Security key
457730109
Inspire Medical Systems, Inc. - Common Stock (INSP)
CUSIP: 457730109
Q4 2025 13F Holders as of 31 Dec 2025
- Type / Class
- Equity / Common Stock
- Shares outstanding
- 28,817,659
- Total 13F shares
- 33,885,583
- Share change
- +2,857,618
- Total reported value
- $3,125,013,462
- Put/Call ratio
- 108%
- Price per share
- $92.23
- Number of holders
- 342
- Value change
- +$310,804,814
- Number of buys
- 192
- Number of sells
- 181
Report period
Q4 2025
Institutions
342
Top holders
10
INSP full security history
Newer quarter: Q1 2026
Previous quarter: Q3 2025
Inspire Medical Systems, Inc. SEC filings
Inspire Medical Systems, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 457730109
Recent filing periods:
Top shareholders of INSP - Inspire Medical Systems, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
|
Company |
11%
from 13D/G
|
3,547,195
|
$263,201,869 | — | 30 Sep 2025 | |
| FMR LLC |
13F
13D/G
|
Company |
2.5%
from 13D/G
|
749,312
|
$55,598,958 | — | 30 Sep 2025 | |
| CITADEL ADVISORS LLC |
13F
13D/G
|
Company · Kenneth Griffin |
1.8%
from 13D/G
|
1,748,409
|
$129,731,948 | — | 30 Sep 2025 | |
| WASATCH ADVISORS LP |
13F
13D/G
|
Company |
0.5%
from 13D/G
|
135,914
|
$10,084,819 | — | 30 Sep 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
10%
|
3,000,087
|
$222,606,456 | — | 30 Sep 2025 | |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC |
13F
|
Company |
4.5%
|
1,297,573
|
$96,279,917 | — | 30 Sep 2025 | |
| BAILLIE GIFFORD & CO |
13F
|
Company |
3.8%
|
1,084,350
|
$80,458,771 | — | 30 Sep 2025 | |
| DEERFIELD MANAGEMENT COMPANY, L.P. |
13F
|
Company |
3.6%
|
1,047,694
|
$77,738,895 | — | 30 Sep 2025 | |
| STATE STREET CORP |
13F
|
Company |
3.4%
|
979,309
|
$72,664,728 | — | 30 Sep 2025 | |
| BRAIDWELL LP |
13F
|
Company |
3.1%
|
883,747
|
$65,574,027 | — | 30 Sep 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
2.9%
|
833,599
|
$61,853,047 | — | 30 Sep 2025 | |
| Soleus Capital Management, L.P. |
13F
|
Company |
2.5%
|
728,188
|
$54,031,550 | — | 30 Sep 2025 | |
| JANUS HENDERSON GROUP PLC |
13F
|
Company |
2.3%
|
667,078
|
$49,496,529 | — | 30 Sep 2025 | |
| BALYASNY ASSET MANAGEMENT L.P. |
13F
|
Company |
2.1%
|
614,359
|
$45,585,438 | — | 30 Sep 2025 | |
| Artisan Partners Limited Partnership |
13F
|
Company |
1.8%
|
526,242
|
$39,047,156 | — | 30 Sep 2025 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
1.8%
|
522,180
|
$38,745,756 | — | 30 Sep 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.8%
|
504,987
|
$37,476,743 | — | 30 Sep 2025 | |
| UBS Group AG |
13F
|
Company |
1.6%
|
467,736
|
$34,706,011 | — | 30 Sep 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1.6%
|
450,641
|
$33,437,643 | — | 30 Sep 2025 | |
| Champlain Investment Partners, LLC |
13F
|
Company |
1.4%
|
407,059
|
$30,203,778 | — | 30 Sep 2025 | |
| Aberdeen Group plc |
13F
|
Company |
1.4%
|
396,340
|
$29,967,267 | — | 30 Sep 2025 | |
| D. E. Shaw & Co., Inc. |
13F
|
Company |
1.2%
|
358,857
|
$26,627,189 | — | 30 Sep 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
1.2%
|
356,808
|
$26,475,154 | — | 30 Sep 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.2%
|
343,718
|
$25,506,313 | — | 30 Sep 2025 | |
| FRANKLIN RESOURCES INC |
13F
|
Company |
1%
|
297,245
|
$22,055,613 | — | 30 Sep 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
1%
|
288,828
|
$21,431,039 | — | 30 Sep 2025 | |
| BROWN CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.96%
|
278,040
|
$20,630,568 | — | 30 Sep 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.91%
|
263,224
|
$19,531,221 | — | 30 Sep 2025 | |
| EVENTIDE ASSET MANAGEMENT, LLC |
13F
|
Company |
0.89%
|
256,658
|
$19,044,024 | — | 30 Sep 2025 | |
| Amundi |
13F
|
Individual |
0.89%
|
255,124
|
$19,483,820 | — | 30 Sep 2025 | |
| KEYBANK NATIONAL ASSOCIATION/OH |
13F
|
Company |
0.69%
|
200,005
|
$14,840,371 | — | 30 Sep 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.67%
|
193,134
|
$14,330,543 | — | 30 Sep 2025 | |
| BAMCO INC /NY/ |
13F
|
Company |
0.66%
|
190,023
|
$14,099,707 | — | 30 Sep 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.66%
|
189,764
|
$14,080,488 | — | 30 Sep 2025 | |
| Atika Capital Management LLC |
13F
|
Company |
0.65%
|
187,600
|
$13,919,920 | — | 30 Sep 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.58%
|
166,876
|
$12,382,233 | — | 30 Sep 2025 | |
| FRONTIER CAPITAL MANAGEMENT CO LLC |
13F
|
Company |
0.56%
|
162,295
|
$12,042,264 | — | 30 Sep 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
0.54%
|
155,000
|
$11,501,000 | — | 30 Sep 2025 | |
| M&G Plc |
13F
|
Company |
0.5%
|
144,960
|
$10,727,040 | — | 30 Sep 2025 | |
| Connor, Clark & Lunn Investment Management Ltd. |
13F
|
Company |
0.48%
|
139,317
|
$10,337,321 | — | 30 Sep 2025 | |
| CAPSTONE INVESTMENT ADVISORS, LLC |
13F
|
Company |
0.47%
|
136,807
|
$10,151,079 | — | 30 Sep 2025 | |
| Vestal Point Capital, LP |
13F
|
Company |
0.47%
|
135,000
|
$10,017,000 | — | 30 Sep 2025 | |
| MARSHALL WACE, LLP |
13F
|
Company |
0.47%
|
134,269
|
$9,962,759 | — | 30 Sep 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.45%
|
128,984
|
$9,570,613 | — | 30 Sep 2025 | |
| Walleye Capital LLC |
13F
|
Company |
0.45%
|
128,613
|
$9,543,085 | — | 30 Sep 2025 | |
| CREDIT AGRICOLE S A |
13F
|
Individual |
0.43%
|
125,255
|
$9,293,921 | — | 30 Sep 2025 | |
| Integral Health Asset Management, LLC |
13F
|
Company |
0.42%
|
120,000
|
$8,904,000 | — | 30 Sep 2025 | |
| RA CAPITAL MANAGEMENT, L.P. |
13F
|
Company |
0.4%
|
114,901
|
$8,525,654 | — | 30 Sep 2025 | |
| Rock Springs Capital Management LP |
13F
|
Company |
0.38%
|
110,500
|
$8,199,100 | — | 30 Sep 2025 | |
| WCM INVESTMENT MANAGEMENT, LLC |
13F
|
Company |
0.37%
|
107,032
|
$8,092,690 | — | 30 Sep 2025 |
Institutional Holders of Inspire Medical Systems, Inc. - Common Stock (INSP) as of Q4 2025
As of 31 Dec 2025,
Inspire Medical Systems, Inc. - Common Stock (INSP) was held by
342 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
33,885,583 shares.
The largest 10 holders included
BlackRock, Inc., VANGUARD GROUP INC, WELLINGTON MANAGEMENT GROUP LLP, DEERFIELD MANAGEMENT COMPANY, L.P., MORGAN STANLEY, D. E. Shaw & Co., Inc., WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC, STATE STREET CORP, Artisan Partners Limited Partnership, and FULLER & THALER ASSET MANAGEMENT, INC..
This page lists
342
institutional shareholders reporting positions in this security
for the Q4 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
323
Q4 2025 holders
342
Holder diff
19
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 Value $ | Q4 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.