest on March 5, 2023.

SEC source: 0001561894-18-000052 · wf-form4_152305133358911.xml · nonDerivative · entry 3

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,004

F3 · price: On April 4, 2018, the reporting person was awarded up to a maximum of 2,208 Restricted Stock Units ("RSUs") under the Plan, which represent the right to receive one share of Common Stock of the issuer for each RSU at vesting. The RSUs vest on March 5, 2021 if certain absolute and relative stockholder return targets are achieved on or prior to such date. The number of RSUs to be awarded to the reporting person range from zero to 2,208 based on the Company's performance relative to the return targets. The RSUs reported on this Form 4 assume the reporting person receives the maximum possible grant. Dividend equivalents will accrue on the RSUs from the grant date, but the reporting person is not entitled to receive the dividend equivalents until the RSUs vest. The grant is being reported here for informational purposes only.

SEC source: 0001561894-18-000052 · wf-form4_152305133358911.xml · nonDerivative · entry 2

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,796

F2 · price: On April 4, 2018, the reporting person was granted 1,104 shares of restricted Common Stock that were issued pursuant to the Plan. The shares will vest in equal installments of one-third of the full amount on May 15, 2019, March 5, 2020 and March 5, 2021.

SEC source: 0001561894-18-000052 · wf-form4_152305133358911.xml · nonDerivative · entry 1

Melko Charles · CIK 0001700743 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,692

F1 · price: On April 4, 2018, the reporting person was granted 2,390 and 5,000 shares of restricted Common Stock that were issued pursuant to the 2013 Hannon Armstrong Sustainable Infrastructure Capital Inc. Equity Incentive Plan, as amended (the "Plan"). The shares vest on May 15, 2019 and November 15, 2019, respectively.