Inspire Medical Systems Ownership | Who Owns Inspire Medical Systems?

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Inspire Medical Systems Ownership Summary

Inspire Medical Systems is owned by 105.37% institutional investors, 1.16% insiders. Blackrock funding, inc. /de is the largest institutional shareholder, holding 12.02% of INSP shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 5.93% of its assets in Inspire Medical Systems shares.

INSP Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Inspire Medical Systems	105.37%	1.16%	-6.53%
Sector	Healthcare Stocks	41.89%	10.80%	47.31%
Industry	Medical Device Stocks	37.80%	10.03%	52.17%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	3.55M	12.02%	$263.20M
Vanguard group	3.00M	10.17%	$222.61M
Blackrock	1.86M	6.25%	$248.64M
William blair investment management	1.30M	4.40%	$96.28M
Baillie gifford	1.08M	3.67%	$80.46B
Deerfield management company, l.p. (series c)	1.05M	3.55%	$77.74M
State street	979.31K	3.32%	$72.66M
Braidwell lp	883.75K	3.00%	$65.57M
Ubs asset management americas	833.60K	2.83%	$61.85M
Fmr	749.31K	2.54%	$55.60M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Soleus capital management	728.19K	2.72%	$54.03M
Kopp family office	40.61K	1.96%	$3.01M
Braidwell lp	883.75K	1.95%	$65.57M
Bullseye asset management	36.13K	1.40%	$2.68M
Deerfield management company, l.p. (series c)	1.05M	1.19%	$77.74M
Atika capital management	187.60K	1.12%	$13.92M
Brown capital management	278.04K	0.85%	$20.63M
Exome asset management	18.60K	0.84%	$1.38M
Integral health asset management	120.00K	0.60%	$8.90M
Monimus capital management, lp	13.08K	0.60%	$970.31K

Top Buyers

Holder	Shares	% Assets	Change
Deerfield management company, l.p. (series c)	1.05M	1.19%	907.69K
Soleus capital management	728.19K	2.72%	619.19K
William blair investment management	1.30M	0.25%	528.40K
Bnp paribas arbitrage, snc	522.18K	0.02%	462.41K
Braidwell lp	883.75K	1.95%	361.34K

Top Sellers

Holder	Shares	% Assets	Change
Dragoneer investment group	-	-	-2.35M
Fmr	749.31K	0.00%	-1.54M
Wasatch advisors lp	135.91K	0.05%	-1.50M
Farallon capital management	-	-	-626.85K
Westfield capital management co lp	-	-	-538.29K

New Positions

Holder	Shares	% Assets	Change	Value
Vestal point capital, lp	135.00K	0.45%	135.00K	$10.02M
Ra capital management	114.90K	0.11%	114.90K	$8.53M
Regal partners	101.71K	0.54%	101.71K	$7.55B
Cubist systematic strategies	97.39K	0.03%	97.39K	$7.23M
Voloridge investment management	88.30K	0.02%	88.30K	$6.55M

Sold Out

Holder	Change
Corecap advisors	-1.00
Activest wealth management	-1.00
Mendota financial group	-1.00
Assetmark	-1.00
True wealth design	-2.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Sep 30, 2025	325	-12.16%	31,091,867	-8.07%	105	0.80%	157	-12.29%	125	-12.59%
Jun 30, 2025	360	-5.01%	33,671,190	-0.52%	114	0.88%	177	-7.33%	140	17.65%
Mar 31, 2025	380	-0.52%	34,018,174	1.77%	114	0.91%	190	3.26%	121	-4.72%
Dec 31, 2024	359	-4.77%	31,850,341	-3.62%	106	0.87%	169	-11.98%	121	7.08%
Sep 30, 2024	374	5.65%	32,999,689	4.39%	110	0.98%	192	-1.54%	112	13.13%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Small-Cap ETF	1.75M	5.93%	-
Vanguard US Total Market Shares ETF	939.66K	3.17%	747.00
Vanguard Total Stock Mkt Idx Inv	930.81K	3.15%	-25.46K
Vanguard Small Cap Index	716.66K	2.42%	-4.13K
Baillie Gifford US Equity Growth	640.69K	2.14%	-20.57K
Vanguard US Growth Investor	577.84K	1.96%	-26.67K
Hartford MidCap Y	470.89K	1.58%	-9.58K
Wasatch Core Growth	442.54K	1.50%	9.04K
Vanguard Small Cap Growth Index Inv	404.21K	1.37%	-134.00
Delaware Ivy Mid Cap Growth A	382.67K	1.28%	-9.51K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Aug 29, 2025	Buchholz Richard	Chief Financial Officer	Sell	$1.03M
May 19, 2025	Rondoni John	See Remarks	Sell	$259.02K
May 02, 2025	mcCormick Shawn	-	Sell	$57.60K
Mar 03, 2025	Ban Randy	See Remarks	Sell	$414.48K
Mar 03, 2025	Ban Randy	See Remarks	Sell	$229.59K

Insider Transactions Trends

Date	Buy	Sell
2025 Q4	-	-
2025 Q3	-	1
2025 Q2	-	2
2025 Q1	-	16
2024 Q4	-	4

INSP Ownership FAQ

Who Owns Inspire Medical Systems?

Inspire Medical Systems shareholders are primarily institutional investors at 105.37%, followed by 1.16% insiders and -6.53% retail investors. The average institutional ownership in Inspire Medical Systems's industry, Medical Device Stocks, is 37.80%, which Inspire Medical Systems exceeds.

Who owns the most shares of Inspire Medical Systems?

Inspire Medical Systems’s largest shareholders are Blackrock funding, inc. /de (3.55M shares, 12.02%), Vanguard group (3M shares, 10.17%), and Blackrock (1.86M shares, 6.25%). Together, they hold 28.44% of Inspire Medical Systems’s total shares outstanding.

Does Blackrock own Inspire Medical Systems?

Yes, BlackRock owns 6.25% of Inspire Medical Systems, totaling 1.86M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 248.64M$. In the last quarter, BlackRock decreased its holdings by -33.103K shares, a -1.75% change.

Who is Inspire Medical Systems’s biggest shareholder by percentage of total assets invested?

Soleus capital management is Inspire Medical Systems’s biggest shareholder by percentage of total assets invested, with 2.72% of its assets in 728.19K Inspire Medical Systems shares, valued at 54.03M$.

Who is the top mutual fund holder of Inspire Medical Systems shares?

iShares Core S&P Small-Cap ETF is the top mutual fund holder of Inspire Medical Systems shares, with 5.93% of its total shares outstanding invested in 1.75M Inspire Medical Systems shares.

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