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

Historical Holders from Q2 2018 to Q3 2025

Symbol: INSP on NYSE
Type / Class: Equity / Common stock, par value $0.001 per share
Shares outstanding: 29,061,083
All holders as of 30 Sep 2025: Q3 2025
Total 13F shares, excl. options: 31,092,183
Holdings value: $2,308,506,740
% of all portfolios: 0.003%
Number of holders: 318
Number of buys: 158
Number of sells: -224
Average buys %: +0%
Average sells %: -0%

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)

Filer	Ownership	Change %	Holdings Value	Net Change	Nb Shares	Change %	Reporting Name	Report Period
BlackRock, Inc.	11.3%	-10%	$248,822,799	-$29,612,330	3,353,407	-10.6%	BlackRock, Inc.	30 Sep 2025
CITADEL ADVISORS LLC	5.8%		$127,107,716		1,713,042		Kenneth Griffin	29 Sep 2025
Flynn James E	5.08%		$109,541,683		1,476,303		Deerfield Mgmt, L.P.	06 Nov 2025
FMR LLC	2.5%	-72.5%	$55,005,358	-$130,571,372	741,312	-70.4%	FMR LLC	30 Sep 2025
WASATCH ADVISORS LP	0.5%	-92%	$10,084,819	-$103,003,921	135,914	-91.1%	Wasatch Advisors LP	30 Sep 2025

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

Period	Reported Shares, Excl. Options	Value, Excl. Options	Change	Puts Notional Value	Calls Notional Value	Price	Investors
2025 Q3	31,092,183	$2,308,506,740	-$491,054,295	$17,182,993	$7,255,685	$74.2	318
2025 Q2	33,831,801	$4,392,084,401	-$58,153,296	$16,069,709	$14,699,468	$129.77	355
2025 Q1	34,119,574	$5,429,765,770	+$100,291,872	$33,808,224	$36,580,700	$159.28	359
2024 Q4	33,398,911	$6,198,135,879	-$10,392,454	$68,585,709	$43,633,123	$185.38	352
2024 Q3	33,329,348	$7,028,206,302	-$1,705,882	$124,446,335	$109,364,293	$211.05	343
2024 Q2	31,606,997	$4,230,734,481	-$140,076,478	$57,372,921	$53,063,595	$133.83	320
2024 Q1	31,802,382	$6,833,627,583	+$185,419,402	$133,126,842	$97,922,761	$214.79	324
2023 Q4	31,022,012	$6,309,755,960	+$504,375,008	$91,746,930	$63,795,648	$203.43	344
2023 Q3	28,380,805	$5,631,853,601	-$36,280,954	$125,731,584	$55,285,384	$198.44	356
2023 Q2	27,993,926	$9,086,637,911	-$98,840,711	$66,471,802	$56,684,032	$324.64	401
2023 Q1	28,513,136	$6,673,582,259	+$65,144,358	$33,472,671	$35,343,021	$234.07	368
2022 Q4	28,312,278	$7,130,563,019	+$41,625,853	$38,686,700	$93,043,124	$251.88	333
2022 Q3	28,267,105	$5,016,328,749	+$139,991,536	$31,536,000	$87,212,000	$177.37	292
2022 Q2	27,431,317	$5,013,352,590	+$89,018,351	$62,028,000	$46,682,000	$182.67	276
2022 Q1	26,955,412	$6,916,191,060	+$287,047,237	$84,066,000	$87,891,000	$256.69	291
2021 Q4	25,849,229	$5,947,709,044	+$76,974,096	$46,428,000	$56,113,000	$230.06	283
2021 Q3	25,385,159	$5,911,432,728	+$104,134,188	$24,861,000	$16,580,000	$232.88	247
2021 Q2	24,992,220	$4,831,725,707	-$34,514,146	$23,823,000	$10,728,000	$193.26	246
2021 Q1	25,166,568	$5,209,155,369	+$94,545,681	$33,731,000	$17,284,000	$206.99	247
2020 Q4	25,155,650	$4,731,720,287	-$140,415,322	$29,084,000	$28,942,000	$188.09	237
2020 Q3	26,177,389	$3,378,475,696	-$39,929,859	$27,454,000	$45,044,000	$129.05	201
2020 Q2	26,892,329	$2,354,092,452	+$328,506,311	$6,256,000	$14,494,000	$87.02	186
2020 Q1	23,290,616	$1,403,659,501	-$140,442,230	$4,574,000	$2,796,000	$60.28	166
2019 Q4	22,240,719	$1,650,480,334	+$34,675,200	$5,128,000	$26,835,000	$74.21	169
2019 Q3	21,815,581	$1,331,183,700	+$112,850,027	$1,870,000	$53,103,000	$61.02	153
2019 Q2	19,969,050	$1,211,118,776	+$171,165,829	$1,613,000	$15,624,000	$60.65	145
2019 Q1	17,810,823	$1,011,266,751	+$172,131,617	$2,964,000	$2,106,000	$56.78	143
2018 Q4	14,874,625	$628,449,909	+$162,990,460		$3,837,000	$42.25	102
2018 Q3	9,259,018	$389,611,304	-$2,907,456			$42.08	85
2018 Q2	9,448,509	$336,936,129	+$336,926,999			$35.66	75