Planet Fitness, Inc.
US ˙ NYSE ˙ US72703H1014

SecurityPLNT / Planet Fitness, Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership43,150 shares
Latest Disclosed Value $ 3,209
Natixis Advisors, L.p. reports 36.24% increase in ownership of PLNT / Planet Fitness, Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 43,150 shares of Planet Fitness, Inc. (US:PLNT) valued at $3,209,497 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 31,673 shares of Planet Fitness, Inc.. This represents a change in shares of 36.24% during the quarter. The current value of the position is $2,223,520 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F PLANET FITNESS INC CL A COM 72703H101 43,150 11,477 36.24 3 0.00 0.0045
2026-02-10 2025-12-31 13F PLANET FITNESS INC CL A COM 72703H101 31,673 -1,748 -5.23 3 0.00 0.0049
2025-11-13 2025-09-30 13F PLANET FITNESS INC COM 72703H101 33,421 644 1.96 3 0.00 0.0051
2025-08-13 2025-06-30 13F PLANET FITNESS INC CL A COM 72703H101 32,777 4,978 17.91 4 50.00 0.0057
2025-05-08 2025-03-31 13F PLANET FITNESS COM 72703H101 27,799 13,361 92.54 3 100.00 0.0050
2025-02-10 2024-12-31 13F PLANET FITNESS COM 72703H101 14,438 3,909 37.13 1 0.0027
2024-11-06 2024-09-30 13F PLANET FITNESS COM 72703H101 10,529 10,529 1 0.0017
2024-04-25 2024-03-31 13F PLANET FITNESS INC CL A COM 72703H101 0 -10,797 -100.00 0 0.0000
2024-02-06 2023-12-31 13F PLANET FITNESS INC CL A COM 72703H101 10,797 10,797 1 0.0021
2023-11-13 2023-09-30 13F PLANET FITNESS INC CL A COM 72703H101 0 -11,089 -100.00 0 0.0000
2023-08-15 2023-06-30 13F PLANET FITNESS INC CL A COM 72703H101 11,089 -1,467 -11.68 1 0.0023
2023-05-11 2023-03-31 13F PLANET FITNESS COM 72703H101 12,556 12,556 1 0.0034
2022-11-14 2022-09-30 13F PLANET FITNESS COM 72703H101 0 -12,344 -100.00 0 -100.00
2022-08-12 2022-06-30 13F PLANET FITNESS COM 72703H101 12,344 -18,873 -60.46 840 -68.15 0.0037
2022-05-12 2022-03-31 13F PLANET FITNESS COM 72703H101 31,217 -4,609 -12.86 2,637 -18.74 0.0101
2022-02-08 2021-12-31 13F PLANET FITNESS COM 72703H101 35,826 35,826 3,245 0.0124
2020-04-27 2020-03-31 13F PLANET FITNESS COM 72703H101 0 -19,528 -100.00 0 -100.00
2020-02-10 2019-12-31 13F PLANET FITNESS COM 72703H101 19,528 19,528 1,458 0.0103
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.