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Quadrature Capital’s Inspire Medical Systems INSP Stock Holding History

Quadrature Capital’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
Q1 		– Sell
-2,830
Closed -$261K – 1616
2025
Q4 		$261K Buy
+2,830
New +$271K ﹤0.01% 890
2025
Q3 		– Sell
-8,462
Closed -$1.1M – 1257
2025
Q2 		$1.1M Buy
8,462
+3,582
+73% +$519K 0.02% 394
2025
Q1 		$778K Sell
4,880
-4,238
-46% -$767K 0.02% 485
2024
Q4 		$1.69M Buy
9,118
+3,868
+74% +$751K 0.03% 334
2024
Q3 		$1.11M Sell
5,250
-8,007
-60% -$1.39M 0.03% 331
2024
Q2 		$1.78M Buy
+13,257
New +$2.51M 0.03% 335
2023
Q4 		– Sell
-125,202
Closed -$24.8M – 1252
2023
Q3 		$24.8M Buy
125,202
+62,516
+100% +$15.8M 0.51% 48
2023
Q2 		$20.3M Sell
62,686
-13,956
-18% -$3.99M 0.45% 58
2023
Q1 		$17.9M Buy
76,642
+66,015
+621% +$16.7M 0.49% 56
2022
Q4 		$2.68M Buy
+10,627
New +$2.27M 0.08% 210
2021
Q1 		– Sell
-10,721
Closed -$2.02M – 1007
2020
Q4 		$2.02M Buy
+10,721
New +$1.75M 0.1% 175
2020
Q1 		– Sell
-7,367
Closed -$546K – 593
2019
Q4 		$546K Buy
+7,367
New +$474K 0.02% 337

Other funds holding INSP

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
DM
Deerfield Management New York $9.59B AUM 113.36% 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
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return

Quadrature Capital's INSP Position: Q1 2026 in Review

Quadrature Capital sold out of Inspire Medical Systems (INSP) in Q1 2026, closing a stake of 2,830 shares — an estimated $261K sold.

Quadrature Capital first reported a position in INSP in Q4 2019 and held it in 12 quarters. The position peaked at $24.8M in Q3 2023. 301 funds tracked by Wall St. Rank hold INSP as of Q1 2026.

  • Quadrature Capital reported no remaining Inspire Medical Systems position as of Q1 2026 after selling out during the quarter.
  • Quadrature Capital sold 2,830 Inspire Medical Systems shares in Q1 2026, an estimated $261K.
  • Quadrature Capital first reported a position in Inspire Medical Systems in Q4 2019 and held it in 12 quarters.
  • Quadrature Capital's Inspire Medical Systems position peaked at $24.8M in Q3 2023.
  • 301 funds tracked by Wall St. Rank held Inspire Medical Systems as of Q1 2026.

Based on Quadrature Capital's 13F filing for Q1 2026, filed 15 May 2026.