Inspire Medical Systems Inc
Ownership
Ownership Structure
Who owns Inspire Medical Systems Inc (INSP)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 80.5% of the shares are freely tradable; institutional investors hold 122.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 16.39 | 4,737,519 | +33.5 | 06/30/2026 |
| Wellington Management Company LLP | 8.24 | 2,382,660 | -6.0 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 7.23 | 2,088,961 | +27.6 | 06/30/2026 |
| Soleus Capital Management, L.P. | 6.68 | 1,931,436 | +235.1 | 06/30/2026 |
| AQR Capital Management LLC | 6.42 | 1,856,800 | +501.6 | 06/30/2026 |
| Assenagon Asset Management SA | 5.98 | 1,728,790 | +232.3 | 06/30/2026 |
| UBS Group AG | 5.69 | 1,645,511 | +157.5 | 06/30/2026 |
| D. E. Shaw & Co LP | 5.09 | 1,470,462 | +23.7 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Health Care Inv | 7.24 | 2,093,826 | +0.0 | 06/30/2026 |
| iShares Core S&P Small-Cap ETF | 5.95 | 1,720,772 | +0.0 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Tansey Casey M | Director | 26,632 | 1,813,639 $ | Jul 15, 2026 | direct |
| Kelly Jason P | See Remarks | 25,335 | 1,725,313 $ | Aug 31, 2026 | direct |
| Mann Melissa | Chief People Officer | 22,957 | 1,563,372 $ | Jul 31, 2026 | direct |
| Ellis Gary Lee | Director | 11,850 | 806,985 $ | Oct 14, 2026 | direct |
| Broader Shelley G | Director | 9,138 | 622,298 $ | Oct 14, 2026 | direct |
| Melenikiotou Georgia | Director | 8,584 | 584,570 $ | Oct 14, 2026 | direct |
| Carrel Michael H | Director | 5,834 | 397,295 $ | Oct 14, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 14, 2026 | Ellis Gary Lee | Director | Other | 431 | 68.07 | 29,338 |
| Oct 14, 2026 | Melenikiotou Georgia | Director | Other | 255 | 68.07 | 17,358 |
| Oct 14, 2026 | Carrel Michael H | Director | Other | 203 | 68.07 | 13,818 |
| Oct 14, 2026 | Broader Shelley G | Director | Other | 284 | 68.07 | 19,332 |
| Aug 31, 2026 | Kelly Jason P | See Remarks | Other | 6,350 | 0.00 | – |
| Aug 7, 2026 | Kelly Jason P | See Remarks | Sell | 963 | 59.55 | 57,347 |
| Jul 31, 2026 | Mann Melissa | Chief People Officer | Other | 326 | 50.21 | 16,368 |
| Jul 20, 2026 | Carrel Michael H | Director | Other | 5,631 | 0.00 | – |
| Jul 15, 2026 | Melenikiotou Georgia | Director | Other | 344 | 0.00 | – |
| Jul 15, 2026 | Tansey Casey M | Director | Other | 346 | 0.00 | – |
| Jul 15, 2026 | Ellis Gary Lee | Director | Other | 581 | 0.00 | – |
| Jul 15, 2026 | Broader Shelley G | Director | Other | 383 | 0.00 | – |
| Jul 31, 2025 | Mann Melissa | Chief People Officer | Other | 326 | 124.54 | 40,600 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.