Inspire Medical Systems INSP Institutional Ownership

NYSE INSP

$72.71 +1.66 (+2.34%)

At close: Oct 22, 2026 · 4:00 PM EDT

Institutions by Trading Activity

273 Institutions

Increased 164 60.1%

Unchanged 33 12.1%

Reduced 76 27.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

—

13F totals exceed reported shares outstanding

Shares Held by Institutions

37.06Mn

of 28.91Mn outstanding

▲+6.27% QoQ

Shares Outstanding

28.91Mn

Institutional Investors

273

filed 13F for Jun 2026

▼-25 vs prior quarter

Net Shares Added (QoQ)

+2.19Mn

accumulated since last quarter

Value of Holdings

$2.69Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Inspire Medical Systems, Inc. (NYSE:INSP) appeared in the 13F filings of 273 institutional investors for the quarter ended June 30, 2026.

Total shares held in Inspire Medical Systems rose 6.27% from Q1 2026, while the number of holders fell 22.66% from Q2 2025.
Among the 273 holders of Inspire Medical Systems, 164 added to their positions, 76 reduced their stakes and 33 left their positions unchanged.
In total, institutional investors held 37.06Mn shares of Inspire Medical Systems at the end of Q2 2026, up 2.19Mn from the prior quarter and up 3.61Mn from a year earlier.
As of June 30, 2026, BlackRock, Inc. held the largest stake in Inspire Medical Systems with 4.74Mn shares.
Among existing holders, the largest additions to Inspire Medical Systems in Q2 2026 came from AQR Capital Management LLC (+1.55Mn shares), Soleus Capital Management, L.P. (+1.36Mn shares), BlackRock, Inc. (+1.19Mn shares), UBS Group AG (+1.01Mn shares) and Vanguard Portfolio Management LLC (+451.79K shares).
Holders that trimmed the most shares of Inspire Medical Systems in Q2 2026 while keeping a position were Deerfield Management Company, L.P. (-1.41Mn shares), Morgan Stanley (-659.41K shares), Deutsche Bank AG (-336.98K shares), Millennium Management LLC (-292K shares) and Royal Bank of Canada (-245.25K shares).
Per Business Quant, the top 10 investors in INSP for the quarter ended June 30, 2026 were BlackRock, Inc. (4.74Mn shares), Wellington Management Group LLP (2.38Mn shares), Vanguard Portfolio Management LLC (2.09Mn shares), Soleus Capital Management, L.P. (1.93Mn shares), AQR Capital Management LLC (1.86Mn shares), UBS Group AG (1.65Mn shares), D. E. Shaw & Co., Inc. (1.47Mn shares), Nomura Holdings Inc (1.37Mn shares), Deerfield Management Company, L.P. (1.3Mn shares) and Vanguard Capital Management LLC (1.27Mn shares).

Form 13F Holdings

273 Institutional Holders

Report period 30 Jun, 2026

Total shares held 37.06Mn

Of outstanding —

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	4,737,519	16.39%	▲1,187,965	+33.47%	$211.34Mn
2	WELLINGTON MANAGEMENT GROUP LLP	0000902219	2,382,660	8.24%	▼153,294	-6.04%	$106.29Mn
3	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	2,088,961	7.23%	▲451,788	+27.60%	$93.19Mn
4	Soleus Capital Management, L.P.	0001802630	1,931,436	6.68%	▲1,355,137	+235.14%	$86.16Mn
5	AQR CAPITAL MANAGEMENT LLC	0001167557	1,856,800	6.42%	▲1,548,138	+501.56%	$80.94Mn
6	UBS Group AG	0001610520	1,645,511	5.69%	▲1,006,583	+157.54%	$73.41Mn
7	D. E. Shaw & Co., Inc.	0001009207	1,470,462	5.09%	▲281,925	+23.72%	$65.60Mn
8	Nomura Holdings Inc	0001163653	1,369,410	4.74%	▲1,369,410	0.00%	$61.09Mn
9	DEERFIELD MANAGEMENT COMPANY, L.P.	0001009258	1,296,862	4.49%	▼1,406,376	-52.03%	$57.85Mn
10	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,270,928	4.40%	▲4,190	+0.33%	$56.70Mn
11	State Street Corp	0000093751	1,206,494	4.17%	▲250,483	+26.20%	$53.82Mn
12	Assenagon Asset Management S.A.	0001546007	864,395	2.99%	▲344,221	+66.17%	$38.56Mn
13	Morgan Stanley	0000895421	791,222	2.74%	▼659,412	-45.46%	$35.30Mn
14	Artisan Partners Limited Partnership	0001466153	732,323	2.53%	▼48,252	-6.18%	$32.67Mn
15	GEODE CAPITAL MANAGEMENT, LLC	0001214717	700,836	2.42%	▲190,602	+37.36%	$31.27Mn
16	BRAIDWELL LP	0001920938	677,570	2.34%	0	0.00%	$30.23Mn
17	Goldman Sachs Group Inc	0000886982	645,858	2.23%	▼18,145	-2.73%	$28.81Mn
18	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	0000861177	546,020	1.89%	▲97,233	+21.67%	$24.36Mn
19	CITADEL ADVISORS LLC	0001423053	506,334	1.75%	▲112,258	+28.49%	$22.59Mn
20	SG Americas Securities, LLC	0001313360	491,703	1.70%	▲386,556	+367.63%	$21.94K

Showing 1 to 20 of 273 holders