Portillo's (PTLO) CEO awarded 271,739 restricted stock units

Rhea-AI Filing Summary

Patterson Brett reported acquisition or exercise transactions in this Form 4 filing.

Portillo's Inc. President & CEO Brett Patterson received an equity grant of 271,739 shares in the form of restricted stock units on April 15, 2026. The award was granted at no cash cost to him.

These restricted stock units vest over time, with one-third vesting on each of the first three anniversaries of the grant date, contingent on his continued service. Following this grant, Patterson holds 340,823 shares directly.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Patterson Brett

Role President & CEO

Type	Security	Shares	Price	Value
Grant/Award	Class A common stock	271,739	$0.00	--

Holdings After Transaction: Class A common stock — 340,823 shares (Direct)

Footnotes (1)

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Key Figures

Restricted stock units granted: 271,739 units Grant price per share: $0.0000 Holdings after transaction: 340,823 shares +1 more

4 metrics

Restricted stock units granted 271,739 units Equity award to CEO on April 15, 2026

Grant price per share $0.0000 Compensation grant, no cash paid by CEO

Holdings after transaction 340,823 shares Direct ownership after April 15, 2026 grant

Vesting schedule One-third per year over 3 years First three anniversaries of April 15, 2026 grant

Key Terms

restricted stock units, time-based vesting, grant, award, or other acquisition, Form 4

4 terms

restricted stock units financial

"Represents restricted stock units subject to time-based vesting granted on April 15, 2026"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

time-based vesting financial

"restricted stock units subject to time-based vesting granted on April 15, 2026"

Time-based vesting is a schedule that gives employees or contractors ownership of granted stock or options gradually as they remain with a company, like unlocking rewards in a loyalty program the longer you stick around. For investors, it matters because it affects future share supply, management incentives and staff retention — all of which can influence company performance and dilution of existing shareholders.

grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Form 4 Insider Transactions: What Each Field Means →

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^*

Patterson Brett

(Last) (First) (Middle)

C/O PORTILLO'S INC.

2001 SPRING ROAD, SUITE 400

(Street)

OAK BROOK ILLINOIS 60523

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Portillo's Inc. [ PTLO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President & CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/15/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	04/15/2026		A		271,739(1)	A	$0	340,823	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 restricted stock units subject to time-based vesting granted on April 15, 2026, one-third of which vest on each of the first three anniversaries of the grant date, subject to the Reporting Person's continued service with the Issuer and the terms of the applicable award agreement.

Remarks:

	/s/ Kelly M. Kaiser, as attorney-in-fact for Brett Patterson	04/16/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What did Portillo's (PTLO) CEO acquire in this insider transaction?

Portillo's President & CEO Brett Patterson received 271,739 restricted stock units tied to Class A common stock. The grant is a form of equity compensation, awarded at no cash cost, and is designed to align his interests with long-term shareholder value through multi-year vesting.

How many Portillo's (PTLO) shares does the CEO hold after this grant?

After the April 15, 2026 grant, Brett Patterson is reported to hold 340,823 shares directly. This figure includes the newly granted restricted stock units, which will vest over time according to the award’s schedule, assuming his continued service with Portillo's Inc.

What is the vesting schedule for the 271,739 Portillo's (PTLO) RSUs?

The 271,739 restricted stock units vest in three equal installments. One-third of the award vests on each of the first three anniversaries of the April 15, 2026 grant date, provided Brett Patterson continues serving Portillo's Inc. under the applicable award agreement.

Did the Portillo's (PTLO) CEO pay for these newly reported shares?

No, the reported acquisition reflects an equity grant, not a market purchase. The Form 4 lists a price per share of $0.0000, indicating these restricted stock units were awarded as compensation under Portillo's equity plan rather than bought in the open market.

Is this Portillo's (PTLO) insider transaction a market buy or sell?

This transaction is classified as a grant or award acquisition, not an open-market buy or sell. The Form 4 uses transaction code “A,” indicating restricted stock units were granted to Brett Patterson as compensation, subject to time-based vesting conditions and continued service.