CM
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Castleark Management’s Inspire Medical Systems INSP Stock Holding History

Castleark Management’s Portfolio INSP Stock Details INSP Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2023
Q3 		– Sell
-32,190
Closed -$10.5M – 298
2023
Q2 		$10.5M Sell
32,190
-7,260
-18% -$2.07M 0.47% 41
2023
Q1 		$9.23M Hold
39,450
– – 0.45% 41
2022
Q4 		$9.94M Buy
39,450
+6,330
+19% +$1.35M 0.52% 44
2022
Q3 		$5.87M Sell
33,120
-750
-2% -$151K 0.33% 68
2022
Q2 		$6.19M Buy
33,870
+4,430
+15% +$883K 0.33% 63
2022
Q1 		$7.56M Buy
+29,440
New +$6.73M 0.33% 71
2021
Q1 		– Sell
-9,238
Closed -$1.74M – 350
2020
Q4 		$1.74M Sell
9,238
-49,008
-84% -$8.01M 0.07% 203
2020
Q3 		$7.52M Sell
58,246
-35,032
-38% -$3.86M 0.29% 102
2020
Q2 		$8.12M Sell
93,278
-18,910
-17% -$1.45M 0.35% 75
2020
Q1 		$6.76M Sell
112,188
-18,710
-14% -$1.38M 0.4% 69
2019
Q4 		$9.71M Sell
130,898
-51,653
-28% -$3.32M 0.39% 78
2019
Q3 		$11.1M Buy
182,551
+200
+0.1% +$13.2K 0.45% 66
2019
Q2 		$11.1M Buy
182,351
+62,268
+52% +$3.36M 0.42% 76
2019
Q1 		$6.82M Sell
120,083
-2,172
-2% -$117K 0.26% 127
2018
Q4 		$5.17M Buy
+122,255
New +$5.2M 0.22% 140

Other funds holding INSP

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return
Macquarie Group
Macquarie Group Sydney, NSW 2000, Australia $16.8B AUM 27.39% 1-Year Est. Return

Castleark Management's INSP Position: Q3 2023 in Review

Castleark Management sold out of Inspire Medical Systems (INSP) in Q3 2023, closing a stake of 32,190 shares — an estimated $10.5M sold.

Castleark Management first reported a position in INSP in Q4 2018 and held it in 15 quarters. The position peaked at $11.1M in Q3 2019. 364 funds tracked by Wall St. Rank hold INSP as of Q3 2023.

  • Castleark Management reported no remaining Inspire Medical Systems position as of Q3 2023 after selling out during the quarter.
  • Castleark Management sold 32,190 Inspire Medical Systems shares in Q3 2023, an estimated $10.5M.
  • Castleark Management first reported a position in Inspire Medical Systems in Q4 2018 and held it in 15 quarters.
  • Castleark Management's Inspire Medical Systems position peaked at $11.1M in Q3 2019.
  • 364 funds tracked by Wall St. Rank held Inspire Medical Systems as of Q3 2023.

Based on Castleark Management's 13F filing for Q3 2023, filed 15 Nov 2023.