SEC Form 3

FORM 3

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

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1. Name and Address of Reporting Person* LUBIN RICHARD K (Last) (First) (Middle) C/O/ BERKSHIRE PARTNERS LLC 200 CLARENDON STREET, 35TH FLOOR (Street) BOSTON MA 02116 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 10/21/2021	3. Issuer Name and Ticker or Trading Symbol Portillo's Inc. [ PTLO ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class A common stock	13,133,967(1)	I	By Berkshire Fund VIII-A, L.P.(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
LLC Units of PHD Group Holdings LLC	(2)	(2)	Class A common stock	31,609,401(3)	(2)	I	By Berkshire Fund VIII, L.P.(3)
LLC Units of PHD Group Holdings LLC	(2)	(2)	Class A common stock	868,687(4)	(2)	I	By Berkshire Investors III LLC(4)
LLC Units of PHD Group Holdings LLC	(2)	(2)	Class A common stock	2,861,078(5)	(2)	I	By Berkshire Investors IV LLC(5)

Explanation of Responses:

1. Represents shares of Class A common stock of the Issuer held by Berkshire Fund VIII-A, L.P. ("VIII-A"), which may be deemed to be beneficially owned by Berkshire Partners Holdings LLC ("BPH"); BPSP, L.P. ("BPSP"); Eighth Berkshire Associates LLC ("8BA"), its general partner; and Berkshire Partners L.P. ("BP"), its investment adviser. The Reporting Person is a member of BPH, BPSP, 8BA and BP. By virtue of the relationships described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by VIII-A and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of any securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), or for any other purpose.

2. Pursuant to the Second Amended and Restated Limited Liability Company Agreement of PHD Group Holdings LLC ("PHD Group Holdings"), dated as of October 20, 2021, LLC Units (as defined therein) held by the Reporting Persons are exchangeable for shares of Class A common stock on a one-for-one basis, subject to certain exceptions, conditions and adjustments. The LLC Units have no expiration date. At the time of any such exchange, an equal number of shares of Class B common stock of the Issuer held by the Reporting Person, which have no economic value and entitle holders thereof to one vote per share on all matters on which stockholders of the Issuer are entitled to vote generally, will be cancelled.

3. Represents LLC Units of PHD Group Holdings held by Berkshire Fund VIII, L.P. ("VIII"), which may be deemed to be beneficially owned by BPH; BPSP; 8BA, its general partner; and BP, its investment adviser. The Reporting Person is a member of BPH, BPSP, 8BA and BP. By virtue of the relationships described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by VIII and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of any securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

4. Represents LLC Units of PHD Group Holdings held by Berkshire Investors III LLC ("BI III"). The Reporting Person is a member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

5. Represents LLC Units of PHD Group Holdings held by Berkshire Investors IV LLC ("BI IV"). The Reporting Person is a member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

Remarks:

	By: Susan Shelton, attorney-in-fact for Richard Lubin	10/21/2021
	** Signature of Reporting Person	Date
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 5 (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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