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Kaiser Kelly M

Disclosed activity across 1 company

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42465
SEC CIK
0001992312

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Portillo's Inc.PTLO · Entity 5886General Counsel and SecretarySeptember 05, 2026September 08, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Portillo's Inc.

Report date September 05, 2026 · Filed September 08, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A common stockSEC Table I · non-derivativeDirect144,920 Reported balance After 2026-09-05 transaction · row 1
1 source row

Row 1 · 2026-09-05 · Tax withholding · Disposed 437 · Balance 144,920

F1: Represents shares deducted to satisfy tax withholding obligations on the vesting of a previously disclosed award.

Filing footnotes · ownership attribution and instrument terms

F1: Represents shares deducted to satisfy tax withholding obligations on the vesting of a previously disclosed award.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 05, 2026 Filed Sep 8, 2026 20:46 UTC Portillo's Inc. PTLO · Entity 5886 Tax withholdingClass A common stock 437 $4.42 $1,931.54
Disclosure

SEC source: 0001992312-26-000012 · wk-form4_1788900363.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 144,920

F1 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of a previously disclosed award.

Read SEC document
May 31, 2026 Filed Jun 2, 2026 20:41 UTC Portillo's Inc. PTLO · Entity 5886 Tax withholdingClass A common stock 92 $3.86 $355.12
Disclosure

SEC source: 0001992312-26-000008 · wk-form4_1780432887.xml · nonDerivative · entry 2

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 145,357

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

Read SEC document
May 31, 2026 Filed Jun 2, 2026 20:41 UTC Portillo's Inc. PTLO · Entity 5886 GrantClass A common stock 3,161 $3.86 $12,201.46
Disclosure

SEC source: 0001992312-26-000008 · wk-form4_1780432887.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 145,449

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of March 1, 2026 to May 31, 2026. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on May 29, 2026.

Read SEC document
May 02, 2026 Filed May 4, 2026 20:41 UTC Portillo's Inc. PTLO · Entity 5886 Tax withholdingClass A common stock 1,840 $6.49 $11,941.60
Disclosure

SEC source: 0001992312-26-000006 · wk-form4_1777927294.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,288

F1 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of a previously disclosed award.

Read SEC document
April 15, 2026 Filed Apr 16, 2026 20:33 UTC Portillo's Inc. PTLO · Entity 5886 Tax withholdingClass A common stock 1,805 $5.52 $9,963.60
Disclosure

SEC source: 0001992312-26-000004 · wk-form4_1776371626.xml · nonDerivative · entry 2

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 144,128

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of previously disclosed awards.

Read SEC document
April 15, 2026 Filed Apr 16, 2026 20:33 UTC Portillo's Inc. PTLO · Entity 5886 GrantClass A common stock 40,760 $0.00 $0.00
Disclosure

SEC source: 0001992312-26-000004 · wk-form4_1776371626.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 145,933

F1 · shares: 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.

Read SEC document
February 28, 2026 Filed Mar 4, 2026 00:28 UTC Portillo's Inc. PTLO · Entity 5886 Tax withholdingClass A common stock 25 $4.81 $120.25
Disclosure

SEC source: 0001992312-26-000002 · wk-form4_1772584100.xml · nonDerivative · entry 2

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,173

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

Read SEC document
February 28, 2026 Filed Mar 4, 2026 00:28 UTC Portillo's Inc. PTLO · Entity 5886 GrantClass A common stock 730 $4.81 $3,511.30
Disclosure

SEC source: 0001992312-26-000002 · wk-form4_1772584100.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,198

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of December 1, 2025 to February 28, 2026. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on February 27, 2026.

Read SEC document
November 30, 2025 Filed Dec 2, 2025 21:30 UTC Portillo's Inc. PTLO · Entity 5886 Tax withholdingClass A common stock 2 $4.70 $9.40
Disclosure

SEC source: 0001992312-25-000012 · wk-form4_1764711027.xml · nonDerivative · entry 2

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,468

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

Read SEC document
November 30, 2025 Filed Dec 2, 2025 21:30 UTC Portillo's Inc. PTLO · Entity 5886 GrantClass A common stock 95 $4.70 $446.50
Disclosure

SEC source: 0001992312-25-000012 · wk-form4_1764711027.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,470

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of September 1, 2025 to November 30, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on November 28, 2025.

Read SEC document
October 31, 2025 Filed Nov 3, 2025 21:49 UTC Portillo's Inc. PTLO · Entity 5886 GrantClass A common stock 35,514 $0.00 $0.00
Disclosure

SEC source: 0001992312-25-000010 · wk-form4_1762206547.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,375

F1 · shares: Represents restricted stock units granted on October 31, 2025, which will vest in full on October 31, 2026, subject to the terms of the applicable award agreement.

Read SEC document
September 05, 2025 Filed Sep 5, 2025 21:50 UTC Portillo's Inc. PTLO · Entity 5886 Tax withholdingClass A common stock 437 $6.82 $2,980.34
Disclosure

SEC source: 0001992312-25-000008 · wk-form4_1757109028.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,861

F1 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of a previously disclosed award.

Read SEC document
August 31, 2025 Filed Sep 3, 2025 21:58 UTC Portillo's Inc. PTLO · Entity 5886 Tax withholdingClass A common stock 24 $6.37 $152.88
Disclosure

SEC source: 0001992312-25-000006 · wk-form4_1756936715.xml · nonDerivative · entry 2

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,298

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

Read SEC document
August 31, 2025 Filed Sep 3, 2025 21:58 UTC Portillo's Inc. PTLO · Entity 5886 GrantClass A common stock 827 $6.37 $5,267.99
Disclosure

SEC source: 0001992312-25-000006 · wk-form4_1756936715.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,322

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of June 1, 2025 to August 31, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on August 29, 2025.

Read SEC document
August 07, 2025 Filed Aug 8, 2025 20:43 UTC Portillo's Inc. PTLO · Entity 5886 PurchaseClass A common stock 27,000 $7.68 $207,360.00
Disclosure

SEC source: 0001871509-25-000126 · wk-form4_1754685808.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,495

F1 · price: Represents the weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $7.61 to $7.73, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the aforementioned range.

Read SEC document
May 31, 2025 Filed Jun 3, 2025 20:54 UTC Portillo's Inc. PTLO · Entity 5886 Tax withholdingClass A common stock 42 $10.80 $453.60
Disclosure

SEC source: 0001871509-25-000102 · wk-form4_1748984076.xml · nonDerivative · entry 2

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,495

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

Read SEC document
May 31, 2025 Filed Jun 3, 2025 20:54 UTC Portillo's Inc. PTLO · Entity 5886 GrantClass A common stock 1,461 $10.80 $15,778.80
Disclosure

SEC source: 0001871509-25-000102 · wk-form4_1748984076.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,537

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of March 1, 2025 to May 31, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on May 30, 2025.

Read SEC document
May 02, 2025 Filed May 5, 2025 21:15 UTC Portillo's Inc. PTLO · Entity 5886 Tax withholdingClass A common stock 1,840 $10.45 $19,228.00
Disclosure

SEC source: 0001871509-25-000083 · wk-form4_1746479699.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,076

F1 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of a previously disclosed award.

Read SEC document
April 15, 2025 Filed Apr 17, 2025 20:31 UTC Portillo's Inc. PTLO · Entity 5886 GrantClass A common stock 18,626 $0.00 $0.00
Disclosure

SEC source: 0001871509-25-000050 · wk-form4_1744921852.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,916

F1 · shares: Represents restricted stock units subject to time-based vesting granted on April 15, 2025, 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.

Read SEC document
February 28, 2025 Filed Mar 4, 2025 22:09 UTC Portillo's Inc. PTLO · Entity 5886 Tax withholdingClass A common stock 14 $12.57 $175.98
Disclosure

SEC source: 0001871509-25-000024 · wk-form4_1741126151.xml · nonDerivative · entry 2

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,290

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

Read SEC document
February 28, 2025 Filed Mar 4, 2025 22:09 UTC Portillo's Inc. PTLO · Entity 5886 GrantClass A common stock 418 $12.57 $5,254.26
Disclosure

SEC source: 0001871509-25-000024 · wk-form4_1741126151.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,304

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of December 1, 2024 to February 28, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on February 28, 2025.

Read SEC document
September 05, 2024 Filed Sep 6, 2024 21:47 UTC Portillo's Inc. PTLO · Entity 5886 Tax withholdingClass A common stock 437 $11.95 $5,222.15
Disclosure

SEC source: 0001871509-24-000116 · wk-form4_1725659264.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,886

F1 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of a previously disclosed award.

Read SEC document
May 02, 2024 Filed May 6, 2024 20:51 UTC Portillo's Inc. PTLO · Entity 5886 GrantClass A common stock 18,844 $0.00 $0.00
Disclosure

SEC source: 0001871509-24-000061 · wk-form4_1715028649.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,323

F1 · shares: Represents restricted stock units subject to time-based vesting granted on May 2, 2024, 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.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.