Company: FWRG
Filing Date: 2025-08-07
Form Type: 424B3
Source: 0001628280-25-038995
Chunk: 53

Company: First Watch Restaurant Group, Inc.
Filing Date: 2025-08-07
Form: 424B3
Chunk 53
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 LEGAL MATTERS
Weil, Gotshal & Manges LLP, New York, New York, will pass upon the validity of the common stock offered by this prospectus. Additional legal matters may be passed upon for us or any underwriters, dealers or agents, by counsel that we will name in the applicable prospectus supplement.

### EXPERTS
The financial statements incorporated in this Prospectus by reference to the Annual Report on Form 10-K for the fiscal year ended December 26, 2021 have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

In connection with First Watch Restaurant Group, Inc.’s initial public offering, PricewaterhouseCoopers LLP (“PwC”) completed an independence assessment to evaluate the services and relationships with the Company and its affiliates that may bear on PwC’s independence under the SEC and PCAOB independence rules for the audit period commencing December 31, 2018. PwC informed the Company that, commencing in February 2020 and continuing through June 2020, a PwC member firm was engaged to provide permissible tax compliance services to a portfolio company controlled by Advent, which currently is the majority equity holder of the Company, pursuant to a contingent fee of approximately $40,000. The existence of the contingent fee is not in accordance with the SEC and PCAOB auditor independence rules.

PwC provided an overview of the facts and circumstances surrounding the contingent fee arrangement to our audit committee and management, including the entity involved, the fees earned and other relevant factors. Considering the facts presented, our audit committee and PwC have concluded that the contingent fee would not impair PwC’s application of objective and impartial judgment on any matters encompassed within the audit engagement performed by PwC for our financial statements as of and for the fiscal year ended December 27, 2020, and that no reasonable investor would conclude otherwise.

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#### 5,000,000 Shares

#### Common Stock

#### Prospectus Supplement
| Barclays |     | Goldman Sachs & Co. LLC |

#### August 6, 2025