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Inspire Medical Systems, Inc.

INSP
Exchange
NYSE
Industry
Surgical & Medical Instruments & Apparatus
SEC CIK
0001609550

In the last 90 days, Inspire Medical Systems, Inc. insiders filed 0 open-market purchases and 1 sale; 275 institutions reported holding it in 13F filings for Q2 2026, worth $1.65B in total; no superinvestor holds it.

13F holders, Q1 2026

Institutional positions in Inspire Medical Systems, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
301
−34 vs. Q4 2025
Shares held
34.9M
+4.10M (+13.3%) vs. Q4 2025
Total value
$1.80B
−$1.04B (−36.6%) vs. Q4 2025
New holders
59
120 more added
Sold out
93
99 more reduced

8 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting INSP on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 301 institutions
Q1 2021: 251 institutionsQ2 2021: 248 institutionsQ3 2021: 254 institutionsQ4 2021: 289 institutionsQ1 2022: 299 institutionsQ2 2022: 287 institutionsQ3 2022: 301 institutionsQ4 2022: 340 institutionsQ1 2023: 374 institutionsQ2 2023: 407 institutionsQ3 2023: 365 institutionsQ4 2023: 343 institutionsQ1 2024: 327 institutionsQ2 2024: 325 institutionsQ3 2024: 347 institutionsQ4 2024: 357 institutionsQ1 2025: 363 institutionsQ2 2025: 356 institutionsQ3 2025: 325 institutionsQ4 2025: 343 institutionsQ1 2026: 301 institutionsQ2 2026: 275 institutions
Value heldQ1 2026: $1.80B
Q1 2021: $5.21BQ2 2021: $4.83BQ3 2021: $5.91BQ4 2021: $5.95BQ1 2022: $6.92BQ2 2022: $5.01BQ3 2022: $5.01BQ4 2022: $7.11BQ1 2023: $6.68BQ2 2023: $9.11BQ3 2023: $5.65BQ4 2023: $6.31BQ1 2024: $6.83BQ2 2024: $4.23BQ3 2024: $7.03BQ4 2024: $6.20BQ1 2025: $5.46BQ2 2025: $4.39BQ3 2025: $2.31BQ4 2025: $3.12BQ1 2026: $1.80BQ2 2026: $1.65B
Institutions holding INSP and their total value by quarter
QuarterHoldersValue
Q2 2026275$1.65B
Q1 2026301$1.80B
Q4 2025343$3.12B
Q3 2025325$2.31B
Q2 2025356$4.39B
Q1 2025363$5.46B
Q4 2024357$6.20B
Q3 2024347$7.03B
Q2 2024325$4.23B
Q1 2024327$6.83B
Q4 2023343$6.31B
Q3 2023365$5.65B
Q2 2023407$9.11B
Q1 2023374$6.68B
Q4 2022340$7.11B
Q3 2022301$5.01B
Q2 2022287$5.01B
Q1 2022299$6.92B
Q4 2021289$5.95B
Q3 2021254$5.91B
Q2 2021248$4.83B
Q1 2021251$5.21B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Inspire Medical Systems, Inc.; share changes are against Q4 2025.

Institutions holding INSP in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
State Board of Administration of Florida Retirement System27,519$1.42M0.00%−2,471−8.2%Reduced
Alliancebernstein L.P.15,160$1.40M0.00%−15,476−50.5%Reduced
Envestnet Asset Management Inc26,566$1.37M0.00%+10,113+61.5%Added
Quantinno Capital Management LP26,555$1.37M0.00%+13,507+103.5%Added
Vanguard Asset Management, Ltd25,473$1.31M0.00%+25,473New
Voya Investment Management LLC24,871$1.28M0.00%−7,678−23.6%Reduced
Schonfeld Strategic Advisors LLC24,180$1.25M0.01%−767−3.1%Reduced
Prudential Financial Inc23,715$1.22M0.00%+40+0.2%Added
New York State Teachers Retirement System23,599$1.22M0.00%+2,004+9.3%Added
Leonteq Securities AG22,812$1.18M0.07%+14,873+187.3%Added
Boothbay Fund Management, LLC22,035$1.14M0.03%+19,619+812.0%Added
Great West Life Assurance Co21,621$1.11M0.00%−1,372−6.0%Reduced
State of Wisconsin Investment Board21,023$1.08M0.00%−10,446−33.2%Reduced
Manufacturers Life Insurance Company, The21,005$1.08M0.00%−935−4.3%Reduced
Oak Thistle LLC20,384$1.05M0.10%+13,091+179.5%Added
HSBC Holdings PLC19,730$996.8K0.00%−23,598−54.5%Reduced
TD Asset Management Inc19,290$995.0K0.00%−4,510−18.9%Reduced
Lazard Asset Management LLC18,938$976.8K0.00%−26,043−57.9%Reduced
DAFNA Capital Management LLC18,200$938.8K0.21%+9,600+111.6%Added
Landscape Capital Management, L.L.C.17,607$908.2K0.06%−4,248−19.4%Reduced
Thrivent Financial for Lutherans17,359$895.0K0.00%−9,917−36.4%Reduced
State of Tennessee, Treasury Department16,697$861.2K0.00%00.0%Unchanged
Omers Administration Corp16,153$833.2K0.01%+1,600+11.0%Added
Congress Asset Management Co15,983$824.4K0.01%+2,916+22.3%Added
Lecap Asset Management Ltd15,605$804.9K0.30%+4,595+41.7%Added
Jain Global LLC14,804$763.6K0.01%−253,446−94.5%Reduced
Gsa Capital Partners LLP14,568$751.0K0.05%+5,353+58.1%Added
Mirabella Financial Services LLP14,537$749.8K0.07%+14,537New
State of Alaska, Department of Revenue14,491$747.0K0.01%−605−4.0%Reduced
Janus Henderson Group PLC13,451$693.7K0.00%−548,880−97.6%Reduced
Russell Investments Group, Ltd.12,607$650.3K0.00%+1,436+12.9%Added
Police & Firemen's Retirement System of New Jersey12,519$645.7K0.01%+696+5.9%Added
Treasurer of the State of North Carolina12,263$633.0K0.00%+921+8.1%Added
Pinnacle Associates Ltd11,958$616.8K0.01%+11,958New
Diversified Trust Co11,867$612.1K0.01%+3,435+40.7%Added
Zurcher Kantonalbank (Zurich Cantonalbank)11,604$598.5K0.00%+2,339+25.2%Added
IMC-Chicago, LLC11,518$594.1K0.01%+11,518New
LPL Financial LLC11,509$593.6K0.00%−2,483−17.7%Reduced
Louisiana State Employees Retirement System11,500$593.2K0.01%−600−5.0%Reduced
Creative Planning11,304$583.1K0.00%+3,133+38.3%Added
Havemeyer Place LP10,986$566.7K0.07%+10,562+2,491.0%Added
Universal- Beteiligungs- und Servicegesellschaft mbH10,703$552.1K0.00%−27,701−72.1%Reduced
American Century Companies Inc10,682$551.0K0.00%+10,682New
Vanguard Global Advisers, LLC10,627$548.1K0.00%+10,627New
Hussman Strategic Advisors, Inc.10,500$541.6K0.12%+10,500New
Truist Financial Corp10,360$534.4K0.00%+10,360New
Handelsbanken Fonder AB9,800$505.0K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.9,715$501.1K0.00%−1,160−10.7%Reduced
FORA Capital, LLC9,107$470.0K0.03%−5,159−36.2%Reduced
Dynamic Technology Lab Private Ltd9,101$469.4K0.08%−4,782−34.4%Reduced
Janney Montgomery Scott LLC9,081$468.0K0.00%+4,705+107.5%Added
Amalgamated Bank8,864$457.0K0.00%−406−4.4%Reduced
Palo Alto Investors LP8,772$452.5K0.07%00.0%Unchanged
Unique Wealth Strategies, LLC8,758$451.7K0.18%+8,758New
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main8,548$440.9K0.00%+8,548New
Mount Yale Investment Advisors, LLC8,496$438.2K0.01%+8,496New
Alps Advisors Inc8,450$435.9K0.00%+8,450New
Public Employees Retirement System of Ohio8,338$430.1K0.00%+193+2.4%Added
Jump Financial, LLC8,201$423.0K0.01%−10,435−56.0%Reduced
OP Asset Management Ltd8,084$417.0K0.00%+5,801+254.1%Added
Arizona State Retirement System7,729$398.7K0.00%−131−1.7%Reduced
Aviva PLC7,460$384.8K0.00%+7,460New
Campbell & CO Investment Adviser LLC7,380$380.7K0.02%−1,840−20.0%Reduced
Sectoral Asset Management Inc7,225$372.7K0.31%+25+0.3%Added
Yousif Capital Management, LLC7,139$368.2K0.00%−190−2.6%Reduced
CWM, LLC6,966$359.3K0.00%+6,612+1,867.8%Added
Skopos Labs, Inc.6,895$355.6K0.01%+3,619+110.5%Added
Bridgefront Capital, LLC6,773$349.4K0.09%+6,773New
Vanguard Investments Australia, Ltd.6,759$348.6K0.00%+6,759New
Mirae Asset Global ETFs Holdings Ltd.6,743$347.8K0.00%−2,680−28.4%Reduced
Teachers Retirement System of the State of Kentucky6,651$343.0K0.00%−24,418−78.6%Reduced
Fifth Third Bancorp6,441$332.2K0.00%+6,101+1,794.4%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys6,431$331.7K0.00%−115−1.8%Reduced
LSV Asset Management6,200$320.0K0.00%+6,200New
KLP Kapitalforvaltning AS6,000$309.5K0.00%00.0%Unchanged
Mercer Global Advisors Inc5,977$308.3K0.00%+5,977New
Oregon Public Employees Retirement Fund5,962$307.5K0.00%−100−1.6%Reduced
Polymer Capital Management (US) LLC5,583$288.0K0.04%+5,583New
Toroso Investments, LLC5,541$285.8K0.00%+5,541New
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.5,530$285.2K0.00%+94+1.7%Added
Dark Forest Capital Management LP5,507$284.1K0.03%−3,649−39.9%Reduced
Brevan Howard Capital Management LP5,457$281.5K0.00%−5,328−49.4%Reduced
Wells Fargo & Company5,310$273.9K0.00%+604+12.8%Added
CI Private Wealth, LLC5,260$270.2K0.00%+1,419+36.9%Added
Blair William & Co5,189$267.6K0.00%+457+9.7%Added
Maryland State Retirement & Pension System5,116$263.9K0.01%−122−2.3%Reduced
Pictet Asset Management Holding SA5,018$258.8K0.00%+542+12.1%Added
RSM US Wealth Management LLC4,884$251.9K0.00%+421+9.4%Added
Swiss Life Asset Management Ltd4,865$250.9K0.00%+1,723+54.8%Added
Xponance, Inc.4,817$248.5K0.00%+674+16.3%Added
Prelude Capital Management, LLC4,331$223.4K0.02%+4,331New
Van Eck Associates Corp4,242$219.0K0.00%+2,228+110.6%Added
Winton Group Ltd4,200$216.6K0.01%+100+2.4%Added
Washington Capital Management Inc4,175$215.3K0.18%+1,775+74.0%Added
Apollon Wealth Management, LLC3,997$206.2K0.00%+212+5.6%Added
Diametric Capital, LP3,968$204.7K0.05%+3,968New
Scientech Research LLC3,930$202.7K0.17%+3,930New
Allspring Global Investments Holdings, LLC3,747$201.0K0.00%−337−8.3%Reduced
Public Employees Retirement Association of Colorado3,328$172.0K0.00%00.0%Unchanged
Freestone Grove Partners LP3,021$155.8K0.00%+3,021New