ARRY

SEC source: 0001820721-21-000032 · wf-form4_162396648130076.xml · nonDerivative · entry 1

Corio Ron P. · CIK 0001827803 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,003

F1 · shares: Represents shares of common stock issuable pursuant to a restricted stock unit award that will vest in full on the first anniversary of the grant date.

SEC source: 0000899243-21-013473 · doc4.xml · nonDerivative · entry 2

ATI Investment Parent, LLC · CIK 0001827785 · 10% owner

BROOKFIELD ASSET MANAGEMENT INC. · CIK 0001001085 · 10% owner

Oaktree Power Opportunities Fund IV, L.P. · CIK 0001622599 · 10% owner

Oaktree Power Opportunities Fund IV (Parallel), L.P. · CIK 0001701705 · 10% owner

Oaktree ATI Investors, L.P. · CIK 0001676821 · 10% owner

OAKTREE CAPITAL MANAGEMENT LP · CIK 0000949509 · 10% owner

Oaktree Capital Group, LLC · CIK 0001403528 · 10% owner

Atlas OCM Holdings, LLC · CIK 0001790787 · 10% owner

Oaktree Capital Group Holdings, L.P. · CIK 0001403527 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · kind: Represents Common Stock disposed of in connection with the Public Offering. These shares of common stock were disposed at a price per share of $27.23, which is the public offering price per share less underwriting discount.

F2 · shares: Represents Common Stock disposed of in connection with the Public Offering. These shares of common stock were disposed at a price per share of $27.23, which is the public offering price per share less underwriting discount.

F3 · balance_after: This Form 4 is being filed jointly by (each, a "Reporting Person" and, collectively, the "Reporting Persons") (i) Oaktree Power Opportunities Fund IV, L.P. (the "Main Fund"); (ii) Oaktree Power Opportunities Fund IV (Parallel), L.P. (the "Parallel Fund"); (iii) Oaktree ATI Investors, L.P. (the "Co-Invest Fund"); (iv) Oaktree Capital Management, L.P. ("OCM"); (v) Oaktree Capital Group, LLC ("OCG"); (vi) Atlas OCM Holdings LLC ("Atlas OCM"); (vii) Brookfield Asset Management, Inc. ("Brookfield"); and (viii) Oaktree Capital Group Holdings, L.P. ("OCGH LP").

F4 · balance_after: The Main Fund, the Parallel Fund and the Co-Invest Fund are together the controlling member of Parent. We refer to the Main Fund, the Parallel Fund and the Co-Invest Fund, collectively, as the "Oaktree Funds." OCM is the investment manager of each of the Oaktree Funds. As a result, each of the Oaktree Funds and OCM may be deemed to have beneficial ownership of the shares owned by Parent. OCM's asset management business is indirectly controlled by OCG and Atlas OCM. As of March 31, 2020, approximately 61.8% of OCM's business is indirectly owned by Brookfield and the remaining approximately 38.2% is owned by current and former OCM executives and employees. Brookfield's ownership interest in OCM's business is held through OCG, Atlas OCM and other holding entities.

F5 · balance_after: The current and former OCM executives and employees hold their interests through a separate entity, OCGH LP. The board of directors of OCG and of Atlas OCM is currently comprised of: (i) five Oaktree senior executives, Howard S. Marks, Bruce A. Karsh, Jay S. Wintrob, John B Frank, and Sheldon M. Stone; (ii) three independent directors, Stephen J. Gilbert, D. Richard Masson, and Marna C. Whittington; and (iii) two Brookfield senior executives, Justin B. Beber and J. Bruce Flatt.

F6 · balance_after: Each of the Reporting Persons expressly disclaims beneficial ownership of the equity securities reported herein, except to the extent of their respective pecuniary interests therein, and the filing of this Form 4 shall not be construed as an admission that any such Reporting Person is the beneficial owner of any equity securities covered by this Form 4.

F7 · balance_after: The reporting persons are jointly filing this Form 4 pursuant to Rule 16a-3(j) under the Exchange Act.

F3 · ownership.direct: This Form 4 is being filed jointly by (each, a "Reporting Person" and, collectively, the "Reporting Persons") (i) Oaktree Power Opportunities Fund IV, L.P. (the "Main Fund"); (ii) Oaktree Power Opportunities Fund IV (Parallel), L.P. (the "Parallel Fund"); (iii) Oaktree ATI Investors, L.P. (the "Co-Invest Fund"); (iv) Oaktree Capital Management, L.P. ("OCM"); (v) Oaktree Capital Group, LLC ("OCG"); (vi) Atlas OCM Holdings LLC ("Atlas OCM"); (vii) Brookfield Asset Management, Inc. ("Brookfield"); and (viii) Oaktree Capital Group Holdings, L.P. ("OCGH LP").

F4 · ownership.direct: The Main Fund, the Parallel Fund and the Co-Invest Fund are together the controlling member of Parent. We refer to the Main Fund, the Parallel Fund and the Co-Invest Fund, collectively, as the "Oaktree Funds." OCM is the investment manager of each of the Oaktree Funds. As a result, each of the Oaktree Funds and OCM may be deemed to have beneficial ownership of the shares owned by Parent. OCM's asset management business is indirectly controlled by OCG and Atlas OCM. As of March 31, 2020, approximately 61.8% of OCM's business is indirectly owned by Brookfield and the remaining approximately 38.2% is owned by current and former OCM executives and employees. Brookfield's ownership interest in OCM's business is held through OCG, Atlas OCM and other holding entities.

F5 · ownership.direct: The current and former OCM executives and employees hold their interests through a separate entity, OCGH LP. The board of directors of OCG and of Atlas OCM is currently comprised of: (i) five Oaktree senior executives, Howard S. Marks, Bruce A. Karsh, Jay S. Wintrob, John B Frank, and Sheldon M. Stone; (ii) three independent directors, Stephen J. Gilbert, D. Richard Masson, and Marna C. Whittington; and (iii) two Brookfield senior executives, Justin B. Beber and J. Bruce Flatt.

F6 · ownership.direct: Each of the Reporting Persons expressly disclaims beneficial ownership of the equity securities reported herein, except to the extent of their respective pecuniary interests therein, and the filing of this Form 4 shall not be construed as an admission that any such Reporting Person is the beneficial owner of any equity securities covered by this Form 4.

F7 · ownership.direct: The reporting persons are jointly filing this Form 4 pursuant to Rule 16a-3(j) under the Exchange Act.

SEC source: 0000899243-21-013473 · doc4.xml · nonDerivative · entry 1

ATI Investment Parent, LLC · CIK 0001827785 · 10% owner

BROOKFIELD ASSET MANAGEMENT INC. · CIK 0001001085 · 10% owner

Oaktree Power Opportunities Fund IV, L.P. · CIK 0001622599 · 10% owner

Oaktree Power Opportunities Fund IV (Parallel), L.P. · CIK 0001701705 · 10% owner

Oaktree ATI Investors, L.P. · CIK 0001676821 · 10% owner

OAKTREE CAPITAL MANAGEMENT LP · CIK 0000949509 · 10% owner

Oaktree Capital Group, LLC · CIK 0001403528 · 10% owner

Atlas OCM Holdings, LLC · CIK 0001790787 · 10% owner

Oaktree Capital Group Holdings, L.P. · CIK 0001403527 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,475,457

F1 · kind: Represents the redemption of a portion of the ATI Investment Parent, LLC ("Parent") interests of certain Parent unitholders in exchange for the Array Technologies, Inc.'s common stock ("Common Stock") held directly by Parent, immediately prior to the consummation of the public offering of Common Stock, which closed on March 23, 2021 (the "Public Offering").

F1 · shares: Represents the redemption of a portion of the ATI Investment Parent, LLC ("Parent") interests of certain Parent unitholders in exchange for the Array Technologies, Inc.'s common stock ("Common Stock") held directly by Parent, immediately prior to the consummation of the public offering of Common Stock, which closed on March 23, 2021 (the "Public Offering").

F3 · balance_after: This Form 4 is being filed jointly by (each, a "Reporting Person" and, collectively, the "Reporting Persons") (i) Oaktree Power Opportunities Fund IV, L.P. (the "Main Fund"); (ii) Oaktree Power Opportunities Fund IV (Parallel), L.P. (the "Parallel Fund"); (iii) Oaktree ATI Investors, L.P. (the "Co-Invest Fund"); (iv) Oaktree Capital Management, L.P. ("OCM"); (v) Oaktree Capital Group, LLC ("OCG"); (vi) Atlas OCM Holdings LLC ("Atlas OCM"); (vii) Brookfield Asset Management, Inc. ("Brookfield"); and (viii) Oaktree Capital Group Holdings, L.P. ("OCGH LP").

F4 · balance_after: The Main Fund, the Parallel Fund and the Co-Invest Fund are together the controlling member of Parent. We refer to the Main Fund, the Parallel Fund and the Co-Invest Fund, collectively, as the "Oaktree Funds." OCM is the investment manager of each of the Oaktree Funds. As a result, each of the Oaktree Funds and OCM may be deemed to have beneficial ownership of the shares owned by Parent. OCM's asset management business is indirectly controlled by OCG and Atlas OCM. As of March 31, 2020, approximately 61.8% of OCM's business is indirectly owned by Brookfield and the remaining approximately 38.2% is owned by current and former OCM executives and employees. Brookfield's ownership interest in OCM's business is held through OCG, Atlas OCM and other holding entities.

F5 · balance_after: The current and former OCM executives and employees hold their interests through a separate entity, OCGH LP. The board of directors of OCG and of Atlas OCM is currently comprised of: (i) five Oaktree senior executives, Howard S. Marks, Bruce A. Karsh, Jay S. Wintrob, John B Frank, and Sheldon M. Stone; (ii) three independent directors, Stephen J. Gilbert, D. Richard Masson, and Marna C. Whittington; and (iii) two Brookfield senior executives, Justin B. Beber and J. Bruce Flatt.

F6 · balance_after: Each of the Reporting Persons expressly disclaims beneficial ownership of the equity securities reported herein, except to the extent of their respective pecuniary interests therein, and the filing of this Form 4 shall not be construed as an admission that any such Reporting Person is the beneficial owner of any equity securities covered by this Form 4.

F7 · balance_after: The reporting persons are jointly filing this Form 4 pursuant to Rule 16a-3(j) under the Exchange Act.

F3 · ownership.direct: This Form 4 is being filed jointly by (each, a "Reporting Person" and, collectively, the "Reporting Persons") (i) Oaktree Power Opportunities Fund IV, L.P. (the "Main Fund"); (ii) Oaktree Power Opportunities Fund IV (Parallel), L.P. (the "Parallel Fund"); (iii) Oaktree ATI Investors, L.P. (the "Co-Invest Fund"); (iv) Oaktree Capital Management, L.P. ("OCM"); (v) Oaktree Capital Group, LLC ("OCG"); (vi) Atlas OCM Holdings LLC ("Atlas OCM"); (vii) Brookfield Asset Management, Inc. ("Brookfield"); and (viii) Oaktree Capital Group Holdings, L.P. ("OCGH LP").

F4 · ownership.direct: The Main Fund, the Parallel Fund and the Co-Invest Fund are together the controlling member of Parent. We refer to the Main Fund, the Parallel Fund and the Co-Invest Fund, collectively, as the "Oaktree Funds." OCM is the investment manager of each of the Oaktree Funds. As a result, each of the Oaktree Funds and OCM may be deemed to have beneficial ownership of the shares owned by Parent. OCM's asset management business is indirectly controlled by OCG and Atlas OCM. As of March 31, 2020, approximately 61.8% of OCM's business is indirectly owned by Brookfield and the remaining approximately 38.2% is owned by current and former OCM executives and employees. Brookfield's ownership interest in OCM's business is held through OCG, Atlas OCM and other holding entities.

F5 · ownership.direct: The current and former OCM executives and employees hold their interests through a separate entity, OCGH LP. The board of directors of OCG and of Atlas OCM is currently comprised of: (i) five Oaktree senior executives, Howard S. Marks, Bruce A. Karsh, Jay S. Wintrob, John B Frank, and Sheldon M. Stone; (ii) three independent directors, Stephen J. Gilbert, D. Richard Masson, and Marna C. Whittington; and (iii) two Brookfield senior executives, Justin B. Beber and J. Bruce Flatt.

F6 · ownership.direct: Each of the Reporting Persons expressly disclaims beneficial ownership of the equity securities reported herein, except to the extent of their respective pecuniary interests therein, and the filing of this Form 4 shall not be construed as an admission that any such Reporting Person is the beneficial owner of any equity securities covered by this Form 4.

F7 · ownership.direct: The reporting persons are jointly filing this Form 4 pursuant to Rule 16a-3(j) under the Exchange Act.

SEC source: 0000899243-21-011615 · doc4.xml · derivative · entry 1

Fusaro James MacMillan · CIK 0001390022 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,702

Underlying: Common Stock, par value $0.001 per share · 4,702 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

SEC source: 0000899243-21-011621 · doc4.xml · derivative · entry 1

Cheraso Jennifer K. · CIK 0001828184 · Chief Human Resources Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 940

Underlying: Common Stock, par value $0.001 per share · 940 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

SEC source: 0000899243-21-011618 · doc4.xml · derivative · entry 1

MacVane Charlotte A. · CIK 0001828175 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 984

Underlying: Common Stock, par value $0.001 per share · 984 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

SEC source: 0000899243-21-011616 · doc4.xml · derivative · entry 1

Creasy Lucas D. · CIK 0001827786 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 642

Underlying: Common Stock, par value $0.001 per share · 642 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

SEC source: 0000899243-21-011610 · doc4.xml · derivative · entry 1

Krantz Jeffrey P. · CIK 0001828190 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,447

Underlying: Common Stock, par value $0.001 per share · 1,447 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

SEC source: 0000899243-21-011609 · doc4.xml · derivative · entry 1

Patel Nipul M. · CIK 0001827799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,356

Underlying: Common Stock, par value $0.001 per share · 1,356 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted stock units rather than cash.

SEC source: 0000899243-21-011608 · doc4.xml · derivative · entry 1

Bolland Stuart M. · CIK 0001827739 · Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,230

Underlying: Common Stock, par value $0.001 per share · 1,230 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted sock units rather than cash.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted sock units rather than cash.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 12, 2021. The grant date value of the restricted stock units represents a portion of the calendar year 2020 annual bonus payable to the Reporting Person that was determined to be paid in restricted sock units rather than cash.

SEC source: 0000899243-21-009957 · doc4.xml · derivative · entry 1

Fusaro James MacMillan · CIK 0001390022 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,745

Underlying: Common Stock, par value $0.001 per share · 36,745 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

SEC source: 0000899243-21-009959 · doc4.xml · derivative · entry 1

Cheraso Jennifer K. · CIK 0001828184 · Chief Human Resources Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,724

Underlying: Common Stock, par value $0.001 per share · 4,724 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

SEC source: 0000899243-21-009955 · doc4.xml · derivative · entry 1

Patel Nipul M. · CIK 0001827799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,974

Underlying: Common Stock, par value $0.001 per share · 9,974 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

SEC source: 0000899243-21-009954 · doc4.xml · derivative · entry 1

Creasy Lucas D. · CIK 0001827786 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,575

Underlying: Common Stock, par value $0.001 per share · 1,575 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

SEC source: 0000899243-21-009952 · doc4.xml · derivative · entry 1

MacVane Charlotte A. · CIK 0001828175 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,349

Underlying: Common Stock, par value $0.001 per share · 7,349 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

SEC source: 0000899243-21-009950 · doc4.xml · derivative · entry 1

Krantz Jeffrey P. · CIK 0001828190 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,236

Underlying: Common Stock, par value $0.001 per share · 10,236 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

SEC source: 0000899243-21-009949 · doc4.xml · derivative · entry 1

Bolland Stuart M. · CIK 0001827739 · Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,299

Underlying: Common Stock, par value $0.001 per share · 6,299 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of March 2, 2021.

SEC source: 0000899243-20-032931 · doc4.xml · nonDerivative · entry 1

ATI Investment Parent, LLC · CIK 0001827785 · 10% owner

BROOKFIELD ASSET MANAGEMENT INC. · CIK 0001001085 · 10% owner

Oaktree Power Opportunities Fund IV, L.P. · CIK 0001622599 · 10% owner

Oaktree Power Opportunities Fund IV (Parallel), L.P. · CIK 0001701705 · 10% owner

Oaktree ATI Investors, L.P. · CIK 0001676821 · 10% owner

OAKTREE CAPITAL MANAGEMENT LP · CIK 0000949509 · 10% owner

Oaktree Capital Group, LLC · CIK 0001403528 · 10% owner

Atlas OCM Holdings, LLC · CIK 0001790787 · 10% owner

Oaktree Capital Group Holdings, L.P. · CIK 0001403527 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,713,217

F1 · kind: Represents common stock disposed of in connection with the public offering of Array Technologies, Inc.'s common stock, which closed on December 7, 2020. These shares of common stock were disposed at a price per share of $33.95, which is the public offering price per share less underwriting discount.

F1 · shares: Represents common stock disposed of in connection with the public offering of Array Technologies, Inc.'s common stock, which closed on December 7, 2020. These shares of common stock were disposed at a price per share of $33.95, which is the public offering price per share less underwriting discount.

F2 · balance_after: This Form 4 is being filed jointly by (each, a "Reporting Person" and, collectively, the "Reporting Persons") (i) Oaktree Power Opportunities Fund IV, L.P. (the "Main Fund"); (ii) Oaktree Power Opportunities Fund IV (Parallel), L.P. (the "Parallel Fund"); (iii) Oaktree ATI Investors, L.P. (the "Co-Invest Fund"); (iv) Oaktree Capital Management, L.P. ("OCM"); (v) Oaktree Capital Group, LLC ("OCG"); (vi) Atlas OCM Holdings LLC ("Atlas OCM"); (vii) Brookfield Asset Management, Inc. ("Brookfield"); and (viii) Oaktree Capital Group Holdings, L.P. ("OCGH LP").

F3 · balance_after: The Main Fund, the Parallel Fund and the Co-Invest Fund are together the controlling member of ATI Investment Parent, LLC ("Parent"). We refer to the Main Fund, the Parallel Fund and the Co-Invest Fund, collectively, as the "Oaktree Funds." OCM is the investment manager of each of the Oaktree Funds. As a result, each of the Oaktree Funds and OCM may be deemed to have beneficial ownership of the shares owned by Parent. OCM's asset management business is indirectly controlled by OCG and Atlas OCM. As of March 31, 2020, approximately 61.8% of OCM's business is indirectly owned by Brookfield and the remaining approximately 38.2% is owned by current and former OCM executives and employees. Brookfield's ownership interest in OCM's business is held through OCG, Atlas OCM and other holding entities.

F4 · balance_after: The current and former OCM executives and employees hold their interests through a separate entity, OCGH LP. The board of directors of OCG and of Atlas OCM is currently comprised of: (i) five Oaktree senior executives, Howard S. Marks, Bruce A. Karsh, Jay S. Wintrob, John B Frank, and Sheldon M. Stone; (ii) three independent directors, Stephen J. Gilbert, D. Richard Masson, and Marna C. Whittington; and (iii) two Brookfield senior executives, Justin B. Beber and J. Bruce Flatt.

F5 · balance_after: Each of the Reporting Persons expressly disclaims beneficial ownership of the equity securities reported herein, except to the extent of their respective pecuniary interests therein, and the filing of this Form 4 shall not be construed as an admission that any such Reporting Person is the beneficial owner of any equity securities covered by this Form 4.

F6 · balance_after: The reporting persons are jointly filing this Form 4 pursuant to Rule 16a-3(j) under the Exchange Act.

F2 · ownership.direct: This Form 4 is being filed jointly by (each, a "Reporting Person" and, collectively, the "Reporting Persons") (i) Oaktree Power Opportunities Fund IV, L.P. (the "Main Fund"); (ii) Oaktree Power Opportunities Fund IV (Parallel), L.P. (the "Parallel Fund"); (iii) Oaktree ATI Investors, L.P. (the "Co-Invest Fund"); (iv) Oaktree Capital Management, L.P. ("OCM"); (v) Oaktree Capital Group, LLC ("OCG"); (vi) Atlas OCM Holdings LLC ("Atlas OCM"); (vii) Brookfield Asset Management, Inc. ("Brookfield"); and (viii) Oaktree Capital Group Holdings, L.P. ("OCGH LP").

F3 · ownership.direct: The Main Fund, the Parallel Fund and the Co-Invest Fund are together the controlling member of ATI Investment Parent, LLC ("Parent"). We refer to the Main Fund, the Parallel Fund and the Co-Invest Fund, collectively, as the "Oaktree Funds." OCM is the investment manager of each of the Oaktree Funds. As a result, each of the Oaktree Funds and OCM may be deemed to have beneficial ownership of the shares owned by Parent. OCM's asset management business is indirectly controlled by OCG and Atlas OCM. As of March 31, 2020, approximately 61.8% of OCM's business is indirectly owned by Brookfield and the remaining approximately 38.2% is owned by current and former OCM executives and employees. Brookfield's ownership interest in OCM's business is held through OCG, Atlas OCM and other holding entities.

F4 · ownership.direct: The current and former OCM executives and employees hold their interests through a separate entity, OCGH LP. The board of directors of OCG and of Atlas OCM is currently comprised of: (i) five Oaktree senior executives, Howard S. Marks, Bruce A. Karsh, Jay S. Wintrob, John B Frank, and Sheldon M. Stone; (ii) three independent directors, Stephen J. Gilbert, D. Richard Masson, and Marna C. Whittington; and (iii) two Brookfield senior executives, Justin B. Beber and J. Bruce Flatt.

F5 · ownership.direct: Each of the Reporting Persons expressly disclaims beneficial ownership of the equity securities reported herein, except to the extent of their respective pecuniary interests therein, and the filing of this Form 4 shall not be construed as an admission that any such Reporting Person is the beneficial owner of any equity securities covered by this Form 4.

F6 · ownership.direct: The reporting persons are jointly filing this Form 4 pursuant to Rule 16a-3(j) under the Exchange Act.

SEC source: 0000899243-20-028604 · doc4.xml · nonDerivative · entry 1

ATI Investment Parent, LLC · CIK 0001827785 · 10% owner

BROOKFIELD ASSET MANAGEMENT INC. · CIK 0001001085 · 10% owner

Oaktree Power Opportunities Fund IV, L.P. · CIK 0001622599 · 10% owner

Oaktree Power Opportunities Fund IV (Parallel), L.P. · CIK 0001701705 · 10% owner

Oaktree ATI Investors, L.P. · CIK 0001676821 · 10% owner

OAKTREE CAPITAL MANAGEMENT LP · CIK 0000949509 · 10% owner

Oaktree Capital Group, LLC · CIK 0001403528 · 10% owner

Atlas OCM Holdings, LLC · CIK 0001790787 · 10% owner

Oaktree Capital Group Holdings, L.P. · CIK 0001403527 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,369,467

F1 · kind: Represents common stock disposed of in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were disposed at the public offering price of $22.00 per share.

F1 · shares: Represents common stock disposed of in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were disposed at the public offering price of $22.00 per share.

F2 · balance_after: This Form 4 is being filed jointly by (each, a "Reporting Person" and, collectively, the "Reporting Persons") (i) Oaktree Power Opportunities Fund IV, L.P. (the "Main Fund"); (ii) Oaktree Power Opportunities Fund IV (Parallel), L.P. (the "Parallel Fund"); (iii) Oaktree ATI Investors, L.P. (the "Co-Invest Fund"); (iv) Oaktree Capital Management, L.P. ("OCM"); (v) Oaktree Capital Group, LLC ("OCG"); (vi) Atlas OCM Holdings LLC ("Atlas OCM"); (vii) Brookfield Asset Management, Inc. ("Brookfield"); and (viii) Oaktree Capital Group Holdings, L.P. ("OCGH LP").

F3 · balance_after: The Main Fund, the Parallel Fund and the Co-Invest Fund are together the controlling member of ATI Investment Parent, LLC ("Parent"). We refer to the Main Fund, the Parallel Fund and the Co-Invest Fund, collectively, as the "Oaktree Funds." OCM is the investment manager of each of the Oaktree Funds. As a result, each of the Oaktree Funds and OCM may be deemed to have beneficial ownership of the shares owned by Parent. OCM's asset management business is indirectly controlled by OCG and Atlas OCM. As of March 31, 2020, approximately 61.8% of OCM's business is indirectly owned by Brookfield and the remaining approximately 38.2% is owned by current and former OCM executives and employees. Brookfield's ownership interest in OCM's business is held through OCG, Atlas OCM and other holding entities.

F4 · balance_after: (continued from footnote 3) The current and former OCM executives and employees hold their interests through a separate entity, OCGH LP. The board of directors of OCG and of Atlas OCM is currently comprised of: (i) five Oaktree senior executives, Howard S. Marks, Bruce A. Karsh, Jay S. Wintrob, John B Frank, and Sheldon M. Stone; (ii) three independent directors, Stephen J. Gilbert, D. Richard Masson, and Marna C. Whittington; and (iii) two Brookfield senior executives, Justin B. Beber and J. Bruce Flatt.

F5 · balance_after: Each of the Reporting Persons expressly disclaims beneficial ownership of the equity securities reported herein, except to the extent of their respective pecuniary interests therein, and the filing of this Form 4 shall not be construed as an admission that any such Reporting Person is the beneficial owner of any equity securities covered by this Form 4.

F6 · balance_after: The reporting persons are jointly filing this Form 4 pursuant to Rule 16a-3(j) under the Exchange Act.

F2 · ownership.direct: This Form 4 is being filed jointly by (each, a "Reporting Person" and, collectively, the "Reporting Persons") (i) Oaktree Power Opportunities Fund IV, L.P. (the "Main Fund"); (ii) Oaktree Power Opportunities Fund IV (Parallel), L.P. (the "Parallel Fund"); (iii) Oaktree ATI Investors, L.P. (the "Co-Invest Fund"); (iv) Oaktree Capital Management, L.P. ("OCM"); (v) Oaktree Capital Group, LLC ("OCG"); (vi) Atlas OCM Holdings LLC ("Atlas OCM"); (vii) Brookfield Asset Management, Inc. ("Brookfield"); and (viii) Oaktree Capital Group Holdings, L.P. ("OCGH LP").

F3 · ownership.direct: The Main Fund, the Parallel Fund and the Co-Invest Fund are together the controlling member of ATI Investment Parent, LLC ("Parent"). We refer to the Main Fund, the Parallel Fund and the Co-Invest Fund, collectively, as the "Oaktree Funds." OCM is the investment manager of each of the Oaktree Funds. As a result, each of the Oaktree Funds and OCM may be deemed to have beneficial ownership of the shares owned by Parent. OCM's asset management business is indirectly controlled by OCG and Atlas OCM. As of March 31, 2020, approximately 61.8% of OCM's business is indirectly owned by Brookfield and the remaining approximately 38.2% is owned by current and former OCM executives and employees. Brookfield's ownership interest in OCM's business is held through OCG, Atlas OCM and other holding entities.

F4 · ownership.direct: (continued from footnote 3) The current and former OCM executives and employees hold their interests through a separate entity, OCGH LP. The board of directors of OCG and of Atlas OCM is currently comprised of: (i) five Oaktree senior executives, Howard S. Marks, Bruce A. Karsh, Jay S. Wintrob, John B Frank, and Sheldon M. Stone; (ii) three independent directors, Stephen J. Gilbert, D. Richard Masson, and Marna C. Whittington; and (iii) two Brookfield senior executives, Justin B. Beber and J. Bruce Flatt.

F5 · ownership.direct: Each of the Reporting Persons expressly disclaims beneficial ownership of the equity securities reported herein, except to the extent of their respective pecuniary interests therein, and the filing of this Form 4 shall not be construed as an admission that any such Reporting Person is the beneficial owner of any equity securities covered by this Form 4.

F6 · ownership.direct: The reporting persons are jointly filing this Form 4 pursuant to Rule 16a-3(j) under the Exchange Act.

SEC source: 0000899243-20-028610 · doc4.xml · derivative · entry 1

Alstead Troy · CIK 0001450940 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,545

Underlying: Common Stock, par value $0.001 per share · 4,545 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

SEC source: 0000899243-20-028602 · doc4.xml · derivative · entry 1

ASHFORD ORLANDO D · CIK 0001445728 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,545

Underlying: Common Stock, par value $0.001 per share · 4,545 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F1 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F1 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

SEC source: 0000899243-20-028613 · doc4.xml · derivative · entry 2

Fusaro James MacMillan · CIK 0001390022 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,924

Underlying: Common Stock, par value $0.001 per share · 60,924 shares

Expires not disclosed

F2 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

SEC source: 0000899243-20-028613 · doc4.xml · nonDerivative · entry 1

Fusaro James MacMillan · CIK 0001390022 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 182,772

F1 · kind: Represents common stock acquired in connection with Mr. Fusaro's reinvestment of his after-tax value distributions received in respect of his vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

F1 · shares: Represents common stock acquired in connection with Mr. Fusaro's reinvestment of his after-tax value distributions received in respect of his vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

SEC source: 0000899243-20-028609 · doc4.xml · derivative · entry 2

Patel Nipul M. · CIK 0001827799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,356

Underlying: Common Stock, par value $0.001 per share · 12,356 shares

Expires not disclosed

F2 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

SEC source: 0000899243-20-028609 · doc4.xml · nonDerivative · entry 1

Patel Nipul M. · CIK 0001827799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,068

F1 · kind: Represents common stock acquired in connection with Mr. Patel's reinvestment of his after-tax value distributions received in respect of his vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

F1 · shares: Represents common stock acquired in connection with Mr. Patel's reinvestment of his after-tax value distributions received in respect of his vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

SEC source: 0000899243-20-028614 · doc4.xml · derivative · entry 2

Cheraso Jennifer K. · CIK 0001828184 · Chief Human Resources Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,529

Underlying: Common Stock, par value $0.001 per share · 8,529 shares

Expires not disclosed

F2 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

SEC source: 0000899243-20-028614 · doc4.xml · nonDerivative · entry 1

Cheraso Jennifer K. · CIK 0001828184 · Chief Human Resources Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,588

F1 · kind: Represents common stock acquired in connection with Ms. Cheraso's reinvestment of her after-tax value distributions received in respect of her vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

F1 · shares: Represents common stock acquired in connection with Ms. Cheraso's reinvestment of her after-tax value distributions received in respect of her vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

SEC source: 0000899243-20-028612 · doc4.xml · derivative · entry 2

Forth John Bradford · CIK 0001827742 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,308

Underlying: Common Stock, par value $0.001 per share · 20,308 shares

Expires not disclosed

F2 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

SEC source: 0000899243-20-028612 · doc4.xml · nonDerivative · entry 1

Forth John Bradford · CIK 0001827742 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,924

F1 · kind: Represents common stock acquired in connection with Mr. Forth's reinvestment of his after-tax value distributions received in respect of his vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

F1 · shares: Represents common stock acquired in connection with Mr. Forth's reinvestment of his after-tax value distributions received in respect of his vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

SEC source: 0000899243-20-028605 · doc4.xml · derivative · entry 2

Krantz Jeffrey P. · CIK 0001828190 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,760

Underlying: Common Stock, par value $0.001 per share · 23,760 shares

Expires not disclosed

F2 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

SEC source: 0000899243-20-028605 · doc4.xml · nonDerivative · entry 1

Krantz Jeffrey P. · CIK 0001828190 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 71,281

F1 · kind: Represents common stock acquired in connection with Mr. Krantz's reinvestment of his after-tax value distributions received in respect of his vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

F1 · shares: Represents common stock acquired in connection with Mr. Krantz's reinvestment of his after-tax value distributions received in respect of his vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

SEC source: 0000899243-20-028607 · doc4.xml · derivative · entry 2

Bolland Stuart M. · CIK 0001827739 · Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,820

Underlying: Common Stock, par value $0.001 per share · 17,820 shares

Expires not disclosed

F2 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

SEC source: 0000899243-20-028607 · doc4.xml · nonDerivative · entry 1

Bolland Stuart M. · CIK 0001827739 · Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,461

F1 · kind: Represents common stock acquired in connection with Mr. Bolland's reinvestment of his after-tax value distributions received in respect of his vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

F1 · shares: Represents common stock acquired in connection with Mr. Bolland's reinvestment of his after-tax value distributions received in respect of his vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

SEC source: 0000899243-20-028606 · doc4.xml · derivative · entry 2

Creasy Lucas D. · CIK 0001827786 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,397

Underlying: Common Stock, par value $0.001 per share · 6,397 shares

Expires not disclosed

F2 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

SEC source: 0000899243-20-028606 · doc4.xml · nonDerivative · entry 1

Creasy Lucas D. · CIK 0001827786 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,191

F1 · kind: Represents common stock acquired in connection with Mr. Creasy's reinvestment of his after-tax value distributions received in respect of his vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

F1 · shares: Represents common stock acquired in connection with Mr. Creasy's reinvestment of his after-tax value distributions received in respect of his vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

SEC source: 0000899243-20-028603 · doc4.xml · derivative · entry 2

MacVane Charlotte A. · CIK 0001828175 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,740

Underlying: Common Stock, par value $0.001 per share · 25,740 shares

Expires not disclosed

F2 · derivative.exercise_price: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.exercise_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

F2 · derivative.expiration_date: Represents restricted stock units which will vest in three equal annual installments beginning on the first anniversary of October 19, 2020.

SEC source: 0000899243-20-028603 · doc4.xml · nonDerivative · entry 1

MacVane Charlotte A. · CIK 0001828175 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,221

F1 · kind: Represents common stock acquired in connection with Ms. MacVane's reinvestment of her after-tax value distributions received in respect of her vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.

F1 · shares: Represents common stock acquired in connection with Ms. MacVane's reinvestment of her after-tax value distributions received in respect of her vested Class B Common Units in ATI Investment Parent, LLC in connection with the initial public offering of Array Technologies, Inc.'s common stock, which closed on October 19, 2020. These shares of common stock were purchased at the public offering price of $22.00 per share.