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

RA 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
2026
Q2 		– Sell
-325,663
Closed -$16.8M – 88
2026
Q1 		$16.8M Buy
325,663
+183,699
+129% +$12.9M 0.18% 64
2025
Q4 		$13.1M Buy
141,964
+27,063
+24% +$2.59M 0.13% 57
2025
Q3 		$8.53M Buy
+114,901
New +$11.6M 0.11% 54

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

RA Capital Management's INSP Position: Q2 2026 in Review

RA Capital Management sold out of Inspire Medical Systems (INSP) in Q2 2026, closing a stake of 325,663 shares — an estimated $16.8M sold.

RA Capital Management first reported a position in INSP in Q3 2025 and held it in 3 quarters. The position peaked at $16.8M in Q1 2026. 275 funds tracked by Wall St. Rank hold INSP as of Q2 2026.

  • RA Capital Management reported no remaining Inspire Medical Systems position as of Q2 2026 after selling out during the quarter.
  • RA Capital Management sold 325,663 Inspire Medical Systems shares in Q2 2026, an estimated $16.8M.
  • RA Capital Management first reported a position in Inspire Medical Systems in Q3 2025 and held it in 3 quarters.
  • RA Capital Management's Inspire Medical Systems position peaked at $16.8M in Q1 2026.
  • 275 funds tracked by Wall St. Rank held Inspire Medical Systems as of Q2 2026.

Based on RA Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.