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  <TITLE>S-8</TITLE>
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   <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>As filed with the Securities and Exchange Commission on May&nbsp;6, 2025 </B></P>
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Registration <FONT STYLE="white-space:nowrap">No.&nbsp;333-&#8195;&#8195;&#8195;</FONT></B></P>
  <P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;
  </DIV><DIV STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</DIV> <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>UNITED STATES </B></P>
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>SECURITIES AND EXCHANGE COMMISSION </B></P>
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Washington, D.C. 20549 </B></P>
  <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center><DIV STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</DIV></center>
  <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>FORM <FONT STYLE="white-space:nowrap">S-8</FONT> </B></P>
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>REGISTRATION STATEMENT </B></P>
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B><I>UNDER </I></B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B><I>THE
  SECURITIES ACT OF 1933 </I></B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center><DIV STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</DIV></center>
  <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:24pt; font-family:Times New Roman" ALIGN="center"><B>PLANET FITNESS, INC. </B></P>
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Exact name of registrant as specified in its charter) </B></P>
  <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center><DIV STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</DIV></center>
  <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
  <TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:8pt" ALIGN="center">
  
  
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  <TD VALIGN="top" ALIGN="center"><B>Delaware</B></TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="top" ALIGN="center"><B><FONT STYLE="white-space:nowrap">38-3942097</FONT></B></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
  <TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(State or other jurisdiction of</B></P>
  <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>incorporation or organization)</B></P></TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(I.R.S. Employer</B></P>
  <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Identification No.)</B></P></TD></TR>
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  <TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>4 Liberty Lane West</B></P>
  <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Hampton, NH</B></P></TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="bottom" ALIGN="center"><B>03842</B></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
  <TD VALIGN="top" ALIGN="center"><B>(Address of principal executive offices)</B></TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="top" ALIGN="center"><B>(Zip Code)</B></TD></TR>
  </TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Planet Fitness, Inc. 2025 Omnibus Incentive Plan </B></P>
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Full title of the plan) </B></P>
  <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Colleen Keating </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Chief
  Executive Officer </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Planet Fitness, Inc. </B></P>
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>4 Liberty Lane West </B></P>
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Hampton, NH 03842 </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Name
  and address of agent for service) </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(603) <FONT STYLE="white-space:nowrap">750-0001</FONT> </B></P>
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Telephone number, including area code, of agent for service) </B></P>
  <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center><DIV STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</DIV></center>
  <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><I>with copies to: </I></B></P>
  <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Thomas Fraser </B></P>
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Ropes&nbsp;&amp; Gray LLP </B></P>
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Prudential Tower </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>800
  Boylston Street </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Boston, Massachusetts </B></P>
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(617) <FONT STYLE="white-space:nowrap">951-7000</FONT> </B></P>
  <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center><DIV STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</DIV></center>
  <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a <FONT STYLE="white-space:nowrap">non-accelerated</FONT>
  filer, a smaller reporting company or an emerging growth company. See the definitions of &#147;large accelerated filer,&#148; &#147;accelerated filer,&#148; &#147;smaller reporting company,&#148; and &#147;emerging growth company&#148; in Rule <FONT
  STYLE="white-space:nowrap">12b-2</FONT> of the Exchange Act. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
  <TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">
  
  
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  <TD WIDTH="57%"></TD>
  
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  <TD WIDTH="21%"></TD>
  
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  <TD WIDTH="2%"></TD></TR>
  
  
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  <TD VALIGN="bottom">Large&nbsp;accelerated&nbsp;filer</TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="bottom">&#9746;</TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="bottom">Accelerated&nbsp;filer</TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="bottom">&#9744;</TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="8"></TD>
  <TD HEIGHT="8" COLSPAN="2"></TD>
  <TD HEIGHT="8" COLSPAN="2"></TD>
  <TD HEIGHT="8" COLSPAN="2"></TD></TR>
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  <TD VALIGN="bottom">Non-accelerated filer</TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="bottom">&#9744;</TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="bottom">Smaller&nbsp;reporting&nbsp;company</TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="bottom">&#9744;</TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="8"></TD>
  <TD HEIGHT="8" COLSPAN="2"></TD>
  <TD HEIGHT="8" COLSPAN="2"></TD>
  <TD HEIGHT="8" COLSPAN="2"></TD></TR>
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  <TD VALIGN="bottom"></TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="bottom"></TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="bottom">Emerging&nbsp;growth&nbsp;company</TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="bottom">&#9744;</TD></TR>
  </TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">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&nbsp;7(a)(2)(B) of the Securities Act.&#8194;&#9744; </P>
  <P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;
  </DIV><DIV STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</DIV>
  </DIV></Center>
  
  
  <p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
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   <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>EXPLANATORY NOTE </B></P>
  <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Planet Fitness, Inc. (the &#147;Registrant&#148;) has prepared this Registration Statement in accordance with the requirements of Form <FONT
  STYLE="white-space:nowrap">S-8</FONT> under the Securities Act of 1933, as amended, (the &#147;Securities Act&#148;), to register the issuance of 5,681,700 shares of its Class&nbsp;A common stock, par value $0.0001 per share (the &#147;Class&nbsp;A
  common stock&#148;) consisting of (i) 5,300,000 shares of Class&nbsp;A common stock that are reserved for issuance in respect of the Planet Fitness, Inc. 2025 Omnibus Incentive Plan and (ii)&nbsp;up to 381,700 shares of Class&nbsp;A common stock
  underlying awards granted and outstanding under the Planet Fitness, Inc. 2015 Omnibus Incentive Plan. </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>PART I </B></P>
  <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS </B></P>
  <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Information required by Part I to be contained in the Section&nbsp;10(a) prospectus is omitted from this Registration Statement in accordance with Rule 428
  under the Securities Act and the Note to Part I of Form <FONT STYLE="white-space:nowrap">S-8.</FONT> Such information is not being filed with the Securities and Exchange Commission (the &#147;Commission&#148;) either as part of this Registration
  Statement or as prospectuses or prospectus supplements pursuant to Rule 424 under the Securities Act. Such information has been or will be delivered to participants in the plan covered by this Registration Statement as specified by Rule 428(b)(1)
  under the Securities Act. </P>
  </DIV></Center>
  
  
  <p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
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   <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>PART II </B></P>
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>INFORMATION REQUIRED IN THE REGISTRATION STATEMENT </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
  <TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
  <TR style = "page-break-inside:avoid">
  <TD WIDTH="9%" VALIGN="top" ALIGN="left"><B>Item&#8201;3.</B></TD>
  <TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><B>Incorporation of Documents by Reference. </B></P></TD></TR></TABLE>
  <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The following documents filed by the Registrant with the Commission are incorporated herein by reference: </P>
  <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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  <TD WIDTH="4%" VALIGN="top" ALIGN="left">(1)</TD>
  <TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">The Registrant&#146;s Annual Report on <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/1637207/000163720725000016/plnt-20241231.htm">Form
   <FONT STYLE="white-space:nowrap">10-K</FONT></A> for the fiscal year ended December&nbsp;31, 2024 filed with the Commission on February&nbsp;25, 2025 (File <FONT STYLE="white-space:nowrap">No.&nbsp;001-37534),</FONT> which contains audited
  financial statements for the Registrant&#146;s latest fiscal year for which such statements have been filed; </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
  <TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
  <TR style = "page-break-inside:avoid">
  <TD WIDTH="4%" VALIGN="top" ALIGN="left">(2)</TD>
  <TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">The information specifically incorporated by reference into the Registrant&#146;s Annual Report on Form <FONT
  STYLE="white-space:nowrap">10-K</FONT> for the fiscal year ended December&nbsp;
  31, 2024 from its <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/1637207/000163720725000048/plnt-20250328.htm">definitive proxy statement</A> on Schedule 14A for the 2025 Annual Meeting of Stockholders, filed
  with the Commission on March&nbsp;28, 2025 (File <FONT STYLE="white-space:nowrap">No.&nbsp;001-37534);</FONT> </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
  <TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
  <TR style = "page-break-inside:avoid">
  <TD WIDTH="4%" VALIGN="top" ALIGN="left">(3)</TD>
  <TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">The Registrant&#146;s Current Reports on Form <FONT STYLE="white-space:nowrap">8-K</FONT> filed with the
  Commission on <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/1637207/000163720725000008/plnt-20250210.htm">February<U></U>&nbsp;
  12, 2025</A> and <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/1637207/000163720725000027/plnt-20250312.htm">March<U></U>&nbsp;18, 2025</A> (each, File
  <FONT STYLE="white-space:nowrap">No.&nbsp;001-37534);</FONT> and </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
  <TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
  <TR style = "page-break-inside:avoid">
  <TD WIDTH="4%" VALIGN="top" ALIGN="left">(4)</TD>
  <TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">The description of the Registrant&#146;s Class&nbsp;
  A common stock, $0.0001 par value per share, contained in <A HREF="http://www.sec.gov/Archives/edgar/data/1637207/000163720720000008/ex45descritpionofstock.htm">Exhibit 4.5</A> to Registrant&#146;s Annual Report on Form
  <FONT STYLE="white-space:nowrap">10-K</FONT> for the fiscal year ended December&nbsp;31, 2019, and any other amendments or reports filed for the purpose of updating such description (File <FONT STYLE="white-space:nowrap">No.&nbsp;001-37534).</FONT>
  </P></TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">All reports and other documents filed by the Registrant after the date hereof pursuant to Sections 13(a), 13(c), 14 and 15(d) of the
  Securities Exchange Act of 1934, as amended (the &#147;Exchange Act&#148;) prior to the filing of a post-effective amendment which indicates that all securities offered hereby have been sold or which deregisters all securities then remaining unsold,
  shall be deemed to be incorporated by reference herein and to be part hereof from the date of filing of such reports and documents. Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed
  to be modified or superseded for the purposes of this Registration Statement to the extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or
  supersedes such statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement. </P>
  <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
  <TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
  <TR style = "page-break-inside:avoid">
  <TD WIDTH="9%" VALIGN="top" ALIGN="left"><B>Item&#8201;4.</B></TD>
  <TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><B>Description of Securities. </B></P></TD></TR></TABLE>
  <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Not applicable. </P> <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
  <TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
  <TR style = "page-break-inside:avoid">
  <TD WIDTH="9%" VALIGN="top" ALIGN="left"><B>Item&#8201;5.</B></TD>
  <TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><B>Interests of Named Experts and Counsel. </B></P></TD></TR></TABLE>
  <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Not applicable. </P> <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
  <TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
  <TR style = "page-break-inside:avoid">
  <TD WIDTH="9%" VALIGN="top" ALIGN="left"><B>Item&#8201;6.</B></TD>
  <TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><B>Indemnification of Directors and Officers. </B></P></TD></TR></TABLE>
  <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Section&nbsp;102(b)(7) of the General Corporation Law of the State of Delaware (the &#147;DGCL&#148;) enables a corporation to eliminate or limit the personal
  liability of a director or officer for violations of the director&#146;s or officer&#146;s fiduciary duty, except (i)&nbsp;for any breach of the director&#146;s or officer&#146;s duty of loyalty to the corporation or its stockholders, (ii)&nbsp;for
  acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (iii)&nbsp;for liability of directors or officers for unlawful payment of dividends or unlawful stock purchase or redemptions pursuant to
  Section&nbsp;174 of the DGCL, (iv)&nbsp;for any transaction from which a director or officer derived an improper personal benefit or (v)&nbsp;for liability of an officer in any action by or in the right of the corporation. The Registrant&#146;s
  certificate of incorporation includes a provision that eliminates the personal liability of directors for monetary damages for actions taken as a director to the fullest extent authorized by the DGCL. </P>
  <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Section&nbsp;145(a) of the DGCL provides in relevant part that a corporation may indemnify any person who was or is a party or is threatened to be made a
  party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the corporation), by reason of the fact that such person is or was a
  director or officer of the corporation, or is or was serving at the request of the corporation as a director or officer of another entity, against expenses (including attorneys&#146; fees), judgments, fines and amounts paid in settlement actually
  and reasonably incurred by such person in connection with such action, suit or proceeding if such person acted in good faith and in a manner such person reasonably believed to be in or not opposed to the best interests of the corporation, and, with
  respect to any criminal action or proceeding, had no reasonable cause to believe such person&#146;s conduct was unlawful. The termination of any action, suit or proceeding by judgment, order, settlement, conviction or upon a plea of nolo contendere
  or its equivalent shall not, of itself, create a presumption that such person did not act in good faith and in a manner which such person reasonably believed to be in or not opposed to the best interests of the corporation, and, with respect to any
  criminal action or proceeding, had reasonable cause to believe that such person&#146;s conduct was unlawful. </P>
  </DIV></Center>
  
  
  <p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
  <HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
  
  <Center><DIV STYLE="width:8.5in" align="left">
   <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Section&nbsp;145(b) of the DGCL provides in relevant part that a corporation may indemnify any person who
  was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor by reason of the fact that the person is or was a director or
  office of the corporation, or is or was serving at the request of the corporation as a director or officer of another entity, against expenses (including attorneys&#146; fees) actually and reasonably incurred by such person in connection with the
  defense or settlement of such action or suit if the person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation and except that no indemnification shall be made in
  respect of any claim, issue or matter as to which such person shall have been adjudged to be liable to the corporation unless and only to the extent that the Delaware Court of Chancery or the court in which such action or suit was brought shall
  determine upon application that, despite the adjudication of liability but in view of all the circumstances of the case, such person is fairly and reasonably entitled to indemnity for such expenses which the Delaware Court of Chancery or such other
  court shall deem proper. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The Registrant&#146;s bylaws provide that it will indemnify its directors and officers to the fullest extent permitted by law.
  The Registrant&#146;s bylaws also provide that the indemnification and advancement of expenses provided by, or granted pursuant to the bylaws, are not exclusive of any other rights to which those seeking indemnification or advancement of expenses
  may be entitled under any bylaw, agreement, vote of directors or stockholders or otherwise. Section&nbsp;145(f) of the DGCL further provides that a right to indemnification or to advancement of expenses arising under a provision of the certificate
  of incorporation shall not be eliminated or impaired by an amendment to such provision after the occurrence of the act or omission which is the subject of the civil, criminal, administrative or investigative action, suit or proceeding for which
  indemnification or advancement of expenses is sought. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The Registrant has also entered into indemnification agreements with each of its directors. Such
  agreements generally provide for indemnification by reason of being the Registrant&#146;s director. These agreements are in addition to the indemnification provided by the Registrant&#146;s certificate of incorporation and bylaws. </P>
  <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The Registrant maintains officers&#146; and directors&#146; liability insurance that insures against liabilities that the Registrant&#146;s officers and
  directors may incur in such capacities. Section&nbsp;145(g) of the DGCL provides that a corporation shall have power to purchase and maintain insurance on behalf of any person who is or was a director or officer of the corporation, or is or was
  serving at the request of the corporation as a director or officer of another entity, against any liability asserted against such person and incurred by such person in any such capacity, or arising out of such person&#146;s status as such, whether
  or not the corporation would have the power to indemnify such person against such liability under that section. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">For the undertaking with respect to
  indemnification, see Item 9 below. </P> <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
  <TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
  <TR style = "page-break-inside:avoid">
  <TD WIDTH="9%" VALIGN="top" ALIGN="left"><B>Item&#8201;7.</B></TD>
  <TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><B>Exemption from Registration Claimed. </B></P></TD></TR></TABLE>
  <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Not applicable. </P> <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
  <TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
  <TR style = "page-break-inside:avoid">
  <TD WIDTH="9%" VALIGN="top" ALIGN="left"><B>Item&#8201;8.</B></TD>
  <TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><B>Exhibits. </B></P></TD></TR></TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
  <TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">
  
  
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  <TD VALIGN="bottom" WIDTH="4%"></TD>
  <TD WIDTH="92%"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
  <TD VALIGN="bottom" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Exhibit</B></P>
  <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Number</B></P></TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Description</B></P></TD></TR>
  
  
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="8"></TD>
  <TD HEIGHT="8" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top" NOWRAP>&#8199;&#8199;4.1</TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1637207/000119312515253757/d888681dex31.htm">Restated Certificate of Incorporation of Planet Fitness, Inc. (previously filed as Exhibit 3.1 to the Registration Statement on Form <FONT
  STYLE="white-space:nowrap">S-1</FONT> (File <FONT STYLE="white-space:nowrap">No.&nbsp;333-205141)</FONT> filed on July&nbsp;15, 2015 and incorporated herein by reference) </A></TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="8"></TD>
  <TD HEIGHT="8" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top" NOWRAP>&#8199;&#8199;4.2</TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1637207/000163720725000027/amendedandrestatedbylawsof.htm">Amended and Restated Bylaws of Planet Fitness, Inc. (previously filed as Exhibit 3.2 to the Form <FONT
  STYLE="white-space:nowrap">8-K</FONT> (File <FONT STYLE="white-space:nowrap">No.&nbsp;001-37534)</FONT> filed on March&nbsp;18, 2025 and incorporated herein by reference) </A></TD></TR></TABLE>
  </DIV></Center>
  
  
  <p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
  <HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
  
  <Center><DIV STYLE="width:8.5in" align="left">
  
  <TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">
  
  
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  <TD VALIGN="bottom" WIDTH="4%"></TD>
  <TD WIDTH="92%"></TD></TR>
  
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top" NOWRAP>&#8199;&#8199;4.3</TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1637207/000095012315007702/d888681dex41.htm">Form of Class&nbsp;A Common Stock Certificate (previously filed as Exhibit 4.1 to the Registration Statement on Form <FONT
  STYLE="white-space:nowrap">S-1</FONT> (File <FONT STYLE="white-space:nowrap">No.&nbsp;333-205141)</FONT> filed on July&nbsp;27, 2015 and incorporated herein by reference) </A></TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="8"></TD>
  <TD HEIGHT="8" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top" NOWRAP>&#8199;&#8199;4.4</TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/0001637207/000163720725000048/plnt-20250328.htm">Planet Fitness, Inc. 2025 Omnibus Incentive Plan (previously filed as Appendix A to the definitive proxy
  statement on Schedule 14A (File <FONT STYLE="white-space:nowrap">No.&nbsp;001-37534)</FONT> for the 2025 Annual Meeting of Stockholders, filed with the Commission on March&nbsp;28, 2025 and incorporated herein by reference) </A></TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="8"></TD>
  <TD HEIGHT="8" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top" NOWRAP>&#8199;&#8199;5.1*</TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top"><A HREF="d806346dex51.htm">Opinion of Ropes&nbsp;&amp; Gray LLP </A></TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="8"></TD>
  <TD HEIGHT="8" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top" NOWRAP>&#8199;23.1*</TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top"><A HREF="d806346dex231.htm">Consent of KPMG LLP </A></TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="8"></TD>
  <TD HEIGHT="8" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top" NOWRAP>&#8199;23.2*</TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top"><A HREF="d806346dex51.htm">Consent of Ropes&nbsp;&amp; Gray LLP (included in Exhibit 5.1) </A></TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="8"></TD>
  <TD HEIGHT="8" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top" NOWRAP>&#8199;24.1*</TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top"><A HREF="d806346ds8.htm#sig">Power of Attorney (included on the signature page of the Registration Statement) </A></TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="8"></TD>
  <TD HEIGHT="8" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top" NOWRAP>107*</TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top"><A HREF="d806346dexfilingfees.htm">Filing Fee Table </A></TD></TR>
  </TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
  <TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
  <TR style = "page-break-inside:avoid">
  <TD WIDTH="2%" VALIGN="top" ALIGN="left">*</TD>
  <TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">Filed herewith </P></TD></TR></TABLE> <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
  <TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
  <TR style = "page-break-inside:avoid">
  <TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&#8201;9.</B></TD>
  <TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><B>Undertakings. </B></P></TD></TR></TABLE>
  <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(a) The undersigned Registrant hereby undertakes: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(1) To file,
  during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(i) To include any prospectus
  required by Section&nbsp;10(a)(3) of the Securities Act; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(ii) To reflect in the prospectus any facts or events arising after the effective date of the
  Registration Statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the Registration Statement. Notwithstanding the foregoing, any
  increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in
  the form of a prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20&nbsp;percent change in the maximum aggregate offering price set forth in the &#147;Calculation
  of Registration Fee&#148; table in the effective registration statement; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(iii) To include any material information with respect to the plan of
  distribution not previously disclosed in the Registration Statement or any material change to such information in the Registration Statement; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">provided,
  however, that paragraphs (a)(1)(i) and (a)(1)(ii) above shall not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed with or furnished to the Commission by the
  Registrant pursuant to Section&nbsp;13 or 15(d) of the Exchange Act that are incorporated by reference in the Registration Statement. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(2) That, for the
  purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall
  be deemed to be the initial bona fide offering thereof. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(3) To remove from registration by means of a post-effective amendment any of the securities
  being registered which remain unsold at the termination of the offering. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(b) The undersigned Registrant hereby undertakes that, for purposes of
  determining any liability under the Securities Act, each filing of the Registrant&#146;s annual report pursuant to Section&nbsp;13(a) or 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan&#146;s annual report
  pursuant to Section&nbsp;15(d) of the Exchange Act) that is incorporated by reference in the Registration Statement shall be deemed to be a new Registration Statement relating to the securities offered therein, and the offering of such securities at
  that time shall be deemed to be the initial bona fide offering thereof. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(c) Insofar as indemnification for liabilities arising under the Securities Act
  may be permitted to directors, officers and controlling persons of the Registrant pursuant to the foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the Commission such indemnification is against public policy
  as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling
  person of the Registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or </P>
  </DIV></Center>
  
  
  <p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
  <HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
  
  <Center><DIV STYLE="width:8.5in" align="left">
   <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
  controlling person in connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a
  court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue. </P>
  </DIV></Center>
  
  
  <p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
  <HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
  
  <Center><DIV STYLE="width:8.5in" align="left">
   <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="sig"></A>SIGNATURES </B></P>
  <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the
  requirements for filing on Form <FONT STYLE="white-space:nowrap">S-8</FONT> and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the city of Hampton, New Hampshire on
  May&nbsp;6, 2025. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
  <TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">
  
  
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  <TD WIDTH="92%"></TD></TR>
  
  
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  <TD VALIGN="top" COLSPAN="3"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>PLANET FITNESS, INC.</B></P></TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="16"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top">By:</TD>
  <TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
  <TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">/s/ Colleen Keating</TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="bottom"></TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Colleen Keating</P></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="bottom"></TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Chief Executive Officer</P></TD></TR>
  </TABLE></DIV> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>POWER OF ATTORNEY </B></P>
  <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Each person whose signature appears below constitutes and appoints Colleen Keating, Jay Stasz and Justin Vartanian, and each of them singly, their true and
  lawful <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">attorneys-in-fact</FONT></FONT> and agents, with full power of substitution and resubstitution in each of them singly, for them and in their name, place and stead, and in any
  and all capacities, to sign any and all amendments (including post-effective amendments) to this Registration Statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> of Planet Fitness, Inc., and to file the same, with all exhibits thereto and
  other documents in connection therewith, with the Securities and Exchange Commission, granting to the <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">attorneys-in-fact</FONT></FONT> and agents, and each of them, full power and
  authority to do and perform each and every act and thing requisite or necessary to be done in or about the premises, as full to all intents and purposes as they might or could do in person, hereby ratifying and confirming all that the <FONT
  STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">attorneys-in-fact</FONT></FONT> and agents or any of each of them or their substitutes may lawfully do or cause to be done by virtue hereof. </P>
  <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities and on the
  dates indicated. </P>
  </DIV></Center>
  
  
  <p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
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  <TD VALIGN="bottom" WIDTH="1%"></TD>
  <TD WIDTH="16%"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
  <TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Name</B></P></TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Title</B></P></TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Date</B></P></TD></TR>
  
  
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="16"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/s/ Colleen Keating</P>
  <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Colleen Keating</P></TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top">Chief Executive Officer and Director<BR>(Principal Executive Officer)</TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="top" NOWRAP ALIGN="center">May&nbsp;6, 2025</TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="16"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/s/ Jay Stasz</P>
  <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Jay Stasz</P></TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top">Chief Financial Officer<BR>(Principal Financial and Accounting Officer)</TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="top" NOWRAP ALIGN="center">May&nbsp;6, 2025</TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="16"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/s/ Bernard Acoca</P>
  <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Bernard Acoca</P></TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top">Director</TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="top" NOWRAP ALIGN="center">May&nbsp;6, 2025</TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="16"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/s/ Enshalla Anderson</P>
  <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Enshalla Anderson</P></TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top">Director</TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="top" NOWRAP ALIGN="center">May&nbsp;6, 2025</TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="16"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/s/ Craig Benson</P>
  <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Craig Benson</P></TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top">Director</TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="top" NOWRAP ALIGN="center">May&nbsp;6, 2025</TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="16"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/s/ Cammie Dunaway</P>
  <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Cammie Dunaway</P></TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top">Director</TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="top" NOWRAP ALIGN="center">May&nbsp;6, 2025</TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="16"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/s/ Frances Rathke</P>
  <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Frances Rathke</P></TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top">Director</TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="top" NOWRAP ALIGN="center">May&nbsp;6, 2025</TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="16"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/s/ Stephen Spinelli, Jr.</P>
  <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Stephen Spinelli, Jr.</P></TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top">Director</TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="top" NOWRAP ALIGN="center">May&nbsp;6, 2025</TD></TR>
  <TR STYLE="font-size:1pt">
  <TD HEIGHT="16"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD>
  <TD HEIGHT="16" COLSPAN="2"></TD></TR>
  <TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
  <TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/s/ Christopher Tanco</P>
  <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Christopher Tanco</P></TD>
  <TD VALIGN="bottom">&nbsp;&nbsp;</TD>
  <TD VALIGN="top">Director</TD>
  <TD VALIGN="bottom">&nbsp;</TD>
  <TD VALIGN="top" NOWRAP ALIGN="center">May&nbsp;6, 2025</TD></TR>
  </TABLE>
  </DIV></Center>
  
  </BODY></HTML>
metadata_documents: [{"type": "S-8", "sequence": "1", "filename": "d806346ds8.htm", "description": "S-8", "secsgml_size_bytes": 53345}]
metadata_filer: {"company-data": {"conformed-name": "Planet Fitness, Inc.", "cik": "0001637207", "assigned-sic": "7997", "organization-name": "07 Trade & Services", "ein": "000000000", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-287010", "film-number": "25918360"}, "business-address": {"street1": "4 LIBERTY LANE WEST", "city": "HAMPTON", "state": "NH", "zip": "03842", "phone": "603-750-0001"}, "mail-address": {"street1": "4 LIBERTY LANE WEST", "city": "HAMPTON", "state": "NH", "zip": "03842"}}
text: S-8
  As filed with the Securities and Exchange Commission on May 6, 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
  PLANET FITNESS, INC.
  (Exact name of registrant as specified in its charter)
  Delaware
  38-3942097
  (State or other jurisdiction of
  incorporation or organization)
  (I.R.S. Employer
  Identification No.)
  4 Liberty Lane West
  Hampton, NH
  03842
  (Address of principal executive offices)
  (Zip Code)
  Planet Fitness, Inc. 2025 Omnibus Incentive Plan
  (Full title of the plan)
  Colleen Keating
  Chief
  Executive Officer
  Planet Fitness, Inc.
  4 Liberty Lane West
  Hampton, NH 03842
  (Name
  and address of agent for service)
  (603)
  750-0001
  (Telephone number, including area code, of agent for service)
  with copies to:
  Thomas Fraser
  Ropes & Gray LLP
  Prudential Tower
  800
  Boylston Street
  Boston, Massachusetts
  (617)
  951-7000
  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 complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐
  EXPLANATORY NOTE
  Planet Fitness, Inc. (the "Registrant") has prepared this Registration Statement in accordance with the requirements of Form
  S-8
  under the Securities Act of 1933, as amended, (the "Securities Act"), to register the issuance of 5,681,700 shares of its Class A common stock, par value $0.0001 per share (the "Class A
  common stock") consisting of (i) 5,300,000 shares of Class A common stock that are reserved for issuance in respect of the Planet Fitness, Inc. 2025 Omnibus Incentive Plan and (ii) up to 381,700 shares of Class A common stock
  underlying awards granted and outstanding under the Planet Fitness, Inc. 2015 Omnibus Incentive Plan.
  PART I
  INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
  Information required by Part I to be contained in the Section 10(a) prospectus is omitted from this Registration Statement in accordance with Rule 428
  under the Securities Act and the Note to Part I of Form
  S-8.
  Such information is not being filed with the Securities and Exchange Commission (the "Commission") either as part of this Registration
  Statement or as prospectuses or prospectus supplements pursuant to Rule 424 under the Securities Act. Such information has been or will be delivered to participants in the plan covered by this Registration Statement as specified by Rule 428(b)(1)
  under the Securities Act.
  PART II
  INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
  Item 3.
  Incorporation of Documents by Reference.
  The following documents filed by the Registrant with the Commission are incorporated herein by reference:
  (1)
  The Registrant's Annual Report on
  Form
  10-K
  for the fiscal year ended December 31, 2024 filed with the Commission on February 25, 2025 (File
  No. 001-37534),
  which contains audited
  financial statements for the Registrant's latest fiscal year for which such statements have been filed;
  (2)
  The information specifically incorporated by reference into the Registrant's Annual Report on Form
  10-K
  for the fiscal year ended December 
  31, 2024 from its
  definitive proxy statement
  on Schedule 14A for the 2025 Annual Meeting of Stockholders, filed
  with the Commission on March 28, 2025 (File
  No. 001-37534);
  (3)
  The Registrant's Current Reports on Form
  8-K
  filed with the
  Commission on
  February
  12, 2025
  and
  March
  18, 2025
  (each, File
  No. 001-37534);
  and
  (4)
  The description of the Registrant's Class 
  A common stock, $0.0001 par value per share, contained in
  Exhibit 4.5
  to Registrant's Annual Report on Form
  10-K
  for the fiscal year ended December 31, 2019, and any other amendments or reports filed for the purpose of updating such description (File
  No. 001-37534).
  All reports and other documents filed by the Registrant after the date hereof pursuant to Sections 13(a), 13(c), 14 and 15(d) of the
  Securities Exchange Act of 1934, as amended (the "Exchange Act") prior to the filing of a post-effective amendment which indicates that all securities offered hereby have been sold or which deregisters all securities then remaining unsold,
  shall be deemed to be incorporated by reference herein and to be part hereof from the date of filing of such reports and documents. Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed
  to be modified or superseded for the purposes of this Registration Statement to the extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or
  supersedes such statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.
  Item 4.
  Description of Securities.
  Not applicable.
  Item 5.
  Interests of Named Experts and Counsel.
  Not applicable.
  Item 6.
  Indemnification of Directors and Officers.
  Section 102(b)(7) of the General Corporation Law of the State of Delaware (the "DGCL") enables a corporation to eliminate or limit the personal
  liability of a director or officer for violations of the director's or officer's fiduciary duty, except (i) for any breach of the director's or officer's duty of loyalty to the corporation or its stockholders, (ii) for
  acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (iii) for liability of directors or officers for unlawful payment of dividends or unlawful stock purchase or redemptions pursuant to
  Section 174 of the DGCL, (iv) for any transaction from which a director or officer derived an improper personal benefit or (v) for liability of an officer in any action by or in the right of the corporation. The Registrant's
  certificate of incorporation includes a provision that eliminates the personal liability of directors for monetary damages for actions taken as a director to the fullest extent authorized by the DGCL.
  Section 145(a) of the DGCL provides in relevant part that a corporation may indemnify any person who was or is a party or is threatened to be made a
  party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the corporation), by reason of the fact that such person is or was a
  director or officer of the corporation, or is or was serving at the request of the corporation as a director or officer of another entity, against expenses (including attorneys' fees), judgments, fines and amounts paid in settlement actually
  and reasonably incurred by such person in connection with such action, suit or proceeding if such person acted in good faith and in a manner such person reasonably believed to be in or not opposed to the best interests of the corporation, and, with
  respect to any criminal action or proceeding, had no reasonable cause to believe such person's conduct was unlawful. The termination of any action, suit or proceeding by judgment, order, settlement, conviction or upon a plea of nolo contendere
  or its equivalent shall not, of itself, create a presumption that such person did not act in good faith and in a manner which such person reasonably believed to be in or not opposed to the best interests of the corporation, and, with respect to any
  criminal action or proceeding, had reasonable cause to believe that such person's conduct was unlawful.
  Section 145(b) of the DGCL provides in relevant part that a corporation may indemnify any person who
  was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor by reason of the fact that the person is or was a director or
  office of the corporation, or is or was serving at the request of the corporation as a director or officer of another entity, against expenses (including attorneys' fees) actually and reasonably incurred by such person in connection with the
  defense or settlement of such action or suit if the person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation and except that no indemnification shall be made in
  respect of any claim, issue or matter as to which such person shall have been adjudged to be liable to the corporation unless and only to the extent that the Delaware Court of Chancery or the court in which such action or suit was brought shall
  determine upon application that, despite the adjudication of liability but in view of all the circumstances of the case, such person is fairly and reasonably entitled to indemnity for such expenses which the Delaware Court of Chancery or such other
  court shall deem proper.
  The Registrant's bylaws provide that it will indemnify its directors and officers to the fullest extent permitted by law.
  The Registrant's bylaws also provide that the indemnification and advancement of expenses provided by, or granted pursuant to the bylaws, are not exclusive of any other rights to which those seeking indemnification or advancement of expenses
  may be entitled under any bylaw, agreement, vote of directors or stockholders or otherwise. Section 145(f) of the DGCL further provides that a right to indemnification or to advancement of expenses arising under a provision of the certificate
  of incorporation shall not be eliminated or impaired by an amendment to such provision after the occurrence of the act or omission which is the subject of the civil, criminal, administrative or investigative action, suit or proceeding for which
  indemnification or advancement of expenses is sought.
  The Registrant has also entered into indemnification agreements with each of its directors. Such
  agreements generally provide for indemnification by reason of being the Registrant's director. These agreements are in addition to the indemnification provided by the Registrant's certificate of incorporation and bylaws.
  The Registrant maintains officers' and directors' liability insurance that insures against liabilities that the Registrant's officers and
  directors may incur in such capacities. Section 145(g) of the DGCL provides that a corporation shall have power to purchase and maintain insurance on behalf of any person who is or was a director or officer of the corporation, or is or was
  serving at the request of the corporation as a director or officer of another entity, against any liability asserted against such person and incurred by such person in any such capacity, or arising out of such person's status as such, whether
  or not the corporation would have the power to indemnify such person against such liability under that section.
  For the undertaking with respect to
  indemnification, see Item 9 below.
  Item 7.
  Exemption from Registration Claimed.
  Not applicable.
  Item 8.
  Exhibits.
  Exhibit
  Number
  Description
  4.1
  Restated Certificate of Incorporation of Planet Fitness, Inc. (previously filed as Exhibit 3.1 to the Registration Statement on Form
  S-1
  (File
  No. 333-205141)
  filed on July 15, 2015 and incorporated herein by reference)
  4.2
  Amended and Restated Bylaws of Planet Fitness, Inc. (previously filed as Exhibit 3.2 to the Form
  8-K
  (File
  No. 001-37534)
  filed on March 18, 2025 and incorporated herein by reference)
  4.3
  Form of Class A Common Stock Certificate (previously filed as Exhibit 4.1 to the Registration Statement on Form
  S-1
  (File
  No. 333-205141)
  filed on July 27, 2015 and incorporated herein by reference)
  4.4
  Planet Fitness, Inc. 2025 Omnibus Incentive Plan (previously filed as Appendix A to the definitive proxy
  statement on Schedule 14A (File
  No. 001-37534)
  for the 2025 Annual Meeting of Stockholders, filed with the Commission on March 28, 2025 and incorporated herein by reference)
  5.1*
  Opinion of Ropes & Gray LLP
  23.1*
  Consent of KPMG LLP
  23.2*
  Consent of Ropes & Gray LLP (included in Exhibit 5.1)
  24.1*
  Power of Attorney (included on the signature page of the Registration Statement)
  107*
  Filing Fee Table
  *
  Filed herewith
  Item 9.
  Undertakings.
  (a) The undersigned Registrant hereby undertakes:
  (1) To file,
  during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement:
  (i) To include any prospectus
  required by Section 10(a)(3) of the Securities Act;
  (ii) To reflect in the prospectus any facts or events arising after the effective date of the
  Registration Statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the Registration Statement. Notwithstanding the foregoing, any
  increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in
  the form of a prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20 percent change in the maximum aggregate offering price set forth in the "Calculation
  of Registration Fee" table in the effective registration statement;
  (iii) To include any material information with respect to the plan of
  distribution not previously disclosed in the Registration Statement or any material change to such information in the Registration Statement;
  provided,
  however, that paragraphs (a)(1)(i) and (a)(1)(ii) above shall not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed with or furnished to the Commission by the
  Registrant pursuant to Section 13 or 15(d) of the Exchange Act that are incorporated by reference in the Registration Statement.
  (2) That, for the
  purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall
  be deemed to be the initial bona fide offering thereof.
  (3) To remove from registration by means of a post-effective amendment any of the securities
  being registered which remain unsold at the termination of the offering.
  (b) The undersigned Registrant hereby undertakes that, for purposes of
  determining any liability under the Securities Act, each filing of the Registrant's annual report pursuant to Section 13(a) or 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report
  pursuant to Section 15(d) of the Exchange Act) that is incorporated by reference in the Registration Statement shall be deemed to be a new Registration Statement relating to the securities offered therein, and the offering of such securities at
  that time shall be deemed to be the initial bona fide offering thereof.
  (c) Insofar as indemnification for liabilities arising under the Securities Act
  may be permitted to directors, officers and controlling persons of the Registrant pursuant to the foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the Commission such indemnification is against public policy
  as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling
  person of the Registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or
  controlling person in connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a
  court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.
  SIGNATURES
  Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the
  requirements for filing on Form
  S-8
  and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the city of Hampton, New Hampshire on
  May 6, 2025.
  PLANET FITNESS, INC.
  By:
  /s/ Colleen Keating
  Colleen Keating
  Chief Executive Officer
  POWER OF ATTORNEY
  Each person whose signature appears below constitutes and appoints Colleen Keating, Jay Stasz and Justin Vartanian, and each of them singly, their true and
  lawful
  attorneys-in-fact
  and agents, with full power of substitution and resubstitution in each of them singly, for them and in their name, place and stead, and in any
  and all capacities, to sign any and all amendments (including post-effective amendments) to this Registration Statement on Form
  S-8
  of Planet Fitness, Inc., and to file the same, with all exhibits thereto and
  other documents in connection therewith, with the Securities and Exchange Commission, granting to the
  attorneys-in-fact
  and agents, and each of them, full power and
  authority to do and perform each and every act and thing requisite or necessary to be done in or about the premises, as full to all intents and purposes as they might or could do in person, hereby ratifying and confirming all that the
  attorneys-in-fact
  and agents or any of each of them or their substitutes may lawfully do or cause to be done by virtue hereof.
  Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities and on the
  dates indicated.
  Name
  Title
  Date
  /s/ Colleen Keating
  Colleen Keating
  Chief Executive Officer and Director
  (Principal Executive Officer)
  May 6, 2025
  /s/ Jay Stasz
  Jay Stasz
  Chief Financial Officer
  (Principal Financial and Accounting Officer)
  May 6, 2025
  /s/ Bernard Acoca
  Bernard Acoca
  Director
  May 6, 2025
  /s/ Enshalla Anderson
  Enshalla Anderson
  Director
  May 6, 2025
  /s/ Craig Benson
  Craig Benson
  Director
  May 6, 2025
  /s/ Cammie Dunaway
  Cammie Dunaway
  Director
  May 6, 2025
  /s/ Frances Rathke
  Frances Rathke
  Director
  May 6, 2025
  /s/ Stephen Spinelli, Jr.
  Stephen Spinelli, Jr.
  Director
  May 6, 2025
  /s/ Christopher Tanco
  Christopher Tanco
  Director
  May 6, 2025