Company: WW
Filing Date: 2025-11-06
Form Type: S-8 POS
Source: 0001193125-25-269639
Chunk: 1

Company: WW INTERNATIONAL, INC.
Filing Date: 2025-11-06
Form: S-8 POS
Chunk 1
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 Awards (Oprah Winfrey) Second Amended and Restated Weight Watchers International, Inc. 2014 Stock Incentive Plan Weight Watchers International, Inc. Term Sheet and Terms and Conditions for Employee Stock Option Awards (Chief Executive Officer Initial Equity Award – Inducement Grant) WW International, Inc. Term Sheet and Terms and Conditions for Consultant Stock Option Award (Oprah Winfrey) Third Amended and Restated WW International, Inc. 2014 Stock Incentive Plan WW International, Inc. Term Sheet and Terms and Conditions for Employee Stock Option Awards (Chief Executive Officer Inducement Grant Award with $30.00 exercise price) WW International, Inc. Term Sheet and Terms and Conditions for Employee Stock Option Awards (Chief Executive Officer Inducement Grant Award with $50.00 exercise price)(Full title of the plan) Jacqueline Cooke, Esq. WW International, Inc. 675 Avenue of the Americas, 6th Floor New York, New York 10010 (212) 589-2700 (Name, address and telephone number, including area code, of agent for service) Copy to: Kenneth Wallach, Esq. Charles Mathes, Esq. Gillian Emmett Moldowan, Esq. Simpson Thacher & Bartlett LLP 425 Lexington Avenue New York, New York 10017 Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-acceleratedfiler, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2of the Exchange Act.

| Large accelerated filer |     | ☐ |     | Accelerated filer         |     | ☒ |
| Non-accelerated filer   |     | ☐ |     | Smaller reporting company |     | ☒ |
|                         |     |   |     | Emerging growth company   |     | ☐ |

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

Explanatory Note WW International, Inc. (the “Registrant”) is filing these post-effective amendments (these “Post-Effective Amendments”) to the following Registration