Planet Fitness, Inc.
MX ˙ BMV ˙ US72703H1014
SecurityMX:PLNT / Planet Fitness, Inc.
InstitutionBamco Inc /ny/
Latest Disclosed Ownership1,200,064 shares
Latest Disclosed Value $ 89,260,760
Bamco Inc /ny/ reports 4.35% increase in ownership of PLNT / Planet Fitness, Inc.

On May 15, 2026 - Bamco Inc /ny/ filed a 13F-HR form disclosing ownership of 1,200,064 shares of Planet Fitness, Inc. (MX:PLNT) valued at $89,260,760 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,150,028 shares of Planet Fitness, Inc.. This represents a change in shares of 4.35% during the quarter.

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)
2026-05-15 2026-03-31 13F PLANET FITNESS MASTER ISSUER CL A 72703H101 1,200,064 50,036 4.35 89,261 -28.44 0.2694
2026-02-17 2025-12-31 13F PLANET FITNESS CL A 72703H101 1,150,028 0 0.00 124,744 4.50 0.3380
2025-11-14 2025-09-30 13F PLANET FITNESS CL A 72703H101 1,150,028 28 0.00 119,373 -4.81 0.3165
2025-08-14 2025-06-30 13F PLANET FITNESS CL A 72703H101 1,150,000 0 0.00 125,408 12.88 0.3400
2025-05-15 2025-03-31 13F PLANET FITNESS CL A 72703H101 1,150,000 -100,000 -8.00 111,102 -10.10 0.3263
2025-02-14 2024-12-31 13F PLANET FITNESS CL A 72703H101 1,250,000 0 0.00 123,588 21.73 0.3195
2024-11-14 2024-09-30 13F PLANET FITNESS CL A 72703H101 1,250,000 -75,000 -5.66 101,525 4.12 0.2693
2024-08-14 2024-06-30 13F PLANET FITNESS CL A 72703H101 1,325,000 0 0.00 97,507 17.50 0.2792
2024-05-15 2024-03-31 13F PLANET FITNESS CL A 72703H101 1,325,000 125,000 10.42 82,985 -5.27 0.2212
2024-02-14 2023-12-31 13F PLANET FITNESS CL A 72703H101 1,200,000 0 0.00 87,600 48.43 0.2333
2023-11-14 2023-09-30 13F PLANET FITNESS CL A 72703H101 1,200,000 200,000 20.00 59,016 -12.49 0.1715
2023-08-14 2023-06-30 13F PLANET FITNESS CL A 72703H101 1,000,000 0 0.00 67,440 -13.17 0.1867
2023-05-15 2023-03-31 13F PLANET FITNESS CL A 72703H101 1,000,000 0 0.00 77,670 -1.43 0.2332
2023-02-14 2022-12-31 13F PLANET FITNESS CL A 72703H101 1,000,000 0 0.00 78,800 36.66 0.2646
2022-11-14 2022-09-30 13F PLANET FITNESS CL A 72703H101 1,000,000 75,000 8.11 57,660 -8.34 0.1863
2022-08-15 2022-06-30 13F PLANET FITNESS CL A 72703H101 925,000 125,000 15.62 62,909 -6.92 0.2020
2022-05-13 2022-03-31 13F PLANET FITNESS CL A 72703H101 800,000 0 0.00 67,584 -6.73 0.1659
2022-02-14 2021-12-31 13F PLANET FITNESS CL A 72703H101 800,000 -10,373 -1.28 72,464 13.84 0.1537
2021-11-12 2021-09-30 13F PLANET FITNESS CL A 72703H101 810,373 10,373 1.30 63,655 5.74 0.1442
2021-08-13 2021-06-30 13F PLANET FITNESS CL A 72703H101 800,000 0 0.00 60,200 -2.65 0.1378
2021-05-19 2021-03-31 13F PLANET FITNESS CL A 72703H101 800,000 0 0.00 61,840 -0.43 0.1524
2021-02-12 2020-12-31 13F PLANET FITNESS CL A 72703H101 800,000 0 0.00 62,104 25.98 0.1536
2020-11-13 2020-09-30 13F PLANET FITNESS CL A 72703H101 800,000 0 0.00 49,296 1.73 0.1513
2020-08-14 2020-06-30 13F PLANET FITNESS CL A 72703H101 800,000 0 0.00 48,456 24.37 0.1752
2020-05-15 2020-03-31 13F PLANET FITNESS CL A 72703H101 800,000 0 0.00 38,960 -34.79 0.1909
2020-02-18 2019-12-31 13F PLANET FITNESS CL A 72703H101 800,000 0 0.00 59,744 29.05 0.2281
2019-11-14 2019-09-30 13F PLANET FITNESS CL A 72703H101 800,000 0 0.00 46,296 -20.11 0.1904
2019-08-15 2019-06-30 13F PLANET FITNESS CL A 72703H101 800,000 0 0.00 57,952 5.41 0.2324
2019-05-15 2019-03-31 13F PLANET FITNESS CL A 72703H101 800,000 -22,000 -2.68 54,976 24.73 0.2331
2019-02-14 2018-12-31 13F PLANET FITNESS CL A 72703H101 822,000 0 0.00 44,076 -0.76 0.2231
2018-11-14 2018-09-30 13F PLANET FITNESS CL A 72703H101 822,000 0 0.00 44,413 22.96 0.1840
2018-08-14 2018-06-30 13F PLANET FITNESS CL A 72703H101 822,000 222,000 37.00 36,119 59.38 0.1579
2018-05-09 2018-03-31 13F PLANET FITNESS CL A 72703H101 600,000 600,000 22,662 0.1043
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.