Security key
457730109
Inspire Medical Systems, Inc. - Common Stock, $0.001 par value per share (INSP)
CUSIP: 457730109
Q1 2025 13F Holders as of 31 Mar 2025
- Security type / class
- Equity / Common Stock, $0.001 par value per share
- Total 13F shares
- 34,119,574
- Total 13F value
- $5,429,765,770
- Share change
- +694,185
- Put/Call ratio
- 92%
- SEC-reported price per share
- $159.28
- Number of holders
- 359
- Value change
- +$100,291,872
- Number of buys
- 193
- Number of sells
- 161
- Shares outstanding
- 28,838,196
Holder snapshot
7 signals
Show 1 more signal
Security identity
1 source field
Report period
Q1 2025
Institutions
359
Top holders
10
INSP full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2025
Previous quarter: Q4 2024
Inspire Medical Systems, Inc. SEC filings
Inspire Medical Systems, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 457730109
Recent filing periods:
Ownership snapshot
Top reported holders of INSP - Inspire Medical Systems, Inc. - Common Stock, $0.001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
31 Dec 2024
13F
Lead comparable stake: 15%
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 15%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Comparable ownership
Top 5
BlackRock, Inc.
15%
VANGUARD GROUP INC
11%
FMR LLC
8.7%
WASATCH ADVISORS LP
4.6%
BAILLIE GIFFORD & CO
4.4%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
Company
|
15%
|
$778,843,112
4,201,333 shares
|
— | 31 Dec 2024 |
| VANGUARD GROUP INC |
13F
Company
|
11%
|
$606,258,781
3,270,357 shares
|
— | 31 Dec 2024 |
| FMR LLC |
13F
Company
|
8.7%
|
$467,071,272
2,519,534 shares
|
— | 31 Dec 2024 |
| WASATCH ADVISORS LP |
13F
Company
|
4.6%
|
$245,028,796
1,321,765 shares
|
— | 31 Dec 2024 |
| BAILLIE GIFFORD & CO |
13F
Company
|
4.4%
|
$232,838,207
1,256,005 shares
|
— | 31 Dec 2024 |
| STATE STREET CORP |
13F
Company
|
3.7%
|
$196,900,625
1,062,146 shares
|
— | 31 Dec 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
359
Shares
34,119,574
Rows available
359
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2025 vs Q4 2024 Across Filers
Q4 2024 holders
352
Q1 2025 holders
359
Holder diff
7
| Investor | Q4 2024 Shares | Q1 2025 Shares | Share Diff | Share Chg % | Q4 2024 value | Q1 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend