Inspire Medical Systems (INSP)
Uses hypoglossal-nerve stimulation to treat obstructive sleep apnea.
$71.87
After hours+0.62 (+0.87%)
At close$71.25(−5.90%)
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13F · 13D/G · Form 4
| Institutions | 128.96% | 37.28M shares | |
|---|---|---|---|
| 285 holders · as of Jun 30, 2026 | |||
| Insiders | 6.43% | 1.86M shares | |
| 19 holders · as of Sep 2, 2026 | |||
| Adds to | 135.39% | ||
28.91M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
These groups come from separate filings that can overlap, so they add to 135.39%; nothing is left for Other.
13F, as of Jun 30, 2026
285 holders · 37.28M shares · 72 new positions · 171 increased · 76 reduced · 94 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 4.74M | 16.39% | +1.19M | Aug 7, 2026 |
| Wellington Management Group LLP | 2.38M | 8.24% | −153.3K | Aug 14, 2026 |
| Vanguard Portfolio Management LLC | 2.09M | 7.23% | +451.8K | Aug 13, 2026 |
| Soleus Capital Management, L.P. | 1.93M | 6.68% | +1.36M | Aug 11, 2026 |
| AQR Capital Management LLC | 1.86M | 6.42% | +1.55M | Aug 14, 2026 |
| UBS Group AG | 1.65M | 5.69% | +1.01M | Aug 13, 2026 |
| D. E. Shaw & Co., Inc. | 1.47M | 5.09% | +281.9K | Aug 14, 2026 |
| Nomura Holdings Inc | 1.37M | 4.74% | +1.37M | Aug 14, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 11.30% | 3.35M | 13G | Oct 17, 2025 |
| Wellington Management Group LLP | 8.80% | 2.54M | 13G | May 15, 2026 |
| AQR Capital Management, LLC | 6.44% | 1.86M | 13G | Aug 12, 2026 |
| Vanguard Portfolio Management | 5.71% | 1.64M | 13G | Apr 29, 2026 |
| D. E. Shaw & Co., L.P. | 5.10% | 1.48M | 13G | Jul 2, 2026 |
| Soleus Capital Master Fund, L.P. | 5.10% | 1.47M | 13G | May 27, 2026 |
| Vanguard Capital Management | 5.10% | 1.47M | 13G | Apr 30, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 7, 2026 | Jason P. Kellyofficer: See Remarks | Sale | 963 | $59.55 | 18,985 |
| May 15, 2026 | John Rondoniofficer: See Remarks | Sale | 2,641 | $43.28 | 27,165 |
| May 14, 2026 | John Rondoniofficer: See Remarks | Sale | 700 | $43.01 | 29,806 |
| May 8, 2026 | Shawn mcCormickdirector | Sale | 696 | $45.31 | 27,712 |
| Jan 9, 2026 | John Rondoniofficer: See Remarks | Sale | 109 | $100.00 | 13,797 |
| Dec 2, 2025 | Shawn mcCormickdirector | Sale | 1,200 | $139.00 | 24,846 |
| Nov 28, 2025 | Shawn mcCormickdirector | Sale | 2,000 | $127.48 | 26,046 |
| Aug 8, 2025 | Myriam Curetdirector | Sale | 4 | $77.28 | 3,365 |
| May 8, 2025 | Myriam Curetdirector | Sale | 2 | $153.22 | 3,369 |
| Mar 20, 2025 | Myriam Curetdirector | Purchase | 4 | $163.84 | 3,370 |
House and Senate disclosures
Not reported.