Charles N. Mills - 16 Dec 2025 Form 4 Insider Report for Medline Inc. (MDLN)

Role: Director
Signature: /s/ Nicole Fritz, Attorney-in-Fact
Issuer symbol: MDLN
Transactions as of: 16 Dec 2025
Net transactions value: +$74,799,990
Form type: 4
Filing time: 22 Dec 2025, 16:30:04 UTC
Next filing: 17 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Mills Charles N.	Director	C/O MEDLINE INC., 3 LAKES DRIVE, NORTHFIELD	/s/ Nicole Fritz, Attorney-in-Fact	22 Dec 2025	0001460221

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MDLN	Class B Common Stock	Award		+64,005			64,005	16 Dec 2025	See Footnote	F1, F2
transaction	MDLN	Class A Common Stock	Purchase	$70,799,991	+2,441,379		$29.00	2,441,379	18 Dec 2025	See Footnote	F3, F4
transaction	MDLN	Class A Common Stock	Purchase	$3,999,999	+137,931		$29.00	137,931	18 Dec 2025	By Spouse	F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MDLN	Common Units of Medline Holdings, LP	Award		+64,005			64,005	16 Dec 2025	Class A Common Stock	64,005		See Footnote	F1, F2, F5

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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	These securities are held by a trust for the benefit of the Reporting Person and for which the Reporting Person serves as a trustee.
F3	Reflects shares of Class A Common Stock of the Issuer acquired in the initial public offering of Class A Common Stock of the Issuer at the initial public offering price and on the same terms as the other purchasers in the initial public offering.
F4	The securities are held for the benefit of the Reporting Person by a limited liability company.
F5	Pursuant to the terms of an exchange agreement, dated as of December 16, 2025, holders have the right to exchange their common units of Medline Holdings, LP for shares of the Issuer's 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.