Inspire Medical Systems, Inc. - Common stock, par value $0.001 per share (INSP)

Historical Holders from Q2 2018 to Q4 2025

Type / Class: Equity / Common stock, par value $0.001 per share
Symbol: INSP on NYSE
Shares outstanding: 29,061,083
Price per share: $92.23
All holders as of 30 Sep 2025: Q3 2025
Total 13F shares as of 30 Sep 2025: 31,092,183
Holdings value: $2,308,506,740
% of all portfolios: 0%
Share change: -3,214,729
Value change: -$491,054,263
Average buys %: +0%
Average sells %: -0%
Number of holders: 318
Price from insider filings: $139.00

Reported Shares, Excluding Options vs Price

Reported Value, Excluding Options

Total Investors

Significant Owners of Inspire Medical Systems, Inc. - Common stock, par value $0.001 per share (INSP) based on Schedule 13D/G filings

Filer	Ownership	Change %	Holdings Value	Net Change	Nb Shares	Change %	Reporting Name	Report Period
BlackRock, Inc.	11%	-10%	$248,822,799	-$29,612,330	3,353,407	-11%	BlackRock, Inc.	30 Sep 2025
CITADEL ADVISORS LLC	5.8%		$127,107,716		1,713,042		Kenneth Griffin	29 Sep 2025
Flynn James E	5.1%		$109,541,683		1,476,303		Deerfield Mgmt, L.P.	06 Nov 2025
FMR LLC	2.5%	-72%	$55,005,358	-$130,571,372	741,312	-70%	FMR LLC	30 Sep 2025
WASATCH ADVISORS LP	0.5%	-92%	$10,084,819	-$103,003,921	135,914	-91%	Wasatch Advisors LP	30 Sep 2025

As of 30 Sep 2025, Inspire Medical Systems, Inc. - Common stock, par value $0.001 per share (INSP) has 318 institutional shareholders filing 13F forms. They hold 31,092,183 shares .

Top 25 institutional shareholders own 76% of the company.

Filer	Ownership	Nb Shares	Share Change %	Portfolio %	Holdings Value
BlackRock, Inc.	12%	3,547,195	-8.4%	0%	$263,201,869
VANGUARD GROUP INC	10%	3,000,087	-6.4%	0%	$222,606,456
CITADEL ADVISORS LLC	6%	1,748,409	+20055%	0.1%	$129,731,948
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	4.5%	1,297,573	+69%	0.25%	$96,279,917
BAILLIE GIFFORD & CO	3.7%	1,084,350	-2.7%	0.06%	$80,458,771
DEERFIELD MANAGEMENT COMPANY, L.P.	3.6%	1,047,694	+648%	1.2%	$77,738,895
STATE STREET CORP	3.4%	979,309	-5%	0%	$72,664,728
BRAIDWELL LP	3%	883,747	+69%	1.9%	$65,574,027
UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC	2.9%	833,599	+37%	0.01%	$61,853,047
FMR LLC	2.6%	749,312	-67%	0%	$55,598,958
Soleus Capital Management, L.P.	2.5%	728,188	+568%	2.9%	$54,031,550
JANUS HENDERSON GROUP PLC	2.3%	667,078	+4.1%	0.02%	$49,496,529
Balyasny Asset Management L.P.	2.1%	614,359		0.09%	$45,585,438
Artisan Partners Limited Partnership	1.8%	526,242	+45%	0.06%	$39,047,156
BNP PARIBAS FINANCIAL MARKETS	1.8%	522,180	0%	0.03%	$38,745,756
GEODE CAPITAL MANAGEMENT, LLC	1.7%	504,987	-1.5%	0%	$37,476,743
UBS Group AG	1.6%	467,736	+8.6%	0.01%	$34,706,011
MORGAN STANLEY	1.6%	450,641	+49%	0%	$33,437,643
Champlain Investment Partners, LLC	1.4%	407,059	-1.2%	0.23%	$30,203,778
Aberdeen Group plc	1.4%	396,340	+63%	0.05%	$29,967,267
D. E. Shaw & Co., Inc.	1.2%	358,857	+2423%	0.02%	$26,627,189
MILLENNIUM MANAGEMENT LLC	1.2%	356,808		0.02%	$26,475,154
DIMENSIONAL FUND ADVISORS LP	1.2%	343,718	-0.33%	0.01%	$25,506,313
FRANKLIN RESOURCES INC	1%	297,245	+30%	0.01%	$22,055,613
BANK OF AMERICA CORP /DE/	0.99%	288,828	+14%	0%	$21,431,039

Institutional Holders of Inspire Medical Systems, Inc. - Common stock, par value $0.001 per share (INSP) across Reporting Periods

Period	Reported Shares, Excl. Options	Value, Excl. Options	Value Change	Puts Notional Value	Calls Notional Value	Price	Investors
2025 Q4	19,848	$1,821,700	+$603,871			$92.23	7
2025 Q3	31,092,183	$2,308,506,740	-$491,054,263	$17,182,993	$7,255,685	$74.20	318
2025 Q2	33,831,801	$4,392,084,401	-$58,153,313	$16,069,709	$14,699,468	$129.77	355
2025 Q1	34,106,290	$5,427,649,475	+$99,882,141	$33,808,224	$36,580,700	$159.28	357
2024 Q4	33,394,193	$6,197,701,258	+$41,500,025	$68,585,709	$43,633,123	$185.38	351
2024 Q3	33,044,652	$6,968,128,155	-$39,544,759	$124,446,335	$109,364,293	$211.05	348
2024 Q2	31,603,291	$4,230,231,298	-$102,711,395	$57,372,921	$53,063,595	$133.83	325
2024 Q1	31,507,632	$6,770,323,429	+$89,154,482	$133,126,842	$97,922,761	$214.79	325
2023 Q4	213,187	$43,368,632	-$28,053,235			$203.43	2
2023 Q3	28,121,074	$5,580,309,683	-$50,640,152	$125,731,584	$55,285,384	$198.44	351
2023 Q2	27,736,761	$9,003,158,481	-$221,258,682	$66,471,802	$56,685,655	$324.64	396
2023 Q1	28,489,826	$6,668,110,887	+$65,995,847	$33,472,671	$35,343,021	$234.07	365
2022 Q4	28,017,286	$7,056,154,404	+$112,988,747	$38,686,700	$93,606,383	$251.88	327
2022 Q3	26,704,367	$4,739,143,764	+$151,773,954	$31,536,000	$87,212,000	$177.37	284
2022 Q2	27,428,310	$5,012,803,475	+$90,598,395	$63,072,416	$51,115,280	$182.67	273
2022 Q1	26,467,088	$6,790,843,060	+$353,336,351	$84,066,000	$87,891,000	$256.69	288
2021 Q4	25,810,517	$5,938,752,044	+$69,832,759	$46,428,000	$56,114,000	$230.06	280
2021 Q3	25,371,602	$5,908,200,728	+$103,088,184	$24,861,000	$16,580,000	$232.88	247
2021 Q2	24,992,235	$4,831,728,707	-$54,745,405	$23,823,000	$10,728,000	$193.26	246
2021 Q1	25,166,598	$5,209,161,369	+$95,111,548	$34,435,000	$17,284,000	$206.99	249
2020 Q4	25,136,412	$4,728,102,287	-$141,123,488	$29,084,000	$28,942,000	$188.09	235
2020 Q3	26,143,940	$3,374,160,696	-$40,346,686	$27,454,000	$45,044,000	$129.05	200
2020 Q2	26,862,057	$2,351,458,452	+$327,472,776	$6,256,000	$14,494,000	$87.02	184
2020 Q1	19,092,065	$1,150,573,501	-$149,508,782	$4,574,000	$2,796,000	$60.28	159
2019 Q4	22,240,449	$1,650,460,334	+$34,653,932	$5,128,000	$26,835,000	$74.21	168
2019 Q3	21,442,150	$1,308,397,700	+$112,747,407	$1,870,000	$53,103,000	$61.02	151
2019 Q2	19,924,701	$1,208,429,776	+$175,477,981	$1,613,000	$15,624,000	$60.65	143
2019 Q1	17,738,168	$1,007,140,751	+$168,473,024	$2,964,000	$2,106,000	$56.78	142
2018 Q4	14,874,625	$628,449,909	+$161,578,630		$3,837,000	$42.25	102
2018 Q3	9,253,107	$389,362,304	-$3,132,255			$42.08	84
2018 Q2	9,448,509	$336,936,129	+$336,926,833			$35.66	75