SUNB · Sunbelt Rentals Holdings, Inc.

Represents cash settlement of deferred stock units at a value of $76.53 per unit, the closing price of the Issuer's common stock on April 30, 2026, pursuant to the Issuer's 2017 Deferred Bonus Plan; no shares of common stock were issued upon settlement.

Represents cash settlement of deferred stock units at a value of $76.53 per unit, the closing price of the Issuer's common stock on April 30, 2026, pursuant to the Issuer's 2017 Deferred Bonus Plan; no shares of common stock were issued upon settlement.

Represents cash settlement of deferred stock units at a value of $76.53 per unit, the closing price of the Issuer's common stock on April 30, 2026, pursuant to the Issuer's 2017 Deferred Bonus Plan; no shares of common stock were issued upon settlement.

Represents cash settlement of deferred stock units at a value of $76.53 per unit, the closing price of the Issuer's common stock on April 30, 2026, pursuant to the Issuer's 2017 Deferred Bonus Plan; no shares of common stock were issued upon settlement.

Represents cash settlement of deferred stock units at a value of $76.53 per unit, the closing price of the Issuer's common stock on April 30, 2026, pursuant to the Issuer's 2017 Deferred Bonus Plan; no shares of common stock were issued upon settlement.

Represents cash settlement of deferred stock units at a value of $76.53 per unit, the closing price of the Issuer's common stock on April 30, 2026, pursuant to the Issuer's 2017 Deferred Bonus Plan; no shares of common stock were issued upon settlement.

Represents cash settlement of deferred stock units at a value of $76.53 per unit, the closing price of the Issuer's common stock on April 30, 2026, pursuant to the Issuer's 2017 Deferred Bonus Plan; no shares of common stock were issued upon settlement.

Represents shares withheld upon the vesting of restricted stock units to pay tax withholding obligations.

Represents shares withheld upon the vesting of restricted stock units to pay tax withholding obligations.

Represents shares withheld upon the vesting of restricted stock units to pay tax withholding obligations.

Represents shares withheld upon the vesting of restricted stock units to pay tax withholding obligations.

Represents shares withheld upon the vesting of restricted stock units to pay tax withholding obligations.

Represents restricted stock units ("RSUs") granted by the Compensation Committee of the Company's Board of Directors pursuant to the Company's 2026 Omnibus Equity Incentive Plan. Each RSU represents a contractual right to receive one share of common stock of the Company.

One-third of the RSUs shall vest on each of 06/19/2027, 06/19/2028 and 06/19/2029.

Represents restricted stock units ("RSUs") granted by the Compensation Committee of the Company's Board of Directors pursuant to the Company's 2026 Omnibus Equity Incentive Plan. Each RSU represents a contractual right to receive one share of common stock of the Company.

One-third of the RSUs shall vest on each of 06/19/2027, 06/19/2028 and 06/19/2029.

Represents restricted stock units ("RSUs") granted by the Compensation Committee of the Company's Board of Directors pursuant to the Company's 2026 Omnibus Equity Incentive Plan. Each RSU represents a contractual right to receive one share of common stock of the Company.

One-third of the RSUs shall vest on each of 06/19/2027, 06/19/2028 and 06/19/2029.

Represents restricted stock units ("RSUs") granted by the Compensation Committee of the Company's Board of Directors pursuant to the Company's 2026 Omnibus Equity Incentive Plan. Each RSU represents a contractual right to receive one share of common stock of the Company.

One-third of the RSUs shall vest on each of 06/19/2027, 06/19/2028 and 06/19/2029.

Represents restricted stock units ("RSUs") granted by the Compensation Committee of the Company's Board of Directors pursuant to the Company's 2026 Omnibus Equity Incentive Plan. Each RSU represents a contractual right to receive one share of common stock of the Company.

One-third of the RSUs shall vest on each of 06/19/2027, 06/19/2028 and 06/19/2029.

Represents restricted stock units ("RSUs") granted by the Compensation Committee of the Company's Board of Directors pursuant to the Company's 2026 Omnibus Equity Incentive Plan. Each RSU represents a contractual right to receive one share of common stock of the Company.

One-third of the RSUs shall vest on each of 06/19/2027, 06/19/2028 and 06/19/2029.

Represents restricted stock units ("RSUs") granted by the Compensation Committee of the Company's Board of Directors pursuant to the Company's 2026 Omnibus Equity Incentive Plan. Each RSU represents a contractual right to receive one share of common stock of the Company.

One-third of the RSUs shall vest on each of 06/19/2027, 06/19/2028 and 06/19/2029.

Represents shares withheld upon the vesting of restricted stock units ("RSUs") to pay tax withholding obligations.

Represents shares withheld upon the vesting of restricted stock units to pay tax withholding obligations.

Represents shares withheld upon the vesting of restricted stock units ("RSUs") to pay tax withholding obligations.

Represents shares withheld upon the vesting of restricted stock units ("RSUs") to pay tax withholding obligations.

Represents shares withheld upon the vesting of performance stock units ("PSUs") to pay tax withholding obligations. The performance condition of the then-outstanding PSUs was deemed satisfied on March 2, 2026, in connection with the Registrant's initial listing on the New York Stock Exchange, and those PSUs were reported in Table I of the Reporting Person's Form 4 filed on March 3, 2026.

Represents shares withheld upon the vesting of performance stock units ("PSUs") to pay tax withholding obligations. The performance condition of the then-outstanding PSUs was deemed satisfied on March 2, 2026, in connection with the Registrant's initial listing on the New York Stock Exchange, and those PSUs were reported in Table I of the Reporting Person's Form 4 filed on March 3, 2026.

This Form 4 amendment is being filed to correct an administrative error resulting in 784 fewer shares being withheld than intended to satisfy the tax withholding obligations of the Reporting Person. The Reporting Person's total beneficial ownership following the reported transaction in Column 5 of Table I has been adjusted to reflect the corrected withholdings. As of the filing of this amendment, the Reporting Person directly beneficially owns 37,488 shares of common stock.

Represents shares withheld upon the vesting of performance stock units ("PSUs") to pay tax withholding obligations. The performance condition of the then-outstanding PSUs was deemed satisfied on March 2, 2026, in connection with the Registrant's initial listing on the New York Stock Exchange, and those PSUs were reported in Table I of the Reporting Person's Form 4 filed on March 3, 2026.

Represents shares withheld upon the vesting of performance stock units ("PSUs") to pay tax withholding obligations. The performance condition of the then-outstanding PSUs was deemed satisfied on March 2, 2026, in connection with the Registrant's initial listing on the New York Stock Exchange, and those PSUs were reported in Table I of the Reporting Person's Form 4 filed on March 3, 2026.

Represents shares withheld upon the vesting of performance stock units ("PSUs") to pay tax withholding obligations. The performance condition of the then-outstanding PSUs was deemed satisfied on March 2, 2026, in connection with the Registrant's initial listing on the New York Stock Exchange, and those PSUs were reported in Table I of the Reporting Person's Form 4 filed on March 3, 2026.

Due to an administrative error, the Reporting Person's aggregate beneficial ownership of Common Stock as reported in the "Amount of Securities Beneficially Owned Following Reported Transaction(s)" column in Table I of his Form 4 filed on March 3, 2026, was understated by 90 shares, and should have been 42,329 shares and 73,696 shares following the reported transactions, instead of 42,239 shares and 73,606 shares. The aggregate beneficial ownership reported in Table I above reflects the correction of this error.

Represents performance stock units ("PSUs"), each representing a contractual right to receive one share of common stock of the registrant. The performance conditions of the PSUs were deemed satisfied on March 2, 2026, in connection with the Registrant's initial listing on the New York Stock Exchange and as further discussed in the Registrant's Registration Statement on Form 10/A filed on February 13, 2026. Of such PSUs, 3,691 will vest on June 19, 2026; 4,318 will vest on June 20, 2027; and 5,920 will vest on July 4, 2028.

Represents restricted stock units which will vest on the earlier of March 2, 2027 and the day immediately preceding the date of the next annual shareholder meeting. Each restricted stock unit represents a contractual right to receive one share of common stock of the Registrant.

Represents performance stock units ("PSUs"), each representing a contractual right to receive one share of common stock of the registrant. The performance conditions of the PSUs were deemed satisfied on March 2, 2026, in connection with the Registrant's initial listing on the New York Stock Exchange and as further discussed in the Registrant's Registration Statement on Form 10/A filed on February 13, 2026. Of such PSUs, 20,421 will vest on June 20, 2027 and 24,420 will vest on July 4, 2028.

Represents performance stock units ("PSUs"), each representing a contractual right to receive one share of common stock of the registrant. The performance conditions of the PSUs were deemed satisfied on March 2, 2026, in connection with the Registrant's initial listing on the New York Stock Exchange and as further discussed in the Registrant's Registration Statement on Form 10/A filed on February 13, 2026. Of such PSUs, 48,946 will vest on June 19, 2026; 96,486 will vest on June 20, 2027; and 111,990 will vest on July 4, 2028.

Represents restricted stock units which will vest on the earlier of March 2, 2027 and the day immediately preceding the date of the next annual shareholder meeting. Each restricted stock unit represents a contractual right to receive one share of common stock of the Registrant.

Represents performance stock units ("PSUs"), each representing a contractual right to receive one share of common stock of the registrant. The performance conditions of the PSUs were deemed satisfied on March 2, 2026, in connection with the Registrant's initial listing on the New York Stock Exchange and as further discussed in the Registrant's Registration Statement on Form 10/A filed on February 13, 2026. Of such PSUs, 7,758 will vest on June 19, 2026; 9,030 will vest on June 20, 2027; and 10,592 will vest on July 4, 2028.

Represents restricted stock units which will vest on the earlier of March 2, 2027 and the day immediately preceding the date of the next annual shareholder meeting. Each restricted stock unit represents a contractual right to receive one share of common stock of the Registrant.

Represents performance stock units ("PSUs"), each representing a contractual right to receive one share of common stock of the registrant. The performance conditions of the PSUs were deemed satisfied on March 2, 2026, in connection with the Registrant's initial listing on the New York Stock Exchange and as further discussed in the Registrant's Registration Statement on Form 10/A filed on February 13, 2026. Of such PSUs, 8,437 will vest on June 19, 2026; 10,905 will vest on June 20, 2027; and 12,025 will vest on July 4, 2028.

Represents restricted stock units which will vest on the earlier of March 2, 2027 and the day immediately preceding the date of the next annual shareholder meeting. Each restricted stock unit represents a contractual right to receive one share of common stock of the Registrant.

Represents restricted stock units which will vest on the earlier of March 2, 2027 and the day immediately preceding the date of the next annual shareholder meeting. Each restricted stock unit represents a contractual right to receive one share of common stock of the Registrant.

Represents restricted stock units which will vest on the earlier of March 2, 2027 and the day immediately preceding the date of the next annual shareholder meeting. Each restricted stock unit represents a contractual right to receive one share of common stock of the Registrant.

Represents performance stock units ("PSUs"), each representing a contractual right to receive one share of common stock of the registrant. The performance conditions of the PSUs were deemed satisfied on March 2, 2026, in connection with the Registrant's initial listing on the New York Stock Exchange and as further discussed in the Registrant's Registration Statement on Form 10/A filed on February 13, 2026. Of such PSUs, 8,437 will vest on June 19, 2026; 9,820 will vest on June 20, 2027; and 10,822 will vest on July 4, 2028.

Represents restricted stock units which will vest on the earlier of March 2, 2027 and the day immediately preceding the date of the next annual shareholder meeting. Each restricted stock unit represents a contractual right to receive one share of common stock of the Registrant.

Represents common stock of the Registrant acquired in exchange for ordinary shares of Ashtead Group plc ("Ashtead") beneficially owned by the Reporting Person, upon completion of the scheme of arrangement effected by Ashtead, the Registrant's predecessor, under Part 26 of the UK Companies Act 2006. The exchange ratio was one-to-one and no cash consideration was paid or received.

Represents deferred stock units which will vest on April 30, 2026. Each deferred stock unit is the economic equivalent of one share of the Registrant's common stock and is settled solely in cash.

Includes 45,000 shares of common stock of the Registrant acquired in exchange for ordinary shares of Ashtead Group plc ("Ashtead") beneficially owned by the Reporting Person, upon completion of the scheme of arrangement effected by Ashtead, the Registrant's predecessor, under Part 26 of the UK Companies Act 2006. The exchange ratio was one-to-one and no cash consideration was paid or received.

Includes 8,706 restricted stock units, of which 1,641 will vest on June 20, 2026; 1,808 will vest on July 4, 2026; 1,640 will vest on June 20, 2027; 1,808 will vest on July 4, 2027; and 1,809 will vest on July 4, 2028. Each restricted stock unit represents a contractual right to receive one share of common stock of the Registrant.

Represents common stock of the Registrant acquired in exchange for ordinary shares of Ashtead Group plc ("Ashtead") beneficially owned by the Reporting Person, upon completion of the scheme of arrangement effected by Ashtead, the Registrant's predecessor, under Part 26 of the UK Companies Act 2006. The exchange ratio was one-to-one and no cash consideration was paid or received.

Includes 56,254 shares of common stock of the Registrant acquired in exchange for ordinary shares of Ashtead Group plc ("Ashtead") beneficially owned by the Reporting Person, upon completion of the scheme of arrangement effected by Ashtead, the Registrant's predecessor, under Part 26 of the UK Companies Act 2006. The exchange ratio was one-to-one and no cash consideration was paid or received.

Includes 8,326 restricted stock units, of which 1,509 will vest on June 20, 2026; 1,770 will vest on July 4, 2026; 1,508 will vest on June 20, 2027; 1,770 will vest on July 4, 2027; and 1,769 will vest on July 4, 2028. Each restricted stock unit represents a contractual right to receive one share of common stock of the Registrant.

Includes 32,567 shares of common stock of the Registrant acquired in exchange for ordinary shares of Ashtead Group plc ("Ashtead") beneficially owned by the Reporting Person, upon completion of the scheme of arrangement effected by Ashtead, the Registrant's predecessor, under Part 26 of the UK Companies Act 2006. The exchange ratio was one-to-one and no cash consideration was paid or received.

Includes 9,672 restricted stock units, of which 1,822 will vest on June 20, 2026; 2,009 will vest on July 4, 2026; 1,822 will vest on June 20, 2027; 2,009 will vest on July 4, 2027; and 2,010 will vest on July 4, 2028. Each restricted stock unit represents a contractual right to receive one share of common stock of the Registrant.

Represents common stock of the Registrant acquired in exchange for ordinary shares of Ashtead Group plc ("Ashtead") beneficially owned by the Reporting Person, upon completion of the scheme of arrangement effected by Ashtead, the Registrant's predecessor, under Part 26 of the UK Companies Act 2006. The exchange ratio was one-to-one and no cash consideration was paid or received.