Planet Fitness, Inc.
US ˙ NYSE ˙ US72703H1014

SecurityPLNT / Planet Fitness, Inc.
InstitutionSimplex Trading, Llc
Latest Disclosed Ownership369 shares
Latest Disclosed Value $ 27,446
Simplex Trading, Llc ownership in PLNT / Planet Fitness, Inc.

On May 14, 2026 - Simplex Trading, Llc filed a 13F-HR form disclosing ownership of 369 shares of Planet Fitness, Inc. (US:PLNT) valued at $27,446 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 0 shares of Planet Fitness, Inc.. The current value of the position is $19,015 USD.

Simplex Trading, Llc has a history of taking positions in derivatives of the underlying security (PLNT) in the form of stock options. The firm currently holds call options representing 3,400 of underlying shares valued at $252,892 USD and put options representing 21,100 of underlying shares valued at $1,569,417 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

PLNT / Planet Fitness, Inc. Historical Put/Call Ratio
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)
2026-05-14 2026-03-31 13F PLANET FITNESS MASTER ISSUER COM 72703H101 369 369 27 0.0000
2026-02-11 2025-12-31 13F PLANET FITNESS COM 72703H101 0 -5,420 -100.00 0 0.0000
2025-11-12 2025-09-30 13F PLANET FITNESS COM 72703H101 5,420 -20,943 -79.44 1 -100.00 0.0003
2025-08-05 2025-06-30 13F PLANET FITNESS COM 72703H101 26,363 13,314 102.03 3 100.00 0.0016
2025-05-12 2025-03-31 13F PLANET FITNESS COM 72703H101 13,049 -4,193 -24.32 1 0.00 0.0008
2025-02-11 2024-12-31 13F PLANET FITNESS COM 72703H101 17,242 8,679 101.35 2 0.0010
2024-11-08 2024-09-30 13F PLANET FITNESS COM 72703H101 8,563 -21,654 -71.66 1 -100.00 0.0004
2024-07-25 2024-06-30 13F PLANET FITNESS COM 72703H101 30,217 -41,035 -57.59 2 -50.00 0.0014
2024-04-25 2024-03-31 13F PLANET FITNESS COM 72703H101 71,252 66,710 1,468.74 4 0.0026
2024-02-02 2023-12-31 13F PLANET FITNESS COM 72703H101 4,542 4,542 0 0.0002
2023-11-01 2023-09-30 13F PLANET FITNESS COM 72703H101 0 -8,434 -100.00 0 0.0000
2023-08-04 2023-06-30 13F PLANET FITNESS COM 72703H101 8,434 8,434 1 0.0005
2023-04-27 2023-03-31 13F PLANET FITNESS COM 72703H101 0 -5,816 -100.00 0 0.0000
2023-02-02 2022-12-31 13F PLANET FITNESS COM 72703H101 5,816 3,087 113.12 0 -100.00 0.0005
2022-11-04 2022-09-30 13F PLANET FITNESS COM 72703H101 2,729 2,729 157 0.0002
2022-05-02 2022-03-31 13F PLANET FITNESS COM 72703H101 0 -22,306 -100.00 0 -100.00
2022-02-04 2021-12-31 13F PLANET FITNESS COM 72703H101 22,306 0 0.00 1,682 0.00 0.0016
2021-10-28 2021-09-30 13F PLANET FITNESS COM 72703H101 22,306 0 0.00 1,682 0.24 0.0016
2021-08-12 2021-06-30 13F PLANET FITNESS COM 72703H101 22,306 11,798 112.28 1,678 106.65 0.0016
2021-04-26 2021-03-31 13F PLANET FITNESS COM 72703H101 10,508 -12,064 -53.45 812 -53.65 0.0015
2021-02-02 2020-12-31 13F PLANET FITNESS COM 72703H101 22,572 -19,850 -46.79 1,752 -32.98 0.0023
2020-10-14 2020-09-30 13F PLANET FITNESS COM 72703H101 42,422 42,422 87.94 2,614 49.20 0.0036
2020-07-13 2020-06-30 13F PLANET FITNESS COM 72703H101 0 -5,000 -100.00 0 -100.00
2020-04-29 2020-03-31 13F PLANET FITNESS COM 72703H101 5,000 5,000 243 0.0004
2019-01-16 2018-12-31 13F PLANET FITNESS COM 72703H101 0 -18,043 -100.00 0 -100.00
2018-10-23 2018-09-30 13F PLANET FITNESS COM 72703H101 18,043 18,043 974 0.0031
2018-07-30 2018-06-30 13F PLANET FITNESS COM 72703H101 0 -22,348 -100.00 0 -100.00
2018-04-26 2018-03-31 13F PLANET FITNESS COM 72703H101 22,348 22,348 844 0.0371
2018-01-10 2017-12-31 13F PLANET FITNESS COM 72703H101 0 -2,014 -100.00 0 -100.00
2017-10-25 2017-09-30 13F PLANET FITNESS COM 72703H101 2,014 -44,619 -95.68 54 -95.04 0.0022
2017-07-12 2017-06-30 13F PLANET FITNESS COM 72703H101 46,633 46,633 1,088 0.0473
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-14 2026-03-31 13F PLANET FITNESS MASTER ISSUER CALL Call 3,400 -68.52 253 -78.48 n/a n/a n/a
2026-02-11 2025-12-31 13F PLANET FITNESS CALL Call 10,800 -49.77 1,171 58,450.00 n/a n/a n/a
2025-11-12 2025-09-30 13F PLANET FITNESS CALL Call 21,500 -85.48 2 -87.50 n/a n/a n/a
2025-08-05 2025-06-30 13F PLANET FITNESS CALL Call 148,100 15.07 16 33.33 n/a n/a n/a
2025-05-12 2025-03-31 13F PLANET FITNESS CALL Call 128,700 595.68 12 1,100.00 n/a n/a n/a
2025-02-11 2024-12-31 13F PLANET FITNESS CALL Call 18,500 -50.93 2 -66.67 n/a n/a n/a
2024-11-08 2024-09-30 13F PLANET FITNESS CALL Call 37,700 227.83 3 n/a n/a n/a
2024-07-25 2024-06-30 13F PLANET FITNESS CALL Call 11,500 -94.55 1 -100.00 n/a n/a n/a
2024-04-25 2024-03-31 13F PLANET FITNESS CALL Call 211,200 37.14 13 18.18 n/a n/a n/a
2024-02-02 2023-12-31 13F PLANET FITNESS CALL Call 154,000 184.66 11 450.00 n/a n/a n/a
2023-11-01 2023-09-30 13F PLANET FITNESS CALL Call 54,100 469.47 3 n/a n/a n/a
2023-08-04 2023-06-30 13F PLANET FITNESS CALL Call 9,500 -86.75 1 -100.00 n/a n/a n/a
2023-04-27 2023-03-31 13F PLANET FITNESS CALL Call 71,700 443.18 6 400.00 n/a n/a n/a
2023-02-02 2022-12-31 13F PLANET FITNESS CALL Call 13,200 23.36 1 -99.84 n/a n/a n/a
2022-11-04 2022-09-30 13F PLANET FITNESS CALL Call 10,700 -61.65 616 -67.53 n/a n/a n/a
2022-08-03 2022-06-30 13F PLANET FITNESS CALL Call 27,900 4.49 1,897 -15.88 n/a n/a n/a
2022-05-02 2022-03-31 13F PLANET FITNESS CALL Call 26,700 -41.45 2,255 -45.40 n/a n/a n/a
2022-02-23 2021-12-31 13F/A PLANET FITNESS CALL Call 45,600 188.61 4,130 246.77 n/a n/a n/a
2022-02-04 2021-12-31 13F PLANET FITNESS CALL Call 15,800 1,191 n/a n/a n/a
2021-10-28 2021-09-30 13F PLANET FITNESS CALL Call 15,800 8.97 1,191 9.17 n/a n/a n/a
2021-08-12 2021-06-30 13F PLANET FITNESS CALL Call 14,500 2,759.96 1,091 -72.16 n/a n/a n/a
2021-04-26 2021-03-31 13F PLANET FITNESS CALL Call 507 -14.36 3,919 -14.71 n/a n/a n/a
2021-02-02 2020-12-31 13F PLANET FITNESS CALL Call 592 -65.22 4,595 -56.18 n/a n/a n/a
2020-10-14 2020-09-30 13F PLANET FITNESS CALL Call 1,702 122.19 10,487 126.06 n/a n/a n/a
2020-07-13 2020-06-30 13F PLANET FITNESS CALL Call 766 37.03 4,639 70.43 n/a n/a n/a
2020-04-29 2020-03-31 13F PLANET FITNESS CALL Call 559 238.79 2,722 120.94 n/a n/a n/a
2020-02-05 2019-12-31 13F PLANET FITNESS CALL Call 165 -66.67 1,232 -56.98 n/a n/a n/a
2019-10-15 2019-09-30 13F PLANET FITNESS CALL Call 495 -25.23 2,864 -40.27 n/a n/a n/a
2019-07-26 2019-06-30 13F PLANET FITNESS CALL Call 662 -14.91 4,795 -10.31 n/a n/a n/a
2019-04-18 2019-03-31 13F PLANET FITNESS CALL Call 778 114.92 5,346 175.43 n/a n/a n/a
2019-01-16 2018-12-31 13F PLANET FITNESS CALL Call 362 187.30 1,941 185.44 n/a n/a n/a
2018-10-23 2018-09-30 13F PLANET FITNESS CALL Call 126 -23.64 680 -6.21 n/a n/a n/a
2018-07-30 2018-06-30 13F PLANET FITNESS CALL Call 165 211.32 725 1,476.09 n/a n/a n/a
2018-04-26 2018-03-31 13F PLANET FITNESS CALL Call 53 -48.04 46 -8.00 n/a n/a n/a
2018-01-10 2017-12-31 13F PLANET FITNESS CALL Call 102 168.42 50 108.33 n/a n/a n/a
2017-10-25 2017-09-30 13F PLANET FITNESS CALL Call 38 -73.61 24 -22.58 n/a n/a n/a
2017-07-12 2017-06-30 13F PLANET FITNESS CALL Call 144 -58.38 31 72.22 n/a n/a n/a
2017-04-21 2017-03-31 13F PLANET FITNESS CALL Call 346 31.56 18 -55.00 n/a n/a n/a
2017-01-11 2016-12-31 13F PLANET FITNESS CALL Call 263 -13.20 40 -60.00 n/a n/a n/a
2016-10-07 2016-09-30 13F PLANET FITNESS CALL Call 303 17.90 100 19.05 n/a n/a n/a
2016-07-18 2016-06-30 13F PLANET FITNESS CALL Call 257 29.15 84 50.00 n/a n/a n/a
2016-04-14 2016-03-31 13F PLANET FITNESS CALL Call 199 184.29 56 273.33 n/a n/a n/a
2016-01-20 2015-12-31 13F PLANET FITNESS CALL Call 70 15 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-14 2026-03-31 13F PLANET FITNESS MASTER ISSUER PUT Put 21,100 -65.80 1,569 -76.55 n/a n/a n/a
2026-02-11 2025-12-31 13F PLANET FITNESS PUT Put 61,700 140.08 6,693 334,500.00 n/a n/a n/a
2025-11-12 2025-09-30 13F PLANET FITNESS PUT Put 25,700 -24.63 3 -33.33 n/a n/a n/a
2025-08-05 2025-06-30 13F PLANET FITNESS PUT Put 34,100 -11.43 4 0.00 n/a n/a n/a
2025-05-12 2025-03-31 13F PLANET FITNESS PUT Put 38,500 -66.70 4 -72.73 n/a n/a n/a
2025-02-11 2024-12-31 13F PLANET FITNESS PUT Put 115,600 32.72 11 57.14 n/a n/a n/a
2024-11-08 2024-09-30 13F PLANET FITNESS PUT Put 87,100 -58.17 7 -53.33 n/a n/a n/a
2024-07-25 2024-06-30 13F PLANET FITNESS PUT Put 208,200 -25.48 15 -11.76 n/a n/a n/a
2024-04-25 2024-03-31 13F PLANET FITNESS PUT Put 279,400 166.35 17 142.86 n/a n/a n/a
2024-02-02 2023-12-31 13F PLANET FITNESS PUT Put 104,900 68.65 8 133.33 n/a n/a n/a
2023-11-01 2023-09-30 13F PLANET FITNESS PUT Put 62,200 -22.15 3 -40.00 n/a n/a n/a
2023-08-04 2023-06-30 13F PLANET FITNESS PUT Put 79,900 -31.83 5 -44.44 n/a n/a n/a
2023-04-27 2023-03-31 13F PLANET FITNESS PUT Put 117,200 0.69 9 0.00 n/a n/a n/a
2023-02-02 2022-12-31 13F PLANET FITNESS PUT Put 116,400 -0.34 9 -99.87 n/a n/a n/a
2022-11-04 2022-09-30 13F PLANET FITNESS PUT Put 116,800 -14.18 6,734 -27.25 n/a n/a n/a
2022-08-03 2022-06-30 13F PLANET FITNESS PUT Put 136,100 54.66 9,256 24.51 n/a n/a n/a
2022-05-02 2022-03-31 13F PLANET FITNESS PUT Put 88,000 269.75 7,434 244.97 n/a n/a n/a
2022-02-23 2021-12-31 13F/A PLANET FITNESS PUT Put 23,800 -69.01 2,155 -62.79 n/a n/a n/a
2022-02-04 2021-12-31 13F PLANET FITNESS PUT Put 76,800 5,792 n/a n/a n/a
2021-10-28 2021-09-30 13F PLANET FITNESS PUT Put 76,800 0.39 5,792 0.63 n/a n/a n/a
2021-08-12 2021-06-30 13F PLANET FITNESS PUT Put 76,500 8,996.31 5,756 -11.45 n/a n/a n/a
2021-04-26 2021-03-31 13F PLANET FITNESS PUT Put 841 66.53 6,500 65.82 n/a n/a n/a
2021-02-02 2020-12-31 13F PLANET FITNESS PUT Put 505 -63.72 3,920 -54.30 n/a n/a n/a
2020-10-14 2020-09-30 13F PLANET FITNESS PUT Put 1,392 9.52 8,577 11.42 n/a n/a n/a
2020-07-13 2020-06-30 13F PLANET FITNESS PUT Put 1,271 41.38 7,698 75.83 n/a n/a n/a
2020-04-29 2020-03-31 13F PLANET FITNESS PUT Put 899 170.78 4,378 76.60 n/a n/a n/a
2020-02-05 2019-12-31 13F PLANET FITNESS PUT Put 332 43.72 2,479 85.55 n/a n/a n/a
2019-10-15 2019-09-30 13F PLANET FITNESS PUT Put 231 -63.62 1,336 -70.95 n/a n/a n/a
2019-07-26 2019-06-30 13F PLANET FITNESS PUT Put 635 1.28 4,599 6.75 n/a n/a n/a
2019-04-18 2019-03-31 13F PLANET FITNESS PUT Put 627 435.90 4,308 587.08 n/a n/a n/a
2019-01-16 2018-12-31 13F PLANET FITNESS PUT Put 117 -70.68 627 -70.90 n/a n/a n/a
2018-10-23 2018-09-30 13F PLANET FITNESS PUT Put 399 5,600.00 2,155 7,083.33 n/a n/a n/a
2018-07-30 2018-06-30 13F PLANET FITNESS PUT Put 7 -96.20 30 50.00 n/a n/a n/a
2018-04-26 2018-03-31 13F PLANET FITNESS PUT Put 184 -55.45 20 400.00 n/a n/a n/a
2018-01-10 2017-12-31 13F PLANET FITNESS PUT Put 413 8,160.00 4 -80.00 n/a n/a n/a
2017-10-25 2017-09-30 13F PLANET FITNESS PUT Put 5 150.00 0 -100.00 n/a n/a n/a
2017-07-12 2017-06-30 13F PLANET FITNESS PUT Put 2 -86.67 0 -100.00 n/a n/a n/a
2017-04-21 2017-03-31 13F PLANET FITNESS PUT Put 15 400.00 1 n/a n/a n/a
2017-01-11 2016-12-31 13F PLANET FITNESS PUT Put 3 -70.00 0 n/a n/a n/a
2016-10-07 2016-09-30 13F PLANET FITNESS PUT Put 10 -58.33 0 -100.00 n/a n/a n/a
2016-07-18 2016-06-30 13F PLANET FITNESS PUT Put 24 140.00 1 0.00 n/a n/a n/a
2016-04-14 2016-03-31 13F PLANET FITNESS PUT Put 10 900.00 1 0.00 n/a n/a n/a
2016-01-20 2015-12-31 13F PLANET FITNESS PUT Put 1 0 n/a n/a n/a
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.