GLAUKOS Corp
GKOS- Exchange
- NYSE
- Industry
- Surgical & Medical Instruments & Apparatus
- SEC CIK
- 0001192448
In the last 90 days, GLAUKOS Corp insiders filed 0 open-market purchases and 10 sales; 367 institutions reported holding it in 13F filings for Q2 2026, worth $8.44B in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in GLAUKOS Corp as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 315
- +21 vs. Q2 2025
- Shares held
- 55.9M
- −4.37M (−7.2%) vs. Q2 2025
- Total value
- $4.56B
- −$1.67B (−26.7%) vs. Q2 2025
- New holders
- 62
- 105 more added
- Sold out
- 41
- 116 more reduced
4 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting GKOS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 367 | $8.44B |
| Q1 2026 | 336 | $6.25B |
| Q4 2025 | 332 | $6.44B |
| Q3 2025 | 315 | $4.56B |
| Q2 2025 | 298 | $6.30B |
| Q1 2025 | 317 | $5.67B |
| Q4 2024 | 322 | $8.57B |
| Q3 2024 | 315 | $7.15B |
| Q2 2024 | 282 | $6.39B |
| Q1 2024 | 254 | $4.89B |
| Q4 2023 | 246 | $4.05B |
| Q3 2023 | 233 | $3.75B |
| Q2 2023 | 220 | $3.45B |
| Q1 2023 | 203 | $2.37B |
| Q4 2022 | 215 | $2.03B |
| Q3 2022 | 222 | $2.36B |
| Q2 2022 | 199 | $2.01B |
| Q1 2022 | 211 | $2.50B |
| Q4 2021 | 208 | $1.94B |
| Q3 2021 | 206 | $2.13B |
| Q2 2021 | 219 | $4.10B |
| Q1 2021 | 217 | $4.13B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding GLAUKOS Corp; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Taylor Frigon Capital Management LLC | 28,784 | $2.35M | 1.17% | −2,420−7.8% | Reduced |
| State of Alaska, Department of Revenue | 28,854 | $2.35M | 0.02% | −5,167−15.2% | Reduced |
| Teachers Retirement System of the State of Kentucky | 29,300 | $2.39M | 0.02% | −794−2.6% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 31,175 | $2.54M | 0.00% | −28,088−47.4% | Reduced |
| Illinois Municipal Retirement Fund | 32,709 | $2.67M | 0.03% | +4,465+15.8% | Added |
| MetLife Investment Management | 32,734 | $2.67M | 0.01% | −582−1.7% | Reduced |
| Algert Global LLC | 34,441 | $2.81M | 0.05% | +29,540+602.7% | Added |
| Capital Fund Management S.A. | 35,534 | $2.90M | 0.03% | +35,534 | New |
| The PNC Financial Services Group, Inc. | 36,034 | $2.94M | 0.00% | +462+1.3% | Added |
| State of Wisconsin Investment Board | 40,162 | $3.28M | 0.01% | +2,152+5.7% | Added |
| Wells Fargo & Company | 40,808 | $3.33M | 0.00% | +5,285+14.9% | Added |
| Thrivent Financial for Lutherans | 41,374 | $3.37M | 0.01% | −643−1.5% | Reduced |
| Deutsche Bank AG | 44,710 | $3.65M | 0.00% | +5,134+13.0% | Added |
| New York State Teachers Retirement System | 48,243 | $3.93M | 0.01% | 00.0% | Unchanged |
| Trexquant Investment LP | 48,759 | $3.98M | 0.04% | +48,759 | New |
| Thornburg Investment Management Inc | 49,069 | $4.00M | 0.05% | −1,361−2.7% | Reduced |
| Intech Investment Management LLC | 50,095 | $4.09M | 0.04% | +779+1.6% | Added |
| Neuberger Berman Group LLC | 50,801 | $4.14M | 0.00% | +8,991+21.5% | Added |
| New York State Common Retirement Fund | 52,174 | $4.25M | 0.01% | −335,727−86.5% | Reduced |
| California State Teachers Retirement System | 53,784 | $4.39M | 0.00% | +2,930+5.8% | Added |
| Ra Capital Management, L.P. | 54,180 | $4.42M | 0.05% | +54,180 | New |
| Envestnet Asset Management Inc | 55,883 | $4.56M | 0.00% | +7,444+15.4% | Added |
| Bellevue Group AG | 55,926 | $4.56M | 0.09% | 00.0% | Unchanged |
| Citadel Advisors LLC | 55,940 | $4.56M | 0.00% | −264,572−82.5% | Reduced |
| EFG Asset Management (North America) Corp. | 56,548 | $4.61M | 0.60% | +1,089+2.0% | Added |
| Voloridge Investment Management, LLC | 57,218 | $4.67M | 0.02% | +57,218 | New |
| Prudential Financial Inc | 57,647 | $4.70M | 0.01% | −1,725−2.9% | Reduced |
| Renaissance Technologies LLC | 57,892 | $4.72M | 0.01% | +57,892 | New |
| Allianz Asset Management GmbH | 58,654 | $4.78M | 0.01% | −5,374−8.4% | Reduced |
| Baird Financial Group, Inc. | 58,849 | $4.80M | 0.01% | −4,530−7.1% | Reduced |
| Great West Life Assurance Co | 61,348 | $4.99M | 0.01% | +514+0.8% | Added |
| Two Sigma Advisers, LP | 61,700 | $5.03M | 0.01% | +61,700 | New |
| Two Sigma Investments, LP | 66,939 | $5.46M | 0.01% | +66,939 | New |
| Sit Investment Associates Inc | 68,630 | $5.60M | 0.11% | +23,340+51.5% | Added |
| California Public Employees Retirement System | 72,353 | $5.90M | 0.00% | +4,076+6.0% | Added |
| DnB Asset Management AS | 73,550 | $6.00M | 0.02% | +16,267+28.4% | Added |
| Susquehanna Portfolio Strategies, LLC | 85,204 | $6.95M | 0.11% | −47,509−35.8% | Reduced |
| Barclays PLC | 91,152 | $7.43M | 0.00% | −18,218−16.7% | Reduced |
| Cubist Systematic Strategies, LLC | 94,900 | $7.74M | 0.11% | +94,900 | New |
| Victory Capital Management Inc | 97,307 | $7.94M | 0.00% | −25,235−20.6% | Reduced |
| Integral Health Asset Management, LLC | 100,000 | $8.15M | 0.59% | +50,000+100.0% | Added |
| Silvercrest Asset Management Group LLC | 101,447 | $8.27M | 0.05% | +48,832+92.8% | Added |
| WCM Investment Management, LLC | 102,887 | $8.36M | 0.02% | +170.0% | Added |
| Raymond James Financial Inc | 107,815 | $8.79M | 0.00% | −6,789−5.9% | Reduced |
| Swiss National Bank | 110,700 | $9.03M | 0.01% | +2,700+2.5% | Added |
| Price T Rowe Associates Inc | 116,906 | $9.53M | 0.00% | +9,364+8.7% | Added |
| FMR LLC | 121,406 | $9.90M | 0.00% | −6,215,213−98.1% | Reduced |
| Segall Bryant & Hamill, LLC | 125,490 | $10.2M | 0.14% | +3,094+2.5% | Added |
| Voya Investment Management LLC | 128,210 | $10.5M | 0.01% | +20,014+18.5% | Added |
| Granite Investment Partners, LLC | 137,347 | $11.2M | 0.64% | −55,233−28.7% | Reduced |
| Man Group plc | 138,587 | $11.3M | 0.02% | −8,483−5.8% | Reduced |
| Osterweis Capital Management Inc | 142,288 | $11.6M | 0.52% | +47,915+50.8% | Added |
| Keybank National Association | 142,447 | $11.6M | 0.04% | −228−0.2% | Reduced |
| UBS Asset Management Americas Inc | 145,621 | $11.9M | 0.00% | −133,772−47.9% | Reduced |
| SEI Investments Co | 148,108 | $12.1M | 0.01% | +27,353+22.7% | Added |
| Assenagon Asset Management S.A. | 157,545 | $12.8M | 0.02% | +145,487+1,206.6% | Added |
| Rhumbline Advisers | 157,697 | $12.9M | 0.01% | −1,586−1.0% | Reduced |
| Nuveen, LLC | 162,029 | $13.2M | 0.00% | +10,682+7.1% | Added |
| Legal & General Group Plc | 189,276 | $15.4M | 0.00% | −5,935−3.0% | Reduced |
| Amundi | 181,389 | $15.7M | 0.01% | −57,890−24.2% | Reduced |
| C WorldWide Group Holding A/S | 207,212 | $16.9M | 0.26% | +45,000+27.7% | Added |
| UBS Group AG | 210,093 | $17.1M | 0.00% | +57,253+37.5% | Added |
| Squarepoint Ops LLC | 210,814 | $17.2M | 0.04% | −86,334−29.1% | Reduced |
| Atika Capital Management LLC | 212,400 | $17.3M | 1.48% | −107,100−33.5% | Reduced |
| Public Sector Pension Investment Board | 223,708 | $18.2M | 0.07% | +28,866+14.8% | Added |
| Rhenman & Partners Asset Management AB | 230,000 | $18.8M | 2.08% | −5,000−2.1% | Reduced |
| Comerica Bank | 241,646 | $19.7M | 0.07% | +16,456+7.3% | Added |
| Dimensional Fund Advisors LP | 241,680 | $19.7M | 0.00% | −92,155−27.6% | Reduced |
| Freestone Grove Partners LP | 263,889 | $21.5M | 0.16% | +44,079+20.1% | Added |
| Allspring Global Investments Holdings, LLC | 267,498 | $22.3M | 0.04% | −13,317−4.7% | Reduced |
| Principal Financial Group Inc | 277,202 | $22.6M | 0.01% | −6,188−2.2% | Reduced |
| D. E. Shaw & Co., Inc. | 278,435 | $22.7M | 0.02% | +278,435 | New |
| Eventide Asset Management, LLC | 289,275 | $23.6M | 0.39% | +68,535+31.0% | Added |
| Artisan Partners Limited Partnership | 293,665 | $23.9M | 0.03% | +6,444+2.2% | Added |
| Jane Street Group, LLC | 307,183 | $25.1M | 0.03% | +221,012+256.5% | Added |
| Sofinnova Investments, Inc. | 312,994 | $25.5M | 1.57% | +312,994 | New |
| Fred Alger Management, LLC | 316,804 | $25.8M | 0.10% | −109,170−25.6% | Reduced |
| Marshall Wace, LLP | 324,527 | $26.5M | 0.03% | +93,842+40.7% | Added |
| Gilder Gagnon Howe & Co LLC | 334,532 | $27.3M | 0.28% | −366,102−52.3% | Reduced |
| Iron Triangle Partners LP | 342,804 | $28.0M | 3.98% | +71,641+26.4% | Added |
| Champlain Investment Partners, LLC | 358,419 | $29.2M | 0.22% | −4,607−1.3% | Reduced |
| Qube Research & Technologies Ltd | 367,528 | $30.0M | 0.04% | +171,163+87.2% | Added |
| Royal Bank of Canada | 369,439 | $30.1M | 0.01% | +173,064+88.1% | Added |
| Bank of New York Mellon Corp | 381,394 | $31.1M | 0.01% | −11,148−2.8% | Reduced |
| T. Rowe Price Investment Management, Inc. | 395,653 | $32.3M | 0.02% | +395,653 | New |
| Morgan Stanley | 429,578 | $35.0M | 0.00% | −66,740−13.4% | Reduced |
| Goldman Sachs Group Inc | 436,967 | $35.6M | 0.01% | −123,953−22.1% | Reduced |
| Loomis Sayles & Co L P | 447,429 | $36.5M | 0.04% | −146,183−24.6% | Reduced |
| AustralianSuper Pty Ltd | 449,846 | $36.7M | 0.17% | +43,750+10.8% | Added |
| Clearbridge Investments, LLC | 471,552 | $38.5M | 0.03% | −7,240−1.5% | Reduced |
| Bank of America Corp | 474,930 | $38.7M | 0.00% | +189,284+66.3% | Added |
| Capital International Investors | 511,510 | $41.7M | 0.01% | +264,971+107.5% | Added |
| Holocene Advisors, LP | 547,052 | $44.6M | 0.10% | −498,834−47.7% | Reduced |
| Riverbridge Partners LLC | 569,644 | $46.5M | 0.78% | +165,673+41.0% | Added |
| Macquarie Group Ltd | 600,228 | $48.9M | 0.06% | +526,394+712.9% | Added |
| Invesco Ltd. | 607,442 | $49.5M | 0.01% | −389,650−39.1% | Reduced |
| Northern Trust Corp | 627,660 | $51.2M | 0.01% | −7,352−1.2% | Reduced |
| JPMorgan Chase & Co | 670,083 | $54.6M | 0.00% | +27,646+4.3% | Added |
| Point72 Asset Management, L.P. | 690,723 | $56.3M | 0.12% | −28,539−4.0% | Reduced |
| Charles Schwab Investment Management Inc | 702,380 | $57.3M | 0.01% | +1,922+0.3% | Added |