Dimensional Fund Advisors
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Dimensional Fund Advisors’s Inspire Medical Systems INSP Stock Holding History

Dimensional Fund Advisors’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 		$12.1M Sell
234,670
-106,727
-31% -$7.47M ﹤0.01% 2187
2025
Q4 		$31.5M Sell
341,397
-2,321
-0.7% -$222K 0.01% 1754
2025
Q3 		$25.5M Sell
343,718
-1,149
-0.3% -$116K 0.01% 1871
2025
Q2 		$44.8M Buy
344,867
+67,186
+24% +$9.74M 0.01% 1561
2025
Q1 		$44.2M Buy
277,681
+45,348
+20% +$8.2M 0.01% 1536
2024
Q4 		$43.1M Buy
232,333
+115,024
+98% +$22.3M 0.01% 1597
2024
Q3 		$24.8M Buy
117,309
+7,749
+7% +$1.35M 0.01% 1902
2024
Q2 		$14.7M Buy
109,560
+48,590
+80% +$9.2M ﹤0.01% 2101
2024
Q1 		$13.1M Buy
60,970
+38,287
+169% +$7.5M ﹤0.01% 2194
2023
Q4 		$4.61M Sell
22,683
-13,072
-37% -$2.12M ﹤0.01% 2583
2023
Q3 		$7.1M Buy
35,755
+250
+0.7% +$63.1K ﹤0.01% 2406
2023
Q2 		$11.5M Buy
35,505
+5,600
+19% +$1.6M ﹤0.01% 2190
2023
Q1 		$7M Buy
29,905
+7,064
+31% +$1.79M ﹤0.01% 2372
2022
Q4 		$5.75K Buy
22,841
+8,988
+65% +$1.92M ﹤0.01% 2402
2022
Q3 		$2.46M Buy
13,853
+2,080
+18% +$418K ﹤0.01% 2650
2022
Q2 		$2.15M Sell
11,773
-3,091
-21% -$616K ﹤0.01% 2720
2022
Q1 		$3.81M Buy
14,864
+1,754
+13% +$401K ﹤0.01% 2616
2021
Q4 		$3.02M Buy
13,110
+3,502
+36% +$855K ﹤0.01% 2733
2021
Q3 		$2.24M Buy
9,608
+67
+0.7% +$14K ﹤0.01% 2824
2021
Q2 		$1.84M Sell
9,541
-365
-4% -$72.4K ﹤0.01% 2889
2021
Q1 		$2.05M Buy
+9,906
New +$2.11M ﹤0.01% 2848
2020
Q1 		– Sell
-187,059
Closed -$13.9M – 3381
2019
Q4 		$13.9M Sell
187,059
-39,489
-17% -$2.54M 0.01% 2214
2019
Q3 		$13.8M Sell
226,548
-39,894
-15% -$2.63M 0.01% 2198
2019
Q2 		$16.2M Buy
266,442
+5,057
+2% +$273K 0.01% 2174
2019
Q1 		$14.8M Buy
261,385
+205,545
+368% +$11.1M 0.01% 2218
2018
Q4 		$2.36M Buy
+55,840
New +$2.37M ﹤0.01% 2820

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

Dimensional Fund Advisors's INSP Position: Q1 2026 in Review

Dimensional Fund Advisors reduced its Inspire Medical Systems (INSP) stake by 31% in Q1 2026, selling an estimated $7.47M and leaving 234,670 shares worth $12.1M. The position accounts for ﹤0.01% of the portfolio, ranked #2187.

Dimensional Fund Advisors first reported a position in INSP in Q4 2018 and has held it in 26 quarters since. The position peaked at $44.8M in Q2 2025. 301 funds tracked by Wall St. Rank hold INSP as of Q1 2026.

  • Dimensional Fund Advisors held 234,670 shares of Inspire Medical Systems worth $12.1M as of Q1 2026.
  • Dimensional Fund Advisors sold 106,727 Inspire Medical Systems shares in Q1 2026, an estimated $7.47M.
  • Inspire Medical Systems made up ﹤0.01% of Dimensional Fund Advisors's portfolio in Q1 2026, its #2187 holding.
  • Dimensional Fund Advisors first reported a position in Inspire Medical Systems in Q4 2018 and has held it in 26 quarters since.
  • Dimensional Fund Advisors's Inspire Medical Systems position peaked at $44.8M in Q2 2025.
  • 301 funds tracked by Wall St. Rank held Inspire Medical Systems as of Q1 2026.

Based on Dimensional Fund Advisors's 13F filing for Q1 2026, filed 7 May 2026.