INSP
Inspire Medical Systems, Inc. · Healthcare · Medical - Devices
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 98 | -1 | 27.79M | $1.24B | +14 | −15 |
| Q1 2026 | 102 | -7 | 22.50M | $1.16B | +11 | −19 |
| Q4 2025 | 110 | 0 | 24.43M | $2.25B | +3 | −2 |
| Q3 2025 | 20 | +2 | 13.81M | $1.03B | +2 | −1 |
| Q2 2025 | 16 | -1 | 12.85M | $1.67B | +1 | −2 |
| Q1 2025 | 14 | -1 | 3.76M | $597.97M | — | −1 |
| Q4 2024 | 15 | -2 | 4.14M | $766.98M | — | −2 |
| Q3 2024 | 16 | +1 | 4.78M | $1.01B | +1 | — |
| Q2 2024 | 15 | — | 5.10M | $682.73M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Wellington Management ✦ | 1.98M | — | $264.32M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 2 | Baillie Gifford ✦ | 1.43M | — | $190.95M | 0.1% | n/c | 1 | SEC ↗ ×4 |
| 3 | Geode Capital Management ✦ (passive) | 480.53K | — | $64.33M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 4 | T. Rowe Price ✦ | 364.87K | — | $48.83M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 5 | Norges Bank ✦ (passive) | 277.97K | — | $37.20M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | AQR Capital Management ✦ | 231.84K | — | $31.03M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 7 | Adage Capital Partners ✦ | 85.00K | — | $11.38M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | Renaissance Technologies ✦ | 73.60K | — | $9.85M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | Marshall Wace ✦ | 40.47K | — | $5.42M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | Millennium Management ✦ | 32.33K | — | $4.33M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | Citadel Advisors ✦ | 31.65K | — | $4.24M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 12 | Point72 Asset Management ✦ | 30.29K | — | $4.05M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | D. E. Shaw & Co. ✦ | 23.28K | — | $3.12M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 14 | Two Sigma Investments ✦ | 22.30K | — | $2.98M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | Bridgewater Associates ✦ | 5.29K | — | $708,228 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 298 holders, 34.81M shares, $1.75B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer · 963 sh · $57,347
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology