LGN

SEC source: 0001193125-26-397992 · ownership.xml · nonDerivative · entry 1

Le Bris Philippe · CIK 0002082077 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,749

F1 · kind: The reported transactions occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 16, 2026.

SEC source: 0001193125-26-394763 · ownership.xml · nonDerivative · entry 1

Hansen Stephen Dale · CIK 0002098161 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,591

F1 · shares: Represents shares of Legence Corp's Class A common stock, par value $0.01 per share, withheld to satisfy tax withholding obligations upon vesting of Restricted Stock Units.

SEC source: 0001193125-26-394765 · ownership.xml · nonDerivative · entry 1

Seki Bryce · CIK 0001727251 · General Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,776

F1 · shares: Represents shares of Legence Corp's Class A common stock, par value $0.01 per share, withheld to satisfy tax withholding obligations upon vesting of Restricted Stock Units.

SEC source: 0001193125-26-394766 · ownership.xml · derivative · entry 4

Le Bris Philippe · CIK 0002082077 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,393

Underlying: Class A Common Stock · 4,196 shares

Expires not disclosed

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

F1 · kind: The reported transactions occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 06/16/2026.

F3 · derivative.exercise_date: The options vest in three substantially equal installments the first of which occurred on September 11, 2026. The second and third installments will vest on the second and third anniversaries of the date of the award, respectively, subject generally to continued employment through the applicable vesting date. The options expire on September 11, 2035, the tenth anniversary of the date of the award.

F3 · derivative.expiration_date: The options vest in three substantially equal installments the first of which occurred on September 11, 2026. The second and third installments will vest on the second and third anniversaries of the date of the award, respectively, subject generally to continued employment through the applicable vesting date. The options expire on September 11, 2035, the tenth anniversary of the date of the award.

SEC source: 0001193125-26-394766 · ownership.xml · nonDerivative · entry 3

Le Bris Philippe · CIK 0002082077 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,807

F2 · kind: Represents shares of Legence Corp's Class A common stock, par value $0.01 per share, withheld to satisfy tax withholding obligations upon vesting of Restricted Stock Units.

SEC source: 0001193125-26-394766 · ownership.xml · nonDerivative · entry 2

Le Bris Philippe · CIK 0002082077 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,148

F1 · kind: The reported transactions occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 06/16/2026.

SEC source: 0001193125-26-394766 · ownership.xml · nonDerivative · entry 1

Le Bris Philippe · CIK 0002082077 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,344

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

F1 · kind: The reported transactions occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 06/16/2026.

SEC source: 0001193125-26-394767 · ownership.xml · nonDerivative · entry 1

Butz Stephen M · CIK 0001483622 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,276

F1 · shares: Represents shares of Legence Corp's Class A common stock, par value $0.01 per share, withheld to satisfy tax withholding obligations upon vesting of Restricted Stock Units.

SEC source: 0001193125-26-394764 · ownership.xml · nonDerivative · entry 1

Sprau Jeffrey · CIK 0002082076 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,875

F1 · shares: Represents shares of Legence Corp's Class A common stock, par value $0.01 per share, withheld to satisfy tax withholding obligations upon vesting of Restricted Stock Units.

SEC source: 0001193125-26-394760 · ownership.xml · nonDerivative · entry 1

Schwartz Justin · CIK 0002098215 · Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,280

F1 · shares: Represents shares of Legence Corp's Class A common stock, par value $0.01 per share, withheld to satisfy tax withholding obligations upon vesting of Restricted Stock Units.

SEC source: 0001193125-26-394761 · ownership.xml · nonDerivative · entry 1

Barnes Gregory · CIK 0002082079 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,776

F1 · shares: Represents shares of Legence Corp's Class A common stock, par value $0.01 per share, withheld to satisfy tax withholding obligations upon vesting of Restricted Stock Units.

SEC source: 0001193125-26-359353 · ownership.xml · nonDerivative · entry 1

Crisci Robert · CIK 0001699417 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,257

F1 · security: The reported securities represent an award of Restricted Stock Units, which each entitle the reporting person to receive one share of Legence Corp.'s (the "Issuer") Class A common stock, par value $0.01 per share, upon vesting. The Restricted Stock Units will fully vest on the earlier of the first anniversary of the date of the award and the day immediately preceding the Issuer's 2027 annual stockholder meeting, subject to continued service through such date.

SEC source: 0001193125-26-267841 · ownership.xml · nonDerivative · entry 1

Kelly Christie B. · CIK 0001457703 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,032

F1 · security: The reported securities represent an award of Restricted Stock Units, which each entitle the reporting person to receive one share of Legence Corp.'s (the "Issuer") Class A common stock, par value $0.01 per share, upon vesting. The Restricted Stock Units will fully vest on the earlier of the first anniversary of the date of the award and the day immediately preceding the Issuer's 2027 annual stockholder meeting, subject to continued service through such date.

SEC source: 0001193125-26-267870 · ownership.xml · nonDerivative · entry 1

Coghlan David Joseph · CIK 0001435735 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,454

F1 · security: The reported securities represent an award of Restricted Stock Units, which each entitle the reporting person to receive one share of Legence Corp.'s (the "Issuer") Class A common stock, par value $0.01 per share, upon vesting. The Restricted Stock Units will fully vest on the earlier of the first anniversary of the date of the award and the day immediately preceding the Issuer's 2027 annual stockholder meeting, subject to continued service through such date.

SEC source: 0001193125-26-267896 · ownership.xml · nonDerivative · entry 1

Keenen Terrence · CIK 0002082078 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,960

F1 · security: The reported securities represent an award of Restricted Stock Units, which each entitle the reporting person to receive one share of Legence Corp.'s (the "Issuer") Class A common stock, par value $0.01 per share, upon vesting. The Restricted Stock Units will fully vest on the earlier of the first anniversary of the date of the award and the day immediately preceding the Issuer's 2027 annual stockholder meeting, subject to continued service through such date.

SEC source: 0001193125-26-149834 · ownership.xml · derivative · entry 5

Legence Parent ML LLC · CIK 0002099711 · 10% owner

Legence Parent II ML LLC · CIK 0002099710 · 10% owner

LEGENCE PARENT LLC · CIK 0001938307 · 10% owner

Legence Parent II LLC · CIK 0002084937 · 10% owner

BX Refficiency Aggregator LP · CIK 0002084815 · 10% owner

Refficiency Aggregator II LP · CIK 0002084817 · 10% owner

BCP 8/BEP 3 Holdings Manager L.L.C. · CIK 0002084814 · 10% owner

Blackstone Energy Management Associates III L.P. · CIK 0002084379 · 10% owner

Blackstone Management Associates VIII L.P. · CIK 0002084378 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 31,171,134

Underlying: Class A Common Stock · 9,528,699 shares

Expires not disclosed

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

F3 · derivative.exercise_price: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings, Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F1 · kind: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 9,528,699 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · shares: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 9,528,699 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · price: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 9,528,699 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F3 · derivative.exercise_date: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings, Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F3 · derivative.expiration_date: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings, Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F4 · balance_after: Represents Class B Units and a corresponding number shares of Class B Common Stock directly held by Parent ML immediately following the Exchange.

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-149834 · ownership.xml · nonDerivative · entry 4

Legence Parent ML LLC · CIK 0002099711 · 10% owner

Legence Parent II ML LLC · CIK 0002099710 · 10% owner

LEGENCE PARENT LLC · CIK 0001938307 · 10% owner

Legence Parent II LLC · CIK 0002084937 · 10% owner

BX Refficiency Aggregator LP · CIK 0002084815 · 10% owner

Refficiency Aggregator II LP · CIK 0002084817 · 10% owner

BCP 8/BEP 3 Holdings Manager L.L.C. · CIK 0002084814 · 10% owner

Blackstone Energy Management Associates III L.P. · CIK 0002084379 · 10% owner

Blackstone Management Associates VIII L.P. · CIK 0002084378 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent II ML

Disclosed balance after: 19,297,381

F2 · kind: In connection with the closing of the secondary offering (the "Offering") of shares of Class A Common Stock of the Issuer, Parent ML and Legence Parent II ML LLC ("Parent II ML") sold shares of Class A Common Stock to the underwriters at a price per share equal to the public offering price of $54.00 per share of Class A Common Stock, less underwriting discounts and commissions of $1.89 per share.

F6 · ownership.nature: Parent II ML is controlled by Legence Parent II LLC ("Parent II LLC"), its sole member. Parent II LLC is controlled by Refficiency Aggregator II LP ("Refficiency II"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of Refficiency II.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-149834 · ownership.xml · nonDerivative · entry 3

Legence Parent ML LLC · CIK 0002099711 · 10% owner

Legence Parent II ML LLC · CIK 0002099710 · 10% owner

LEGENCE PARENT LLC · CIK 0001938307 · 10% owner

Legence Parent II LLC · CIK 0002084937 · 10% owner

BX Refficiency Aggregator LP · CIK 0002084815 · 10% owner

Refficiency Aggregator II LP · CIK 0002084817 · 10% owner

BCP 8/BEP 3 Holdings Manager L.L.C. · CIK 0002084814 · 10% owner

Blackstone Energy Management Associates III L.P. · CIK 0002084379 · 10% owner

Blackstone Management Associates VIII L.P. · CIK 0002084378 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent ML

Disclosed balance after: 178,571

F2 · kind: In connection with the closing of the secondary offering (the "Offering") of shares of Class A Common Stock of the Issuer, Parent ML and Legence Parent II ML LLC ("Parent II ML") sold shares of Class A Common Stock to the underwriters at a price per share equal to the public offering price of $54.00 per share of Class A Common Stock, less underwriting discounts and commissions of $1.89 per share.

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-149834 · ownership.xml · nonDerivative · entry 2

Legence Parent ML LLC · CIK 0002099711 · 10% owner

Legence Parent II ML LLC · CIK 0002099710 · 10% owner

LEGENCE PARENT LLC · CIK 0001938307 · 10% owner

Legence Parent II LLC · CIK 0002084937 · 10% owner

BX Refficiency Aggregator LP · CIK 0002084815 · 10% owner

Refficiency Aggregator II LP · CIK 0002084817 · 10% owner

BCP 8/BEP 3 Holdings Manager L.L.C. · CIK 0002084814 · 10% owner

Blackstone Energy Management Associates III L.P. · CIK 0002084379 · 10% owner

Blackstone Management Associates VIII L.P. · CIK 0002084378 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent ML

Disclosed balance after: 31,171,134

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

F1 · kind: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 9,528,699 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · price: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 9,528,699 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F4 · balance_after: Represents Class B Units and a corresponding number shares of Class B Common Stock directly held by Parent ML immediately following the Exchange.

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-149834 · ownership.xml · nonDerivative · entry 1

Legence Parent ML LLC · CIK 0002099711 · 10% owner

Legence Parent II ML LLC · CIK 0002099710 · 10% owner

LEGENCE PARENT LLC · CIK 0001938307 · 10% owner

Legence Parent II LLC · CIK 0002084937 · 10% owner

BX Refficiency Aggregator LP · CIK 0002084815 · 10% owner

Refficiency Aggregator II LP · CIK 0002084817 · 10% owner

BCP 8/BEP 3 Holdings Manager L.L.C. · CIK 0002084814 · 10% owner

Blackstone Energy Management Associates III L.P. · CIK 0002084379 · 10% owner

Blackstone Management Associates VIII L.P. · CIK 0002084378 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent ML

Disclosed balance after: 9,707,270

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

F1 · kind: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 9,528,699 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · price: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 9,528,699 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-149867 · ownership.xml · derivative · entry 5

Blackstone EMA III L.L.C. · CIK 0002084377 · 10% owner

BMA VIII L.L.C. · CIK 0002084966 · 10% owner

Blackstone Holdings II L.P. · CIK 0001484870 · 10% owner

Blackstone Holdings I/II GP L.L.C. · CIK 0001464695 · 10% owner

Blackstone Inc. · CIK 0001393818 · 10% owner

Blackstone Group Management L.L.C. · CIK 0001404071 · 10% owner

SCHWARZMAN STEPHEN A · CIK 0001070844 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 31,171,134

Underlying: Class A Common Stock · 9,528,699 shares

Expires not disclosed

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

F3 · derivative.exercise_price: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings, Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F1 · kind: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 9,528,699 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · shares: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 9,528,699 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · price: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 9,528,699 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F3 · derivative.exercise_date: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings, Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F3 · derivative.expiration_date: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings, Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F4 · balance_after: Represents Class B Units and a corresponding number shares of Class B Common Stock directly held by Parent ML immediately following the Exchange.

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-149867 · ownership.xml · nonDerivative · entry 4

Blackstone EMA III L.L.C. · CIK 0002084377 · 10% owner

BMA VIII L.L.C. · CIK 0002084966 · 10% owner

Blackstone Holdings II L.P. · CIK 0001484870 · 10% owner

Blackstone Holdings I/II GP L.L.C. · CIK 0001464695 · 10% owner

Blackstone Inc. · CIK 0001393818 · 10% owner

Blackstone Group Management L.L.C. · CIK 0001404071 · 10% owner

SCHWARZMAN STEPHEN A · CIK 0001070844 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent II ML

Disclosed balance after: 19,297,381

F2 · kind: In connection with the closing of the secondary offering (the "Offering") of shares of Class A Common Stock of the Issuer, Parent ML and Legence Parent II ML LLC ("Parent II ML") sold shares of Class A Common Stock to the underwriters at a price per share equal to the public offering price of $54.00 per share of Class A Common Stock, less underwriting discounts and commissions of $1.89 per share.

F6 · ownership.nature: Parent II ML is controlled by Legence Parent II LLC ("Parent II LLC"), its sole member. Parent II LLC is controlled by Refficiency Aggregator II LP ("Refficiency II"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of Refficiency II.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-149867 · ownership.xml · nonDerivative · entry 3

Blackstone EMA III L.L.C. · CIK 0002084377 · 10% owner

BMA VIII L.L.C. · CIK 0002084966 · 10% owner

Blackstone Holdings II L.P. · CIK 0001484870 · 10% owner

Blackstone Holdings I/II GP L.L.C. · CIK 0001464695 · 10% owner

Blackstone Inc. · CIK 0001393818 · 10% owner

Blackstone Group Management L.L.C. · CIK 0001404071 · 10% owner

SCHWARZMAN STEPHEN A · CIK 0001070844 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent ML

Disclosed balance after: 178,571

F2 · kind: In connection with the closing of the secondary offering (the "Offering") of shares of Class A Common Stock of the Issuer, Parent ML and Legence Parent II ML LLC ("Parent II ML") sold shares of Class A Common Stock to the underwriters at a price per share equal to the public offering price of $54.00 per share of Class A Common Stock, less underwriting discounts and commissions of $1.89 per share.

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-149867 · ownership.xml · nonDerivative · entry 2

Blackstone EMA III L.L.C. · CIK 0002084377 · 10% owner

BMA VIII L.L.C. · CIK 0002084966 · 10% owner

Blackstone Holdings II L.P. · CIK 0001484870 · 10% owner

Blackstone Holdings I/II GP L.L.C. · CIK 0001464695 · 10% owner

Blackstone Inc. · CIK 0001393818 · 10% owner

Blackstone Group Management L.L.C. · CIK 0001404071 · 10% owner

SCHWARZMAN STEPHEN A · CIK 0001070844 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent ML

Disclosed balance after: 31,171,134

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

F1 · kind: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 9,528,699 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · price: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 9,528,699 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F4 · balance_after: Represents Class B Units and a corresponding number shares of Class B Common Stock directly held by Parent ML immediately following the Exchange.

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-149867 · ownership.xml · nonDerivative · entry 1

Blackstone EMA III L.L.C. · CIK 0002084377 · 10% owner

BMA VIII L.L.C. · CIK 0002084966 · 10% owner

Blackstone Holdings II L.P. · CIK 0001484870 · 10% owner

Blackstone Holdings I/II GP L.L.C. · CIK 0001464695 · 10% owner

Blackstone Inc. · CIK 0001393818 · 10% owner

Blackstone Group Management L.L.C. · CIK 0001404071 · 10% owner

SCHWARZMAN STEPHEN A · CIK 0001070844 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent ML

Disclosed balance after: 9,707,270

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

F1 · kind: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 9,528,699 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · price: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 9,528,699 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-114434 · ownership.xml · derivative · entry 2

Seki Bryce · CIK 0001727251 · General Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,123

Underlying: Class A Common Stock · 8,123 shares

Expires not disclosed

F2 · derivative.exercise_date: The options will vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date. The options expire on the tenth anniversary of the date of the award.

F2 · derivative.expiration_date: The options will vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date. The options expire on the tenth anniversary of the date of the award.

SEC source: 0001193125-26-114434 · ownership.xml · nonDerivative · entry 1

Seki Bryce · CIK 0001727251 · General Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,429

F1 · security: The reported securities represent an award of Restricted Stock Units, which each entitle the reporting person to receive, at vesting, one share of Legence Corp.'s Class A common stock, par value $0.01 per share. The Restricted Stock Units vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date.

SEC source: 0001193125-26-114404 · ownership.xml · derivative · entry 2

Butz Stephen M · CIK 0001483622 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,051

Underlying: Class A Common Stock · 18,051 shares

Expires not disclosed

F2 · derivative.exercise_date: The options will vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date. The options expire on the tenth anniversary of the date of the award.

F2 · derivative.expiration_date: The options will vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date. The options expire on the tenth anniversary of the date of the award.

SEC source: 0001193125-26-114404 · ownership.xml · nonDerivative · entry 1

Butz Stephen M · CIK 0001483622 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,619

F1 · security: The reported securities represent an award of Restricted Stock Units, which each entitle the reporting person to receive, at vesting, one share of Legence Corp.'s Class A common stock, par value $0.01 per share. The Restricted Stock Units vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date.

SEC source: 0001193125-26-114448 · ownership.xml · derivative · entry 2

Sprau Jeffrey · CIK 0002082076 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,177

Underlying: Class A Common Stock · 63,177 shares

Expires not disclosed

F2 · derivative.exercise_date: The options will vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date. The options expire on the tenth anniversary of the date of the award.

F2 · derivative.expiration_date: The options will vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date. The options expire on the tenth anniversary of the date of the award.

SEC source: 0001193125-26-114448 · ownership.xml · nonDerivative · entry 1

Sprau Jeffrey · CIK 0002082076 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,667

F1 · security: The reported securities represent an award of Restricted Stock Units, which each entitle the reporting person to receive, at vesting, one share of Legence Corp.'s Class A common stock, par value $0.01 per share. The Restricted Stock Units vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date.

SEC source: 0001193125-26-114443 · ownership.xml · derivative · entry 2

Barnes Gregory · CIK 0002082079 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,123

Underlying: Class A Common Stock · 8,123 shares

Expires not disclosed

F2 · derivative.exercise_date: The options will vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date. The options expire on the tenth anniversary of the date of the award.

F2 · derivative.expiration_date: The options will vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date. The options expire on the tenth anniversary of the date of the award.

SEC source: 0001193125-26-114443 · ownership.xml · nonDerivative · entry 1

Barnes Gregory · CIK 0002082079 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,429

F1 · security: The reported securities represent an award of Restricted Stock Units, which each entitle the reporting person to receive, at vesting, one share of Legence Corp.'s Class A common stock, par value $0.01 per share. The Restricted Stock Units vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date.

SEC source: 0001193125-26-114427 · ownership.xml · derivative · entry 2

Le Bris Philippe · CIK 0002082077 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,610

Underlying: Class A Common Stock · 3,610 shares

Expires not disclosed

F2 · derivative.exercise_date: The options will vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date. The options expire on the tenth anniversary of the date of the award.

F2 · derivative.expiration_date: The options will vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date. The options expire on the tenth anniversary of the date of the award.

SEC source: 0001193125-26-114427 · ownership.xml · nonDerivative · entry 1

Le Bris Philippe · CIK 0002082077 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,148

F1 · security: The reported securities represent an award of Restricted Stock Units, which each entitle the reporting person to receive, at vesting, one share of Legence Corp.'s Class A common stock, par value $0.01 per share. The Restricted Stock Units vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date.

SEC source: 0001193125-26-114415 · ownership.xml · derivative · entry 2

Hansen Stephen Dale · CIK 0002098161 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,343

Underlying: Class A Common Stock · 15,343 shares

Expires not disclosed

F2 · derivative.exercise_date: The options will vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date. The options expire on the tenth anniversary of the date of the award.

F2 · derivative.expiration_date: The options will vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date. The options expire on the tenth anniversary of the date of the award.

SEC source: 0001193125-26-114415 · ownership.xml · nonDerivative · entry 1

Hansen Stephen Dale · CIK 0002098161 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,262

F1 · security: The reported securities represent an award of Restricted Stock Units, which each entitle the reporting person to receive, at vesting, one share of Legence Corp.'s Class A common stock, par value $0.01 per share. The Restricted Stock Units vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date.

SEC source: 0001193125-26-114395 · ownership.xml · derivative · entry 2

Schwartz Justin · CIK 0002098215 · Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,220

Underlying: Class A Common Stock · 7,220 shares

Expires not disclosed

F2 · derivative.exercise_date: The options will vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date. The options expire on the tenth anniversary of the date of the award.

F2 · derivative.expiration_date: The options will vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date. The options expire on the tenth anniversary of the date of the award.

SEC source: 0001193125-26-114395 · ownership.xml · nonDerivative · entry 1

Schwartz Justin · CIK 0002098215 · Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,048

F1 · security: The reported securities represent an award of Restricted Stock Units, which each entitle the reporting person to receive, at vesting, one share of Legence Corp.'s Class A common stock, par value $0.01 per share. The Restricted Stock Units vest in three substantially equal installments on each of the first, second and third anniversaries of the date of the award, subject generally to continued employment through the applicable vesting date.

SEC source: 0001193125-26-007717 · ownership.xml · derivative · entry 5

Legence Parent ML LLC · CIK 0002099711 · 10% owner

Legence Parent II ML LLC · CIK 0002099710 · 10% owner

LEGENCE PARENT LLC · CIK 0001938307 · 10% owner

Legence Parent II LLC · CIK 0002084937 · 10% owner

BX Refficiency Aggregator LP · CIK 0002084815 · 10% owner

Refficiency Aggregator II LP · CIK 0002084817 · 10% owner

BCP 8/BEP 3 Holdings Manager L.L.C. · CIK 0002084814 · 10% owner

Blackstone Energy Management Associates III L.P. · CIK 0002084379 · 10% owner

Blackstone Management Associates VIII L.P. · CIK 0002084378 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 40,699,833

Underlying: Class A Common Stock · 780,121 shares

Expires not disclosed

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

F3 · derivative.exercise_price: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings, Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F1 · kind: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 780,121 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · shares: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 780,121 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · price: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 780,121 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F3 · derivative.exercise_date: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings, Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F3 · derivative.expiration_date: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings, Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F4 · balance_after: Represents Class B Units and a corresponding number shares of Class B Common Stock directly held by Parent ML immediately following the Exchange.

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-007717 · ownership.xml · nonDerivative · entry 4

Legence Parent ML LLC · CIK 0002099711 · 10% owner

Legence Parent II ML LLC · CIK 0002099710 · 10% owner

LEGENCE PARENT LLC · CIK 0001938307 · 10% owner

Legence Parent II LLC · CIK 0002084937 · 10% owner

BX Refficiency Aggregator LP · CIK 0002084815 · 10% owner

Refficiency Aggregator II LP · CIK 0002084817 · 10% owner

BCP 8/BEP 3 Holdings Manager L.L.C. · CIK 0002084814 · 10% owner

Blackstone Energy Management Associates III L.P. · CIK 0002084379 · 10% owner

Blackstone Management Associates VIII L.P. · CIK 0002084378 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent II ML

Disclosed balance after: 25,162,794

F2 · kind: In connection with the underwriters' exercise of their over-allotment option relating to the secondary offering of shares of Class A Common Stock of the Issuer, Parent ML and Legence Parent II ML LLC ("Parent II ML") sold shares of Class A Common Stock to the underwriters at a price per share equal to the public offering price of $45.00 per share of Class A Common Stock, less underwriting discounts and commissions of $1.575 per share.

F6 · ownership.nature: Parent II ML is controlled by Legence Parent II LLC ("Parent II LLC"), its sole member. Parent II LLC is controlled by Refficiency Aggregator II LP ("Refficiency II"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of Refficiency II.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-007717 · ownership.xml · nonDerivative · entry 3

Legence Parent ML LLC · CIK 0002099711 · 10% owner

Legence Parent II ML LLC · CIK 0002099710 · 10% owner

LEGENCE PARENT LLC · CIK 0001938307 · 10% owner

Legence Parent II LLC · CIK 0002084937 · 10% owner

BX Refficiency Aggregator LP · CIK 0002084815 · 10% owner

Refficiency Aggregator II LP · CIK 0002084817 · 10% owner

BCP 8/BEP 3 Holdings Manager L.L.C. · CIK 0002084814 · 10% owner

Blackstone Energy Management Associates III L.P. · CIK 0002084379 · 10% owner

Blackstone Management Associates VIII L.P. · CIK 0002084378 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent ML

Disclosed balance after: 178,571

F2 · kind: In connection with the underwriters' exercise of their over-allotment option relating to the secondary offering of shares of Class A Common Stock of the Issuer, Parent ML and Legence Parent II ML LLC ("Parent II ML") sold shares of Class A Common Stock to the underwriters at a price per share equal to the public offering price of $45.00 per share of Class A Common Stock, less underwriting discounts and commissions of $1.575 per share.

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-007717 · ownership.xml · nonDerivative · entry 2

Legence Parent ML LLC · CIK 0002099711 · 10% owner

Legence Parent II ML LLC · CIK 0002099710 · 10% owner

LEGENCE PARENT LLC · CIK 0001938307 · 10% owner

Legence Parent II LLC · CIK 0002084937 · 10% owner

BX Refficiency Aggregator LP · CIK 0002084815 · 10% owner

Refficiency Aggregator II LP · CIK 0002084817 · 10% owner

BCP 8/BEP 3 Holdings Manager L.L.C. · CIK 0002084814 · 10% owner

Blackstone Energy Management Associates III L.P. · CIK 0002084379 · 10% owner

Blackstone Management Associates VIII L.P. · CIK 0002084378 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent ML

Disclosed balance after: 40,699,833

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

F1 · kind: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 780,121 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · price: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 780,121 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F4 · balance_after: Represents Class B Units and a corresponding number shares of Class B Common Stock directly held by Parent ML immediately following the Exchange.

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-007717 · ownership.xml · nonDerivative · entry 1

Legence Parent ML LLC · CIK 0002099711 · 10% owner

Legence Parent II ML LLC · CIK 0002099710 · 10% owner

LEGENCE PARENT LLC · CIK 0001938307 · 10% owner

Legence Parent II LLC · CIK 0002084937 · 10% owner

BX Refficiency Aggregator LP · CIK 0002084815 · 10% owner

Refficiency Aggregator II LP · CIK 0002084817 · 10% owner

BCP 8/BEP 3 Holdings Manager L.L.C. · CIK 0002084814 · 10% owner

Blackstone Energy Management Associates III L.P. · CIK 0002084379 · 10% owner

Blackstone Management Associates VIII L.P. · CIK 0002084378 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent ML

Disclosed balance after: 958,692

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

F1 · kind: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 780,121 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · price: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 780,121 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-007718 · ownership.xml · derivative · entry 5

Blackstone EMA III L.L.C. · CIK 0002084377 · 10% owner

BMA VIII L.L.C. · CIK 0002084966 · 10% owner

Blackstone Holdings II L.P. · CIK 0001484870 · 10% owner

Blackstone Holdings I/II GP L.L.C. · CIK 0001464695 · 10% owner

Blackstone Inc. · CIK 0001393818 · 10% owner

Blackstone Group Management L.L.C. · CIK 0001404071 · 10% owner

SCHWARZMAN STEPHEN A · CIK 0001070844 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 40,699,833

Underlying: Class A Common Stock · 780,121 shares

Expires not disclosed

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

F3 · derivative.exercise_price: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings , Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F1 · kind: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 780,121 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · shares: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 780,121 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · price: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 780,121 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F3 · derivative.exercise_date: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings , Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F3 · derivative.expiration_date: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings , Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F4 · balance_after: Represents Class B Units and a corresponding number shares of Class B Common Stock directly held by Parent ML immediately following the Exchange.

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-007718 · ownership.xml · nonDerivative · entry 4

Blackstone EMA III L.L.C. · CIK 0002084377 · 10% owner

BMA VIII L.L.C. · CIK 0002084966 · 10% owner

Blackstone Holdings II L.P. · CIK 0001484870 · 10% owner

Blackstone Holdings I/II GP L.L.C. · CIK 0001464695 · 10% owner

Blackstone Inc. · CIK 0001393818 · 10% owner

Blackstone Group Management L.L.C. · CIK 0001404071 · 10% owner

SCHWARZMAN STEPHEN A · CIK 0001070844 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent II ML

Disclosed balance after: 25,162,794

F2 · kind: In connection with the underwriters' exercise of their over-allotment option relating to the secondary offering of shares of Class A Common Stock of the Issuer, Parent ML and Legence Parent II ML LLC ("Parent II ML") sold shares of Class A Common Stock to the underwriters at a price per share equal to the public offering price of $45.00 per share of Class A Common Stock, less underwriting discounts and commissions of $1.575 per share.

F6 · ownership.nature: Parent II ML is controlled by Legence Parent II LLC ("Parent II LLC"), its sole member. Parent II LLC is controlled by Refficiency Aggregator II LP ("Refficiency II"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of Refficiency II.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-007718 · ownership.xml · nonDerivative · entry 3

Blackstone EMA III L.L.C. · CIK 0002084377 · 10% owner

BMA VIII L.L.C. · CIK 0002084966 · 10% owner

Blackstone Holdings II L.P. · CIK 0001484870 · 10% owner

Blackstone Holdings I/II GP L.L.C. · CIK 0001464695 · 10% owner

Blackstone Inc. · CIK 0001393818 · 10% owner

Blackstone Group Management L.L.C. · CIK 0001404071 · 10% owner

SCHWARZMAN STEPHEN A · CIK 0001070844 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent ML

Disclosed balance after: 178,571

F2 · kind: In connection with the underwriters' exercise of their over-allotment option relating to the secondary offering of shares of Class A Common Stock of the Issuer, Parent ML and Legence Parent II ML LLC ("Parent II ML") sold shares of Class A Common Stock to the underwriters at a price per share equal to the public offering price of $45.00 per share of Class A Common Stock, less underwriting discounts and commissions of $1.575 per share.

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-007718 · ownership.xml · nonDerivative · entry 2

Blackstone EMA III L.L.C. · CIK 0002084377 · 10% owner

BMA VIII L.L.C. · CIK 0002084966 · 10% owner

Blackstone Holdings II L.P. · CIK 0001484870 · 10% owner

Blackstone Holdings I/II GP L.L.C. · CIK 0001464695 · 10% owner

Blackstone Inc. · CIK 0001393818 · 10% owner

Blackstone Group Management L.L.C. · CIK 0001404071 · 10% owner

SCHWARZMAN STEPHEN A · CIK 0001070844 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent ML

Disclosed balance after: 40,699,833

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

F1 · kind: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 780,121 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · price: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 780,121 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F4 · balance_after: Represents Class B Units and a corresponding number shares of Class B Common Stock directly held by Parent ML immediately following the Exchange.

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-26-007718 · ownership.xml · nonDerivative · entry 1

Blackstone EMA III L.L.C. · CIK 0002084377 · 10% owner

BMA VIII L.L.C. · CIK 0002084966 · 10% owner

Blackstone Holdings II L.P. · CIK 0001484870 · 10% owner

Blackstone Holdings I/II GP L.L.C. · CIK 0001464695 · 10% owner

Blackstone Inc. · CIK 0001393818 · 10% owner

Blackstone Group Management L.L.C. · CIK 0001404071 · 10% owner

SCHWARZMAN STEPHEN A · CIK 0001070844 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Parent ML

Disclosed balance after: 958,692

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

F1 · kind: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 780,121 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · price: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 780,121 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001193125-25-320846 · ownership.xml · derivative · entry 5

Legence Parent ML LLC · CIK 0002099711 · 10% owner

Legence Parent II ML LLC · CIK 0002099710 · 10% owner

LEGENCE PARENT LLC · CIK 0001938307 · 10% owner

Legence Parent II LLC · CIK 0002084937 · 10% owner

BX Refficiency Aggregator LP · CIK 0002084815 · 10% owner

Refficiency Aggregator II LP · CIK 0002084817 · 10% owner

BCP 8/BEP 3 Holdings Manager L.L.C. · CIK 0002084814 · 10% owner

Blackstone Energy Management Associates III L.P. · CIK 0002084379 · 10% owner

Blackstone Management Associates VIII L.P. · CIK 0002084378 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 41,479,954

Underlying: Class A Common Stock · 5,200,808 shares

Expires not disclosed

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

F3 · derivative.exercise_price: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings, Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F1 · kind: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 5,200,808 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · shares: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 5,200,808 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F1 · price: Represents the exchange by Legence Parent ML LLC ("Parent ML") of 5,200,808 Class B Units of Legence Holdings LLC ("Holdings") (together with an equal number of shares of the Issuer's Class B Common Stock, which were forfeited for no additional consideration) for a corresponding number of shares of the Issuer's Class A Common Stock (the "Exchange").

F3 · derivative.exercise_date: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings, Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F3 · derivative.expiration_date: Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Holdings and that certain Exchange Agreement, dated as of September 11, 2025, by and among, among others, the Issuer and Holdings, Parent ML may exchange Class B Units held by it (along with forfeiting a corresponding number of shares of Class B Common Stock) for shares of Class A Common Stock on a one-for-one basis. The Class B Units do not expire. Shares of Class B Common Stock do not represent economic interests in the Issuer.

F4 · balance_after: Represents Class B Units and a corresponding number shares of Class B Common Stock directly held by Parent ML immediately following the Exchange.

F5 · ownership.nature: Parent ML is controlled by Legence Parent LLC ("Parent"), its sole member. Parent is controlled by BX Refficiency Aggregator LP ("BX Refficiency"), its managing member. BCP 8/BEP 3 Holdings Manager L.L.C. is the general partner of BX Refficiency.

F7 · ownership.nature: Blackstone Energy Management Associates III L.P. and Blackstone Management Associates VIII L.P. are the managing members of BCP 8/BEP 3 Holdings Manager L.L.C. Blackstone EMA III L.L.C. is the general partner of Blackstone Energy Management Associates III L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P. Blackstone Holdings II L.P. is the managing member of Blackstone EMA III L.L.C. and BMA VIII L.L.C. Blackstone Holdings I/II GP L.L.C. is the general partner of Blackstone Holdings II L.P. Blackstone Inc. ("Blackstone") is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.