Planet Fitness, Inc.
US ˙ NYSE ˙ US72703H1014

SecurityPLNT / Planet Fitness, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership83,134 shares
Latest Disclosed Value $ 9,017,659
Sei Investments Co reports 11.77% decrease in ownership of PLNT / Planet Fitness, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 83,134 shares of Planet Fitness, Inc. (US:PLNT) valued at $9,017,545 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 94,226 shares of Planet Fitness, Inc.. This represents a change in shares of -11.77% during the quarter. The current value of the position is $4,267,268 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)
2026-02-13 2025-12-31 13F PLANET FITNESS CL A 72703H101 83,134 -11,092 -11.77 9,018 -7.80 0.0089
2025-11-13 2025-09-30 13F PLANET FITNESS CL A 72703H101 94,226 -21,812 -18.80 9,781 -22.71 0.0105
2025-08-14 2025-06-30 13F PLANET FITNESS CL A 72703H101 116,038 -2,245 -1.90 12,654 10.73 0.0147
2025-05-14 2025-03-31 13F/A-1 PLANET FITNESS CL A 72703H101 118,283 8,018 7.27 11,427 4.83 0.0147
2025-05-13 2025-03-31 13F PLANET FITNESS CL A 72703H101 113,026 2,761 11,165 0.0121
2025-02-11 2024-12-31 13F PLANET FITNESS CL A 72703H101 110,265 -19,394 -14.96 10,902 3.52 0.0140
2024-11-12 2024-09-30 13F PLANET FITNESS CL A 72703H101 129,659 -4,761 -3.54 10,531 6.46 0.0137
2024-08-13 2024-06-30 13F PLANET FITNESS CL A 72703H101 134,420 -1,457 -1.07 9,892 16.24 0.0140
2024-05-07 2024-03-31 13F PLANET FITNESS CL A 72703H101 135,877 -14,852 -9.85 8,510 -22.67 0.0125
2024-02-14 2023-12-31 13F PLANET FITNESS CL A 72703H101 150,729 3,745 2.55 11,003 52.23 0.0177
2023-11-14 2023-09-30 13F PLANET FITNESS CL A 72703H101 146,984 -30,149 -17.02 7,229 -39.49 0.0130
2023-08-11 2023-06-30 13F PLANET FITNESS CL A 72703H101 177,133 6,312 3.70 11,946 -9.96 0.0208
2023-05-12 2023-03-31 13F PLANET FITNESS CL A 72703H101 170,821 43,799 34.48 13,268 32.55 0.0246
2023-02-10 2022-12-31 13F PLANET FITNESS CL A 72703H101 127,022 -44,099 -25.77 10,009 1.44 0.0222
2022-11-14 2022-09-30 13F PLANET FITNESS CL A 72703H101 171,121 9,197 5.68 9,867 -10.43 0.0220
2022-08-15 2022-06-30 13F PLANET FITNESS CL A 72703H101 161,924 49,654 44.23 11,016 15.99 0.0238
2022-05-13 2022-03-31 13F PLANET FITNESS CL A 72703H101 112,270 3,441 3.16 9,497 -3.65 0.0191
2022-02-14 2021-12-31 13F PLANET FITNESS CL A 72703H101 108,829 10,571 10.76 9,857 27.71 0.0185
2021-11-12 2021-09-30 13F PLANET FITNESS CL A 72703H101 98,258 16,427 20.07 7,718 25.33 0.0162
2021-08-06 2021-06-30 13F PLANET FITNESS CL A 72703H101 81,831 17,948 28.10 6,158 24.71 0.0137
2021-05-12 2021-03-31 13F PLANET FITNESS CL A 72703H101 63,883 -18,170 -22.14 4,938 -22.48 0.0124
2021-02-08 2020-12-31 13F PLANET FITNESS CL A 72703H101 82,053 20,759 33.87 6,370 68.65 0.0165
2020-12-04 2020-09-30 13F/A-1 PLANET FITNESS CL A 72703H101 61,294 1,703 2.86 3,777 4.57 0.0109
2020-11-06 2020-09-30 13F PLANET FITNESS CL A 72703H101 61,438 1,847 3,786 9,115.8462
2020-08-17 2020-06-30 13F/A-1 PLANET FITNESS CL A 72703H101 59,591 -3,449 -5.47 3,612 23.40 0.0112
2020-08-11 2020-06-30 13F PLANET FITNESS CL A 72703H101 35,355 -27,685 2,623 7,115.0271
2020-05-14 2020-03-31 13F PLANET FITNESS CL A 72703H101 63,040 10,712 20.47 2,927 -25.14 0.0108
2020-02-06 2019-12-31 13F PLANET FITNESS CL A 72703H101 52,328 -54,858 -51.18 3,910 -36.74 0.0117
2019-11-12 2019-09-30 13F PLANET FITNESS CL A 72703H101 107,186 -25,951 -19.49 6,181 -35.95 0.0158
2019-08-14 2019-06-30 13F PLANET FITNESS CL A 72703H101 133,137 62,006 87.17 9,651 100.27 0.0315
2019-05-15 2019-03-31 13F PLANET FITNESS CL A 72703H101 71,131 -2,899 -3.92 4,819 20.75 0.0162
2019-02-13 2018-12-31 13F PLANET FITNESS CL A 72703H101 74,030 15,347 26.15 3,991 25.90 0.0142
2018-11-08 2018-09-30 13F PLANET FITNESS CL A 72703H101 58,683 -52,002 -46.98 3,170 -34.81 0.0115
2018-08-03 2018-06-30 13F PLANET FITNESS CL A 72703H101 110,685 12,690 12.95 4,863 31.40 0.0165
2018-05-11 2018-03-31 13F PLANET FITNESS CL A 72703H101 97,995 -70,277 -41.76 3,701 -36.49 0.0142
2018-02-08 2017-12-31 13F PLANET FITNESS CL A 72703H101 168,272 -67,266 -28.56 5,827 -8.31 0.0202
2017-11-06 2017-09-30 13F PLANET FITNESS CL A 72703H101 235,538 364 0.15 6,355 15.78 0.0226
2017-07-31 2017-06-30 13F PLANET FITNESS CL A 72703H101 235,174 62,899 36.51 5,489 65.33 0.0219
2017-05-05 2017-03-31 13F PLANET FITNESS CL A 72703H101 172,275 165,968 2,631.49 3,320 2,534.92 0.0145
2017-02-02 2016-12-31 13F PLANET FITNESS CL A 72703H101 6,307 4,305 215.03 126 215.00 0.0006
2016-11-04 2016-09-30 13F PLANET FITNESS CL A 72703H101 2,002 2,002 40 0.0002
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.