# Kirby McInerney Investigates Portillo's Over Potential Securities Law Violations

> Kirby McInerney is investigating Portillo's over possible securities law violations after revenue target cuts and a $5.9 million operating income drop.

- Published: 2026-10-15T21:58:28+00:00
- Section: Legal & Disputes
- Author: News Desk
- URL: https://newsforagent.com/news/2026-10-15/kirby-mcinerney-portillos-securities-investigation
- Source: [GlobeNewswire](https://www.globenewswire.com/news-release/2026/10/15/3382187/937/en/portillo-s-inc-investigation-ptlo-securities-investors-encouraged-to-contact-kirby-mcinerney-llp-about-their-rights.html)

## Key takeaways

- Kirby McInerney LLP is investigating whether Portillo's and its senior management violated federal securities laws.
- Portillo's cut its fiscal 2025 revenue growth target from 10% to 12% down to 5% to 7% on August 5, 2025.
- Portillo's first quarter 2026 operating income fell by $5.9 million, from $10.4 million to $4.5 million.
- No lawsuit has been filed against Portillo's, and the investigation is ongoing.

[Kirby McInerney](https://akta.pro/company-profiles/00058uy/kirby-mcinerney) LLP is investigating potential securities law violations by Portillo's Inc., the law firm said on October 15, 2026. The probe concerns whether Portillo's and its senior management may have violated federal securities laws or engaged in other unlawful business practices, according to [GlobeNewswire](https://www.globenewswire.com/news-release/2026/10/15/3382187/937/en/portillo-s-inc-investigation-ptlo-securities-investors-encouraged-to-contact-kirby-mcinerney-llp-about-their-rights.html). No lawsuit has been filed.

## Kirby McInerney's Portillo's Investigation

Portillo's is a restaurant chain whose securities trade on the Nasdaq under the ticker PTLO. Kirby McInerney, a New York-based plaintiffs' firm, is asking investors who purchased or otherwise acquired Portillo's securities to contact Lauren Molinaro of the firm by email at investigations@[kmllp.com](https://www.kmllp.com) or through a contact form to learn about their rights.

The investigation points to three disclosures. On August 5, 2025, Portillo's reported second quarter 2025 results, reducing its fiscal 2025 revenue growth target from a range of 10% to 12% to a range of 5% to 7% and lowering adjusted EBITDA growth expectations from 5% to 8% to "flat to low single-digits." Same-restaurant sales rose 0.7% in the quarter while transactions declined 1.4%, and the shares fell $2.21, or about 23.3%, from $9.49 on August 4, 2025 to close at $7.28 on August 5, 2025.

On September 10, 2025, Portillo's announced a strategic reset of its development and growth plans and said it expected third quarter 2025 same-restaurant sales to decline by 2.0% to 2.5%. It cut its fiscal 2025 unit growth target from 12 to 8 new restaurants, lowered same-restaurant sales guidance from an increase of 1% to 3% to a decrease of 1% to 1.5%, and reduced its EBITDA margin from a range of 22.5% to 23% to 21.0% to 21.5%. The company said the cuts "reflect an anticipated decline of current trends for the remainder of 2025." The shares fell $0.37, or about 5.7%, from $6.52 on September 9, 2025 to close at $6.15 on September 10, 2025.

On May 6, 2026, Portillo's reported first quarter 2026 results: operating income decreased by $5.9 million, from $10.4 million to $4.5 million; same-restaurant sales decreased by 0.1%; there was a net loss of $0.5 million; restaurant-level Adjusted EBITDA decreased by $1.8 million; and Adjusted EBITDA decreased by $2.8 million. The shares fell $1.23, or about 21.5%, from $5.72 on May 4, 2026 to close at $4.49 on May 6, 2026.

## Kirby McInerney's Litigation Record

According to akta.pro [company records](https://akta.pro/company-data), Kirby McInerney has recovered billions of dollars for clients across securities, antitrust and commodities class actions. Those recoveries include a $590 million settlement in Citigroup CDO-related securities fraud litigation and a $478 million settlement in Adelphia Communications securities and derivative litigation. The firm was founded in 1934 and is headquartered in New York.

## Kirby McInerney's Recent Investigations

Kirby McInerney has opened similar investigations in recent weeks. On October 13, 2026, Aktien reported the firm is continuing an investigation into uniQure N.V. over possible securities law violations, following 48-month data for AMT-130 showing 44% disease slowing versus 75% at 36 months, after which the stock fell 37.3%. That same day, Aktien reported a continuing investigation into Medline Inc. following FDA warnings and earnings losses, with the stock falling 7.2% on June 2 and 12.8% on August 5. On October 12, 2026, GlobeNewswire reported an investigation into Fervo Energy citing its second quarter 2026 results and a Morpheus report alleging undisclosed operational issues.

## What Comes Next for Portillo's Investors

Kirby McInerney said the investigation is ongoing to determine whether claims may be brought under federal securities laws. Investors who acquired Portillo's securities can contact Lauren Molinaro at the firm to discuss their rights at no cost.

## Companies in this story

- [Kirby McInerney company profile](https://akta.pro/company-profiles/00058uy/kirby-mcinerney) · website: https://www.kmllp.com
- [Portillos company profile](https://akta.pro/company-profiles/000033v/portillos) · website: https://www.portillos.com

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