Inspire Medical Systems, Inc. (INSP) Insider Trading
Over the last 3 months, INSP insiders made 0 open-market buys and 3 sales, a net sale of -$176K (SEC Form 4). Over the last 6 months, 277 institutions increased and 215 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
3
Net (3m)
-$175.9K
Insider trades by month Buys Sells
May
Sep
Nov
Dec
Jan
May
Context3-month price -37.1%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 19, 2026 | Rondoni Johnofficer: See Remarks | Sell | 2,641 | $43.28 |
| May 15, 2026 | Rondoni Johnofficer: See Remarks | Sell | 700 | $43.01 |
| May 11, 2026 | mcCormick Shawndirector | Sell | 696 | $45.31 |
| May 4, 2026 | Tansey Casey Mdirector | Grant | 3,562 | — |
| May 4, 2026 | Curet Myriamdirector | Grant | 3,562 | — |
| May 4, 2026 | Mead Dana G Jr.director | Grant | 3,562 | — |
| May 4, 2026 | Burks Cynthiadirector | Grant | 3,562 | — |
| May 4, 2026 | Melenikiotou Georgiadirector | Tax | 50 | $56.70 |
| May 4, 2026 | Ellis Gary Leedirector | Grant | 3,562 | — |
| May 4, 2026 | mcCormick Shawndirector | Grant | 3,562 | — |
| May 4, 2026 | Melenikiotou Georgiadirector | Grant | 3,562 | — |
| May 4, 2026 | Broader Shelley Gdirector | Grant | 3,562 | — |
| Apr 16, 2026 | Tansey Casey Mdirector | Grant | 308 | $52.07 |
| Apr 16, 2026 | Ellis Gary Leedirector | Grant | 518 | $52.07 |
| Apr 16, 2026 | Melenikiotou Georgiadirector | Grant | 307 | $52.07 |
| Apr 16, 2026 | Broader Shelley Gdirector | Grant | 342 | $52.07 |
| Feb 24, 2026 | Herbert Timothy P.director, officer: CEO and President | Grant | 62,153 | — |
| Feb 24, 2026 | Herbert Timothy P.director, officer: CEO and President | Tax | 4,010 | $59.53 |
| Feb 24, 2026 | Phillips Bryan Kofficer: See Remarks | Grant | 2,400 | — |
| Feb 24, 2026 | Rondoni Johnofficer: See Remarks | Grant | 15,958 | — |
| Feb 24, 2026 | Weatherby Carltonofficer: See Remarks | Tax | 672 | $59.53 |
| Feb 24, 2026 | Phillips Bryan Kofficer: See Remarks | Grant | 8,399 | — |
| Feb 24, 2026 | Mann Melissaofficer: Chief People Officer | Grant | 15,958 | — |
| Feb 24, 2026 | Kelly Jason Pofficer: See Remarks | Grant | 15,958 | — |
| Feb 24, 2026 | Weatherby Carltonofficer: See Remarks | Grant | 12,598 | — |
| Feb 24, 2026 | Weatherby Carltonofficer: See Remarks | Grant | 2,196 | — |
| Feb 24, 2026 | Herbert Timothy P.director, officer: CEO and President | Grant | 9,005 | — |
| Feb 24, 2026 | Phillips Bryan Kofficer: See Remarks | Tax | 735 | $59.53 |
| Feb 24, 2026 | Rondoni Johnofficer: See Remarks | Tax | 735 | $59.53 |
| Feb 24, 2026 | Phillips Bryan Kofficer: See Remarks | Grant | 15,958 | — |
Source: INSP SEC Form 4 filings, latest May 19, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their INSP positions over the last 6 months (SEC Form 13F).
Increased
277
New positions
118
Reduced
215
Sold out
158
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 3.6M | Feb 12, 2026 |
| BLACKROCK, INC. | Reduced | 3.5M | May 13, 2026 |
| VANGUARD GROUP INC | Reduced | 3.0M | Jan 29, 2026 |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | Increased | 2.7M | May 15, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 2.5M | May 15, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | New Position | 2.2M | Feb 17, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 1.6M | May 8, 2026 |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | Increased | 1.5M | Feb 17, 2026 |
| MORGAN STANLEY | Increased | 1.5M | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 1.3M | May 15, 2026 |
| MORGAN STANLEY | Increased | 1.3M | Feb 13, 2026 |
| D. E. SHAW & CO., INC. | Increased | 1.2M | Feb 17, 2026 |
| D. E. SHAW & CO., INC. | Reduced | 1.2M | May 15, 2026 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Reduced | 1.2M | Feb 9, 2026 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Reduced | 1.1M | May 8, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.