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Inspire Medical Systems (INSP) Institutional Ownership

Inspire Medical Systems logo
$61.07 -0.62 (-1.01%)
Closing price 08/20/2026 03:58 PM Eastern
Extended Trading
$61.25 +0.18 (+0.29%)
As of 08:28 AM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Inspire Medical Systems (NYSE:INSP)

Current
Institutional Ownership
Percentage
94.91%
Number of
Institutional Buyers
(last 12 months)
202
Total
Institutional Inflows
(last 12 months)
$1.74B
Number of
Institutional Sellers
(last 12 months)
116
Total
Institutional Outflows
(last 12 months)
$678.29M
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INSP Institutional Buying and Selling by Quarter

Inspire Medical Systems Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/19/2026 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC546,020$24.36M0.0%+21.7%1.889%
8/19/2026 Van ECK Associates Corp5,267$235K0.0%+24.2%0.018%
8/19/2026 Hsbc Holdings PLC6,241$274K0.0%-68.4%0.022%
8/19/2026 Wellington Management Group LLP2,382,660$106.29M0.0%-6.0%8.242%
8/19/2026 Nantahala Capital Management LLC269,474$12.02B0.4%N/A0.932%
8/18/2026 Palo Alto Investors LP8,772$391.32M0.1%N/A0.030%
8/18/2026 Empowered Funds LLC50,657$2.26M0.0%N/A0.175%
8/17/2026 Corient Private Wealth LP57,530$2.57M0.0%N/A0.199%
8/17/2026 Bank of America Corp DE248,802$11.10M0.0%N/A0.861%
8/15/2026 Freestone Grove Partners LP7,811$348K0.0%N/A0.027%
8/15/2026 Odyssean LLC26,282$1.17M0.2%N/A0.091%
8/15/2026 Jupiter Topco LLC13,451$601K0.0%N/A0.047%
8/14/2026 ADAR1 Capital Management LLC374,617$16.71M0.8%N/A1.296%
8/14/2026 Hsbc Holdings PLC6,241$274K0.0%N/A0.022%
8/14/2026 Canada Pension Plan Investment Board165,100$7.37M0.0%N/A0.571%
8/14/2026 Legal & General Group Plc61,236$2.73M0.0%N/A0.212%
8/14/2026 The Manufacturers Life Insurance Company 20,525$916K0.0%N/A0.071%
8/14/2026 Algert Global LLC60,517$2.70M0.0%+14.5%0.209%
8/13/2026 Sanctuary Advisors LLC4,779$213K0.0%N/A0.017%
8/13/2026 Bank of Nova Scotia144,964$6.47M0.0%N/A0.501%
8/12/2026 Quantbot Technologies LP25,954$1.16M0.0%N/A0.090%
8/11/2026 Allworth Financial LP1,980$88K0.0%N/A0.007%
8/7/2026 BlackRock Inc.4,737,519$211.34M0.0%N/A16.387%
8/7/2026 Deutsche Bank AG176,200$7.86M0.0%N/A0.609%
8/7/2026 Mitsubishi UFJ Asset Management Co. Ltd.11,875$530K0.0%N/A0.041%
8/6/2026 Alberta Investment Management Corp122,900$5.48M0.0%N/A0.427%
8/6/2026 Bank of New York Mellon Corp148,627$6.63M0.0%N/A0.516%
8/6/2026 GSA Capital Partners LLP18,382$820K0.1%N/A0.064%
7/10/2026 Handelsbanken Fonder AB14,200$633K0.0%+44.9%0.049%
7/9/2026 Tactive Advisors LLC6,430$287K0.1%N/A0.022%
7/8/2026 Assenagon Asset Management S.A.864,395$38.56M0.0%+66.2%3.000%
7/7/2026 GAMMA Investing LLC1,221$54K0.0%+85.0%0.004%
7/2/2026 Versant Capital Management Inc958$43K0.0%+379.0%0.003%
5/26/2026 Glenmede Trust Co. NA81,495$4.20M0.0%-0.6%0.283%
5/19/2026 Bank of America Corp DE186,069$9.60M0.0%-11.4%0.646%
5/19/2026 Edgestream Partners L.P.82,268$4.24M0.1%+358.2%0.286%
5/19/2026Janus Henderson Group PLC13,451$694K0.0%-97.6%0.047%
5/18/2026 ADAR1 Capital Management LLC405,197$20.90M1.2%+2,601.3%1.406%
5/18/2026 Amundi256,830$13.25M0.0%-29.6%0.891%
5/18/2026 EverSource Wealth Advisors LLC632$33K0.0%+1,115.4%0.002%
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5/18/2026California State Teachers Retirement System34,473$1.78M0.0%+31.6%0.120%
5/18/2026 Royal Bank of Canada252,971$13.05M0.0%+2,203.1%0.878%
5/18/2026 Regal Partners Ltd135,767$7.00M0.4%-35.7%0.471%
5/18/2026 Rock Springs Capital Management LP131,800$6.80M0.4%+0.6%0.457%
5/18/2026 Empowered Funds LLC34,876$1.80M0.0%N/A0.121%
5/16/2026 The Manufacturers Life Insurance Company21,005$1.08M0.0%-4.3%0.073%
5/16/2026 Quantinno Capital Management LP26,555$1.37M0.0%+103.5%0.092%
5/16/2026 Lazard Asset Management LLC18,938$977K0.0%-57.9%0.066%
5/15/2026 OMERS ADMINISTRATION Corp16,153$833K0.0%+11.0%0.056%
5/14/2026 Renaissance Technologies LLC469,968$24.24M0.0%+14.4%1.631%
5/14/2026 Bank of Nova Scotia60,000$3.10M0.0%+49.8%0.208%
5/14/2026 Sei Investments Co.42,100$2.17M0.0%-17.4%0.146%
5/14/2026 State of Wyoming1,343$69K0.0%+83.7%0.005%
5/13/2026 First Trust Advisors LP71,661$3.70M0.0%+2,232.7%0.249%
5/8/2026 PNC Financial Services Group Inc.1,009$52K0.0%-50.4%0.004%
5/7/2026 Dimensional Fund Advisors LP234,670$12.10M0.0%-31.3%0.815%
5/6/2026 Bessemer Group Inc.1,615$83K0.0%-71.7%0.006%
5/6/2026 Allspring Global Investments Holdings LLC3,747$201K0.0%-8.3%0.013%
5/5/2026 Bank of New York Mellon Corp148,764$7.67M0.0%-31.1%0.517%
5/4/2026 Principal Financial Group Inc.126,788$6.54M0.0%+1.0%0.440%
5/4/2026 Teachers Retirement System of The State of Kentucky6,651$343K0.0%-78.6%0.023%
5/1/2026 Fifth Third Bancorp6,441$332K0.0%+1,794.4%0.022%
4/30/2026 Hsbc Holdings PLC19,730$997K0.0%-54.5%0.069%
4/27/2026 New York State Teachers Retirement System23,599$1.22M0.0%+9.3%0.082%
4/27/2026 Y Intercept Hong Kong Ltd158,274$8.16M0.2%+124.1%0.550%
4/27/2026 Leonteq Securities AG22,812$1.18M0.0%+187.3%0.079%
4/27/2026 Elevation Point Wealth Partners LLC8,496$438K0.0%N/A0.030%
4/23/2026 Apollon Wealth Management LLC3,997$206K0.0%+5.6%0.014%
4/22/2026 Janney Montgomery Scott LLC9,081$468K0.0%+107.5%0.032%
4/22/2026 Pictet Asset Management Holding SA5,018$259K0.0%+12.1%0.017%
4/21/2026 Wasatch Advisors LP138,603$7.15M0.0%+19.4%0.481%
4/21/2026 Louisiana State Employees Retirement System11,500$593K0.0%N/A0.040%
4/20/2026 OP Asset Management Ltd8,084$417K0.0%N/A0.028%
4/20/2026 Assenagon Asset Management S.A.520,174$26.83M0.0%+96.3%1.807%
4/18/2026 Riverbridge Partners LLC92,494$4.77M0.1%-4.8%0.321%
4/16/2026 SG Americas Securities LLC105,147$5.42M0.0%+173.5%0.365%
4/16/2026 Diversified Trust Co11,867$612K0.0%+40.7%0.041%
3/20/2026 Hsbc Holdings PLC43,328$4.00M0.0%-0.5%0.152%
3/17/2026 Rockefeller Capital Management L.P.5,712$527K0.0%+14.9%0.020%
3/9/2026 Corient Private Wealth LLC3,841$354K0.0%N/A0.013%
3/6/2026 Hsbc Holdings PLC43,328$4.00M0.0%-0.5%0.152%
3/3/2026 Caitong International Asset Management Co. Ltd4,233$390K0.1%+291.9%0.015%
2/23/2026 Virtu Financial LLC5,712$527K0.0%+40.2%0.020%
2/19/2026 Invesco Ltd.261,374$24.11M0.0%+181.7%0.914%
2/19/2026 Corient Private Wealth LLC3,653$337K0.0%N/A0.013%
2/18/2026 State of Tennessee Department of Treasury16,697$1.54M0.0%-3.5%0.057%
2/18/2026 Regal Partners Ltd211,304$19.49M1.1%+107.7%0.727%
2/18/2026 Fuller & Thaler Asset Management Inc.668,099$61.62M0.2%N/A2.299%
2/18/2026 XTX Topco Ltd45,783$4.22M0.1%+528.1%0.158%
2/18/2026 Voloridge Investment Management LLC188,100$17.35M0.1%+113.0%0.647%
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2/18/2026 Wellington Management Group LLP2,211,091$203.93M0.1%N/A7.610%
2/18/2026 Susquehanna Portfolio Strategies LLC2,500$231K0.0%-96.7%0.009%
2/18/2026 Quadrature Capital Ltd2,830$261K0.0%N/A0.010%
2/18/2026 Moore Capital Management LP25,096$2.32M0.0%N/A0.086%
2/18/2026 Man Group plc41,425$3.82M0.0%-50.6%0.143%
2/18/2026Janus Henderson Group PLC562,331$51.86M0.0%-15.7%1.935%
2/18/2026 Gotham Asset Management LLC48,547$4.48M0.0%+66.9%0.167%
2/18/2026 Engineers Gate Manager LP19,204$1.77M0.0%+552.8%0.066%
2/18/2026 Balyasny Asset Management L.P.187,226$17.27M0.0%-69.5%0.644%
2/18/2026 Bamco Inc. NY337,486$31.13M0.1%+77.6%1.161%


INSP Institutional Ownership - Frequently Asked Questions

During the previous two years, 410 institutional investors and hedge funds held shares of Inspire Medical Systems. The most heavily invested institutionals were Nantahala Capital Management LLC ($12.02B), FMR LLC ($467.07M), Palo Alto Investors LP ($391.32M), Dragoneer Investment Group LLC ($305.53M), Vanguard Group Inc. ($272.37M), BlackRock Inc. ($211.34M), and Morgan Stanley ($116.19M).Learn more on Inspire Medical Systems' institutional investors.

94.91% of Inspire Medical Systems' stock is owned by institutional investors. Learn more on INSP's institutional investor holdings.

Of the 355 institutional investors that purchased Inspire Medical Systems' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($4.74M), Wellington Management Group LLP ($2.21M), Dragoneer Investment Group LLC ($1.93M), Fuller & Thaler Asset Management Inc. ($1.35M), UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($1.08M), M&T Bank Corp ($937.18K), and Deerfield Management Company L.P. ($907.69K).

Institutional investors have bought a total of 24,302,509 shares in the last 24 months. This purchase volume represents approximately $1.74B in transactions.

Of the 116 institutional investors that sold Inspire Medical Systems' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Wasatch Advisors LP ($1.52M), Janus Henderson Group PLC ($653.63K), JPMorgan Chase & Co. ($637.12K), Balyasny Asset Management L.P. ($427.13K), UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC ($370.28K), Congress Asset Management Co. ($360.28K), and Braidwell LP ($342.86K).

Institutional investors have sold a total of 8,851,598 shares in the last 24 months. This volume of shares sold represents approximately $678.29M in transactions.


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Institutional ownership data for NYSE:INSP is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/19/2026. New 13F filings are added each quarter as they're published.
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