Security record · archived quarter
INSP
Inspire Medical Systems, Inc. · Healthcare · Medical - Devices
110Tracked holders
0Δ holders
24.43MShares held
$2.25BReported value
+3New positions
−2Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +6.5% · net new positions +0.9% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 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 · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 3.55M | +0.1% | $327.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 2.95M | -1.6% | $272.37M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 21 | The Vanguard Group ✦ (passive) | 2.95M | -1.6% | $272.37M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 22 | The Vanguard Group ✦ (passive) | 2.95M | -1.6% | $272.37M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 23 | The Vanguard Group ✦ (passive) | 2.95M | -1.6% | $272.37M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 24 | The Vanguard Group ✦ (passive) | 2.95M | -1.6% | $272.37M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 25 | Wellington Management ✦ | 2.21M | New | $203.93M | 0.0% | New | 1 | SEC ↗ |
| 26 | Wellington Management ✦ | 2.21M | New | $203.93M | 0.0% | New | 1 | SEC ↗ |
| 27 | Wellington Management ✦ | 2.21M | New | $203.93M | 0.0% | New | 1 | SEC ↗ |
| 28 | Wellington Management ✦ | 2.21M | New | $203.93M | 0.0% | New | 1 | SEC ↗ |
| 29 | Wellington Management ✦ | 2.21M | New | $203.93M | 0.0% | New | 1 | SEC ↗ |
| 30 | Morgan Stanley ✦ | 1.26M | +179.6% | $116.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 31 | Morgan Stanley ✦ | 1.26M | +179.6% | $116.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 32 | Morgan Stanley ✦ | 1.26M | +179.6% | $116.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 33 | Morgan Stanley ✦ | 1.26M | +179.6% | $116.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 34 | Morgan Stanley ✦ | 1.26M | +179.6% | $116.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 35 | Morgan Stanley ✦ | 1.26M | +179.6% | $116.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 36 | Morgan Stanley ✦ | 1.26M | +179.6% | $116.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 37 | Morgan Stanley ✦ | 1.26M | +179.6% | $116.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 38 | Morgan Stanley ✦ | 1.26M | +179.6% | $116.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 39 | Morgan Stanley ✦ | 1.26M | +179.6% | $116.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 40 | D. E. Shaw & Co. ✦ | 1.21M | +237.8% | $111.80M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 41 | D. E. Shaw & Co. ✦ | 1.21M | +237.8% | $111.80M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 42 | State Street Global Advisors ✦ (passive) | 918.50K | -6.2% | $84.71M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 43 | Artisan Partners Limited Partnership | 785.74K | — | $72.47M | 0.1% | n/c | 1 | SEC ↗ |
| 44 | Janus Henderson Group Plc | 562.33K | — | $51.86M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Janus Henderson Group Plc | 562.33K | — | $51.86M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Marshall Wace ✦ | 531.08K | +295.5% | $48.98M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 47 | Marshall Wace ✦ | 531.08K | +295.5% | $48.98M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 48 | Marshall Wace ✦ | 531.08K | +295.5% | $48.98M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 49 | Deutsche Bank Ag\ | 516.82K | — | $47.67M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Deutsche Bank Ag\ | 516.82K | — | $47.67M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Deutsche Bank Ag\ | 516.82K | — | $47.67M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Citadel Advisors ✦ | 511.32K | -70.8% | $47.16M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 53 | Citadel Advisors ✦ | 511.32K | -70.8% | $47.16M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 54 | Geode Capital Management ✦ (passive) | 491.75K | -2.6% | $45.36M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 55 | Geode Capital Management ✦ (passive) | 491.75K | -2.6% | $45.36M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 56 | UBS AM, a distinct business unit of… | 463.32K | — | $42.73M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | UBS AM, a distinct business unit of… | 463.32K | — | $42.73M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | UBS AM, a distinct business unit of… | 463.32K | — | $42.73M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | UBS AM, a distinct business unit of… | 463.32K | — | $42.73M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | UBS AM, a distinct business unit of… | 463.32K | — | $42.73M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | UBS AM, a distinct business unit of… | 463.32K | — | $42.73M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | UBS AM, a distinct business unit of… | 463.32K | — | $42.73M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | UBS AM, a distinct business unit of… | 463.32K | — | $42.73M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | UBS AM, a distinct business unit of… | 463.32K | — | $42.73M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | UBS AM, a distinct business unit of… | 463.32K | — | $42.73M | 0.0% | n/c | 1 | SEC ↗ |
| 66 | Aberdeen Group plc | 460.90K | — | $42.51M | 0.1% | n/c | 1 | SEC ↗ |
| 67 | Bnp Paribas Financial Markets | 454.81K | — | $41.95M | 0.0% | n/c | 1 | SEC ↗ |
| 68 | UBS Group AG | 411.33K | — | $37.94M | 0.0% | n/c | 1 | SEC ↗ |
| 69 | UBS Group AG | 411.33K | — | $37.94M | 0.0% | n/c | 1 | SEC ↗ |
| 70 | UBS Group AG | 411.33K | — | $37.94M | 0.0% | n/c | 1 | SEC ↗ |
| 71 | UBS Group AG | 411.33K | — | $37.94M | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Renaissance Technologies ✦ | 410.77K | +165.0% | $37.89M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 73 | Amundi | 364.62K | — | $33.63M | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Dimensional Fund Advisors Lp | 341.40K | — | $31.49M | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Dimensional Fund Advisors Lp | 341.40K | — | $31.49M | 0.0% | n/c | 1 | SEC ↗ |
| 76 | Dimensional Fund Advisors Lp | 341.40K | — | $31.49M | 0.0% | n/c | 1 | SEC ↗ |
| 77 | Dimensional Fund Advisors Lp | 341.40K | — | $31.49M | 0.0% | n/c | 1 | SEC ↗ |
| 78 | Dimensional Fund Advisors Lp | 341.40K | — | $31.49M | 0.0% | n/c | 1 | SEC ↗ |
| 79 | Bamco Inc /Ny/ | 337.49K | — | $31.13M | 0.1% | n/c | 1 | SEC ↗ |
| 80 | T. Rowe Price ✦ | 308.17K | +1136.2% | $28.42M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 81 | T. Rowe Price ✦ | 308.17K | +1136.2% | $28.42M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 82 | Goldman Sachs Group ✦ | 284.88K | +8.2% | $26.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 83 | Goldman Sachs Group ✦ | 284.88K | +8.2% | $26.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 84 | Jane Street Group, Llc | 277.20K | — | $25.57M | 0.0% | n/c | 1 | SEC ↗ |
| 85 | Jane Street Group, Llc | 277.20K | — | $25.57M | 0.0% | n/c | 1 | SEC ↗ |
| 86 | Jane Street Group, Llc | 277.20K | — | $25.57M | 0.0% | n/c | 1 | SEC ↗ |
| 87 | Assenagon Asset Management S.A. | 265.00K | — | $24.44M | 0.0% | n/c | 1 | SEC ↗ |
| 88 | Invesco Ltd. | 261.37K | — | $24.11M | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Invesco Ltd. | 261.37K | — | $24.11M | 0.0% | n/c | 1 | SEC ↗ |
| 90 | Invesco Ltd. | 261.37K | — | $24.11M | 0.0% | n/c | 1 | SEC ↗ |
| 91 | Invesco Ltd. | 261.37K | — | $24.11M | 0.0% | n/c | 1 | SEC ↗ |
| 92 | Invesco Ltd. | 261.37K | — | $24.11M | 0.0% | n/c | 1 | SEC ↗ |
| 93 | Invesco Ltd. | 261.37K | — | $24.11M | 0.0% | n/c | 1 | SEC ↗ |
| 94 | Invesco Ltd. | 261.37K | — | $24.11M | 0.0% | n/c | 1 | SEC ↗ |
| 95 | Invesco Ltd. | 261.37K | — | $24.11M | 0.0% | n/c | 1 | SEC ↗ |
| 96 | Invesco Ltd. | 261.37K | — | $24.11M | 0.0% | n/c | 1 | SEC ↗ |
| 97 | Invesco Ltd. | 261.37K | — | $24.11M | 0.0% | n/c | 1 | SEC ↗ |
| 98 | Invesco Ltd. | 261.37K | — | $24.11M | 0.0% | n/c | 1 | SEC ↗ |
| 99 | Franklin Resources Inc | 231.44K | — | $21.35M | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Franklin Resources Inc | 231.44K | — | $21.35M | 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
| Wellington Management | $203.93M | 0.0% |
| Wellington Management | $203.93M | 0.0% |
| Wellington Management | $203.93M | 0.0% |
| Wellington Management | $203.93M | 0.0% |
| Wellington Management | $203.93M | 0.0% |
Exited
| Baillie Gifford | $80.46M | was 0.1% |
| Point72 Asset Management | $6.82M | 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: Q4 2025 ·
Methodology ·
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