STEADFAST CAPITAL MANAGEMENT LP - 31 Mar 2026 SCHEDULE 13G/A Report for Planet Fitness, Inc. Class A Common Stock, par value $0.0001 per share (PLNT)

Filing manager
STEADFAST CAPITAL MANAGEMENT LP
Reporting owner
Steadfast Capital Management LP
Security
Planet Fitness, Inc. Class A Common Stock, par value $0.0001 per share
Beneficially owned shares
2,212,592 shares
Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13G/A

Passive or exempt beneficial ownership filing.

Ownership

2.8%

Beneficial ownership of this reported class.

Shares

2,212,592 shares

Shares beneficially owned as disclosed.

Event date

31 Mar 2026

Date tied to the ownership event or amendment.

Accepted by SEC

15 May 2026

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Class ownership
2.8%
Subject security Names, identifiers, and filing context for this profile. 2 source fields
Symbol
PLNT
Shares outstanding
79,021,143 shares
Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
SCHEDULE 13G/A
Accepted by SEC
15 May 2026, 16:25:57 UTC
Event date
31 Mar 2026
Prior SEC filing
15 Jan 2026
Source filing
View source filing

Key filing fact

STEADFAST CAPITAL MANAGEMENT LP disclosed 2.8% ownership in Planet Fitness, Inc. Class A Common Stock, par value $0.0001 per share (PLNT) on 31 Mar 2026.

Key facts

  • STEADFAST CAPITAL MANAGEMENT LP filed SCHEDULE 13G/A for Planet Fitness, Inc. Class A Common Stock, par value $0.0001 per share (PLNT).
  • Disclosed ownership: 2.8%.
  • Date of event: 31 Mar 2026.

Change

  • Previous schedule filing date: 15 Jan 2026.
  • Current filing was accepted on 15 May 2026, 16:25.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

View source filing

Reporting persons

Disclosed reporting parties (4)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
Steadfast Capital Management LP 2.8% 2,212,592 0 2,212,592 /s/ Sheena Koshy Chief Operating Officer
American Steadfast, L.P. 1% 807,399 0 807,399 /s/ Sheena Koshy Chief Operating Officer of Steadfast Capital Management LP, Attorney-in-Fact
Steadfast International Master Fund Ltd. 1.8% 1,405,193 0 1,405,193 /s/ Sheena Koshy Director
Robert S. Pitts, Jr. 2.8% 2,212,592 0 2,212,592 Robert S. Pitts, Jr. Robert S. Pitts, Jr.
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