Planet Fitness, Inc. Schedule 13G/A reports that Steadfast Capital Management and related persons beneficially owned 2,212,592 shares of Class A Common Stock as of March 31, 2026. The filing states this holding represented 2.8% of the outstanding Common Stock based on 79,697,889 shares outstanding as of February 20, 2026.
The filing lists component holdings: American Steadfast, L.P.807,399 shares and Steadfast International Master Fund Ltd.1,405,193 shares. Shared voting and dispositive power are reported among the Investment Manager, American Steadfast and Robert S. Pitts, Jr.
Positive
None.
Negative
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Insights
Steadfast holds a modest 2.8% stake in Planet Fitness as of March 31, 2026.
Steadfast Capital Management, American Steadfast and the Offshore Fund collectively report beneficial ownership of 2,212,592 shares, with shared voting/dispositive authority attributed to the Investment Manager and Mr. Pitts. The filing ties the percentage to February 20, 2026 outstanding share count.
Cash‑flow treatment and sale intentions are not disclosed; subsequent filings would show any change in position. Watch for amendments or Form 13D filings that would indicate activist intent or increased ownership.
Ownership is disclosed as passive group ownership under Schedule 13G/A.
The Schedule 13G/A format and Item 5 indicate the Reporting Persons state ownership as "5 Percent or Less of a Class," consistent with a passive investor profile. The report documents shared voting and dispositive power rather than sole control.
Confirmations in future filings (e.g., additional amendments) would clarify any shifts in voting arrangements or aggregate percentages relative to updated share counts.
Key Figures
Beneficial ownership:2,212,592 sharesPercent of class:2.8%American Steadfast holdings:807,399 shares+2 more
5 metrics
Beneficial ownership2,212,592 sharesas of March 31, 2026
Percent of class2.8%based on 79,697,889 shares outstanding as of February 20, 2026
American Steadfast holdings807,399 sharescomponent holding reported in filing
Offshore Fund holdings1,405,193 sharescomponent holding reported in filing
Outstanding shares used79,697,889 sharesas of February 20, 2026 per issuer 10-K
Key Terms
Schedule 13G/A, beneficially owned, shared dispositive power, percent of class
4 terms
Schedule 13G/Aregulatory
"Schedule 13G/A reports that Steadfast Capital Management and related persons beneficially owned"
A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.
beneficially ownedfinancial
"the Reporting Persons beneficially owned an aggregate of 2,212,592 shares of the Issuer's Common Stock"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
shared dispositive powerregulatory
"shared power with the Investment Manager and Mr. Pitts to dispose or direct the disposition of the 807,399 shares"
percent of classmarket
"represented 2.8% of the outstanding Common Stock"
Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.
How many Planet Fitness (PLNT) shares does Steadfast report owning?
The filing states 2,212,592 shares beneficially owned as of March 31, 2026. This aggregate is the sum reported for the Investment Manager and affiliated funds and persons in the Schedule 13G/A.
What percentage of PLNT outstanding stock does Steadfast's holding represent?
Steadfast's holdings are reported as 2.8% of outstanding Common Stock, calculated using 79,697,889 shares outstanding as of February 20, 2026 per the issuer's Form 10-K.
Which entities comprise the Reporting Persons in the 13G/A filing?
The filing lists Steadfast Capital Management LP, American Steadfast, L.P., Steadfast International Master Fund Ltd., and Robert S. Pitts, Jr. as the Reporting Persons with shared authorities.
Does the filing disclose voting or dispositive power for the shares?
Yes. The filing reports shared voting and shared dispositive power over the component holdings, with no sole voting or sole dispositive power claimed by the Reporting Persons.
What is the as-of date for the beneficial ownership figures?
The ownership amounts are stated as of March 31, 2026, while the percentage of class uses the issuer's outstanding share count as of February 20, 2026 from the Form 10-K.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 1)
Planet Fitness, Inc.
(Name of Issuer)
Class A Common Stock, par value $0.0001 per share
(Title of Class of Securities)
72703H101
(CUSIP Number)
03/31/2026
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
72703H101
1
Names of Reporting Persons
Steadfast Capital Management LP
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
2,212,592.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
2,212,592.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
2,212,592.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
2.8 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
CUSIP Number(s):
72703H101
1
Names of Reporting Persons
American Steadfast, L.P.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
807,399.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
807,399.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
807,399.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
1.0 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
CUSIP Number(s):
72703H101
1
Names of Reporting Persons
Steadfast International Master Fund Ltd.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
CAYMAN ISLANDS
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,405,193.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,405,193.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,405,193.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
1.8 %
12
Type of Reporting Person (See Instructions)
CO
SCHEDULE 13G
CUSIP Number(s):
72703H101
1
Names of Reporting Persons
Robert S. Pitts, Jr.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
2,212,592.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
2,212,592.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
2,212,592.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
2.8 %
12
Type of Reporting Person (See Instructions)
IN
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
Planet Fitness, Inc.
(b)
Address of issuer's principal executive offices:
4 Liberty Lane West, Hampton, NH 03842
Item 2.
(a)
Name of person filing:
The names of the persons filing this statement on Schedule 13G (collectively, the "Reporting Persons") are:
- Steadfast Capital Management LP, a Delaware limited partnership (the "Investment Manager").
- American Steadfast, L.P., a Delaware limited partnership ("American Steadfast").
- Steadfast International Master Fund Ltd., a Cayman Islands exempted company (the "Offshore Fund").
- Robert S. Pitts, Jr., a United States Citizen ("Mr. Pitts").
Mr. Pitts is the controlling principal of the Investment Manager. The Investment Manager has the power to vote and dispose of the securities held by American Steadfast and the Offshore Fund.
(b)
Address or principal business office or, if none, residence:
The business address of each of Mr. Pitts, the Investment Manager and American Steadfast is 450 Park Avenue, 20th Floor, New York, New York 10022.
The business address of the Offshore Fund is c/o Morgan Stanley Fund Services (Cayman) Ltd., 190 Elgin Avenue, George Town, Grand Cayman KY1-9008, Cayman Islands.
(c)
Citizenship:
Each of the Investment Manager and American Steadfast is a limited partnership formed under the laws of the State of Delaware.
The Offshore Fund is an exempted company formed under the laws of the Cayman Islands.
Mr. Pitts is a citizen of the United States.
(d)
Title of class of securities:
Class A Common Stock, par value $0.0001 per share
(e)
CUSIP No.:
72703H101
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
As of March 31, 2026, the Reporting Persons beneficially owned an aggregate of 2,212,592 shares of the Issuer's Common Stock. Specifically:
(i) The Investment Manager beneficially owned 2,212,592 shares of Common Stock.
(ii) American Steadfast beneficially owned 807,399 shares of Common Stock.
(iii) The Offshore Fund beneficially owned 1,405,193 shares of Common Stock.
(iv) Mr. Pitts beneficially owned 2,212,592 shares of Common Stock.
(v) Collectively, the Reporting Persons beneficially owned 2,212,592 shares of Common Stock.
(b)
Percent of class:
As of March 31, 2026, the Reporting Persons may be deemed to have beneficially owned 2,212,592 shares of Common Stock or 2.8% of the Issuer's Common Stock outstanding, which percentage was calculated based on 79,697,889 shares of Common Stock outstanding as of February 20, 2026, as per the information reported in the Issuer's Form 10-K filed February 25, 2026. Specifically:
(i) The Investment Manager's beneficial ownership of 2,212,592 shares of Common Stock represented 2.8% of the outstanding Common Stock.
(ii) American Steadfast's beneficial ownership of 807,399 shares of Common Stock represented 1% of the outstanding Common Stock.
(iii) The Offshore Fund's beneficial ownership of 1,405,193 shares of Common Stock represented 1.8% of the outstanding Common Stock.
(iv) Mr. Pitts' beneficial ownership of 2,212,592 shares of Common Stock represented 2.8% of the outstanding Common Stock.
(v) Collectively, the Reporting Persons' beneficial ownership of 2,212,592 shares of Common Stock represented 2.8% of the outstanding Common Stock.
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
Not applicable.
(ii) Shared power to vote or to direct the vote:
American Steadfast had shared power with the Investment Manager and Mr. Pitts to vote or direct the vote of the 807,399 shares of Common Stock beneficially owned by American Steadfast.
The Offshore Fund had shared power with the Investment Manager and Mr. Pitts to vote or direct the vote of the 1,405,193 shares of Common Stock beneficially owned by the Offshore Fund.
(iii) Sole power to dispose or to direct the disposition of:
Not applicable.
(iv) Shared power to dispose or to direct the disposition of:
American Steadfast had shared power with the Investment Manager and Mr. Pitts to dispose or direct the disposition of the 807,399 shares of Common Stock beneficially owned by American Steadfast.
The Offshore Fund had shared power with the Investment Manager and Mr. Pitts to dispose or direct the disposition of the 1,405,193 shares of Common Stock beneficially owned by the Offshore Fund.
Item 5.
Ownership of 5 Percent or Less of a Class.
Ownership of 5 percent or less of a class
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
Not Applicable
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
Not Applicable
Item 8.
Identification and Classification of Members of the Group.
If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(J), so indicate under Item 3(j) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group.
See Exhibit B to the Schedule 13G filed by the Reporting Persons with the Securities and Exchange Commission on January 15, 2026.
Item 9.
Notice of Dissolution of Group.
Not Applicable
Item 10.
Certifications:
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
Steadfast Capital Management LP
Signature:
/s/ Sheena Koshy
Name/Title:
Chief Operating Officer
Date:
05/15/2026
American Steadfast, L.P.
Signature:
/s/ Sheena Koshy
Name/Title:
Chief Operating Officer of Steadfast Capital Management LP, Attorney-in-Fact
