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.

Q4 2021 vs. Q3 2021

How the institutions holding Inspire Medical Systems, Inc. changed between Q3 2021 and Q4 2021.

All holders in Q4 2021 All holders in Q3 2021

13F holders of INSP: Q3 2021 compared with Q4 2021
Measure	Q3 2021	Of which not filed for Q4 2021	Q4 2021	Change
Holders	254	2	289	+37
Shares	25.4M	320.7K	25.9M	+785.1K (+3.1%)
Value	$5.91B	$74.7M	$5.95B	+$111.0M (+1.9%)

2 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (53)

Institutions that held Inspire Medical Systems, Inc. at the end of Q4 2021 but not at the end of Q3 2021.

Institutions new to INSP in Q4 2021
Institution	Shares	Value	% of portfolio
Allspring Global Investments Holdings, LLC	428,542	$98.6M	0.11%
Rhenman & Partners Asset Management AB	46,373	$10.7M	0.71%
Renaissance Technologies LLC	31,100	$7.16M	0.01%
HealthCor Management, L.P.	17,490	$4.02M	0.22%
Putnam Investments LLC	15,740	$3.62M	0.01%
Next Century Growth Investors LLC	13,127	$3.02M	0.27%
EFG Asset Management (North America) Corp.	11,540	$2.65M	0.35%
M&G Investment Management Ltd	7,042	$1.62M	0.01%
Zacks Investment Management	5,666	$1.30M	0.02%
Winton Group Ltd	4,971	$1.14M	0.07%
Toronto Dominion Bank	4,600	$1.06M	0.00%
Royce & Associates LP	4,488	$1.03M	0.01%
ClariVest Asset Management LLC	4,250	$977.0K	0.03%
Quantbot Technologies LP	4,115	$946.0K	0.08%
Level Four Advisory Services, LLC	3,712	$854.0K	0.07%
Trexquant Investment LP	3,676	$846.0K	0.05%
Ergoteles LLC	3,288	$756.0K	0.03%
Quent Capital, LLC	3,225	$742.0K	0.16%
Boulder Hill Capital Management LP	2,500	$575.0K	0.56%
Guggenheim Capital LLC	2,004	$461.0K	0.00%
Rock Creek Group, LP	2,066	$457.0K	0.07%
Gsa Capital Partners LLP	1,555	$358.0K	0.04%
National Asset Management, Inc.	1,381	$318.0K	0.01%
Cambridge Investment Research Advisors, Inc.	1,345	$309.0K	0.00%
Stanley-Laman Group, Ltd.	1,302	$300.0K	0.04%
Magnetar Financial LLC	1,241	$286.0K	0.00%
Crossmark Global Holdings, Inc.	1,205	$277.0K	0.01%
Group One Trading, L.P.	1,172	$270.0K	0.01%
Verition Fund Management LLC	1,175	$270.0K	0.00%
Paloma Partners Management Co	1,086	$250.0K	0.01%
TCWP LLC	1,000	$230.0K	0.05%
Profund Advisors LLC	909	$209.0K	0.01%
C M Bidwell & Associates Ltd	860	$198.0K	0.12%
Bank Julius Baer & Co. Ltd, Zurich	501	$115.0K	0.00%
Aquatic Capital Management LLC	300	$69.0K	0.13%
Sandy Spring Bank	294	$68.0K	0.00%
Altshuler Shaham Ltd	213	$49.0K	0.00%
Pinebridge Investments, L.P.	200	$46.0K	0.00%
Covestor Ltd	153	$35.0K	0.05%
Leverty Financial Group, LLC	110	$25.0K	0.02%
National Bank of Canada	70	$16.0K	0.00%
Washington Trust Advisors, Inc.	55	$13.0K	0.00%
HM Payson & Co	46	$11.0K	0.00%
Baystate Wealth Management LLC	44	$10.0K	0.00%
Ahrens Investment Partners LLC	40	$9.00K	0.00%
EverSource Wealth Advisors, LLC	32	$7.00K	0.00%
Dark Forest Capital Management LP	25	$6.00K	0.00%
Confluence Wealth Services, Inc.	25	$5.00K	0.00%
Trust Co of Vermont	18	$4.00K	0.00%
CWM, LLC	9	$2.00K	0.00%
Henrickson Nauta Wealth Advisors, Inc.	8	$2.00K	0.00%
Glassman Wealth Services	3	$1.00K	0.00%
Curi Capital	3	$0	0.00%

Sold out (16)

Institutions that held Inspire Medical Systems, Inc. at the end of Q3 2021 and filed for Q4 2021 without it.

Institutions that sold out of INSP in Q4 2021
Institution	Shares, Q3 2021	Value, Q3 2021
Cormorant Asset Management, LP	48,132	$11.2M
Balyasny Asset Management LLC	27,250	$6.35M
Natixis	10,726	$2.50M
Integral Health Asset Management, LLC	10,000	$2.33M
EAM Investors, LLC	9,993	$2.33M
ETF Managers Group, LLC	6,311	$1.41M
Penserra Capital Management LLC	5,652	$1.32M
Gotham Asset Management, LLC	3,683	$858.0K
Blueshift Asset Management, LLC	3,235	$753.0K
Walleye Trading LLC	1,079	$251.0K
Point72 Hong Kong Ltd	878	$204.0K
Cahill Financial Advisors Inc	375	$87.0K
PEAK6 Investments LLC	312	$73.0K
Atticus Wealth Management, LLC	229	$53.0K
Gerber Kawasaki Wealth & Investment Management	145	$33.0K
Meridian Wealth Partners, LLC	6	$1.00K

Not filed for Q4 2021 yet (2)

Institutions that held Inspire Medical Systems, Inc. at the end of Q3 2021 and haven't filed a 13F for Q4 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding INSP in Q3 2021 that haven't filed for Q4 2021
Institution	Shares, Q3 2021	Value, Q3 2021
Marshall Wace North America L.P.	320,657	$74.7M
Berman Capital Advisors, LLC	51	$11.0K