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Castleark Management’s Planet Fitness PLNT Stock Holding History

Castleark Management’s Portfolio PLNT Stock Details PLNT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-80,305
Closed -$8.71M – 332
2025
Q4 		$8.71M Sell
80,305
-2,210
-3% -$227K 0.26% 83
2025
Q3 		$8.57M Buy
82,515
+2,785
+3% +$296K 0.24% 80
2025
Q2 		$8.69M Sell
79,730
-2,360
-3% -$236K 0.26% 54
2025
Q1 		$7.93M Buy
+82,090
New +$8.26M 0.27% 58
2023
Q2 		– Sell
-92,850
Closed -$7.21M – 304
2023
Q1 		$7.21M Sell
92,850
-27,460
-23% -$2.19M 0.35% 52
2022
Q4 		$9.48M Buy
120,310
+1,760
+1% +$123K 0.5% 45
2022
Q3 		$6.84M Sell
118,550
-2,860
-2% -$206K 0.38% 55
2022
Q2 		$8.26M Sell
121,410
-5,125
-4% -$379K 0.44% 42
2022
Q1 		$10.7M Buy
126,535
+20,160
+19% +$1.75M 0.46% 38
2021
Q4 		$9.63M Buy
+106,375
New +$9.08M 0.35% 74
2021
Q1 		– Sell
-46,535
Closed -$3.61M – 362
2020
Q4 		$3.61M Sell
46,535
-17,670
-28% -$1.24M 0.14% 151
2020
Q3 		$3.96M Sell
64,205
-45,975
-42% -$2.64M 0.16% 137
2020
Q2 		$6.67M Buy
110,180
+106,210
+2,675% +$6.38M 0.29% 102
2020
Q1 		$193K Buy
+3,970
New +$277K 0.01% 279
2019
Q4 		– Sell
-158,836
Closed -$9.19M – 385
2019
Q3 		$9.19M Sell
158,836
-15,130
-9% -$1.07M 0.38% 96
2019
Q2 		$12.6M Sell
173,966
-2,530
-1% -$191K 0.48% 55
2019
Q1 		$12.1M Buy
176,496
+821
+0.5% +$49.7K 0.46% 56
2018
Q4 		$9.42M Sell
175,675
-73,016
-29% -$3.74M 0.4% 74
2018
Q3 		$13.4M Sell
248,691
-26,954
-10% -$1.34M 0.39% 88
2018
Q2 		$12.1M Sell
275,645
-150,984
-35% -$6.19M 0.37% 86
2018
Q1 		$16.1M Sell
426,629
-21,811
-5% -$764K 0.51% 52
2017
Q4 		$15.5M Buy
448,440
+150,225
+50% +$4.44M 0.47% 63
2017
Q3 		$8.05M Buy
+298,215
New +$7.25M 0.25% 140

Other funds holding PLNT

T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
SIM
SRS Investment Management New York $10.8B AUM 34.05% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Ninety One (UK)
Ninety One (UK) London, United Kingdom $44.7B AUM 17.24% 1-Year Est. Return
DCM
Dorsal Capital Management Redwood City, California $2.82B AUM 7.73% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Castleark Management's PLNT Position: Q1 2026 in Review

Castleark Management sold out of Planet Fitness (PLNT) in Q1 2026, closing a stake of 80,305 shares — an estimated $8.71M sold.

Castleark Management first reported a position in PLNT in Q3 2017 and held it in 23 quarters. The position peaked at $16.1M in Q1 2018. 426 funds tracked by Wall St. Rank hold PLNT as of Q1 2026.

  • Castleark Management reported no remaining Planet Fitness position as of Q1 2026 after selling out during the quarter.
  • Castleark Management sold 80,305 Planet Fitness shares in Q1 2026, an estimated $8.71M.
  • Castleark Management first reported a position in Planet Fitness in Q3 2017 and held it in 23 quarters.
  • Castleark Management's Planet Fitness position peaked at $16.1M in Q1 2018.
  • 426 funds tracked by Wall St. Rank held Planet Fitness as of Q1 2026.

Based on Castleark Management's 13F filing for Q1 2026, filed 15 May 2026.