Tudor Investment Corp
INSP icon

Tudor Investment Corp’s Inspire Medical Systems INSP Stock Holding History

Tudor Investment Corp’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 		$8.63M Buy
167,218
+54,345
+48% +$3.8M 0.02% 820
2025
Q4 		$10.4M Buy
+112,873
New +$10.8M 0.02% 723
2024
Q4 		– Sell
-10,331
Closed -$2.01M – 3243
2024
Q3 		$2.18M Buy
10,331
+5,461
+112% +$949K 0.01% 1149
2024
Q2 		$652K Buy
+4,870
New +$922K ﹤0.01% 1683
2024
Q1 		– Sell
-71,600
Closed -$14.6M – 2474
2023
Q4 		$14.6M Buy
71,600
+62,907
+724% +$10.2M 0.12% 210
2023
Q3 		$1.73M Sell
8,693
-9,219
-51% -$2.33M 0.02% 1005
2023
Q2 		$5.81M Buy
17,912
+11,990
+202% +$3.43M 0.07% 366
2023
Q1 		$1.39M Buy
+5,922
New +$1.5M 0.02% 994
2022
Q4 		– Sell
-18,236
Closed -$3.89M – 2599
2022
Q3 		$3.23M Buy
18,236
+11,095
+155% +$2.23M 0.07% 356
2022
Q2 		$1.3M Sell
7,141
-12,308
-63% -$2.45M 0.03% 728
2022
Q1 		$4.99M Buy
19,449
+13,565
+231% +$3.1M 0.12% 219
2021
Q4 		$1.35M Sell
5,884
-242
-4% -$59.1K 0.02% 842
2021
Q3 		$1.43M Sell
6,126
-10,118
-62% -$2.11M 0.02% 933
2021
Q2 		$3.14M Buy
16,244
+10,894
+204% +$2.16M 0.06% 388
2021
Q1 		$1.11M Sell
5,350
-12,416
-70% -$2.64M 0.02% 788
2020
Q4 		$3.34M Buy
+17,766
New +$2.9M 0.09% 241
2019
Q2 		– Sell
-3,970
Closed -$225K – 1208
2019
Q1 		$225K Sell
3,970
-4,922
-55% -$266K 0.01% 957
2018
Q4 		$376K Buy
+8,892
New +$378K 0.01% 694

Other funds holding INSP

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
DM
Deerfield Management New York $8.48B AUM 99.04% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
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

Tudor Investment Corp's INSP Position: Q1 2026 in Review

Tudor Investment Corp increased its Inspire Medical Systems (INSP) stake by 48% in Q1 2026, buying an estimated $3.8M and bringing the position to 167,218 shares worth $8.63M. The position accounts for 0.02% of the portfolio, ranked #820.

Tudor Investment Corp first reported a position in INSP in Q4 2018 and has held it in 18 quarters since. The position peaked at $14.6M in Q4 2023. 301 funds tracked by Wall St. Rank hold INSP as of Q1 2026.

  • Tudor Investment Corp held 167,218 shares of Inspire Medical Systems worth $8.63M as of Q1 2026.
  • Tudor Investment Corp bought 54,345 Inspire Medical Systems shares in Q1 2026, an estimated $3.8M.
  • Inspire Medical Systems made up 0.02% of Tudor Investment Corp's portfolio in Q1 2026, its #820 holding.
  • Tudor Investment Corp first reported a position in Inspire Medical Systems in Q4 2018 and has held it in 18 quarters since.
  • Tudor Investment Corp's Inspire Medical Systems position peaked at $14.6M in Q4 2023.
  • 301 funds tracked by Wall St. Rank held Inspire Medical Systems as of Q1 2026.

Based on Tudor Investment Corp's 13F filing for Q1 2026, filed 15 May 2026.