Company: PIII
Filing Date: 2025-04-01
Form Type: S-8
Source: 0001628280-25-015737
Chunk: 0

Company: P3 Health Partners Inc.
Filing Date: 2025-04-01
Form: S-8
Chunk 0
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As filed with the Securities and Exchange Commission on March 31, 2025 Registration No. 333-

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

P3 HEALTH PARTNERS INC. (Exact name of Registrant as specified in its charter)

| Delaware                        |     | 85-2992794         |
| (State or other jurisdiction of 
 Incorporation or organization)  |     | -I.R.S. Employer   
 Identification No. |

2370 Corporate Circle, Suite 300 Henderson, NV 89074 (702) 910-3950 (Address of principal executive offices) (Zip code) P3 Health Partners Inc. 2021 Incentive Award Plan (Full title of the plan)

Leif Pedersen Chief Financial Officer 2370 Corporate Circle, Suite 300 Henderson, NV 89074 (702) 910-3950 (Name and address of agent for service) (Telephone number, including area code, of agent for service) With copies to: Charles K. Ruck Wesley C. Holmes Elisabeth M. Martin Latham & Watkins LLP 1271 Avenue of the Americas New York, New York 10020 (212) 906-1200

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, 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-2 of 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 comply with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of Securities Act. ☐

EXPLANATORY NOTE This Registration Statement on Form S-8 is being filed for the purpose of registering an additional 9,155,835 shares of Class