Security record · archived quarter
GKOS
Glaukos Corporation · Healthcare · Medical - Devices
22Tracked holders
+5Δ holders
29.69MShares held
$2.42BReported value
+5New positions
−1Exits
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 | 125 | +9 | 42.85M | $5.95B | +15 | −5 |
| Q1 2026 | 118 | -1 | 46.55M | $5.02B | +6 | −8 |
| Q4 2025 | 118 | 0 | 48.22M | $5.44B | +2 | −1 |
| Q3 2025 | 22 | +5 | 29.69M | $2.42B | +5 | −1 |
| Q2 2025 | 15 | -2 | 32.65M | $3.37B | +1 | −3 |
| Q1 2025 | 14 | -2 | 8.81M | $867.57M | +1 | −3 |
| Q4 2024 | 16 | -1 | 9.74M | $1.46B | — | −1 |
| Q3 2024 | 16 | 0 | 7.06M | $919.99M | +1 | −1 |
| Q2 2024 | 16 | — | 6.75M | $798.69M | — | — |
Who holds it · Q3 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 8.66M | -0.8% | $705.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 16 | The Vanguard Group ✦ (passive) | 6.05M | -1.1% | $493.09M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 6.05M | -1.1% | $493.09M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 6.05M | -1.1% | $493.09M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 6.05M | -1.1% | $493.09M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 6.05M | -1.1% | $493.09M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 21 | Wellington Management ✦ | 3.58M | +10.4% | $292.00M | 0.1% | ▲ Add | 6 | SEC ↗ |
| 22 | Wellington Management ✦ | 3.58M | +10.4% | $292.00M | 0.1% | ▲ Add | 6 | SEC ↗ |
| 23 | Wellington Management ✦ | 3.58M | +10.4% | $292.00M | 0.1% | ▲ Add | 6 | SEC ↗ |
| 24 | Wellington Management ✦ | 3.58M | +10.4% | $292.00M | 0.1% | ▲ Add | 6 | SEC ↗ |
| 25 | Wellington Management ✦ | 3.58M | +10.4% | $292.00M | 0.1% | ▲ Add | 6 | SEC ↗ |
| 26 | PRIMECAP Management ✦ | 2.25M | +23.3% | $183.80M | 0.1% | ▲ Add | 6 | SEC ↗ |
| 27 | State Street Global Advisors ✦ (passive) | 2.10M | +0.7% | $171.61M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 28 | JPMorgan Chase ✦ | 1.34M | — | $109.29M | 0.0% | n/c | 1 | SEC ↗ |
| 29 | JPMorgan Chase ✦ | 1.34M | — | $109.29M | 0.0% | n/c | 1 | SEC ↗ |
| 30 | JPMorgan Chase ✦ | 1.34M | — | $109.29M | 0.0% | n/c | 1 | SEC ↗ |
| 31 | JPMorgan Chase ✦ | 1.34M | — | $109.29M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | JPMorgan Chase ✦ | 1.34M | — | $109.29M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | JPMorgan Chase ✦ | 1.34M | — | $109.29M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | JPMorgan Chase ✦ | 1.34M | — | $109.29M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | JPMorgan Chase ✦ | 1.34M | — | $109.29M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | JPMorgan Chase ✦ | 1.34M | — | $109.29M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | JPMorgan Chase ✦ | 1.34M | — | $109.29M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | JPMorgan Chase ✦ | 1.34M | — | $109.29M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | JPMorgan Chase ✦ | 1.34M | — | $109.29M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | JPMorgan Chase ✦ | 1.34M | — | $109.29M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | JPMorgan Chase ✦ | 1.34M | — | $109.29M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Geode Capital Management ✦ (passive) | 1.32M | -1.1% | $107.34M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 43 | Geode Capital Management ✦ (passive) | 1.32M | -1.1% | $107.34M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 44 | Millennium Management ✦ | 913.41K | New | $74.49M | 0.1% | New | 1 | SEC ↗ |
| 45 | Capital World Investors ✦ | 850.89K | 0.0% | $69.39M | 0.0% | Held | 6 | SEC ↗ |
| 46 | Point72 Asset Management ✦ | 690.72K | -4.0% | $56.33M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 47 | Goldman Sachs Group ✦ | 436.97K | — | $35.63M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Goldman Sachs Group ✦ | 436.97K | — | $35.63M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Goldman Sachs Group ✦ | 436.97K | — | $35.63M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Morgan Stanley ✦ | 429.58K | — | $35.03M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Morgan Stanley ✦ | 429.58K | — | $35.03M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Morgan Stanley ✦ | 429.58K | — | $35.03M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Morgan Stanley ✦ | 429.58K | — | $35.03M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Morgan Stanley ✦ | 429.58K | — | $35.03M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Morgan Stanley ✦ | 429.58K | — | $35.03M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Morgan Stanley ✦ | 429.58K | — | $35.03M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Morgan Stanley ✦ | 429.58K | — | $35.03M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Morgan Stanley ✦ | 429.58K | — | $35.03M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Morgan Stanley ✦ | 429.58K | — | $35.03M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Morgan Stanley ✦ | 429.58K | — | $35.03M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | Marshall Wace ✦ | 324.53K | +40.7% | $26.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 62 | Marshall Wace ✦ | 324.53K | +40.7% | $26.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 63 | D. E. Shaw & Co. ✦ | 278.44K | New | $22.71M | 0.0% | New | 1 | SEC ↗ |
| 64 | Fidelity (FMR) ✦ | 121.41K | -98.1% | $9.90M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 65 | Fidelity (FMR) ✦ | 121.41K | -98.1% | $9.90M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 66 | Fidelity (FMR) ✦ | 121.41K | -98.1% | $9.90M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 67 | T. Rowe Price ✦ | 116.91K | +8.7% | $9.53M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 68 | T. Rowe Price ✦ | 116.91K | +8.7% | $9.53M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 69 | Two Sigma Investments ✦ | 66.94K | New | $5.46M | 0.0% | New | 1 | SEC ↗ |
| 70 | Renaissance Technologies ✦ | 57.89K | New | $4.72M | 0.0% | New | 1 | SEC ↗ |
| 71 | Citadel Advisors ✦ | 55.94K | -82.5% | $4.56M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 72 | Adage Capital Partners ✦ | 28.58K | New | $2.33M | 0.0% | New | 1 | SEC ↗ |
| 73 | AQR Capital Management ✦ | 10.32K | +62.7% | $841,343 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 74 | AQR Capital Management ✦ | 10.32K | +62.7% | $841,343 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 75 | GAMCO Investors ✦ | 8.10K | +1.2% | $660,555 | 0.0% | ▲ Add | 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 | $74.49M | 0.1% |
| D. E. Shaw & Co. | $22.71M | 0.0% |
| Two Sigma Investments | $5.46M | 0.0% |
| Renaissance Technologies | $4.72M | 0.0% |
| Adage Capital Partners | $2.33M | 0.0% |
Exited
| Norges Bank | $76.31M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 333 holders, 57.55M shares, $6.09B 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 19
Kliman Gilbert H
Director · 2.50K sh · $475,000
Aug 11
Gilliam Joseph E
Officer · 27.96K sh · $5.00M
Aug 11
Gilliam Joseph E
Officer · 32.04K sh · $5.78M
Aug 07
Thurman Alex R.
Officer · 20.00K sh · $3.60M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
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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