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[Form 4] Portillo's Inc. Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
4
Rhea-AI Filing Summary

Portillo's Inc. (PTLO) insider disposition reported by Chief Development Officer Michael K. Ellis. The filing shows a sale of 1,133 shares of Class A common stock on 08/29/2025 at a reported price of $7.08 per share to satisfy tax withholding on vested awards. After the transaction, Mr. Ellis beneficially owned 48,328 shares, held directly. The form indicates the sale was a withholding to cover taxes on a previously disclosed award, not an open-market discretionary sale. The filing is signed by an attorney-in-fact on 09/02/2025.

Segnalazione di cessione da parte dell'insider Michael K. Ellis, Chief Development Officer di Portillo's Inc. (PTLO). La comunicazione indica la vendita di 1.133 azioni di azioni ordinarie di Classe A il 29/08/2025 al prezzo riportato di $7,08 per azione per soddisfare il prelievo fiscale su premi maturati. Dopo l'operazione, il sig. Ellis deteneva direttamente 48.328 azioni. Il modulo specifica che la vendita è stata effettuata come ritenuta per tasse su un premio già comunicato in precedenza e non come vendita discrezionale sul mercato aperto. Il documento è stato firmato da un mandatario il 02/09/2025.

Notificación de disposición por parte del insider Michael K. Ellis, Chief Development Officer de Portillo's Inc. (PTLO). El informe muestra la venta de 1.133 acciones ordinarias Clase A el 29/08/2025 a un precio reportado de $7,08 por acción para cubrir la retención fiscal sobre premios ya vencidos. Tras la transacción, el Sr. Ellis poseía directamente 48.328 acciones. El formulario indica que la venta se realizó como retención para impuestos sobre una adjudicación previamente divulgada y no como una venta discrecional en el mercado abierto. El documento fue firmado por un apoderado el 02/09/2025.

Portillo's Inc.(PTLO)� 최고개발책임�(Chief Development Officer) Michael K. Ellis� 내부� 처분 신고. 신고서에 따르� 2025-08-29� Class A 보통� 1,133주를 주당 보고 가� $7.08� 매도하여 확정� 보상� 대� 세금 원천징수� 충당했다� 나와 있습니다. 거래 � Ellis 씨는 직접 48,328주를 보유했습니다. 서식에는 � 매도� 이전� 공시� 보상� 대� 세금 원천징수 목적� 처분이며, 공개 시장에서� 임의 매도� 아니라고 명시되어 있습니다. 서류� 2025-09-02� 법률대리인� 의해 서명되었습니�.

Opération d'initié signalée par Michael K. Ellis, Chief Development Officer de Portillo's Inc. (PTLO). Le dépôt indique la vente de 1 133 actions ordinaires de classe A le 29/08/2025 au prix déclaré de 7,08 $ par action afin de couvrir la retenue d'impôt sur des attributions acquises. Après la transaction, M. Ellis possédait directement 48 328 actions. Le formulaire précise qu'il s'agissait d'une retenue pour couvrir des impôts sur une attribution déjà divulguée et non d'une vente discrétionnaire sur le marché ouvert. Le document a été signé par un mandataire le 02/09/2025.

Insider-Transaktion gemeldet durch Michael K. Ellis, Chief Development Officer von Portillo's Inc. (PTLO). Die Meldung weist einen Verkauf von 1.133 Aktien der Klasse A am 29.08.2025 zu einem gemeldeten Preis von $7,08 pro Aktie aus, um die Steuerabzüge auf fällige Zuteilungen zu erfüllen. Nach der Transaktion hielt Herr Ellis direkt 48.328 Aktien. Das Formular stellt klar, dass es sich um eine einbehaltene Steuerzahlung auf eine zuvor bekannt gegebene Zuteilung handelte und nicht um einen freiwilligen Verkauf am offenen Markt. Das Dokument wurde am 02.09.2025 von einem Bevollmächtigten unterschrieben.

Positive
  • None.
Negative
  • None.

Insights

TL;DR: Small, routine withholding sale to cover taxes; limited impact on ownership or market.

The disposition of 1,133 shares at $7.08 per share appears to be a tax-withholding action tied to vesting rather than a voluntary cash sale for liquidity. The post-transaction beneficial ownership of 48,328 shares remains intact at the direct level, suggesting ongoing alignment with the company. Given the size relative to typical insider stakes and no indication of additional disposals, this transaction is unlikely to be material to PTLO's capital structure or market supply.

TL;DR: Compliance-focused filing showing proper Section 16 reporting and use of withholding for tax obligations.

The Form 4 documents required Section 16 reporting and notes the nature of the transaction as tax withholding on vested awards. The filing is executed by an attorney-in-fact, which is a standard practice. There are no indications of changes in role or additional derivative activity. From a governance perspective, this disclosure meets routine transparency expectations for insider award settlements.

Segnalazione di cessione da parte dell'insider Michael K. Ellis, Chief Development Officer di Portillo's Inc. (PTLO). La comunicazione indica la vendita di 1.133 azioni di azioni ordinarie di Classe A il 29/08/2025 al prezzo riportato di $7,08 per azione per soddisfare il prelievo fiscale su premi maturati. Dopo l'operazione, il sig. Ellis deteneva direttamente 48.328 azioni. Il modulo specifica che la vendita è stata effettuata come ritenuta per tasse su un premio già comunicato in precedenza e non come vendita discrezionale sul mercato aperto. Il documento è stato firmato da un mandatario il 02/09/2025.

Notificación de disposición por parte del insider Michael K. Ellis, Chief Development Officer de Portillo's Inc. (PTLO). El informe muestra la venta de 1.133 acciones ordinarias Clase A el 29/08/2025 a un precio reportado de $7,08 por acción para cubrir la retención fiscal sobre premios ya vencidos. Tras la transacción, el Sr. Ellis poseía directamente 48.328 acciones. El formulario indica que la venta se realizó como retención para impuestos sobre una adjudicación previamente divulgada y no como una venta discrecional en el mercado abierto. El documento fue firmado por un apoderado el 02/09/2025.

Portillo's Inc.(PTLO)� 최고개발책임�(Chief Development Officer) Michael K. Ellis� 내부� 처분 신고. 신고서에 따르� 2025-08-29� Class A 보통� 1,133주를 주당 보고 가� $7.08� 매도하여 확정� 보상� 대� 세금 원천징수� 충당했다� 나와 있습니다. 거래 � Ellis 씨는 직접 48,328주를 보유했습니다. 서식에는 � 매도� 이전� 공시� 보상� 대� 세금 원천징수 목적� 처분이며, 공개 시장에서� 임의 매도� 아니라고 명시되어 있습니다. 서류� 2025-09-02� 법률대리인� 의해 서명되었습니�.

Opération d'initié signalée par Michael K. Ellis, Chief Development Officer de Portillo's Inc. (PTLO). Le dépôt indique la vente de 1 133 actions ordinaires de classe A le 29/08/2025 au prix déclaré de 7,08 $ par action afin de couvrir la retenue d'impôt sur des attributions acquises. Après la transaction, M. Ellis possédait directement 48 328 actions. Le formulaire précise qu'il s'agissait d'une retenue pour couvrir des impôts sur une attribution déjà divulguée et non d'une vente discrétionnaire sur le marché ouvert. Le document a été signé par un mandataire le 02/09/2025.

Insider-Transaktion gemeldet durch Michael K. Ellis, Chief Development Officer von Portillo's Inc. (PTLO). Die Meldung weist einen Verkauf von 1.133 Aktien der Klasse A am 29.08.2025 zu einem gemeldeten Preis von $7,08 pro Aktie aus, um die Steuerabzüge auf fällige Zuteilungen zu erfüllen. Nach der Transaktion hielt Herr Ellis direkt 48.328 Aktien. Das Formular stellt klar, dass es sich um eine einbehaltene Steuerzahlung auf eine zuvor bekannt gegebene Zuteilung handelte und nicht um einen freiwilligen Verkauf am offenen Markt. Das Dokument wurde am 02.09.2025 von einem Bevollmächtigten unterschrieben.

SEC Form 4
FORM 4 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
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Ellis Michael K

(Last) (First) (Middle)
C/O PORTILLO'S INC.
2001 SPRING ROAD, SUITE 400

(Street)
OAK BROOK IL 60523

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Portillo's Inc. [ PTLO ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Chief Development Officer
3. Date of Earliest Transaction (Month/Day/Year)
08/29/2025
4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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
Class A common stock 08/29/2025 F 1,133(1) D $7.08 48,328 D
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 (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 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 (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (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: 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
Explanation of Responses:
1. Represents shares deducted to satisfy tax withholding obligations on the vesting of a previously disclosed award.
Remarks:
/s/ Kelly M. Kaiser, as attorney-in-fact for Michael K. Ellis 09/02/2025
** 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 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What transaction did Michael K. Ellis report on Form 4 for PTLO?

He reported a disposition of 1,133 shares of Class A common stock on 08/29/2025 at $7.08 per share to satisfy tax withholding on vested awards.

How many PTLO shares does Michael K. Ellis own after the reported transaction?

Following the transaction, he beneficially owned 48,328 shares, held directly.

Was the reported sale an open-market sale or a tax-related withholding?

The filing explains the shares were deducted to satisfy tax withholding obligations on the vesting of a previously disclosed award.

When was the Form 4 signed and who signed it?

The Form 4 was signed by Kelly M. Kaiser, as attorney-in-fact for Michael K. Ellis on 09/02/2025.

Does the Form 4 disclose any derivative transactions or additional securities classes?

No. The filing only reports a non-derivative disposition of Class A common stock and contains no entries in the derivative securities section.
Portillo'S Inc.

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