Sec Form 3 Filing - Stonepeak GP Holdings III LP @ Lineage, Inc. - 2024-07-25

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Stonepeak GP Holdings III LP 2. Issuer Name and Ticker or Trading Symbol Lineage, Inc. [ LINE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) X __ Other (specify below) See Remarks (Last) (First) (Middle) 55 HUDSON YARDS, 550 W. 34TH STREET, 48TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 07/25/2024 (Street) NEW YORK, NY10001 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Stonepeak GP Holdings III LP 55 HUDSON YARDS 550 W. 34TH STREET, 48TH FLOOR NEW YORK, NY10001 See Remarks Stonepeak GP Investors III LLC 55 HUDSON YARDS 550 W. 34TH STREET, 48TH FLOOR NEW YORK, NY10001 See Remarks Stonepeak GP Investors Holdings LP 55 HUDSON YARDS 550 W. 34 TH STREET, 48TH FLOOR NEW YORK, NY10001 See Remarks Stonepeak GP Investors Upper Holdings LP 55 HUDSON YARDS 550 W. 34TH STREET, 48TH FLOOR NEW YORK, NY10001 See Remarks Stonepeak GP Investors Holdings Manager LLC 55 HUDSON YARDS 550 W. 34TH STREET, 48TH FLOOR NEW YORK, NY10001 See Remarks Dorrell Michael B. 55 HUDSON YARDS 550 W. 34TH STREET, 48TH FLOOR NEW YORK, NY10001 See Remarks Signatures See Exhibit 99.1: Signatures 07/25/2024 Signature of Reporting Person Date

Explanation of Responses:

Remarks: Each of Stonepeak Aspen Holdings LLC ("Fund I"); Stonepeak Aspen Holdings II LLC ("Fund II"); Stonepeak Aspen Holdings III LLC ("Fund III"); Stonepeak Aspen Holdings IV LLC ("Fund IV"); Stonepeak Aspen Holdings V LLC ("Fund V"); Stonepeak Infrastructure Fund III (AIV III) LP ("AIV III"), the managing member of Fund I and Fund II; Stonepeak Aspen (Co-Invest) Holdings LP ("Co-Invest I"), the managing member of Fund III and Fund IV; Stonepeak Aspen (Co-Invest) Holdings II LP ("Co-Invest II"), the managing member of Fund V; Stonepeak Associates III LLC ("Associates III"), the general partner of each of AIV III, Co-Invest I and Co-Invest II; Stonepeak GP Holdings III LP ("Holdings III"), the sole member of Associates III; Stonepeak GP Investors III LLC ("Investors III"), the general partner of Holdings III; Stonepeak GP Investors Holdings LP ("Investors Holdings"), the managing member of Investors III; Stonepeak GP Investors Upper Holdings LP ("Upper Holdings"), the general partner of Investors Holdings; Stonepeak GP Investors Holdings Manager LLC ("Holdings Manager"), the general partner of Upper Holdings; and Mr. Michael Dorrell, the sole member of Holdings Manager (collectively, the "Reporting Persons") are jointly filing this Form 3 pursuant to Rule 16a-3(j) under the Exchange Act but, because no more than 10 reporting persons can file any one Form 3 through the SEC's EDGAR system, Fund I, Fund II, Fund III, Fund IV, Fund V, AIV III, Co-Invest I, Co-Invest II and Associates III have jointly filed with the other Reporting Persons on a separate Form 3 filing submitted on the same day hereof. Solely for purposes of Section 16 of the Exchange Act, each of the Reporting Persons may be deemed to be a director-by-deputization by virtue of Fund I's contractual right to designate two persons to serve on the board of directors of the Issuer (the "Board"). James Wyper and Luke Taylor serve as Fund I's designated directors on the Board.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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