BX Mozart ML-1 Holdco L.P. - 21 May 2026 Form 4 Insider Report for Medline Inc. (MDLN)

Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
26 May 2026, 16:30:20 UTC
Prior SEC filing
06 Mar 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
BX MOZART ML-1 HOLDCO L.P. By: BX Mozart ML-1 Holdco GP L.L.C., its general partner, By: /s/ Robert Brooks Name: Robert Brooks, Title: Vice President
Filing notes and source

Key filing fact

BX Mozart ML-1 Holdco L.P. filed Form 4 for Medline Inc. (MDLN) on 26 May 2026.

Key facts

  • This page summarizes BX Mozart ML-1 Holdco L.P.'s Form 4 filing for Medline Inc. (MDLN).
  • 6 reported transactions and 8 derivative rows are listed below.
  • Accepted by SEC: 26 May 2026, 16:30.

Change

  • Previous filing in this sequence was filed on 06 Mar 2026.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (4)

CIK 0002102428 Primary reporting owner

BX Mozart ML-1 Holdco L.P.

Relationship
10%+ Owner
Address
C/O BLACKSTONE INC., 345 PARK AVENUE, NEW YORK
Signature
BX MOZART ML-1 HOLDCO L.P. By: BX Mozart ML-1 Holdco GP L.L.C., its general partner, By: /s/ Robert Brooks Name: Robert Brooks, Title: Vice President
Signature date
26 May 2026
CIK 0002108063

Mozart Aggregator UNLV Holdco L.P.

Relationship
10%+ Owner
Address
C/O BLACKSTONE INC., 345 PARK AVENUE, NEW YORK
Signature
MOZART AGGREGATOR UNLV HOLDCO L.P. By: BCP 8 Holdings Mozart Manager L.L.C., its general partner, By: BMA VIII L.L.C., its managing member, By: /s/ Robert Brooks Name: Robert Brooks, Title: Authorized Signatory
Signature date
26 May 2026
CIK 0002102570

BX Mozart ML-1 Holdco GP L.L.C.

Relationship
10%+ Owner
Address
C/O BLACKSTONE INC., 345 PARK AVENUE, NEW YORK
Signature
BX MOZART ML-1 HOLDCO GP L.L.C. By: /s/ Robert Brooks Name: Robert Brooks, Title: Vice President
Signature date
26 May 2026
CIK 0002094487

BCP Mozart Aggregator L.P.

Relationship
10%+ Owner
Address
C/O BLACKSTONE INC., 345 PARK AVENUE, NEW YORK
Signature
BCP MOZART AGGREGATOR L.P., By: BCP 8 Holdings Mozart Manager L.L.C., its general partner, By: BMA VIII L.L.C., its managing member, By: /s/ Robert Brooks Name: Robert Brooks Title: Authorized Signatory
Signature date
26 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MDLN transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares
+9,858,774
Change %
+96797%
Price
Shares after
9,868,959
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F1, F2, F4, F5, F6
MDLN transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares
+9,858,774
Change %
+96797%
Price
Shares after
9,868,959
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F1, F2, F4, F5, F6
MDLN transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares
+9,858,774
Change %
+96797%
Price
Shares after
9,868,959
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F1, F2, F4, F5, F6
MDLN transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares
+9,858,774
Change %
+96797%
Price
Shares after
9,868,959
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F1, F2, F4, F5, F6
MDLN transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares
+1,489,924
Change %
+96811%
Price
Shares after
1,491,463
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F1, F3, F4, F5, F6
MDLN transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares
+1,489,924
Change %
+96811%
Price
Shares after
1,491,463
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F1, F3, F4, F5, F6
MDLN transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares
+1,489,924
Change %
+96811%
Price
Shares after
1,491,463
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F1, F3, F4, F5, F6
MDLN transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares
+1,489,924
Change %
+96811%
Price
Shares after
1,491,463
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F1, F3, F4, F5, F6
MDLN transaction

Class B Common Stock

Other

Transaction value
Shares
-9,858,774
Change %
-18%
Price
Shares after
44,770,628
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F2, F4, F5, F6, F10
MDLN transaction

Class B Common Stock

Other

Transaction value
Shares
-9,858,774
Change %
-18%
Price
Shares after
44,770,628
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F2, F4, F5, F6, F10
MDLN transaction

Class B Common Stock

Other

Transaction value
Shares
-9,858,774
Change %
-18%
Price
Shares after
44,770,628
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F2, F4, F5, F6, F10
MDLN transaction

Class B Common Stock

Other

Transaction value
Shares
-9,858,774
Change %
-18%
Price
Shares after
44,770,628
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F2, F4, F5, F6, F10
MDLN transaction

Class B Common Stock

Other

Transaction value
Shares
-1,489,924
Change %
-18%
Price
Shares after
6,766,039
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F3, F4, F5, F6, F10
MDLN transaction

Class B Common Stock

Other

Transaction value
Shares
-1,489,924
Change %
-18%
Price
Shares after
6,766,039
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F3, F4, F5, F6, F10
MDLN transaction

Class B Common Stock

Other

Transaction value
Shares
-1,489,924
Change %
-18%
Price
Shares after
6,766,039
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F3, F4, F5, F6, F10
MDLN transaction

Class B Common Stock

Other

Transaction value
Shares
-1,489,924
Change %
-18%
Price
Shares after
6,766,039
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F3, F4, F5, F6, F10
MDLN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
109,250,239
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F4, F5, F6, F7
MDLN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
109,250,239
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F4, F5, F6, F7
MDLN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
109,250,239
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F4, F5, F6, F7
MDLN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
109,250,239
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F4, F5, F6, F7
MDLN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
12,507,704
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F4, F5, F6, F8
MDLN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
12,507,704
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F4, F5, F6, F8
MDLN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
12,507,704
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F4, F5, F6, F8
MDLN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
12,507,704
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F4, F5, F6, F8
MDLN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
2,428,681
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F4, F5, F6, F9
MDLN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
2,428,681
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F4, F5, F6, F9
MDLN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
2,428,681
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F4, F5, F6, F9
MDLN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
2,428,681
Date
21 May 2026
Ownership
See Footnotes
Footnotes
F4, F5, F6, F9

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MDLN transaction Derivative

Common Units of Medline Holdings, LP

Conversion of derivative security

Transaction value
Shares
-9,858,774
Change %
-18%
Price
$0.000000*
Shares after
44,770,628
Date
21 May 2026
Ownership
See Footnotes
Underlying class
Class A Common Stock
Underlying amount
9,858,774
Exercise price
Footnotes
F1, F2, F4, F5, F6
MDLN transaction Derivative

Common Units of Medline Holdings, LP

Conversion of derivative security

Transaction value
Shares
-9,858,774
Change %
-18%
Price
$0.000000*
Shares after
44,770,628
Date
21 May 2026
Ownership
See Footnotes
Underlying class
Class A Common Stock
Underlying amount
9,858,774
Exercise price
Footnotes
F1, F2, F4, F5, F6
MDLN transaction Derivative

Common Units of Medline Holdings, LP

Conversion of derivative security

Transaction value
Shares
-9,858,774
Change %
-18%
Price
$0.000000*
Shares after
44,770,628
Date
21 May 2026
Ownership
See Footnotes
Underlying class
Class A Common Stock
Underlying amount
9,858,774
Exercise price
Footnotes
F1, F2, F4, F5, F6
MDLN transaction Derivative

Common Units of Medline Holdings, LP

Conversion of derivative security

Transaction value
Shares
-9,858,774
Change %
-18%
Price
$0.000000*
Shares after
44,770,628
Date
21 May 2026
Ownership
See Footnotes
Underlying class
Class A Common Stock
Underlying amount
9,858,774
Exercise price
Footnotes
F1, F2, F4, F5, F6
MDLN transaction Derivative

Common Units of Medline Holdings, LP

Conversion of derivative security

Transaction value
Shares
-1,489,924
Change %
-18%
Price
$0.000000*
Shares after
6,766,039
Date
21 May 2026
Ownership
See Footnotes
Underlying class
Class A Common Stock
Underlying amount
1,489,924
Exercise price
Footnotes
F1, F3, F4, F5, F6
MDLN transaction Derivative

Common Units of Medline Holdings, LP

Conversion of derivative security

Transaction value
Shares
-1,489,924
Change %
-18%
Price
$0.000000*
Shares after
6,766,039
Date
21 May 2026
Ownership
See Footnotes
Underlying class
Class A Common Stock
Underlying amount
1,489,924
Exercise price
Footnotes
F1, F3, F4, F5, F6
MDLN transaction Derivative

Common Units of Medline Holdings, LP

Conversion of derivative security

Transaction value
Shares
-1,489,924
Change %
-18%
Price
$0.000000*
Shares after
6,766,039
Date
21 May 2026
Ownership
See Footnotes
Underlying class
Class A Common Stock
Underlying amount
1,489,924
Exercise price
Footnotes
F1, F3, F4, F5, F6
MDLN transaction Derivative

Common Units of Medline Holdings, LP

Conversion of derivative security

Transaction value
Shares
-1,489,924
Change %
-18%
Price
$0.000000*
Shares after
6,766,039
Date
21 May 2026
Ownership
See Footnotes
Underlying class
Class A Common Stock
Underlying amount
1,489,924
Exercise price
Footnotes
F1, F3, F4, F5, F6
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 10 footnotes

Footnote F1

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 ("Common Units") for shares of Medline Inc.'s (the "Issuer") Class A common stock ("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.

Footnote F2

Reflects securities of the Issuer held directly by BX Mozart ML-1 Holdco L.P. BX Mozart ML-1 Holdco GP L.L.C. is the general partner of BX Mozart ML-1 Holdco L.P. BCP Mozart Aggregator L.P. is the managing member of BX Mozart ML-1 Holdco GP L.L.C. BCP 8 Holdings Mozart Manager L.L.C. is the general partner of BCP Mozart Aggregator L.P. BMA VIII L.L.C. is the managing member of BCP 8 Holdings Mozart Manager L.L.C.

Footnote F3

Reflects securities of the Issuer held directly by Mozart Aggregator UNLV Holdco L.P. BCP 8 Holdings Mozart Manager L.L.C. is the general partner of Mozart Aggregator UNLV Holdco L.P. BMA VIII L.L.C. is the managing member of BCP 8 Holdings Mozart Manager L.L.C.

Footnote F4

Blackstone Holdings II L.P. is the managing member of 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. is the sole member of Blackstone Holdings I/II GP L.L.C. The sole holder of the Series II preferred stock of Blackstone Inc. 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.

Footnote F5

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.

Footnote F6

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.

Footnote F7

Reflects securities of the Issuer held directly by BX Mozart ML-2 Holdco L.P. BX Mozart ML-2 Holdco GP L.L.C. is the general partner of BX Mozart ML-2 Holdco L.P. Mozart Aggregator II L.P. is the managing member of BX Mozart ML-2 Holdco GP L.L.C. Blackstone Management Associates VIII L.P. is the general partner of Mozart Aggregator II LP. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P.

Footnote F8

Reflects securities of the Issuer held directly by Mozart Aggregator II UNLV Holdco L.P. Mozart Aggregator II LP is the sole limited partner of Mozart Aggregator II UNLV Holdco L.P. Blackstone Management Associates VIII L.P. is the general partner of Mozart Aggregator II LP and of Mozart Aggregator II UNLV Holdco L.P. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P.

Footnote F9

Reflects securities of the Issuer held directly by Mozart Aggregator II LP. Blackstone Management Associates VIII L.P. is the general partner of Mozart Aggregator II LP. BMA VIII L.L.C. is the general partner of Blackstone Management Associates VIII L.P.

Footnote F10

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 held. Upon the conversion of Common Units, an equivalent number of shares of Class B Common Stock were automatically cancelled.

SEC remarks

Because no more than 10 reporting persons can file any one Form 4 through the Securities and Exchange Commission's EDGAR system, certain affiliates of the Reporting Persons have filed a separate Form 4.

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