GlaukosGKOS
13F holders, Q1 2025 (March 31)317holders −5
51new positions
55sold out
7famous investors
$98.43avg. 13F price*
At the end of Q1 2025, 317 institutions reported holding Glaukos Corp. (GKOS) in their 13F filings, down 5 from Q4 2024. 51 opened new positions and 55 sold out. The largest holders were BlackRock, Inc. ($842.1M), FMR LLC ($643.4M) and Vanguard Group Inc. ($587.1M). 7 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Mario Gabelli (0.0% of GAMCO Investors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Glaukos Corp.
- CUSIP
- 377322102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 51 | $190.2M |
| Exits | 55 | $241.1M |
All 13F filers, Q4 2024 → Q1 2025: 6,201,845 shares bought and 5,789,082 shares sold, net +412,763 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 317 holders
| BlackRock, Inc. | 0.02% | Reduce -2.7% | 8,556,385 | $842.1M |
| FMR LLC | 0.04% | Add +7.0% | 6,537,647 | $643.4M |
| Vanguard Group Inc. | 0.01% | Reduce -0.2% | 5,965,115 | $587.1M |
| Wellington Management Group LLP | 0.04% | Add +6.1% | 2,290,790 | $225.5M |
| State Street Corp. | 0.01% | Reduce -3.8% | 1,984,393 | $195.3M |
| Ameriprise Financial Inc. | 0.05% | Add +0.7% | 1,943,955 | $191.3M |
| Invesco Ltd. | 0.03% | Reduce -0.5% | 1,452,116 | $142.9M |
| Alliancebernstein L.P. | 0.05% | Add +56.5% | 1,277,539 | $125.7M |
| Primecap Management Co. | 0.10% | Add +0.3% | 1,218,475 | $119.9M |
| Geode Capital Management, LLC | 0.01% | Add +1.5% | 1,215,064 | $119.6M |
| Brown Capital Management LLC | 3.54% | Reduce -11.5% | 1,192,589 | $117.4M |
| Westfield Capital Management Co. LP | 0.52% | Add +34.3% | 1,084,184 | $106.7M |
| Driehaus Capital Management LLC | 0.92% | Add +18.7% | 973,625 | $95.8M |
| Janus Henderson Group PLC | 0.05% | Reduce -17.6% | 900,367 | $91.8M |
| Gilder Gagnon Howe & Co. LLC | 1.07% | Add +1.4% | 836,529 | $82.3M |
| Holocene Advisors, LP | 0.22% | Add +141.3% | 746,768 | $73.5M |
| William Blair Investment Management, LLC | 0.21% | Reduce -7.9% | 745,290 | $73.4M |
| Norges Bank | 0.01% | Add +16.2% | 654,931 | $64.5M |
| Charles Schwab Investment Management Inc. | 0.01% | Reduce -1.3% | 641,978 | $63.2M |
| Loomis Sayles & Co. L P | 0.09% | Reduce -2.1% | 640,150 | $63.0M |
| Braidwell LP | 3.20% | Add +116.2% | 624,435 | $61.5M |
| Fred Alger Management, LLC | 0.34% | Reduce -20.8% | 605,690 | $59.6M |
| JPMorgan Chase & Co. | 0.00% | Add +45.5% | 583,048 | $57.4M |
| Northern Trust Corp. | 0.01% | Reduce -1.6% | 569,729 | $56.1M |
| Capital World Investors | 0.01% | No change | 550,322 | $54.2M |
| Morgan Stanley | 0.00% | Add +8.7% | 537,456 | $52.9M |
| Summit Partners Public Asset Management, LLC | 2.08% | Reduce -39.6% | 441,190 | $43.4M |
| Dimensional Fund Advisors LP | 0.01% | Add +37.5% | 429,326 | $42.3M |
| Citadel Advisors | 0.04% | Reduce -64.8% | 420,496 | $41.4M |
| New York State Common Retirement Fund | 0.05% | Reduce -0.9% | 377,666 | $37.2M |
| Goldman Sachs Group Inc. | 0.01% | Reduce -7.5% | 369,147 | $36.3M |
| Bank of New York Mellon Corp | 0.01% | Reduce -7.4% | 368,258 | $36.2M |
| Clearbridge Investments, LLC | 0.03% | New | 349,578 | $34.4M |
| Marshall Wace, LLP | 0.05% | New | 344,771 | $33.9M |
| Principal Financial Group Inc. | 0.02% | Add +21.8% | 327,036 | $32.2M |
| Nuveen, LLC | 0.01% | — | 319,795 | $31.5M |
| Allspring Global Investments Holdings, LLC | 0.05% | Reduce -6.3% | 320,758 | $31.1M |
| Lord, Abbett & Co. LLC | 0.11% | Reduce -76.3% | 310,361 | $30.5M |
| Artisan Partners Limited Partnership | 0.05% | Reduce -35.9% | 302,393 | $29.8M |
| Eventide Asset Management, LLC | 0.57% | New | 290,921 | $28.6M |
| Riverbridge Partners LLC | 0.45% | Reduce -8.8% | 285,462 | $28.1M |
| Rhenman & Partners Asset Management AB | 3.05% | Add +639.1% | 270,000 | $26.6M |
| Atika Capital Management LLC | 3.98% | Add +10.0% | 263,500 | $25.9M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Add +41.7% | 229,994 | $22.6M |
| Royal Bank of Canada | 0.01% | Add +103.2% | 228,249 | $22.5M |
| Qube Research & Technologies Ltd | 0.03% | Add +753.6% | 214,880 | $21.1M |
| Bank of America Corp. | 0.00% | Add +1.4% | 212,246 | $20.9M |
| Amundi | 0.01% | Add +96.9% | 227,290 | $19.8M |
| Comerica Bank | 0.08% | Add +31.5% | 199,301 | $19.6M |
| Ra Capital Management, L.P. | 0.31% | New | 190,256 | $18.7M |
| RTW Investments, LP | 0.29% | New | 190,000 | $18.7M |
| Legal & General Group Plc | 0.00% | Reduce -1.4% | 184,056 | $18.1M |
| Public Sector Pension Investment Board | 0.07% | Add +27.3% | 174,836 | $17.2M |
| Jane Street Group, LLC | 0.03% | Add +781.9% | 173,482 | $17.1M |
| C WorldWide Group Holding A/S | 0.20% | No change | 162,212 | $16.0M |
| Eversept Partners, LP | 1.77% | New | 158,957 | $15.6M |
| Voya Investment Management LLC | 0.02% | Reduce -22.6% | 155,324 | $15.3M |
| Keybank National Association | 0.06% | Reduce 0.0% | 142,641 | $14.0M |
| Rhumbline Advisers | 0.01% | Reduce -0.3% | 141,354 | $13.9M |
| Victory Capital Management Inc. | 0.01% | Add +88.7% | 140,411 | $13.8M |
| First Turn Management, LLC | 2.70% | Add +41.8% | 136,241 | $13.4M |
| Avidity Partners Management LP | 2.72% | Reduce -21.2% | 134,000 | $13.2M |
| Raymond James Financial Inc. | 0.00% | Add +14.4% | 128,966 | $12.7M |
| FIL Ltd | 0.01% | Add +1507.7% | 113,966 | $11.2M |
| Swiss National Bank | 0.01% | Reduce -1.1% | 106,900 | $10.5M |
| Great Lakes Advisors, LLC | 0.09% | Reduce -6.3% | 106,200 | $10.5M |
| Segall Bryant & Hamill, LLC | 0.15% | Reduce -2.8% | 101,679 | $10.0M |
| Sei Investments Co. | 0.01% | Add +14.0% | 101,073 | $10.0M |
| WCM Investment Management, LLC | 0.03% | Reduce -0.8% | 96,823 | $9.9M |
| Intech Investment Management LLC | 0.09% | Add +212.7% | 92,564 | $9.1M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.02% | Add +8.3% | 89,324 | $8.8M |
| UBS Group AG | 0.00% | Add +24.4% | 78,356 | $7.7M |
| Millennium Management | 0.01% | Reduce -80.1% | 78,232 | $7.7M |
| Citigroup Inc. | 0.01% | Reduce -4.2% | 77,546 | $7.6M |
| Kingdon Capital Management, L.L.C. | 1.52% | New | 74,400 | $7.3M |
| California Public Employees Retirement System | 0.00% | Reduce -16.1% | 68,924 | $6.8M |
| Susquehanna International Group, LLP | 0.01% | Add +207.9% | 67,507 | $6.6M |
| Barclays PLC | 0.00% | Reduce -27.7% | 66,335 | $6.5M |
| Zweig-DiMenna Associates LLC | 0.96% | Add +3.6% | 60,800 | $6.0M |
| CANADA LIFE ASSURANCE Co | 0.01% | Reduce -7.8% | 59,834 | $5.9M |
| Osterweis Capital Management Inc. | 0.39% | New | 59,133 | $5.8M |
| Allianz Asset Management GmbH | 0.01% | Reduce -22.2% | 56,923 | $5.6M |
| Bellevue Group AG | 0.12% | Reduce -8.1% | 55,926 | $5.5M |
| Baird Financial Group, Inc. | 0.01% | Reduce -1.4% | 53,834 | $5.3M |
| Prudential Financial Inc. | 0.01% | Reduce -3.1% | 53,789 | $5.3M |
| EFG Asset Management (North America) Corp. | 0.87% | Reduce -12.4% | 53,076 | $5.2M |
| California State Teachers Retirement System | 0.01% | Reduce -1.0% | 50,433 | $5.0M |
| Thornburg Investment Management Inc. | 0.07% | Add +10.6% | 50,430 | $5.0M |
| ExodusPoint Capital Management, LP | 0.06% | New | 49,111 | $4.8M |
| New York State Teachers Retirement System | 0.01% | No change | 48,243 | $4.7M |
| State of Wisconsin Investment Board | 0.01% | Add +4.2% | 46,985 | $4.6M |
| Blair William & Co. | 0.01% | Reduce -1.4% | 46,732 | $4.6M |
| Ensign Peak Advisors, Inc | 0.01% | Reduce -31.2% | 42,784 | $4.2M |
| Thrivent Financial for Lutherans | 0.01% | Reduce -5.0% | 40,499 | $4.0M |
| Deutsche Bank AG | 0.00% | Reduce -8.9% | 39,936 | $3.9M |
| Jump Financial, LLC | 0.06% | New | 39,142 | $3.9M |
| Harbor Capital Advisors, Inc. | 0.18% | Add +59.5% | 39,132 | $3.9M |
| Russell Investments Group, Ltd. | 0.01% | Add +174.9% | 38,393 | $3.8M |
| T. Rowe Price Associates Inc. | 0.00% | Add +7.3% | 37,765 | $3.7M |
| Illinois Municipal Retirement Fund | 0.05% | Add +25.4% | 36,901 | $3.6M |
"% of holder's portfolio" is GKOS's weight in each manager's 13F, not the share of Glaukos Corp. the manager owns.