Security record · archived quarter
INSP
Inspire Medical Systems, Inc. · Healthcare · Medical - Devices
20Tracked holders
+2Δ holders
13.81MShares held
$1.03BReported value
+2New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth +11.1% ·
share flow +2.5% ·
net new positions +5.0%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 99 | -1 | 27.80M | $1.24B | +14 | −14 |
| 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 | — | — |
Who holds it · Q3 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 3.55M | -8.4% | $263.20M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 3.00M | -6.3% | $222.61M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 3.00M | -6.3% | $222.61M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 21 | The Vanguard Group ✦ (passive) | 3.00M | -6.3% | $222.61M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 22 | The Vanguard Group ✦ (passive) | 3.00M | -6.3% | $222.61M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 23 | The Vanguard Group ✦ (passive) | 3.00M | -6.3% | $222.61M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 24 | Citadel Advisors ✦ | 1.75M | +20054.6% | $129.73M | 0.1% | ▲ Add | 6 | SEC ↗ |
| 25 | Citadel Advisors ✦ | 1.75M | +20054.6% | $129.73M | 0.1% | ▲ Add | 6 | SEC ↗ |
| 26 | Baillie Gifford ✦ | 1.08M | -2.6% | $80.46M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 27 | Baillie Gifford ✦ | 1.08M | -2.6% | $80.46M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 28 | Baillie Gifford ✦ | 1.08M | -2.6% | $80.46M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 29 | Baillie Gifford ✦ | 1.08M | -2.6% | $80.46M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 30 | State Street Global Advisors ✦ (passive) | 979.31K | -5.0% | $72.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 31 | Fidelity (FMR) ✦ | 749.31K | -67.2% | $55.60M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 32 | Fidelity (FMR) ✦ | 749.31K | -67.2% | $55.60M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 33 | Fidelity (FMR) ✦ | 749.31K | -67.2% | $55.60M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 34 | Fidelity (FMR) ✦ | 749.31K | -67.2% | $55.60M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 35 | Geode Capital Management ✦ (passive) | 504.99K | -1.5% | $37.48M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 36 | Geode Capital Management ✦ (passive) | 504.99K | -1.5% | $37.48M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 37 | Morgan Stanley ✦ | 450.64K | — | $33.44M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Morgan Stanley ✦ | 450.64K | — | $33.44M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Morgan Stanley ✦ | 450.64K | — | $33.44M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Morgan Stanley ✦ | 450.64K | — | $33.44M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Morgan Stanley ✦ | 450.64K | — | $33.44M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Morgan Stanley ✦ | 450.64K | — | $33.44M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Morgan Stanley ✦ | 450.64K | — | $33.44M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Morgan Stanley ✦ | 450.64K | — | $33.44M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Morgan Stanley ✦ | 450.64K | — | $33.44M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Morgan Stanley ✦ | 450.64K | — | $33.44M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | D. E. Shaw & Co. ✦ | 358.86K | +2423.2% | $26.63M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 48 | D. E. Shaw & Co. ✦ | 358.86K | +2423.2% | $26.63M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 49 | Millennium Management ✦ | 356.81K | New | $26.48M | 0.0% | New | 1 | SEC ↗ |
| 50 | Goldman Sachs Group ✦ | 263.22K | — | $19.53M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Goldman Sachs Group ✦ | 263.22K | — | $19.53M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 66 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 67 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 68 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 69 | JPMorgan Chase ✦ | 160.75K | — | $11.93M | 0.0% | n/c | 1 | SEC ↗ |
| 70 | Renaissance Technologies ✦ | 155.00K | +22.2% | $11.50M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 71 | Marshall Wace ✦ | 134.27K | +744.2% | $9.96M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 72 | Marshall Wace ✦ | 134.27K | +744.2% | $9.96M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 73 | Marshall Wace ✦ | 134.27K | +744.2% | $9.96M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 74 | Point72 Asset Management ✦ | 91.90K | +21.9% | $6.82M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 75 | Bridgewater Associates ✦ | 88.95K | -37.2% | $6.60M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 76 | AQR Capital Management ✦ | 49.42K | -59.3% | $3.67M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 77 | AQR Capital Management ✦ | 49.42K | -59.3% | $3.67M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 78 | Two Sigma Investments ✦ | 37.15K | +92.0% | $2.76M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 79 | Gotham Asset Management ✦ | 29.09K | New | $2.16M | 0.0% | New | 1 | SEC ↗ |
| 80 | T. Rowe Price ✦ | 24.93K | -60.8% | $1.85M | 0.0% | ▼ Trim | 6 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Millennium Management | $26.48M | 0.0% |
| Gotham Asset Management | $2.16M | 0.0% |
Exited
| Norges Bank | $31.07M | was 0.0% |
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.
Frequently co-owned
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)
Aug 07
Kelly Jason P
Officer · 963 sh · $57,347
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 13
SC 13G/A — Soleus Capital Master Fund, L.P.
Aug 12
SC 13G — AQR CAPITAL MANAGEMENT LLC
Jul 31
SC 13G/A — VANGUARD PORTFOLIO MANAGEMENT LLC
Jul 28
SC 13G/A — BlackRock, Inc.
Jul 02
SC 13G — D. E. SHAW & CO, L.P.
May 27
SC 13G — Soleus Capital Master Fund, L.P.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q3 2025 ·
Methodology ·
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