Inspire Medical Systems, Inc.

INSP

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

SEC filings (opens in a new tab)

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.

Q1 2024 vs. Q4 2023

How the institutions holding Inspire Medical Systems, Inc. changed between Q4 2023 and Q1 2024.

All holders in Q1 2024 All holders in Q4 2023

13F holders of INSP: Q4 2023 compared with Q1 2024
Measure	Q4 2023	Of which not filed for Q1 2024	Q1 2024	Change
Holders	343	4	327	−12
Shares	31.0M	20.0K	31.8M	+805.4K (+2.6%)
Value	$6.31B	$4.07M	$6.83B	+$529.0M (+8.4%)

4 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (43)

Institutions that held Inspire Medical Systems, Inc. at the end of Q1 2024 but not at the end of Q4 2023.

Institutions new to INSP in Q1 2024
Institution	Shares	Value	% of portfolio
Artisan Partners Limited Partnership	301,174	$64.7M	0.09%
Brown Capital Management LLC	78,399	$16.8M	0.30%
Kopp LeRoy C	41,054	$8.82M	5.04%
LMCG Investments, LLC	33,892	$7.28M	0.43%
PFM Health Sciences, LP	33,557	$7.21M	0.36%
Tri Locum Partners LP	23,566	$5.06M	1.76%
Jacobs Levy Equity Management, Inc	21,018	$4.51M	0.02%
British Columbia Investment Management Corp	20,000	$4.30M	0.03%
Twin Tree Management, LP	17,632	$3.79M	0.09%
Mirae Asset Global Investments Co., Ltd.	13,044	$3.11M	0.01%
Private Ocean, LLC	12,748	$2.74M	0.29%
Northwest & Ethical Investments L.P.	12,335	$2.65M	0.08%
Kennedy Capital Management, Inc.	10,277	$2.21M	0.05%
AIA Group Ltd	10,163	$2.18M	0.07%
Intech Investment Management LLC	9,998	$2.15M	0.03%
1832 Asset Management L.P.	8,100	$1.74M	0.00%
Sofinnova Investments, Inc.	8,099	$1.74M	0.10%
Sit Investment Associates Inc	6,830	$1.47M	0.03%
Centiva Capital, LP	6,717	$1.44M	0.08%
Cinctive Capital Management LP	5,483	$1.18M	0.06%
Toroso Investments, LLC	5,361	$1.15M	0.02%
Eagle Asset Management Inc	5,362	$1.12M	0.01%
Two Sigma Securities, LLC	4,661	$1.00M	0.05%
Danske Bank A/S	4,400	$945.1K	0.00%
Twin Capital Management Inc	3,951	$848.6K	0.11%
Cetera Investment Advisers	2,930	$629.2K	0.00%
Bayesian Capital Management, LP	2,347	$504.1K	0.05%
Synovus Financial Corp	1,992	$427.9K	0.01%
Cresset Asset Management, LLC	1,294	$277.9K	0.00%
Moody National Bank Trust Division	1,110	$238.4K	0.02%
Raymond James & Associates	1,103	$236.9K	0.00%
M&T Bank Corp	1,074	$231.1K	0.00%
Cerity Partners LLC	1,070	$229.8K	0.00%
Private Advisor Group, LLC	999	$214.6K	0.00%
Walleye Capital LLC	625	$134.2K	0.00%
Continuum Advisory, LLC	183	$31.9K	0.00%
Anfield Capital Management, LLC	20	$4.30K	0.00%
Benjamin F. Edwards & Company, Inc.	17	$4.00K	0.00%
Valley National Advisers Inc	10	$2.00K	0.00%
Quent Capital, LLC	7	$1.50K	0.00%
Harbor Investment Advisory, LLC	6	$1.29K	0.00%
Quest Partners LLC	6	$1.29K	0.00%
TFC Financial Management	1	$215	0.00%

Sold out (55)

Institutions that held Inspire Medical Systems, Inc. at the end of Q4 2023 and filed for Q1 2024 without it.

Institutions that sold out of INSP in Q1 2024
Institution	Shares, Q4 2023	Value, Q4 2023
Slate Path Capital LP	294,000	$59.8M
Marshall Wace, LLP	247,641	$50.4M
Iron Triangle Partners LP	150,000	$30.5M
Summit Partners Public Asset Management, LLC	141,777	$28.8M
Ophir Asset Management Pty Ltd	125,788	$25.6M
Alyeska Investment Group, L.P.	87,687	$17.8M
Tudor Investment Corp Et Al	71,600	$14.6M
Royce & Associates LP	42,269	$8.60M
Polar Asset Management Partners Inc.	39,800	$8.10M
Axiom Investors LLC	27,201	$5.53M
Squarepoint Ops LLC	26,539	$5.40M
Optimas Capital Ltd	18,979	$3.86M
Miura Global Management, LLC	15,000	$3.05M
Archon Capital Management LLC	15,000	$3.05M
LMR Partners LLP	14,579	$2.97M
Sirios Capital Management L P	13,122	$2.67M
Prudential Financial Inc	9,923	$2.02M
Calamos Advisors LLC	9,483	$1.93M
DekaBank Deutsche Girozentrale	7,500	$1.51M
Natixis	6,809	$1.39M
Knights of Columbus Asset Advisors LLC	6,536	$1.33M
Eisler Capital (UK) Ltd.	5,604	$1.14M
Chartwell Investment Partners, LLC	3,748	$762.0K
Aigen Investment Management, LP	3,122	$635.1K
Weiss Multi-Strategy Advisers LLC	3,115	$634.0K
Edgestream Partners, L.P.	2,760	$561.5K
Simplex Trading, LLC	2,699	$549.0K
Cetera Advisors LLC	2,436	$495.6K
Millrace Asset Group, Inc.	2,321	$472.0K
Occudo Quantitative Strategies LP	2,241	$455.9K
Wolverine Trading, LLC	1,806	$367.4K
Affinity Investment Advisors, LLC	1,606	$326.7K
Los Angeles Capital Management LLC	1,583	$322.0K
First Hawaiian Bank	1,560	$317.4K
Cetera Advisor Networks LLC	1,446	$294.2K
Prelude Capital Management, LLC	1,310	$266.5K
Captrust Financial Advisors	1,157	$235.4K
First Trust Advisors LP	1,096	$223.0K
Capula Management Ltd	1,071	$217.9K
Walleye Trading LLC	1,055	$214.6K
Cornerstone Investment Partners, LLC	1,016	$206.7K
Tradition Wealth Management, LLC	628	$128.0K
Exchange Traded Concepts, LLC	401	$81.6K
O'Dell Group, LLC	361	$73.4K
Advisory Services Network, LLC	308	$62.7K
McGlone Suttner Wealth Management, Inc.	132	$26.9K
American Capital Advisory, LLC	110	$22.4K
Sandy Spring Bank	75	$15.3K
Raleigh Capital Management Inc.	46	$9.44K
First Horizon Advisors, Inc.	27	$5.49K
HighMark Wealth Management LLC	25	$5.09K
Glassman Wealth Services	16	$3.25K
McClarren Financial Advisors, Inc.	16	$3.00K
Caldwell Sutter Capital, Inc.	1	$203
Larson Financial Group LLC	1	$203

Not filed for Q1 2024 yet (4)

Institutions that held Inspire Medical Systems, Inc. at the end of Q4 2023 and haven't filed a 13F for Q1 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding INSP in Q4 2023 that haven't filed for Q1 2024
Institution	Shares, Q4 2023	Value, Q4 2023
Putnam Investments LLC	16,811	$3.42M
AtonRa Partners	3,163	$643.4K
Baystate Wealth Management LLC	44	$9.13K
Nalls Sherbakoff Group, LLC	3	$611