Company: FWRG
Filing Date: 2025-08-07
Form Type: 424B3
Source: 0001628280-25-038995
Chunk: 3

Company: First Watch Restaurant Group, Inc.
Filing Date: 2025-08-07
Form: 424B3
Chunk 3
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 Advent team includes more than 320 investment professionals across Europe, North America, Latin America and Asia.

Following the closing of this offering, funds managed by Advent are expected to own approximately 15.88% of our outstanding common stock. As a result, Advent will continue to exercise significant voting influence over fundamental and significant corporate matters and transactions. See “Risk Factors” and “Selling Stockholders.”

#### Corporate Information
First Watch Restaurant Group, Inc. was incorporated in Delaware on August 10, 2017, under the name AI Fresh Super Holdco, Inc. We changed our name on December 20, 2019 to First Watch Restaurant Group, Inc. Our principal executive offices are located at 8725 Pendery Place, Suite 201, Bradenton, FL 34201, and our telephone number is (941) 907-9800. Our corporate website address is www.firstwatch.com . Our corporate website and the information contained on, or that can be accessed through, the website is not deemed to be incorporated by reference in, and is not considered part of, this prospectus supplement or the accompanying prospectus. You should not rely on any such information in making your decision whether to purchase our common stock.

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THE OFFERING

| Issuer:                                                          |     | First Watch Restaurant Group, Inc.                                                                                                                                                                                                             |
| Common stock offered by us:                                      |     | None.                                                                                                                                                                                                                                          |
| Common stock offered by the selling stockholders:                |     | 5,000,000 shares of common stock.                                                                                                                                                                                                              |
| Common stock to be outstanding prior to and after this offering: |     | 61,023,971 shares of common stock.                                                                                                                                                                                                             |
| Use of proceeds:                                                 |     | The selling stockholders will receive all of the proceeds from the sale of our common stock in this offering. We will not receive any proceeds from the sale of shares of common stock by the selling stockholders. See “Use of Proceeds.”     |
| Dividend policy:                                                 |     | We do not anticipate paying any dividends on our common stock for the foreseeable future; however, we may change this policy in the future. See “Dividend Policy.”                                                                             |
| Risk factors:                                                    |     | Investing in our common stock involves a high degree of risk. See the “Risk Factors” section of this prospectus supplement beginning on pageS-9for a discussion of factors you should carefully consider before investing in our common