Renaissance Technologies
INSP icon

Renaissance Technologies’s Inspire Medical Systems INSP Stock Holding History

Renaissance Technologies’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
2026
Q2 		$19M Sell
426,000
-43,968
-9% -$2.09M 0.03% 719
2026
Q1 		$24.2M Buy
469,968
+59,200
+14% +$4.14M 0.04% 574
2025
Q4 		$37.9M Buy
410,768
+255,768
+165% +$24.5M 0.06% 369
2025
Q3 		$11.5M Buy
155,000
+28,200
+22% +$2.86M 0.02% 1024
2025
Q2 		$16.5M Sell
126,800
-63,900
-34% -$9.27M 0.02% 799
2025
Q1 		$30.4M Buy
190,700
+54,000
+40% +$9.77M 0.05% 490
2024
Q4 		$25.3M Buy
136,700
+36,200
+36% +$7.03M 0.04% 556
2024
Q3 		$21.2M Buy
100,500
+26,900
+37% +$4.67M 0.03% 634
2024
Q2 		$9.85M Sell
73,600
-36,000
-33% -$6.81M 0.02% 934
2024
Q1 		$23.5M Sell
109,600
-4,000
-4% -$784K 0.04% 562
2023
Q4 		$23.1M Sell
113,600
-201,800
-64% -$32.7M 0.04% 558
2023
Q3 		$62.6M Buy
315,400
+58,300
+23% +$14.7M 0.11% 201
2023
Q2 		$83.5M Buy
257,100
+46,100
+22% +$13.2M 0.12% 190
2023
Q1 		$49.4M Buy
211,000
+170,200
+417% +$43M 0.07% 353
2022
Q4 		$10.3M Buy
40,800
+24,300
+147% +$5.18M 0.01% 1067
2022
Q3 		$2.93M Buy
+16,500
New +$3.32M ﹤0.01% 1777
2022
Q2 		– Sell
-37,700
Closed -$9.68M – 4400
2022
Q1 		$9.68M Buy
37,700
+6,600
+21% +$1.51M 0.01% 1147
2021
Q4 		$7.16M Buy
+31,100
New +$7.59M 0.01% 1273
2021
Q3 		– Sell
-43,439
Closed -$8.39M – 3638
2021
Q2 		$8.39M Buy
+43,439
New +$8.62M 0.01% 1305
2021
Q1 		– Sell
-109,700
Closed -$20.6M – 3495
2020
Q4 		$20.6M Buy
109,700
+23,600
+27% +$3.86M 0.02% 740
2020
Q3 		$11.1M Sell
86,100
-77,500
-47% -$8.54M 0.01% 1063
2020
Q2 		$14.2M Sell
163,600
-113,700
-41% -$8.74M 0.01% 1012
2020
Q1 		$16.7M Buy
277,300
+201,000
+263% +$14.9M 0.02% 869
2019
Q4 		$5.66M Sell
76,300
-4,100
-5% -$264K ﹤0.01% 1773
2019
Q3 		$4.91M Sell
80,400
-400
-0.5% -$26.3K ﹤0.01% 1807
2019
Q2 		$4.9M Buy
+80,800
New +$4.36M ﹤0.01% 1829

Other funds holding INSP

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
SCM
Soleus Capital Management Greenwich, Connecticut $2.9B AUM 169.69% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Nomura Holdings
Nomura Holdings Tokyo, Japan $85.4B AUM 91.09% 1-Year Est. Return
DM
Deerfield Management New York $9.59B AUM 113.36% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Renaissance Technologies's INSP Position: Q2 2026 in Review

Renaissance Technologies reduced its Inspire Medical Systems (INSP) stake by 9.4% in Q2 2026, selling an estimated $2.09M and leaving 426,000 shares worth $19M. The position accounts for 0.03% of the portfolio, ranked #719.

Renaissance Technologies first reported a position in INSP in Q2 2019 and has held it in 26 quarters since. The position peaked at $83.5M in Q2 2023. 275 funds tracked by Wall St. Rank hold INSP as of Q2 2026.

  • Renaissance Technologies held 426,000 shares of Inspire Medical Systems worth $19M as of Q2 2026.
  • Renaissance Technologies sold 43,968 Inspire Medical Systems shares in Q2 2026, an estimated $2.09M.
  • Inspire Medical Systems made up 0.03% of Renaissance Technologies's portfolio in Q2 2026, its #719 holding.
  • Renaissance Technologies first reported a position in Inspire Medical Systems in Q2 2019 and has held it in 26 quarters since.
  • Renaissance Technologies's Inspire Medical Systems position peaked at $83.5M in Q2 2023.
  • 275 funds tracked by Wall St. Rank held Inspire Medical Systems as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.