Planet Fitness, Inc.
US ˙ NYSE ˙ US72703H1014

SecurityPLNT / Planet Fitness, Inc.
InstitutionBoothbay Fund Management, Llc
Latest Disclosed Ownership22,492 shares
Latest Disclosed Value $ 1,672,955
Boothbay Fund Management, Llc ownership in PLNT / Planet Fitness, Inc.

On May 15, 2026 - Boothbay Fund Management, Llc filed a 13F-HR form disclosing ownership of 22,492 shares of Planet Fitness, Inc. (US:PLNT) valued at $1,672,955 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 4,721 shares of Planet Fitness, Inc.. This represents a change in shares of 376.42% during the quarter. The current value of the position is $1,139,895 USD.

Boothbay Fund Management, Llc has a history of taking positions in derivatives of the underlying security (PLNT) in the form of stock options.

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)
2026-05-15 2026-03-31 13F PLANET FITNESS MASTER ISSUER CL A 72703H101 22,492 17,771 376.42 1,673 226.56 0.0217
2026-02-17 2025-12-31 13F PLANET FITNESS CL A 72703H101 4,721 4,721 512 0.0076
2025-11-14 2025-09-30 13F PLANET FITNESS CL A 72703H101 0 -4,029 -100.00 0 -100.00
2025-08-14 2025-06-30 13F PLANET FITNESS CL A 72703H101 4,029 -2,274 -36.08 439 -27.80 0.0085
2025-05-15 2025-03-31 13F PLANET FITNESS CL A 72703H101 6,303 459 7.85 609 5.37 0.0160
2025-02-14 2024-12-31 13F PLANET FITNESS CL A 72703H101 5,844 -1,782 -23.37 578 -6.79 0.0142
2024-11-14 2024-09-30 13F PLANET FITNESS CL A 72703H101 7,626 7,626 619 0.0141
2024-08-14 2024-06-30 13F PLANET FITNESS CL A 72703H101 0 -7,846 -100.00 0 -100.00
2024-05-15 2024-03-31 13F PLANET FITNESS CL A 72703H101 7,846 7,846 491 0.0095
2024-02-14 2023-12-31 13F PLANET FITNESS CL A 72703H101 0 -29,660 -100.00 0 -100.00
2023-11-14 2023-09-30 13F PLANET FITNESS CL A 72703H101 29,660 1,374 4.86 1,459 -23.54 0.0347
2023-08-14 2023-06-30 13F PLANET FITNESS CL A 72703H101 28,286 24,480 643.19 1,908 546.44 0.0418
2023-05-15 2023-03-31 13F PLANET FITNESS CL A 72703H101 3,806 3,806 296 0.0061
2022-08-15 2022-06-30 13F PLANET FITNESS CL A 72703H101 0 -3,175 -100.00 0 -100.00
2022-05-16 2022-03-31 13F PLANET FITNESS CL A 72703H101 3,175 3,175 268 0.0062
2020-11-16 2020-09-30 13F PLANET FITNESS CL A 72703H101 0 -4,255 -100.00 0 -100.00
2020-08-14 2020-06-30 13F PLANET FITNESS CL A 72703H101 4,255 4,255 258 0.0176
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
(%)
2021-08-17 2021-06-30 13F/A PLANET FITNESS PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-17 2021-03-31 13F PLANET FITNESS PUT Put 53 410 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.