Boyle James M

SEC source: 0001193125-26-361183 · ownership.xml · derivative · entry 1

Boyle James M · CIK 0002061052 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 764,252

Underlying: Class A Common Stock · 764,252 shares

Expires not disclosed

F1 · kind: Represents performance-based incentive units of Medline Holdings, LP ("Incentive Units"), that were earned as a result of the achievement of certain performance criteria as certified by the compensation committee of the Issuer's board of directors on August 19, 2026. These Incentive Units are fully vested.

F1 · price: Represents performance-based incentive units of Medline Holdings, LP ("Incentive Units"), that were earned as a result of the achievement of certain performance criteria as certified by the compensation committee of the Issuer's board of directors on August 19, 2026. These Incentive Units are fully vested.

F1 · derivative.exercise_date: Represents performance-based incentive units of Medline Holdings, LP ("Incentive Units"), that were earned as a result of the achievement of certain performance criteria as certified by the compensation committee of the Issuer's board of directors on August 19, 2026. These Incentive Units are fully vested.

F2 · derivative.exercise_date: Incentive Units are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F3 · derivative.exercise_date: (Continued from Footnote 2 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F1 · derivative.expiration_date: Represents performance-based incentive units of Medline Holdings, LP ("Incentive Units"), that were earned as a result of the achievement of certain performance criteria as certified by the compensation committee of the Issuer's board of directors on August 19, 2026. These Incentive Units are fully vested.

F2 · derivative.expiration_date: Incentive Units are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F3 · derivative.expiration_date: (Continued from Footnote 2 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F2 · ownership.nature: Incentive Units are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F3 · ownership.nature: (Continued from Footnote 2 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

SEC source: 0001193125-26-274286 · ownership.xml · nonDerivative · entry 1

Boyle James M · CIK 0002061052 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,369

F1 · kind: Reflects shares withheld to satisfy the Reporting Person's tax liability in connection with the vesting of restricted stock units.

SEC source: 0001193125-26-096654 · ownership.xml · nonDerivative · entry 3

Boyle James M · CIK 0002061052 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,739

F4 · kind: Represents a grant of restricted stock units ("RSUs"), of which 25% vest on June 15, 2026 and the remaining 75% vest in three equal annual installments beginning on March 1, 2027.

SEC source: 0001193125-26-096654 · ownership.xml · derivative · entry 11

Boyle James M · CIK 0002061052 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,057,309

Underlying: Class A Common Stock · 1,057,309 shares

Expires not disclosed

F6 · derivative.exercise_price: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.exercise_price: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F1 · kind: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F1 · price: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F6 · derivative.exercise_date: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.exercise_date: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F13 · derivative.exercise_date: These Incentive Units are fully vested.

F6 · derivative.expiration_date: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.expiration_date: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F13 · derivative.expiration_date: These Incentive Units are fully vested.

F3 · ownership.nature: These securities are held by a family trust of which the Reporting Person's spouse is the trustee.

F6 · ownership.nature: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · ownership.nature: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

SEC source: 0001193125-26-096654 · ownership.xml · derivative · entry 10

Boyle James M · CIK 0002061052 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 183,699

Underlying: Class A Common Stock · 183,699 shares

Expires not disclosed

F6 · derivative.exercise_price: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.exercise_price: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F1 · kind: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F1 · price: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F6 · derivative.exercise_date: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.exercise_date: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F12 · derivative.exercise_date: These Incentive Units vest in five equal annual installments beginning on March 28, 2026.

F6 · derivative.expiration_date: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.expiration_date: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F12 · derivative.expiration_date: These Incentive Units vest in five equal annual installments beginning on March 28, 2026.

F6 · ownership.nature: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · ownership.nature: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

SEC source: 0001193125-26-096654 · ownership.xml · derivative · entry 9

Boyle James M · CIK 0002061052 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 252,481

Underlying: Class A Common Stock · 252,481 shares

Expires not disclosed

F6 · derivative.exercise_price: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.exercise_price: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F1 · kind: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F1 · price: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F6 · derivative.exercise_date: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.exercise_date: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F11 · derivative.exercise_date: 20% of these Incentive Units have vested, and the remaining 80% vest in four equal annual installments beginning on March 29, 2026.

F6 · derivative.expiration_date: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.expiration_date: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F11 · derivative.expiration_date: 20% of these Incentive Units have vested, and the remaining 80% vest in four equal annual installments beginning on March 29, 2026.

F6 · ownership.nature: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · ownership.nature: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

SEC source: 0001193125-26-096654 · ownership.xml · derivative · entry 8

Boyle James M · CIK 0002061052 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,146,379

Underlying: Class A Common Stock · 1,146,379 shares

Expires not disclosed

F6 · derivative.exercise_price: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.exercise_price: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F1 · kind: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F1 · price: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F6 · derivative.exercise_date: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.exercise_date: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F10 · derivative.exercise_date: 40% of these Incentive Units have vested, and the remaining 60% vest in three equal annual installments beginning on October 1, 2026.

F6 · derivative.expiration_date: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.expiration_date: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F10 · derivative.expiration_date: 40% of these Incentive Units have vested, and the remaining 60% vest in three equal annual installments beginning on October 1, 2026.

F6 · ownership.nature: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · ownership.nature: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

SEC source: 0001193125-26-096654 · ownership.xml · derivative · entry 7

Boyle James M · CIK 0002061052 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 340,407

Underlying: Class A Common Stock · 340,407 shares

Expires not disclosed

F6 · derivative.exercise_price: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.exercise_price: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F1 · kind: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F1 · price: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F6 · derivative.exercise_date: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.exercise_date: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F9 · derivative.exercise_date: 40% of these Incentive Units have vested, and the remaining 60% vest in three equal annual installments beginning on April 1, 2026.

F6 · derivative.expiration_date: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.expiration_date: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F9 · derivative.expiration_date: 40% of these Incentive Units have vested, and the remaining 60% vest in three equal annual installments beginning on April 1, 2026.

F6 · ownership.nature: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · ownership.nature: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

SEC source: 0001193125-26-096654 · ownership.xml · derivative · entry 6

Boyle James M · CIK 0002061052 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,201,584

Underlying: Class A Common Stock · 1,201,584 shares

Expires not disclosed

F6 · derivative.exercise_price: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.exercise_price: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F1 · kind: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F1 · price: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F6 · derivative.exercise_date: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.exercise_date: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F8 · derivative.exercise_date: 62% of these Incentive Units have vested, and the remaining 38% vest on October 21, 2026.

F6 · derivative.expiration_date: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · derivative.expiration_date: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

F8 · derivative.expiration_date: 62% of these Incentive Units have vested, and the remaining 38% vest on October 21, 2026.

F6 · ownership.nature: Reflect incentive units of Medline Holdings, LP ("Incentive Units"), which are "profit interests" having economic characteristics similar to stock appreciation rights. Vested Incentive Units are convertible, at the holder's election, into a number of Common Units generally equal to (a) the product of the number of vested Incentive Units to be converted with a given per unit participation threshold and then-current difference between the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock) and the per unit participation threshold of such vested Incentive Units divided by (b) the per unit value of a Common Unit at the time of the conversion (based on the public trading price of a share of Class A Common Stock), subject to certain adjustments.

F7 · ownership.nature: (Continued from Footnote 6 above) Common Units are exchangeable on a one-for-one basis for shares of Class A Common Stock pursuant to the terms of the Exchange Agreement. These Incentive Units have no expiration date. Such Incentive Units are held indirectly through Medline Management Aggregator LLC.

SEC source: 0001193125-26-096654 · ownership.xml · derivative · entry 5

Boyle James M · CIK 0002061052 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 514,876

Underlying: Class A Common Stock · 514,876 shares

Expires not disclosed

F5 · derivative.exercise_price: Pursuant to the terms of an exchange agreement, dated as of December 16, 2025 (the "Exchange Agreement"), holders have the right to exchange their Common Units for shares of the Class A Common Stock on a one-for-one basis, subject to customary conversion rate adjustments for stock splits, stock dividends and reclassifications. These exchange rights do not expire. Such Common Units are held indirectly through Medline Management Aggregator LLC.

F1 · kind: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F1 · price: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F5 · derivative.exercise_date: Pursuant to the terms of an exchange agreement, dated as of December 16, 2025 (the "Exchange Agreement"), holders have the right to exchange their Common Units for shares of the Class A Common Stock on a one-for-one basis, subject to customary conversion rate adjustments for stock splits, stock dividends and reclassifications. These exchange rights do not expire. Such Common Units are held indirectly through Medline Management Aggregator LLC.

F5 · derivative.expiration_date: Pursuant to the terms of an exchange agreement, dated as of December 16, 2025 (the "Exchange Agreement"), holders have the right to exchange their Common Units for shares of the Class A Common Stock on a one-for-one basis, subject to customary conversion rate adjustments for stock splits, stock dividends and reclassifications. These exchange rights do not expire. Such Common Units are held indirectly through Medline Management Aggregator LLC.

F3 · ownership.nature: These securities are held by a family trust of which the Reporting Person's spouse is the trustee.

F5 · ownership.nature: Pursuant to the terms of an exchange agreement, dated as of December 16, 2025 (the "Exchange Agreement"), holders have the right to exchange their Common Units for shares of the Class A Common Stock on a one-for-one basis, subject to customary conversion rate adjustments for stock splits, stock dividends and reclassifications. These exchange rights do not expire. Such Common Units are held indirectly through Medline Management Aggregator LLC.

SEC source: 0001193125-26-096654 · ownership.xml · derivative · entry 4

Boyle James M · CIK 0002061052 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 24,313

Underlying: Class A Common Stock · 24,313 shares

Expires not disclosed

F5 · derivative.exercise_price: Pursuant to the terms of an exchange agreement, dated as of December 16, 2025 (the "Exchange Agreement"), holders have the right to exchange their Common Units for shares of the Class A Common Stock on a one-for-one basis, subject to customary conversion rate adjustments for stock splits, stock dividends and reclassifications. These exchange rights do not expire. Such Common Units are held indirectly through Medline Management Aggregator LLC.

F1 · kind: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F1 · price: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F5 · derivative.exercise_date: Pursuant to the terms of an exchange agreement, dated as of December 16, 2025 (the "Exchange Agreement"), holders have the right to exchange their Common Units for shares of the Class A Common Stock on a one-for-one basis, subject to customary conversion rate adjustments for stock splits, stock dividends and reclassifications. These exchange rights do not expire. Such Common Units are held indirectly through Medline Management Aggregator LLC.

F5 · derivative.expiration_date: Pursuant to the terms of an exchange agreement, dated as of December 16, 2025 (the "Exchange Agreement"), holders have the right to exchange their Common Units for shares of the Class A Common Stock on a one-for-one basis, subject to customary conversion rate adjustments for stock splits, stock dividends and reclassifications. These exchange rights do not expire. Such Common Units are held indirectly through Medline Management Aggregator LLC.

F5 · ownership.nature: Pursuant to the terms of an exchange agreement, dated as of December 16, 2025 (the "Exchange Agreement"), holders have the right to exchange their Common Units for shares of the Class A Common Stock on a one-for-one basis, subject to customary conversion rate adjustments for stock splits, stock dividends and reclassifications. These exchange rights do not expire. Such Common Units are held indirectly through Medline Management Aggregator LLC.

SEC source: 0001193125-26-096654 · ownership.xml · nonDerivative · entry 2

Boyle James M · CIK 0002061052 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 514,876

F1 · kind: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F2 · shares: Shares of the Issuer's Class B common stock ("Class B Common Stock") have no economic value and have one vote per share. One share of Class B Common Stock is issued for each common unit of Medline Holdings, LP ("Common Units") held. Upon an exchange of Common Units for shares of the Issuer's Class A common stock ("Class A Common Stock"), an equivalent number of shares of Class B Common Stock held by such holder will be automatically cancelled.

F1 · price: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F3 · ownership.nature: These securities are held by a family trust of which the Reporting Person's spouse is the trustee.

SEC source: 0001193125-26-096654 · ownership.xml · nonDerivative · entry 1

Boyle James M · CIK 0002061052 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,313

F1 · kind: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.

F2 · shares: Shares of the Issuer's Class B common stock ("Class B Common Stock") have no economic value and have one vote per share. One share of Class B Common Stock is issued for each common unit of Medline Holdings, LP ("Common Units") held. Upon an exchange of Common Units for shares of the Issuer's Class A common stock ("Class A Common Stock"), an equivalent number of shares of Class B Common Stock held by such holder will be automatically cancelled.

F1 · price: These securities were acquired in connection with the reclassification of the interests of Medline Holdings, LP prior to the Issuer's initial public offering (as more fully described in the Registration Statement on Form S-1). These securities were previously reported on the Reporting Person's Form 3 filed on December 17, 2025.