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Ken Griffin's Planet Fitness, Inc. (PLNT) position

Yes: as of Q1 2026, Ken Griffin holds 287K shares of PLNT worth $21M (0.0% of the disclosed portfolio). Held since at least Q1 2021; that opening coverage snapshot is not counted as a purchase.
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Current value
$21M
Shares held
287K
% of portfolio
0.0%
Est. average buy price (i)
$102.28
Quarter-end price
$74.38

Estimated trade prices

Average price in quarters with purchases
$80.25
Average prices in quarters with sales
  • Q1 2026: $87.93 (1.4M shares sold)
  • Q1 2025: $100.65 (805K shares sold)
  • Q3 2024: $78.33 (1.8M shares sold)
  • Q4 2022: $69.78 (631K shares sold)
  • Q2 2022: $73.89 (11K shares sold)
  • Q1 2022: $86.82 (2K shares sold)

PLNT price vs Griffin's position

1Y 3Y 5Y MAX
Dates
$40$100$15020222023202420252026Added 26K shares (53.0%) · Q3 2021. Average closing price $76.00 · Price range $68.99–$82.1326KsharespurchasedAdded 28K shares (38.0%) · Q4 2021. Average closing price $85.31 · Price range $77.10–$95.9128KsharespurchasedSold 2K shares (2.3%) · Q1 2022. Average closing price $86.82 · Price range $73.94–$95.822KsharessoldSold 11K shares (10.7%) · Q2 2022. Average closing price $73.89 · Price range $61.47–$86.8311KsharessoldAdded 973K shares (over 1,000%) · Q3 2022. Average closing price $72.03 · Price range $55.88–$81.22973KsharespurchasedSold 631K shares (59.3%) · Q4 2022. Average closing price $69.78 · Price range $57.52–$79.47631KsharessoldAdded 475K shares (109.8%) · Q1 2023. Average closing price $79.87 · Price range $74.00–$84.65475KsharespurchasedNew position of 370K shares · Q3 2023. Average closing price $60.50 · Price range $44.41–$69.35370KsharespurchasedAdded 1.5M shares (405.1%) · Q4 2023. Average closing price $61.48 · Price range $46.98–$73.751.5MsharespurchasedAdded 53K shares (2.8%) · Q1 2024. Average closing price $66.87 · Price range $56.46–$74.9253KsharespurchasedAdded 109K shares (5.7%) · Q2 2024. Average closing price $64.88 · Price range $58.65–$74.22109KsharespurchasedSold 1.8M shares (91.0%) · Q3 2024. Average closing price $78.33 · Price range $72.01–$84.341.8MsharessoldAdded 919K shares (503.2%) · Q4 2024. Average closing price $91.27 · Price range $78.50–$102.01919KsharespurchasedSold 805K shares (73.0%) · Q1 2025. Average closing price $100.65 · Price range $90.12–$109.07805KsharessoldAdded 39K shares (13.2%) · Q2 2025. Average closing price $100.14 · Price range $90.58–$109.0539KsharespurchasedAdded 1.2M shares (345.6%) · Q3 2025. Average closing price $106.30 · Price range $98.64–$113.551.2MsharespurchasedAdded 209K shares (14.0%) · Q4 2025. Average closing price $102.94 · Price range $89.98–$111.97209KsharespurchasedSold 1.4M shares (83.2%) · Q1 2026. Average closing price $87.93 · Price range $73.62–$109.731.4Msharessold← Earlier —1 purchase
Average closing price · filing quarter
$87.93
Price range · filing quarter
$73.62 – $109.73
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Reduced −1.4M −$125M −83.2% 287K May 15, 2026
Q4 2025 Added +209K +$22M +14.0% 1.7M Feb 17, 2026
Q3 2025 Added +1.2M +$124M +345.6% 1.5M Nov 14, 2025
Q2 2025 Added +39K +$3.9M +13.2% 336K Aug 14, 2025
Q1 2025 Reduced −805K −$81M −73.0% 297K May 15, 2025
Q4 2024 Added +919K +$84M +503.2% 1.1M Feb 14, 2025
Q3 2024 Reduced −1.8M −$145M −91.0% 183K Nov 14, 2024
Q2 2024 Added +109K +$7.1M +5.7% 2.0M Aug 14, 2024
Q1 2024 Added +53K +$3.5M +2.8% 1.9M May 15, 2024
Q4 2023 Added +1.5M +$92M +405.1% 1.9M Feb 14, 2024
Q3 2023 New +370K +$22M – 370K Nov 14, 2023
Q1 2023 Added +475K +$38M +109.8% 908K May 15, 2023
Q4 2022 Reduced −631K −$44M −59.3% 433K Feb 14, 2023
Q3 2022 Added +973K +$70M +1,081.4% 1.1M Nov 14, 2022
Q2 2022 Reduced −11K −$800K −10.7% 90K Aug 15, 2022
Q1 2022 Reduced −2K −$204K −2.3% 101K May 16, 2022
Q4 2021 Added +28K +$2.4M +38.0% 103K Feb 14, 2022
Q3 2021 Added +26K +$2.0M +53.0% 75K Nov 15, 2021
Q2 2021 Added +3K +$229K +6.3% 49K Aug 16, 2021
Q1 2021 First covered – – – 46K May 21, 2021
Data through Q1 2026 · filed May 15, 2026
20 grouped rows from 20 quarters

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Common questions

Does Ken Griffin own PLNT?

Yes. As of Q1 2026, Ken Griffin disclosed 287K shares of PLNT, worth $21M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy PLNT?

Ken Griffin held PLNT since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell PLNT?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in PLNT. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of PLNT does Ken Griffin own?

Ken Griffin disclosed 287K shares of PLNT as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for PLNT?

Ken Griffin's estimated average buy price for PLNT is $102.28, from quarter-average prices weighted by the shares added each quarter. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.