GLAUKOS Corp (NYSE:GKOS) has 321 institutional investors with active 13F positions as of December 2025.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| Janus Henderson Group Plc | 31 Mar, 2026 | 10,696,790 | 7,678,003 | 254.34% | $1,151,688,948.00 |
| BlackRock, Inc. | 31 Mar, 2026 | 9,164,538 | 508,743 | 5.88% | $1,034,767,984.00 |
| BlackRock, Inc. | 31 Mar, 2026 | 9,089,868 | -74,670 | -0.81% | $978,615,188.00 |
| VANGUARD GROUP INC | 31 Mar, 2026 | 6,020,492 | -26,028 | -0.43% | $679,773,752.00 |
| PRIMECAP MANAGEMENT CO/CA/ | 31 Mar, 2026 | 3,376,928 | 1,123,140 | 49.83% | $381,288,942.00 |
| PRIMECAP MANAGEMENT CO/CA/ | 31 Mar, 2026 | 3,370,628 | -6,300 | -0.19% | $362,881,812.00 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 31 Mar, 2026 | 3,208,363 | 3,208,363 | 0.00% | $345,412,361.00 |
| Janus Henderson Group Plc | 31 Mar, 2026 | 3,018,787 | 1,953,578 | 183.40% | $340,854,975.00 |
| Goldman Sachs Group Inc | 31 Mar, 2026 | 2,700,850 | 2,263,883 | 518.09% | $304,952,974.00 |
| VANGUARD CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 2,508,771 | 2,508,771 | 0.00% | $270,094,286.00 |
| State Street Corp | 31 Mar, 2026 | 2,182,617 | 60,215 | 2.84% | $234,980,546.00 |
| State Street Corp | 31 Mar, 2026 | 2,122,402 | 18,040 | 0.86% | $239,640,410.00 |
| Ameriprise Financial Inc | 31 Mar, 2026 | 2,104,294 | 204,010 | 10.74% | $237,595,989.00 |
| ALLIANCEBERNSTEIN L.P. | 31 Mar, 2026 | 1,643,448 | -90,026 | -5.19% | $185,561,714.00 |
| Ameriprise Financial Inc | 31 Mar, 2026 | 1,610,774 | -493,520 | -23.45% | $173,416,177.00 |
| MILLENNIUM MANAGEMENT LLC | 31 Mar, 2026 | 1,609,699 | 696,289 | 76.23% | $181,751,114.00 |
| CITADEL ADVISORS LLC | 31 Mar, 2026 | 1,446,926 | 1,419,970 | 5,267.73% | $155,776,053.00 |
| ALLIANCEBERNSTEIN L.P. | 31 Mar, 2026 | 1,397,556 | -245,892 | -14.96% | $157,798,048.00 |
| Holocene Advisors, LP | 31 Mar, 2026 | 1,383,715 | 84,421 | 6.50% | $148,970,757.00 |
| Goldman Sachs Group Inc | 31 Mar, 2026 | 1,374,958 | -1,325,892 | -49.09% | $148,027,978.00 |