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Kornitzer Capital Management’s Inspire Medical Systems INSP Stock Holding History

Kornitzer Capital 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
2025
Q4 		– Sell
-5,800
Closed -$430K – 520
2025
Q3 		$430K Sell
5,800
-44,440
-88% -$4.5M 0.01% 470
2025
Q2 		$6.52M Hold
50,240
– – 0.13% 193
2025
Q1 		$8M Hold
50,240
– – 0.17% 160
2024
Q4 		$9.31M Hold
50,240
– – 0.18% 159
2024
Q3 		$10.6M Buy
50,240
+1,350
+3% +$235K 0.2% 152
2024
Q2 		$6.54M Sell
48,890
-22,010
-31% -$4.17M 0.12% 223
2024
Q1 		$15.2M Sell
70,900
-1,250
-2% -$245K 0.28% 106
2023
Q4 		$14.7M Hold
72,150
– – 0.29% 99
2023
Q3 		$14.3M Sell
72,150
-3,925
-5% -$990K 0.3% 94
2023
Q2 		$24.7M Buy
76,075
+25,915
+52% +$7.4M 0.49% 43
2023
Q1 		$11.7M Hold
50,160
– – 0.23% 139
2022
Q4 		$12.6M Buy
50,160
+13,000
+35% +$2.77M 0.26% 116
2022
Q3 		$6.59M Hold
37,160
– – 0.14% 215
2022
Q2 		$6.79M Buy
37,160
+31,960
+615% +$6.37M 0.14% 225
2022
Q1 		$1.33M Hold
5,200
– – 0.02% 392
2021
Q4 		$1.2M Sell
5,200
-1,585
-23% -$387K 0.02% 426
2021
Q3 		$1.58M Hold
6,785
– – 0.02% 401
2021
Q2 		$1.31M Hold
6,785
– – 0.02% 419
2021
Q1 		$1.4M Hold
6,785
– – 0.02% 400
2020
Q4 		$1.28M Sell
6,785
-2,000
-23% -$327K 0.02% 401
2020
Q3 		$1.13M Sell
8,785
-6,400
-42% -$705K 0.02% 387
2020
Q2 		$1.32M Sell
15,185
-2,800
-16% -$215K 0.03% 370
2020
Q1 		$1.08M Sell
17,985
-143,460
-89% -$10.6M 0.03% 371
2019
Q4 		$12M Buy
161,445
+16,660
+12% +$1.07M 0.21% 148
2019
Q3 		$8.84M Sell
144,785
-20,685
-13% -$1.36M 0.16% 183
2019
Q2 		$10M Sell
165,470
-820
-0.5% -$44.2K 0.18% 167
2019
Q1 		$9.44M Buy
166,290
+40,190
+32% +$2.17M 0.17% 171
2018
Q4 		$5.33M Buy
+126,100
New +$5.36M 0.11% 227

Other funds holding INSP

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
DM
Deerfield Management New York $8.48B AUM 99.04% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return

Kornitzer Capital Management's INSP Position: Q4 2025 in Review

Kornitzer Capital Management sold out of Inspire Medical Systems (INSP) in Q4 2025, closing a stake of 5,800 shares — an estimated $430K sold.

Kornitzer Capital Management first reported a position in INSP in Q4 2018 and held it in 28 quarters. The position peaked at $24.7M in Q2 2023. 342 funds tracked by Wall St. Rank hold INSP as of Q4 2025.

  • Kornitzer Capital Management reported no remaining Inspire Medical Systems position as of Q4 2025 after selling out during the quarter.
  • Kornitzer Capital Management sold 5,800 Inspire Medical Systems shares in Q4 2025, an estimated $430K.
  • Kornitzer Capital Management first reported a position in Inspire Medical Systems in Q4 2018 and held it in 28 quarters.
  • Kornitzer Capital Management's Inspire Medical Systems position peaked at $24.7M in Q2 2023.
  • 342 funds tracked by Wall St. Rank held Inspire Medical Systems as of Q4 2025.

Based on Kornitzer Capital Management's 13F filing for Q4 2025, filed 2 Feb 2026.